The sum of the measures of the interior angles of a regular polygon is given. Find the number of sides in the polygon.

4500

Answers

Answer 1

The number of sides in the regular polygon is 27.

The sum of the measures of the interior angles of a regular polygon is given as 4500 degrees. To find the number of sides in the polygon, we can use the formula for the sum of interior angles of a polygon, which is given by:

Sum = (n - 2) * 180 degrees

Here, 'n' represents the number of sides in the polygon. We can rearrange the formula to solve for 'n' as follows:

n = (Sum / 180) + 2

Substituting the given sum of 4500 degrees into the equation, we have:

n = (4500 / 180) + 2

n = 25 + 2

n = 27

Therefore, the regular polygon has 27 sides.

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Related Questions



Without using a calculator, determine if it is possible to form a triangle with the given side lengths. Explain.

√99 yd, √48 yd, √65 yd

Answers

No, it is not possible to form a triangle with the given side lengths of √99 yd, √48 yd, and √65 yd.

To determine if it is possible to form a triangle, we need to check if the sum of any two sides is greater than the third side. In this case, let's compare the given side lengths:

√99 yd < √48 yd + √65 yd

9.95 yd < 6.93 yd + 8.06 yd

9.95 yd < 14.99 yd

Since the sum of the two smaller side lengths (√48 yd and √65 yd) is not greater than the longest side length (√99 yd), the triangle inequality theorem is not satisfied. Therefore, it is not possible to form a triangle with these side lengths.

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Showing all working, determine the base 7 expansion of n = ( (2458)9.

Answers

The base 7 expansion of n = ((2458)₉ is (2151)₇.

What is the base 7 representation of ((2458)₉?

To determine the base 7 expansion of the number n = (2458)₉, we need to convert it to base 10 first and then convert it to base 7.

Let's perform the conversion step by step:

Convert from base 9 to base 10.

[tex]n = 2 * 9^3 + 4 * 9^2 + 5 * 9^1 + 8 * 9^0[/tex]

  = 2 * 729 + 4 * 81 + 5 * 9 + 8 * 1

  = 1458 + 324 + 45 + 8

  = 1835

Convert from base 10 to base 7.

To convert 1835 to base 7, we divide it repeatedly by 7 and collect the remainders.

1835 ÷ 7 = 262 remainder 1

262 ÷ 7 = 37 remainder 1

37 ÷ 7 = 5 remainder 2

5 ÷ 7 = 0 remainder 5

Reading the remainders in reverse order, we get (2151)₇ as the base 7 expansion of n.

Therefore, the base 7 expansion of n = (2458)₉ is (2151)₇.

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Write an equation for each translation. x²+y²=25 ; right 2 units and down 4 units

Answers

The translated equation would be: (x - 2)² + (y - 4)² = 25

To translate the equation x² + y² = 25 right 2 units and down 4 units, we need to adjust the coordinates of the equation.

First, let's break down the translation process. Moving right 2 units means we need to subtract 2 from the x-coordinate of every point on the graph. Moving down 4 units means we need to subtract 4 from the y-coordinate of every point on the graph.

The translated equation would be: (x - 2)² + (y - 4)² = 25

In this equation, the x-coordinate has been shifted 2 units to the right, and the y-coordinate has been shifted 4 units down.

The overall effect is a translation of the original graph to the right and downward by the specified amounts.

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f) -2 +4-8 + 16-32 + ... to 12 terms​

Answers

Answer:

Step-by-step explanation:

i need it to so all ik is u

When a vertical beam of light passes through a transparent medium, the rate at which its intensity I decreases is proportiona to I(t), where t represents the thickness of the medium (in feet). In clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity I_0of the incident beam.
Find the constant of proportionality k,where dI/dt=KI
What is the intensity of the beam 16 feet below the surface? (Give your answer in terms of I_0. Round any constants or coefficients to five decimal places.)

Answers

When a vertical beam of light passes through a transparent medium, the rate at which its intensity decreases is proportional to its current intensity. In other words, the decrease in intensity, dI, concerning the thickness of the medium, dt, can be represented as dI/dt = KI, where K is the constant of proportionality.

To find the constant of proportionality, K, we can use the given information. In clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity, I_0, of the incident beam. This can be expressed as:

I(3) = 0.25I_0

Now, let's solve for K. To do this, we'll use the derivative form of the equation dI/dt = KI.

Taking the derivative of I concerning t, we get:

dI/dt = KI

To solve this differential equation, we can separate the variables and integrate both sides.

∫(1/I) dI = ∫K dt

This simplifies to:

ln(I) = Kt + C

Where C is the constant of integration. Now, let's solve for C using the initial condition I(3) = 0.25I_0.

ln(I(3)) = K(3) + C

Since I(3) = 0.25I_0, we can substitute it into the equation:

ln(0.25I_0) = 3K + C

Now, let's solve for C by rearranging the equation:

C = ln(0.25I_0) - 3K

We now have the equation in the form:

ln(I) = Kt + ln(0.25I_0) - 3K

Next, let's find the value of ln(I) when t = 16 feet. Substituting t = 16 into the equation:

ln(I) = K(16) + ln(0.25I_0) - 3K

Now, let's simplify this equation by combining like terms:

ln(I) = 16K - 3K + ln(0.25I_0)

Simplifying further:

ln(I) = 13K + ln(0.25I_0)

Therefore, the intensity of the beam 16 feet below the surface is represented by ln(I) = 13K + ln(0.25I_0). Remember to round any constants or coefficients to five decimal places.

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The measure θ of an angle in standard position is given. 180°

b. Find the exact values of cosθ and sin θ for each angle measure.

Answers

An angle in standard position is an angle whose vertex is at the origin and whose initial side is on the positive x-axis. The measure of an angle in standard position is the angle between the initial side and the terminal side.

An angle with a measure of 180° is a straight angle. A straight angle is an angle that measures 180°. Straight angles are formed when two rays intersect at a point and form a straight line.

The terminal side of an angle with a measure of 180° lies on the negative x-axis. This is because the angle goes from the positive x-axis to the negative x-axis as it rotates counterclockwise from the initial side.

The angle measure is 180°, and the angle is a straight angle.

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f(x)=−2x 4 −2x 3 +60x 2 −22.
On which intervals is the graph of f concave down? Choose 1 answer: x< 5/2 and x>5 x<− 5/2 and x>2 − 25 2 only

Answers

The graph of f is concave down on the interval x < 5/2 and x < -2. The answer is option (B).

The given function is f(x) = -2x⁴ - 2x³ + 60x² - 22. To determine the intervals on which the graph of f is concave down, we need to find the second derivative of the function.

First, we differentiate f(x) with respect to x:

f'(x) = -8x³ - 6x² + 120x.

Next, we differentiate f'(x) with respect to x to find the second derivative:

f''(x) = -24x² - 12x + 120.

To determine when f is concave down, we look for intervals where f''(x) is negative. Simplifying f''(x), we have:

f''(x) = -12(2x² + x - 10) = -12(2x - 5)(x + 2).

To find the critical points of f''(x), we set each factor equal to zero:

2x - 5 = 0, which gives x = 5/2.

x + 2 = 0, which gives x = -2.

Now, we analyze the signs of f''(x) based on the critical points:

For 2x - 5 < 0, we have x < 5/2.

For x + 2 < 0, we have x < -2.

Therefore, On the range between x 5/2 and x -2, the graph of f is concave downward. The best choice is (B).

Hence, the required answer is option B.

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Let A, B, C be three sets. Prove that A\(B U C) is a subset of the intersection of A\B and A\C.

Answers

A\(B U C) ⊆ (A\B) ∩ (A\C) is a subset of the intersection.

To prove that A\(B U C) is a subset of the intersection of A\B and A\C, we need to show that every element in A\(B U C) is also an element of (A\B) ∩ (A\C).

Let x be an arbitrary element in A\(B U C). This means that x is in set A but not in the union of sets B and C. In other words, x is in A and not in either B or C.

Now, we need to show that x is also in (A\B) ∩ (A\C). This means that x must be in both A\B and A\C.

Since x is not in B, it follows that x is in A\B. Similarly, since x is not in C, it follows that x is in A\C.

Therefore, x is in both A\B and A\C, which means x is in their intersection. Hence, A\(B U C) is a subset of (A\B) ∩ (A\C).

In conclusion, every element in A\(B U C) is also in the intersection of A\B and A\C, proving that A\(B U C) is a subset of (A\B) ∩ (A\C).

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Electric utility poles in the form of right cylinders are made out of wood that costs
$15.45 per cubic foot. Calculate the cost of a utility pole with a diameter of 1 ft and a
height of 30 ft. Round your answer to the nearest cent.

Answers

Answer:$364

Step-by-step explanation:

To find the number of cubic feet in this cylinder, we would need to find the volume by multiplying the height in feet of the cylinder by pi by the radius squared.

30 x pi x 0.5^2 = 23.56 cubic feet

since our height is given to us as 30, and the diameter is 1, we know our radius is 0.5.

After that, we simply multiply the charge per cubic foot ($15.45) by the number we got for volume (23.56)

$15.45 x 23.56 = $364.002 which rounded to the nearest cent = $364

Use the difference quotient (Newton's quotient) to find when the function f(x)=2x^2−4x+5 has a local minimum.

Answers

The function f(x) = 2x^2 - 4x + 5 has a local minimum at x = 1.

To find when the function f(x) = 2x^2 - 4x + 5 has a local minimum, we can use Newton's quotient.

Step 1: Find the derivative of the function f(x) with respect to x.

The derivative of f(x) = 2x^2 - 4x + 5 is f'(x) = 4x - 4.

Step 2: Set the derivative equal to zero and solve for x to find the critical points.

Setting f'(x) = 0, we have 4x - 4 = 0. Solving for x, we get x = 1.

Step 3: Use the second derivative test to determine whether the critical point is a local minimum or maximum.

To do this, we need to find the second derivative of f(x). The second derivative of f(x) = 2x^2 - 4x + 5 is f''(x) = 4.

Step 4: Substitute the critical point x = 1 into the second derivative f''(x).

Substituting x = 1 into f''(x), we get f''(1) = 4.

Step 5: Interpret the results.

Since f''(1) = 4, which is positive, the function f(x) = 2x^2 - 4x + 5 has a local minimum at x = 1.

Therefore, the function f(x) = 2x^2 - 4x + 5 has a local minimum at x = 1.

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How do you find the measure?

Answers

The measures are given as;

<ABC = 90 degrees

<BAC = 20 degrees

<ACB = 70 degrees

How to determine the measures

To determine the measures, we need to know the following;

The sum of the angles in a triangle is 180 degreesAdjacent angles are equalSupplementary angles are pairs that sum up to 180 degreesCorresponding angles are equal

Then, we have that;

Angle ABC = 180 - 70 + 20

Add the values, we have;

<ABC = 90 degrees

<BAC = 90 - 70

<BAC = 20 degrees

<ACB is adjacent to 70 degrees

<ACB = 70 degrees

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If an auto license plate has four digits followed by four letters. How many different
license plates are possible if
a. Digits and letters are not repeated on a plate?
b. Repetition of digits and letters are permitted?

Answers

a. There are 10 choices for each digit and 26 choices for each letter, so the number of different license plates possible without repetition is 10 * 10 * 10 * 10 * 26 * 26 * 26 * 26 = 456,976,000.

b. With repetition allowed, there are still 10 choices for each digit and 26 choices for each letter. Since repetition is permitted, each digit and letter can be chosen independently, so the total number of different license plates possible is 10^4 * 26^4 = 45,697,600.

In part (a), where repetition is not allowed, we consider each position on the license plate separately. For the four digits, there are 10 choices (0-9) for each position. Similarly, for the four letters, there are 26 choices (A-Z) for each position. Therefore, we multiply the number of choices for each position to find the total number of different license plates possible without repetition.

In part (b), where repetition is permitted, the choices for each position are still the same. However, since repetition is allowed, each position can independently have any of the 10 digits or any of the 26 letters. We raise the number of choices for each position to the power of the number of positions to find the total number of different license plates possible.

It's important to note that the above calculations assume that the order of the digits and letters on the license plate matters. If the order does not matter, such as when considering combinations instead of permutations, the number of possible license plates would be different.

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A 14-inch by 11-inch picture is centered within a 16-inch by 15-
inch frame. What is the distance from a corner of the frame to a corresponding
corner of the picture?

Answers

13 inches wide and 16 inches high, hope this helps!

Find the equation of the linear function represented by the table below in
slope-intercept form.
Answer:
X
-2
1
4
7
y
-10
-1
8
17

Answers

The equation of the linear function is y = 3x - 4, where the slope (m) is 3 and the y-intercept (b) is -4.

To find the equation of the linear function represented by the given table, we can use the slope-intercept form of a linear equation, which is y = mx + b, where m represents the slope and b represents the y-intercept.

To determine the slope (m), we can use the formula:

m = (change in y) / (change in x)

Let's calculate the slope using the values from the table:

m = (8 - (-10)) / (4 - (-2))

m = 18 / 6

m = 3.

Now that we have the slope (m), we can determine the y-intercept (b) by substituting the values of a point (x, y) from the table into the slope-intercept form.

Let's use the point (1, -1):

-1 = 3(1) + b

-1 = 3 + b

b = -4

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An engineer is designing a conical container it needs needs to hold a specific volume and have a specific height. she needs to know the radius of the container r in terms of its volume, v, and height, h. create an equation that the engineer can use to determine the radius. the formula for v= 1/3 pie r2 h

Answers

The equation the engineer can use to determine the radius of the conical container is r = √((3v) / (π * h)).

What is conical container?

The area that a conical cylinder occupies is its volume. An inverted frustum, a three-dimensional shape, is a conical cylinder. It is created when an inverted cone's vertex is severed by a plane parallel to the shape's base.

To determine the equation for the radius of the conical container in terms of its volume (V) and height (h), we can rearrange the given formula:

V = (1/3) * π * r^2 * h

Let's solve this equation for r:

V = 1/3 * π * r^2 * h

Multiplying both sides of the equation by 3, we get:

3V = π * r^2 * h

Dividing both sides of the equation by π * h, we get:

r^2 = (3v) / (π * h)

Finally, taking the square root of both sides of the equation, we can determine the equation for the radius (r) of the conical container:

r = √((3v) / (π * h))

Therefore, the radius of the conical container can be calculated using the equation r = √((3v) / (π * h)).

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I need help answering this question!!! will give brainliest

Answers

The vertical distance travelled at 5 seconds is 12 meters

How to estimate the vertical distance travelled

From the question, we have the following parameters that can be used in our computation:

The graph

The time of travel is given as

Time = 5 seconds

From the graph, the corresponding distance to 5 seconds 12 meters

This means that

Time = 5 seconds at distance = 12 meters

Hence, the vertical distance travelled is 12 meters

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Which of the following describes the proposition (q V ~(q ^ (p ^ ~p)))? a. It is both a tautology and a contradiction b. It is a contradiction c. It is a tautology d. It is neither a tautology nor a contradiction Which of the following expressions is the negation of the expression: x = 5 and y> 10? a. x # 5 or y ≤ 10 b. x # 5 and y < 10 
c. x # 5 and y ≤ 10 
d. x # 5 or y < 10 

Answers

The negation of the expression "x = 5 and y > 10" is "x ≠ 5 or y ≤ 10."

The original expression, "x = 5 and y > 10," requires both conditions to be simultaneously true for the entire statement to be true. The negation of this expression aims to negate the conjunction "and" and change it to a disjunction "or." Additionally, the inequality signs are reversed to represent the opposite conditions.

Therefore, the negation of the expression "x = 5 and y > 10" is "x ≠ 5 or y ≤ 10."

Negation is an important concept in logic as it allows us to express the opposite of a given statement. In the case of conjunctions (using "and"), the negation is represented by a disjunction (using "or"), and the inequality signs are reversed to capture the opposite conditions. Understanding how to negate logical expressions is crucial in evaluating the validity and truthfulness of statements.

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Manuel has a $300,000 loan to be paid back with 5. 329% interest over 30 years.

What are Manuel's monthly payments? ___

How much in total does Manuel pay to the bank? ___

How much interest does Manuel pay? ____

Comparing Michele and Manuel's interest, how much more does Manuel pay over the lifetime of the loan? _____

Answers

To calculate Manuel's monthly payments, we need to use the formula for a fixed-rate mortgage payment:

Monthly Payment = P * r * (1 + r)^n / ((1 + r)^n - 1)

Where:

P = Loan amount = $300,000

r = Monthly interest rate = 5.329% / 12 = 0.04441 (decimal)

n = Total number of payments = 30 years * 12 months = 360

Plugging in the values, we get:

Monthly Payment = 300,000 * 0.04441 * (1 + 0.04441)^360 / ((1 + 0.04441)^360 - 1) ≈ $1,694.18

Manuel will make monthly payments of approximately $1,694.18.

To calculate the total amount Manuel pays to the bank, we multiply the monthly payment by the number of payments:

Total Payment = Monthly Payment * n = $1,694.18 * 360 ≈ $610,304.80

Manuel will pay a total of approximately $610,304.80 to the bank.

To calculate the total interest paid by Manuel, we subtract the loan amount from the total payment:

Total Interest = Total Payment - Loan Amount = $610,304.80 - $300,000 = $310,304.80

Manuel will pay approximately $310,304.80 in interest.

To compare Michele and Manuel's interest, we need the interest amount paid by Michele. If you provide the necessary information about Michele's loan, I can make a specific comparison.

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Problem 1. Consider a market in which the supply and demand sets are S={(q,p):q−3p−7},D={(q,p):q=38−12p}. Write down the recurrence equation which determines the sequence pt of prices, assuming that the suppliers operate according to the cobweb model. Find the explicit solution given that p0=4, and describe in words how thw sequence pt behaves. Write down a formula for qt, the quantity on the market in year t.

Answers

The formula qt = 38 - 12pt represents the quantity on the market in year t based on the price in that year.

The cobweb model is used to determine the sequence of prices in a market with given supply and demand sets. The sequence exhibits oscillations and approaches a steady state value.

In the cobweb model, suppliers base their pricing decisions on the previous price. The recurrence equation pt = (38 - 12pt-1)/13 is derived from the demand and supply equations. It represents the relationship between the current price pt and the previous price pt-1. Given the initial price p0 = 4, the explicit solution for the sequence of prices can be derived. The solution indicates that as time progresses, the prices approach a steady state value of 38/13. However, due to the cobweb effect, there will be oscillations around this steady state.

To calculate the quantity on the market in year t, qt, we can substitute the price pt into the demand equation q = 38 - 12p. This gives us the formula qt = 38 - 12pt, which represents the quantity on the market in year t based on the price in that year.

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Find the eigenvalues (A) of the matrix A = [ 3 0 1
2 2 2
-2 1 2 ]

Answers

The eigenvalues of the matrix A = [ 3 0 1 2 2 2 -2 1 2 ] are:

λ₁ = (5 - √17)/2 and λ₂ = (5 + √17)/2

To find the eigenvalues (A) of the matrix A = [ 3 0 1 2 2 2 -2 1 2 ], we use the following formula:

Eigenvalues (A) = |A - λI

|where λ represents the eigenvalue, I represents the identity matrix and |.| represents the determinant.

So, we have to find the determinant of the matrix A - λI.

Thus, we will substitute A = [ 3 0 1 2 2 2 -2 1 2 ] and I = [1 0 0 0 1 0 0 0 1] to get:

| A - λI | = | 3 - λ 0 1 2 2 - λ 2 -2 1 2 - λ |

To find the determinant of the matrix, we use the cofactor expansion along the first row:

| 3 - λ 0 1 2 2 - λ 2 -2 1 2 - λ | = (3 - λ) | 2 - λ 2 1 2 - λ | + 0 | 2 - λ 2 1 2 - λ | - 1 | 2 2 1 2 |

Therefore,| A - λI | = (3 - λ) [(2 - λ)(2 - λ) - 2(1)] - [(2 - λ)(2 - λ) - 2(1)] = (3 - λ) [(λ - 2)² - 2] - [(λ - 2)² - 2] = (λ - 2) [(3 - λ)(λ - 2) + λ - 4]

Now, we find the roots of the equation, which will give the eigenvalues:

λ - 2 = 0 ⇒ λ = 2λ² - 5λ + 2 = 0

The two roots of the equation λ² - 5λ + 2 = 0 are:

λ₁ = (5 - √17)/2 and λ₂ = (5 + √17)/2

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What is the equation of a vertical ellipse with a center at point (8,-4) , a major axis that is 12 units long, and a minor axis that is 6 units long?

Answers

The equation of the vertical ellipse with a center at point (8, -4), a major axis of 12 units, and a minor axis of 6 units is ((x - 8)^2 / 36) + ((y + 4)^2 / 144) = 1.

To find the equation of a vertical ellipse, we need to determine the values of the center and the lengths of the major and minor axes. The center of the ellipse is given as (8, -4), the major axis has a length of 12 units, and the minor axis has a length of 6 units.

The general equation of a vertical ellipse with center (h, k), a length of 2a along the major axis, and a length of 2b along the minor axis is:

((x - h)^2 / a^2) + ((y - k)^2 / b^2) = 1

Plugging in the given values, we have:

((x - 8)^2 / 6^2) + ((y + 4)^2 / 12^2) = 1

Simplifying further, we get the equation of the vertical ellipse:

((x - 8)^2 / 36) + ((y + 4)^2 / 144) = 1

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Find the volume of the sphere with a diameter of 6 inches. Leave the answer in terms of pie.

Answers

Answer:

36π

Step-by-step explanation:

Volume = 4/3πr³

V=4/3π(3)³

V= 36π

Answer:

36π in³

Step-by-step explanation:

The volume of a sphere is:

[tex]\displaystyle{V = \dfrac{4}{3}\pi r^3}[/tex]

where r represents the radius. We are given the diameter of 6 inches, and a half of a diameter is the radius. Hence, 6/2 = 3 inches which is our radius. Therefore,

[tex]\displaystyle{V = \dfrac{4}{3}\pi \cdot 3^3}\\\\\displaystyle{V=4\pi \cdot 3^2}\\\\\displaystyle{V=4\pi \cdot 9}\\\\\displaystyle{V=36 \pi \ \ \text{in}^3}[/tex]

Hence, the volume is 36π in³

Decisions for Tomorrow Suppose the hourly wage rate is $24 in the United States and $3 in China,and productivity is 20 units per hour in the United States and 4 units per hour in China. Please round your responses to two decimal places. a.What are per unit labor costs in the United States? per unit of labor b.What are per unit labor costs in China? per unit of labor c. If a conipany's goal is to minimize per unit labor costs,where would the production facility be located? China or the United States?

Answers

a) Per unit labor cost in the United States is $1.20.

b) Per unit labor cost in China is $0.75.

c) The company should locate its production facility in China to minimize per unit labor costs as it is lower than in the United States.

a) The per unit labor cost in the United States can be calculated as follows:

Per unit labor cost = Hourly wage rate / Productivity per hour

= $24 / 20 units per hour

= $1.20 per unit of labor

b) The per unit labor cost in China can be calculated as follows:

Per unit labor cost = Hourly wage rate / Productivity per hour

= $3 / 4 units per hour

= $0.75 per unit of labor

c) If a company's goal is to minimize per unit labor costs, the production facility should be located in China because the per unit labor cost is lower than in the United States. Therefore, China's production costs would be cheaper than those in the United States.

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pls help asap if you can!!!!!!

Answers

Answer:

SSS, because a segment is congruent to itself.

2.11.2 Project task: the parallax problem

Answers

The parallax problem is a phenomenon that arises when measuring the distance to a celestial object by observing its apparent shift in position relative to background objects due to the motion of the observer.

The parallax effect is based on the principle of triangulation. By observing an object from two different positions, such as opposite sides of Earth's orbit around the Sun, astronomers can measure the change in its apparent position. The greater the shift observed, the closer the object is to Earth.

However, the parallax problem introduces challenges in accurate measurement. Firstly, the shift in position is extremely small, especially for objects that are very far away. The angular shift can be as small as a fraction of an arcsecond, requiring precise instruments and careful measurements.

Secondly, atmospheric conditions, instrumental limitations, and other factors can introduce errors in the measurements. These errors need to be accounted for and minimized to obtain accurate distance calculations.

To overcome these challenges, astronomers employ advanced techniques and technologies. High-precision telescopes, adaptive optics, and sophisticated data analysis methods are used to improve measurement accuracy. Statistical analysis and error propagation techniques help estimate uncertainties associated with parallax measurements.

Despite the difficulties, the parallax method has been instrumental in determining the distances to many stars and has contributed to our understanding of the scale and structure of the universe. It provides a fundamental tool in astronomy and has paved the way for further investigations into the cosmos.

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how
to rearrange these to get an expression of the form ax^2 + bx + c
=0

Answers

To rearrange the expression to the form [tex]ax^2 + bx + c = 0[/tex], follow these three steps:

Step 1: Collect all the terms with [tex]x^2[/tex] on one side of the equation.

Step 2: Collect all the terms with x on the other side of the equation.

Step 3: Simplify the constant terms on both sides of the equation.

When solving a quadratic equation, it is often helpful to rearrange the expression into the standard form [tex]ax^2 + bx + c = 0[/tex]. This form allows us to easily identify the coefficients a, b, and c, which are essential in finding the solutions.

Step 1: To collect all the terms with x^2 on one side, move all the other terms to the opposite side of the equation using algebraic operations. For example, if there are terms like [tex]3x^2[/tex], 2x, and 5 on the left side of the equation, you would move the 2x and 5 to the right side. After this step, you should have only the terms with x^2 remaining on the left side.

Step 2: Collect all the terms with x on the other side of the equation. Similar to Step 1, move all the terms without x to the opposite side. This will leave you with only the terms containing x on the right side of the equation.

Step 3: Simplify the constant terms on both sides of the equation. Combine any like terms and simplify the expression as much as possible. This step ensures that you have the equation in its simplest form before proceeding with further calculations.

By following these three steps, you will rearrange the given expression into the standard form [tex]ax^2 + bx + c = 0[/tex], which will make it easier to solve the quadratic equation.

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Teresa y su prima Gaby planea salir de vacaciones a la playa por lo que fueron a comprar lentes de sol y sandalias por los lentes de sol y un par de sandalias Teresa pago $164 Gaby compro dos lentes de sol y un par de sandalias y pagó $249 cuál es el costo de los lentes de sol y cuánto de las sandalias​

Answers

El costo de los lentes de sol es de $85 y el costo de las sandalias es de $79.

Para determinar el costo de los lentes de sol y las sandalias, podemos plantear un sistema de ecuaciones basado en la información proporcionada. Sea "x" el costo de un par de lentes de sol y "y" el costo de un par de sandalias.

De acuerdo con los datos, tenemos la siguiente ecuación para Teresa:

x + y = 164.

Y para Gaby, tenemos:

2x + y = 249.

Podemos resolver este sistema de ecuaciones utilizando métodos de eliminación o sustitución. Aquí utilizaremos el método de sustitución para despejar "x".

De la primera ecuación, podemos despejar "y" en términos de "x":

y = 164 - x.

Sustituyendo este valor de "y" en la segunda ecuación, obtenemos:

2x + (164 - x) = 249.

Simplificando la ecuación, tenemos:

2x + 164 - x = 249.

x + 164 = 249.

x = 249 - 164.

x = 85.

Ahora, podemos sustituir el valor de "x" en la primera ecuación para encontrar el valor de "y":

85 + y = 164.

y = 164 - 85.

y = 79.

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A wheel of radius 30.0 cm is rotating at a rate of 3.50 revolutions every 0.0710 s. Through what angle does the wheel rotate in 1.00 s? rad A wheel of radius 30.0 cm is rotating at a rate of 3.50 revolutions every 0.0710 s. What is the linear speed of a point on the wheel's rim? cm/s A wheel of radius 30.0 cm is rotating at a rate of 3.50 revolutions every 0.0710 s. What is the wheel's frequency of rotation? Hz

Answers

The angle of rotation, linear speed and frequency are 309.76, 92.93 and 49.30 respectively.

Given the parameters:

Radius of the wheel (r) = 30.0 cmRevolutions per time interval (n) = 3.50 revolutionsTime interval (t) = 0.0710 s

Number of revolutions per second= n/t = 3.50/0.0710 = 49.30

A.)

Angle of rotation = 2π*number of revs per second

Angle of rotation= 309.76 radian

Hence, angle of rotation is 309.76 radian

B.)

Linear speed = 2πr*revs per second

Linear speed = 2π*0.3*49.30 = 92.93m/s

Hence, Linear speed = 92.93 m/s

C.)

Frequency of rotation = number of revolutions per second

Frequency of rotation= 49.30

Hence, frequency is 49.30

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The wheel's frequency of rotation is 49.3 Hz.

The wheel rotates through an angle of 21.99 radians in 1.00 s.

Angular displacement = Angular velocity * Time

= (3.50 revolutions / 0.0710 s) * 2 * pi rad

= 21.99 rad

Convert the rate of rotation from revolutions per second to radians per second.

(3.50 revolutions / 0.0710 s) * 2 * pi rad = 21.99 rad/s

Multiply the angular velocity by the time to find the angular displacement.

21.99 rad/s * 1.00 s = 21.99 rad

What is the linear speed of a point on the wheel's rim?

The linear speed of a point on the wheel's rim is 659.7 cm/s.

Linear speed = Angular velocity * radius

= (3.50 revolutions / 0.0710 s) * 2 * pi rad * 30.0 cm

= 659.7 cm/s

Convert the rate of rotation from revolutions per second to radians per second.

(3.50 revolutions / 0.0710 s) * 2 * pi rad = 21.99 rad/s

Multiply the angular velocity by the radius to find the linear speed.

21.99 rad/s * 30.0 cm = 659.7 cm/s

The wheel's frequency of rotation is 49.3 Hz.

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Suppose A,B,C are events such that A∩ C=B∩ Cˉ. Show that ∣P[A]−P[B]∣≤P[C]

Answers

It has been proved that if A ∩ C = B ∩ C', then |P(A) - P(B)| ≤ P(C).

To show that |P(A) - P(B)| ≤ P(C) using the definition of conditional probability, we can follow these steps:

Firstly, we can write P(A) = P(A ∩ C) + P(A ∩ C') by the law of total probability.Secondly, we can write P(B) = P(B ∩ C) + P(B ∩ C') by the law of total probability.We know that A ∩ C = B ∩ C' which implies A ∩ C' = B ∩ C. Therefore, P(A) = P(A ∩ C) + P(A ∩ C') = P(B ∩ C) + P(B ∩ C') = P(B).Let's now show that P(A ∩ C) ≤ P(C). Since A ∩ C ⊆ C, we have P(A ∩ C) ≤ P(C) by the monotonicity of probability (that is, if A ⊆ B, then P(A) ≤ P(B)).Also, P(A) = P(B) implies P(A) - P(B) = 0. Therefore, |P(A) - P(B)| = 0 ≤ P(C).Hence, we can conclude that |P(A) - P(B)| ≤ P(C).

Therefore, it has been proved that if A ∩ C = B ∩ C', then |P(A) - P(B)| ≤ P(C).

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Use the formula for continuous compounding to compute the balance in the account after 1, 5, and 20 years. also find the apy for the account.
a $1000 deposit in an account with an apr of 3.75%
the balance in the account after 1 year is approximately $
(round to the nearest cent as needed.)
>
s

Answers

The balance in the account after 1 year is approximately $1037.05, after 5 years is approximately $1191.82, and after 20 years is approximately $2213.84 and the Annual Percentage Yield (APY) for the account is approximately 3.87%.

To compute the balance in the account after a certain time period using the formula for continuous compounding, we can use the following formula:

A = P * e^(rt)

Where:

A = Balance in the account

P = Principal amount (initial deposit)

e = Euler's number (approximately 2.71828)

r = Annual percentage rate (APR) as a decimal

t = Time period in years

As per data:

P = $1000, r = 3.75% (or 0.0375 as a decimal)

To calculate the balance after 1 year, we substitute the values into the formula:

A = 1000 * e^(0.0375 * 1)

To calculate the balance after 5 years, we substitute the values into the formula:

A = 1000 * e^(0.0375 * 5)

To calculate the balance after 20 years, we substitute the values into the formula:

A = 1000 * e^(0.0375 * 20)

Now, let's calculate the balances:

After 1 year:

A ≈ $1000 * e^(0.0375 * 1)

  = $1000 * e^0.0375

  ≈ $1037.05 (rounded to the nearest cent)

After 5 years:

A ≈ $1000 * e^(0.0375 * 5)

  = $1000 * e^0.1875

  ≈ $1191.82 (rounded to the nearest cent)

After 20 years:

A ≈ $1000 * e^(0.0375 * 20)

   = $1000 * e^0.75

   ≈ $2213.84 (rounded to the nearest cent)

To find the Annual Percentage Yield (APY) for the account, we can use the formula:

APY = (e^(r) - 1) * 100%

Where r is the APR as a decimal.

Substituting the value for r into the formula: APY = (e^(0.0375) - 1) * 100% Calculating the APY:

APY ≈ (e^0.0375 - 1) * 100%

       ≈ (1.0387 - 1) * 100%

       ≈ 3.87% (rounded to the nearest hundredth)

Therefore, the after one year, the balance is roughly $1037.05, after five years, roughly $1191.82, and after twenty years, roughly $2213.84. The account's annual percentage yield (APY) is roughly 3.87%.

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