someone please answer this

The numerical value of the expression 3a - 5b when a = -3 and b = -2 is 1.

Given the expression in the question;

3a - 5b

To determine the value of the expression, replace a with -3 and b with -2 for all occurrence of a and b in the expression.

3a - 5b

Plug in a = -3

3( -3 ) - 5b

Plug in b = -2

3( -3 ) - 5( -2 )

-9 -+ 10

10 - 9

Subtract 9 from 10

1

Therefore, the value of the expression is 1.

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3rd image is translations are rigid transformations that do not change the orientation of the original image.

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

A translation is a movement of the graph either horizontally parallel to the -axis or vertically parallel to the -axis.

3rd image is translations are rigid transformations that do not change the orientation of the original image.

2 and 4 are rotations and 5 is a dilation.

Hence, 3rd image is translations are rigid transformations that do not change the orientation of the original image.

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So, the two balls are located on the same plane, the x-y plane, with the baseball at <3,5,0>m and the tennis ball at <-3,-1,0>m, with the vector pointing from baseball to the tennis ball is <-6,-6,0>m.

The position vector of the baseball is <3,5,0>m. The position vector of the tennis ball is <-3,-1,0>m.

The position vector of the tennis ball relative to the baseball is the vector pointing from the baseball to the tennis ball and it is calculated by subtracting the position vector of the baseball from the position vector of the tennis ball: <-3,-1,0>m - <3,5,0>m = <-6,-6,0>m

So the two balls are located on the same plane, the x-y plane, with the baseball at <3,5,0>m and the tennis ball at <-3,-1,0>m, with the vector pointing from baseball to the tennis ball is <-6,-6,0>m.

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The evaluation of the velocity function, v(t) = cos((π/6)·t) for the interval 0 ≤ t ≤ 12, th obtain the position and acceleration is as follows;

(a) The particle is moving to the left when 3 < t < 9

(b) The total distance is; [tex]\int\limits^6_0 {cos(\frac{\pi}{6}\cdot t) } \, dt[/tex]

(c) a(t) ≈ -0.453

(d) x(4) ≈ -0.346

Acceleration is the rate at which the velocity of the object changes.

The function for the velocity of the particle is presented as follows;

v(t) = cos((π/6)·t)

The position of the particle at time, t = 0 is x = -2

(a) When the particle is moving to the left, the velocity is negative

The value of cos(θ) is negative for π/2 < θ < 1.5·π

The range of values of θ = ((π/6)·t), for 0 ≤ t ≤ 2, are;

((π/6) × 0) ≤ θ ≤ ((π/6) × 12), from which we get;

0 ≤ θ ≤ (2·π)

When π/2 = (π/6)·t, we get;

t = (π/2)/(π/6) = 3

When 1.5·π = (π/6)·t, we get;

t = (1.5·π)/(π/6) = 9

The particle is moving to the left between time t = 3 and time t = 9, which can be expressed as follows;

(b) The total distance traveled by the particle from time t = 0 to time t  = 6 is presented using the definite integral as follows;

(c) Acceleration, a, is the rate of change of the velocity, therefore, the acceleration is the derivative of the velocity function, which can be obtained as follows;

[tex]a(t) =\frac{d}{dt} {cos(\frac{\pi}{6}\cdot t) } = -\frac{\pi}{6} \cdot sin(\frac{\pi}{6} \cdot t)[/tex]

[tex]a(t) = -\frac{\pi}{6} \cdot sin(\frac{\pi}{6} \cdot t)[/tex]

At time t = 4, we get;

[tex]a(4) = -\frac{\pi}{6} \cdot sin(\frac{\pi}{6} \times 4) = -\frac{\sqrt{3} \cdot \pi}{12}[/tex]

(d) The position of the particle at time t = 4, can be obtained by adding the the position of the particle at time t = 4 to the total distance covered between time t = 0 and time t = 4 as follows;

[tex]\int\limits^4_0 {cos(\frac{\pi}{6}\cdot t) } \, dt =[ \frac{6}{\pi}\cdot {sin(\frac{\pi}{6}\cdot t) }]^4_0[/tex]

[tex][ \frac{6}{\pi}\cdot {sin(\frac{\pi}{6}\cdot t) }]^4_0 = [ \frac{6}{\pi}\cdot {sin(\frac{\pi}{6}\times 4) }] - [ \frac{6}{\pi}\cdot {sin(\frac{\pi}{6}\times 0) }]=\frac{3\cdot \sqrt{3} }{\pi}[/tex]

[tex]\int\limits^4_0 {cos(\frac{\pi}{6}\cdot t) } \, dt = \frac{3\cdot \sqrt{3} }{\pi}[/tex]

The position of the particle at t = 4 is therefore;

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By equation for the graph y = 2 cos (x − π 12)  this  we get  

x            f (x)

π /2        2

π            0

3π / 2     -2

2π           0

5π / 2      2.

y = 2 cos (x − π 12)

Find the parameters necessary to calculate the amplitude, period, phase shift, and vertical shift using the formula a cos (b x c ) + d.

a = 2

b= 1

c = π /2

d = 0

locate | a |'s amplitude.

Dimension: 2

Calculate the duration of 2 cos (x 2 ).

2 | b | can be used to determine the period of the function.

2π / |b|

In the formula for the period, swap out b for 1.

2π  /  |1 |

What separates a number from zero is its absolute value. 0 to 1 are separated by a distance of 1 and 2 units.

1

Subtract 2 from 1 to get 2.

Use the cb formula to get the phase shift.

From c b, one may get the phase shift of the function.

c b: Phase Shift

The equation for phase shift should have the values of c and b changed.

Changing phases: 2 1

Take 2 and divide it by 1.

Shift in Phase: 2

Name the trigonometric function's attributes.

Two-second period with amplitude two

Phase Change: 2 (rightward by 2).

Vertical Shift: null

To graph, choose a few points.

To continue, tap the screen.

x          f ( x )

π /2         2

π             0

3π /2      − 2

2 π           0

5π / 2       2

Amplitude, period, vertical shift, phase shift, and points can all be used to graph the trig function.

Dimension: 2

Two (2) years

Phase Change: 2 (rightward by 2).

Vertical Shift: null

x            f (x)

π /2        2

π            0

3π / 2     -2

2π           0

5π / 2      2.

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Answer:

70

Step-by-step explanation:

The time that should take her to run each mile is approx 11.5 minutes.

Given that,

She runs 5 miles in 57 and a half minutes.

Based on the above information,

The time that should be taken by her is

= 57.5 ÷ 5 miles

= 11.5 minutes.

Therefore we can conclude that the time that should take her to run each mile is approx 11.5 minutes......

The interest rate that Mr. Mogi borrowed the money, given the amount borrowed and the amount repaid, is 17. 8%

To find the interest rate that Mr. Mogi borrowed the money at, first find the amount he paid per year:

= Total payment / Number of years

= 20, 000 / 10

= $ 2, 000 per year

You can then use the RATE function on Spreadsheet to find the interest:

NPER = 10 years

PMT = $ 2, 000

PV = 9, 000

FV = $ 20, 000

The interest rate would be 17. 8%

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Answer:

Step-by-step explanation:

A. (AUBUC)' = {}

B. (A UBUC)' is the empty set.

Both options A and B express that the complement of the union of the sets A, B, and C is the empty set. The complement of a set is the set of all elements that are not in that set. The union of sets is the set of all elements that are in at least one of the sets.

When taking the union of A, B, and C all the elements in U are included, so there is no element that is not in the set, making the complement of the union of A,B,C is an empty set.

The coldest temperature recorded in Vostok station in Fahrenheit is -89.2°F

An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario.

It is important to note that an equation is the mathematical statement which can be made up of two expressions which are connected by an equal sign.

The coldest temperature recorded in Vostok station in Fahrenheit is:

= -22.3 × 4

= -89.2°F

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Every month of the year has

The length of missing side is 39.

Pythagoras theorem is a mathematical statement that states that in a right triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the two other sides (the legs).

It can be expressed as a2 + b2 = c2, where a and b are the two legs of the triangle and c is the hypotenuse. The theorem is named after the ancient Greek mathematician Pythagoras, who is believed to have discovered it.

Pythagoras theorem is an important concept in geometry, and is used to calculate the length of the hypotenuse in a right triangle when the lengths of the other two sides are known.

It can also be used to determine the lengths of the other two sides when the length of the hypotenuse is known. In addition, it can be used to find the angles of a right triangle when the lengths of the sides are known.

Pythagoras theorem has many applications in everyday life. For example, it can be used to calculate the height of a building, or the distance between two points.

It can also be used in carpentry, engineering, and architecture to measure distances and angles. In addition, it can be used in trigonometry to find the values of trigonometric functions.

Finally, it can be used in navigation to calculate distances and angles.

Let c be the length of missing side,

According to Pythagoras theorem,

a² + b² = c²

36² + 15² = c²

c = √1521

c = 39

So, the length of missing side is 39.

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Answer:

Step-by-step explanation:

8 - (-5) - 4(-7)

8- (-5) - (-28)

8 + 5 + 28

13 + 28

41

Answer:

8 - (-5) - 4(-7) = 41

Step-by-step explanation:

Given problem,

→ 8 - (-5) - 4(-7)

Let's solve the problem,

→ 8 - (-5) - 4(-7)

→ 8 + 5 - (4 × -7)

→ 13 - (-28)

→ 13 + 28

→ 41 => final answer

Hence, the answer is 41.

The length of the side should be 45 inches.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

In triangle XYZ,

As lengths of two sides XYZ are 23 and 48 inches

The range of the third side can be computed when we already know the two sides of the triangle.

If subtracting 48 - 23, the 3rd side would have to be more than 25. Else 3rd side can not be made as two smaller legs will not meet.

and If adding 48 + 23 , the 3rd side would have to be less than 61. Else 3rd side will reach further than the other two sides could reach.

Therefore, the length of side XZ should be greater than 25 and lesser than 61.

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When given two points and asked to find the equation of the line in slope-intercept form, the correct steps, the correct order is 2 , 1 , 4 , 3.

A straight line is an endless one-dimensional figure that has no width. It is a combination of endless points joined both sides of a point and has no curve.

here, we have,

Given that,

given two points and asked to find the equation of the line in slope-intercept form.

Find that,

what are the correct steps? Place a number next to the step to put them in order.

Explanation:

to find the equation of the line in slope intercept form form given two points.

step 1 :

find the slope.

step 2

write equation in point slope form

step 3.

pick a point form the given points , substitue it into the point slope form

step 4.

write the equation in slope intercept form by simplifying

Final Answer.

Hence , the correct order is 2 , 1 , 4 , 3.

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Time cross-sectional data is data collected from a sample of subjects at a single point in time.

This data can be used to measure the characteristics of a population at a given point in time. For example, a population can be surveyed to measure the percentage of people who own a car, the median age of the population, or the percentage of people who have a college education.

Time series data is data collected from the same sample of subjects over a period of time. This data can be used to measure the changes in a population over time. For example, a population can be surveyed to measure the percentage of people who own a car over a five-year period, the median age of the population over the same five-year period, or the percentage of people who have a college education over the same five-year period.

Time controlled data is data collected from the same sample of subjects at different points in time but with a controlled variable. For example, a survey can be conducted to measure the percentage of people who own a car at the start of the school year, the median age of the population at the start of the school year, and the percentage of people who have a college education at the start of the school year in different cities.

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A one-sample z-test for a population proportion requires that n po > 10 and n(1-Po) > 10 for both the sample and population proportions, Po. Additionally, each sample proportion must be less than or equal to 0.5, the sample size must be more than 10 times the population size, and the population size must be more than 10 times the sample size.

1. Calculate the sample size, n, needed for the test.

2. Check that npo > 10 and n(1 - Po) > 10 for both the sample and population proportions, Po.

3. Check that each sample proportion is less than or equal to 0.5.

4. Check that the sample size is more than 10 times the population size.

5. Check that the population size is more than 10 times the sample size.

6. Check that the population distribution is approximately normal.

A one-sample z-test for a population proportion is used to evaluate the difference between a sample proportion and a population proportion. Before conducting the test, it is important to check for independence, which is done by ensuring that certain conditions are met. First, npo > 10 and n(1-Po) > 10 must be true for both the sample and population proportions, Po. Additionally, each sample proportion must be less than or equal to 0.5, the sample size must be more than 10 times the population size, and the population size must be more than 10 times the sample size. Lastly, the population distribution must be approximately normal. These conditions must be met in order for the test to be valid and reliable. If any of these conditions are not met, the test results may be inaccurate.

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The model's graph, y = 10770/x2 - 0.37, 5 x 100 demonstrates that the resistance will be about halved when the wire's diameter is doubled. This is brought on by the inverse square relationship between wire resistance and diameter.

1. Graph the model y = 10770/x² - 0.37, 5 ≤ x ≤ 100 using a graphing utility.

2. Find the resistance when x is 5.

y = 10770/5² - 0.37 = 2104.1 ohms

3. Find the resistance when x is 10.

y = 10770/10² - 0.37 = 526 ohms

4. Divide 2104.1 by 526 to find the factor by which the resistance is changed when the diameter of the wire is doubled.

2104.1/526 = 4

The graph of the model y = 10770/x² - 0.37, 5 ≤ x ≤ 100 shows that the resistance of the wire decreases as the diameter of the wire increases. Doubling the diameter of the wire will roughly halve the resistance, as can be seen by comparing the resistance when x is 5 (2104.1 ohms) to the resistance when x is 10 (526 ohms). Thus, the resistance is changed by a factor of 4 when the diameter of the wire is doubled.

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Answer: In order to solve for x, we will have to use the logarithmic properties to isolate x.

f(x) = 3 - 4 In (x-2)

To solve for x, we will have to get x alone on one side of the equation by using the logarithmic property that logb(a^c) = c*logb(a).

4 In (x-2) = 3

In (x-2) = 3/4

To find x, we will raise e to the power of both sides

x-2 = e^(3/4)

x = e^(3/4) + 2

So the solution of x is e^(3/4) + 2

It's important to notice that the natural logarithm (ln) and log base e (In) are same and the solution is valid for both.

Step-by-step explanation:

The sum of expression 1/2 + 2/(1/2) is obtained to be option B: 4.

What is sum?

The outcome of adding two or more numbers or phrases is known as the sum in mathematics. The sum is a method of bringing things together as a result. To put it another way, adding two or more numbers together results in a new result or total.

The fractional expression is - 1/2 + 2/(1/2)

Apply the fraction reciprocal rule -

If there is a fraction in denominator then it is reciprocated and multiplied.

= 1/2 + 2/(1/2)

= 1/2 + 2(2/1)

= 1/2 + 4

Now, take the LCM and multiply it with the numerators -

= 1/2 + 4

Find the sum of the numbers -

= (1 + 8)/2

= 9/2

= 4.5

When estimated and rounded the number is equivalent to 4.

Therefore, the fractional expression results in 4.

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Estimate the sum. Round the number.

1/2 + 2/(1/2)

The sum is approximately -

A: 0

B: 4

C: -4

D: 8

The limit does not exist because the function is not defined at (x,y) = (0,0)You can see this by plugging in (x,y) = (0,0) into the function, you get 3(0^2) * 0 / (0^2 + 0^2) = 0 / 0 which is an indeterminate form.

In Mathematics, a limit is defined as a value that a function approaches the output for the given input values. Calculus and mathematical depend on limits, which are also used to determine integrals, derivative, and continuity.

There are each limits (left- and proper limits), infinite limits, and limitations at infinity in addition to regular, two-sided limits.

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The true statement is " A and B must point in the same direction."

Two vectors A and B are added together to form a vector C. The relationship between the magnitudes of the vectors is given by A + B = C. Which one of the following statements concerning these vectors is true?

According to the question

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The area of the figure given, which is composed of a rectangle and two semicircles, is 154. 27 units ²

First, find the area of the rectangle in the composite shape which is :

= Length x Width

= 13 x 8

= 104 units ²

The area of a semi - circle is:

= ( π x r ² ) / 2

Seeing as there are two semi - circles, the area is:

= π x r ²  

= π x 4 ²

= 50. 27 units  ²

The area of the composite shape is therefore:

= 50. 27 + 104

= 154. 27 units ²

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The total number of animals in the farm is given by 200

A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate the percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word percent means per 100. It is represented by the symbol “%”

Given here: The number of cows is 30 and they form 15% of the total animals on the farm.

Let the number of animals in the form be x then

15% of x=30

x=30×100/15

x=200

Hence, The total number of animals in the farm is given by 200

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The statement a(x-b)-c = ax-(ab+c) is true because it follows the rules of algebraic operations and the distributive property.

On the left side of the equation, we have a(x-b)-c.

Here, a is a constant and it is being multiplied by (x-b). According to the distributive property, we can rewrite this as:

ax-ab-c.

On the right side of the equation, we have ax-(ab+c)

Here, we have a constant a being multiplied by x and then we have another constant ab and c being subtracted, which we can also rewrite as:

ax - ab -c

As you can see, both sides of the equation are equivalent and the statement is true.

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Emily Janson should receive the scholarship offer because she has the higher batting average over the combined junior and senior years.

The batting average of a player is calculated by dividing the number of hits they have by the total number of at-bats. This can be expressed as a formula: Batting Average = H/AB.

For Allison Fealey, her junior year batting average can be calculated by dividing the number of hits (15) by the total number of at-bats (40), which is 0.375. Emily Janson’s junior year batting average can be calculated by dividing the number of hits (74) by the total number of at-bats (204), which is 0.363

For Allison Fealey, her senior year batting average can be calculated by dividing the number of hits (79) by the total number of at-bats (254), which is 0.310. Emily Janson’s senior year batting average can be calculated by dividing the number of hits (35) by the total number of at-bats (120), which is 0.292.

When the data from the junior and senior years were combined and aggregated, Allison Fealey’s combined two-year batting average can be calculated by dividing the number of hits (94) by the total number of at-bats (294), which is 0.320. Emily Janson’s combined two-year batting average can be calculated by dividing the number of hits (109) by the total number of at-bats (324), which is 0.336.

Based on this analysis, Emily Janson should receive the scholarship offer because she has the higher batting average over the combined junior and senior years.

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Hey there!

Is this all one complex equation or it this representing multiple? Reason I ask is it's a little hard to understand above.

Answer:12 fives 2 10's

Step-by-step explanation:

The given tax rates are as follows: Drew’s tax due is 4,519.50 and his effective tax rate is 11.6%. Option A is correct.

You will determine your total taxable income based on your tax slab by subtracting all eligible deductions from the gross taxable income. Senior citizens pay a different slab rate.

An income tax system's tax base is referred to as taxable income. That is, the amount of income that was subject to taxation by the government. In most cases, some or all of the income is included, and expenses and other deductions reduce it.

                      Single Taxpayers: Income Brackets

Tax Income                  Rate Bracket             Tax Owed              

0 to 9,525                       10%                     10% of taxable income

9,526 to38,700               12%        $952.50 plus 12% of  38,700 the excess                                                                                        over

$38,701 to 82,500          22 %                $4,453.50 plus 22% of 38,701                                                                                     the excess over

82,501 to 157,500          24%      $14,089.50 plus 24% of the excess over

                                                                                                         157,500

157,501 to  200,000       32%      $ 32089.50  plus 32% of the excess over

200,001 to   500,000     35%      45,689.50 plus 35% of excess over

500,000 >                        37%      $150,689.50 plus 37% of 500,000 of the    

                                                             excess over

The taxable income lies in the tax rate range of   $38,701 to 82,500.

Therefore the tax would be  :

                                  $4,453.50 + 22% of (39,000-38,701=299)

                                           = $4,453.50 + 22% of 299

                                                  =  $4,453.50 + 65.78

                                                  = $ 4519.28

The taxable income lies in the tax rate range of  $38,701 to 82,500. Due and effective tax rate is $4,453.50 plus 22% of 38,701 the excess over.

The calculated tax is $ 4519.28

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Answer:

A line that is perpendicular to the line y=-2x+1 will have a slope that is the negative reciprocal of -2, which is 1/2.

The equation of a line in point-slope form is:

y - y1 = m(x - x1)

Where m is the slope of the line, and (x1, y1) is a point on the line.

Given that the point (-4,3) lies on the line, we can substitute those values for x1 and y1:

y - 3 = 1/2(x + 4)

Which is the equation of a line that is perpendicular to y=-2x+1 that passes through the point (-4,3).

Alternatively, you can also write the equation of a line in slope-intercept form y = mx + b,

The slope of a line perpendicular to y=-2x+1 is 1/2, therefore m = 1/2

We can substitute the point (-4,3) in the equation y = mx + b,

3 = (1/2)(-4) + b

b = 3.5

Therefore the equation of the line is y = 1/2x + 3.5

After measuring a set of individuals, a researcher finds that Bob's score is three times greater than Jane's score. These measurements must come from a ratio scale

A ratio scale is a type of measurement scale that allows for the comparison of two or more values by using division. After measuring a set of individuals, a researcher finds that Bob's score is three times greater than Jane's score.

In this case, the researcher is comparing Bob's score to Jane's score, and the comparison involves division (Bob's score is three times greater than Jane's score).

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