The equation representing the situation is 20(3 cups) - p(2 cups) = 36 cups, where p represents the number of pots knocked over.
The initial amount of soil in the pots is given by 20 pots multiplied by 3 cups per pot, which gives 20(3 cups). The number of pots knocked over is represented by p, and each knocked-over pot loses 2 cups of soil.
Therefore, the total soil lost due to knocked-over pots is p(2 cups). Subtracting this from the initial amount of soil, we get 20(3 cups) - p(2 cups). The result should be equal to the remaining soil, which is 36 cups. Hence, the equation representing this situation is 20(3 cups) - p(2 cups) = 36 cups. This equation relates the number of pots knocked over (p) to the remaining soil (36 cups).
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A pyramid has 7 faces , including the base. How many edges does it have?
Answer:
12 edges
Step-by-step explanation:
A pyramid with 7 faces is a hexagonal pyramid. It has 12 edges
two numbers are respectively 20% and 50% more than the third number. what % is the first number of the second?
The first number 20% greater than the third number.
The second number is 50% MORE than the third number.
Let the third number be 100.
According to the question,
First number =120
Second number =150
Percentage of the first of the second number
120/150 x 100 = 80%
The correct answer is 80%
Find the radius of convergence, R, of the series.[infinity]∑n=2(x+4)n4nln(n)Also, find the interval, I, of convergence of this series. (Enter your answer using interval notation.)
The series converges for all values of x within the interval (-5, -3).
To find the radius of convergence, we can make use of the ratio test. According to the ratio test, if we have a series ∑aₙ, and the limit of the absolute value of the ratio of consecutive terms aₙ₊₁/aₙ, as n approaches infinity, exists and is equal to L, then the series converges absolutely if L < 1 and diverges if L > 1.
For the series to converge, we need |x+4| < 1, which means that the absolute value of (x+4) should be less than 1. Thus, we can conclude that the radius of convergence, R, is 1.
To find the interval of convergence, I, we need to determine the values of x for which the series converges. Since the series converges when |x+4| < 1, we can set up the following inequality:
|x+4| < 1
To solve this inequality, we can consider two cases:
When x+4 > 0:
In this case, the inequality becomes:
x+4 < 1
x < -3
When x+4 < 0:
In this case, we need to consider the absolute value, so the inequality becomes:
-(x+4) < 1
x > -5
Combining both cases, we have -5 < x < -3 as the interval of convergence, I.
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1. You want to plant a flower garden in your yard so that you can make a beautiful bouquet to put on the alter at church for Easter Sunday services. There are two types of flowers that you are going to be planting. You will be planting some tulips and daffodils. At the store tulips come in packs of 6 and daffodils come in packs of 9.
a.What is the least amount of packs of daffodils and tulips you would need to buy to have the same amount of each?
b.How many should you have of each kind of flower?
2.Each pack of tulips costs $4.75 and each pack of daffodils cost $3.50. From the previous problem, you know how many packs of each you will need. The sales tax is 7.5%.
a.How much tax will you be paying for all the flowers, to the nearest cent?
b.How much total will you be paying for all flowers, to the nearest cent?
3.You remember that you have a discount coupon for $2.75 off your total purchase before tax.
a. How much did the flowers cost with the discount including tax (Round to the nearest penny)?
b.How much money did you save with the coupon including tax?
Answer:
1a. 3 packs of tulips, 2 packs of daffodils
1b. 18 flowers
2a. tax: $1.59
2b. total cost: $22.84
3a. with coupon cost: $19.89
3b. $2.95 savings
Step-by-step explanation:
You want the least number of flowers and the number of packs you must purchase to have the same number of tulips and daffodils when tulips come in a 6-pack for $4.75 and daffodils come in a 9-pack for $3.50. You also want the amount of tax at 7.5%, the with-tax cost after a $2.75 discount coupon, and the total savings (with tax) that the coupon gives.
1b. FlowersThe least common multiple of 6 and 9 is (6·9)/3 = 18. This is the number of flowers of each kind you will have.
You will have 18 of each kind of flower.
1a. PacksAt 6 per pack, you will need 18/6 = 3 packs of tulips.
At 9 per pack, you will need 18/9 = 2 packs of daffodils.
You need to buy 3 packs of tulips and 2 packs of daffodils.
2a. TaxThe tax on the purchase will be the product of the tax rate and the total amount of the purchase. That total amount is sum of the product of the number of packs and the cost per pack for each of the types of flowers.
tax = 7.5% × (3×$4.75 +2×$3.50) = $1.59
2b. TotalThe total cost of the flowers is ...
(3×$4.75 +2×$3.50) × (1 +0.075) = $22.84
3a. DiscountedWhen a discount coupon is applied, the total cost is ...
(3×$4.75 +2×$3.50 - $2.75) × (1 +0.075) = $19.89
3b. SavingsThe savings with the coupon is ...
$22.84 -19.89 = $2.95
__
Additional comment
You can figure the individual costs and add them up, or you can simply tell the calculator to do all that. We have elected to write the computations using a minimum number of calculator entries. In some cases, intermediate results are required for answering parts of the question.
In the least common multiple (LCM) calculation above, we have computed it as the product of the numbers, divided by their greatest common factor (3).
The "dot product" of lists {a, b} and {c, d} is ac +bd. It actually takes more keystrokes to write the sum of products using the DotP function.
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Find all solutions of the equation 2cosx−1=0.2cosx-1=0. The answer is A+BkπA+Bkπ and C+DkπC+Dkπwhere kk is any integer, 0
The solutions to the equation 2cos(x) - 1 = 0.2cos(x) - 1 = 0 are given by x = cos^(-1)(5/9) + 2kπ, where k is an integer.
To solve the equation 2cos(x) - 1 = 0.2cos(x) - 1 = 0, we can simplify it as follows:
2cos(x) - 1 = 0.2cos(x) - 1
Subtracting 0.2cos(x) from both sides:
2cos(x) - 0.2cos(x) = 1
Combining like terms:
1.8cos(x) = 1
Now, we isolate cos(x) by dividing both sides by 1.8:
cos(x) = 1/1.8
cos(x) = 5/9
To find the solutions, we need to consider the values of cos(x) that satisfy the equation. Since cos(x) can take any value between -1 and 1, we can find the corresponding angles by taking the inverse cosine (cos^(-1)) of 5/9:
x = cos^(-1)(5/9) + 2kπ
where k is any integer, and π represents pi.
Therefore, the solutions of the equation 2cos(x) - 1 = 0.2cos(x) - 1 = 0 are given by:
x = cos^(-1)(5/9) + 2kπ, where k is any integer.
Note that the solutions are in the form of A + Bkπ, where A and B are constants derived from cos^(-1)(5/9), and k is an integer.
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in a two-way analysis of variance, a researcher tests for the significance of: group of answer choices three main effects. one main effect and an interaction. two interactions. two main effects and an interaction.
In a two-way analysis of variance, a researcher tests for the significance of two main effects and an interaction.
What is two-way analysis of variance?A statistical test called two-way analysis of variance (ANOVA) compares the means of many groups using two independent variables (factors) and one dependent variable.
In a two-way analysis of variance (ANOVA), the researcher tests for the significance of two main effects and an interaction effect between two independent variables (factors) on a dependent variable. The main effects refer to the individual effect of each factor on the dependent variable, while the interaction effect refers to the combined effect of both factors on the dependent variable. Thus, the researcher aims to examine how each independent variable affects the dependent variable separately (main effects) and how their combination affects the dependent variable (interaction effect).
Therefore, in a two-way analysis of variance, a researcher tests for the significance of two main effects and an interaction.
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if a function f(x) with f(3)=15 is continuous at x=3, then f(x) is differentiable at x=3
The statement is not necessarily true. Continuity at a point does not guarantee differentiability at that point.
A function can be continuous but not differentiable at a certain point if it has a sharp corner or a vertical tangent at that point. However, if a function is differentiable at a point, it must also be continuous at that point.
This is because differentiability implies continuity, but continuity does not imply differentiability. Therefore, it is possible for a function to be continuous at x=3 and not differentiable at x=3.
Additional information, such as the existence and continuity of the derivative, is needed to determine if a function is differentiable at a given point.
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You launch a water balloon. The function h=-0.08t^2+1.6t+2 models the height h (in feet) of the water balloon after t seconds. After how many seconds does the water balloon hit the ground?
if the area of a right triangle is 9/16 sq. ft. and the height is 3/4 ft,write an equation that relates the area to the base,b, and the height. Solve the equation to detyermine the base.
The base of the right triangle is 3/2 ft.
The area of a right triangle is given by the formula:
Area = (base × height) / 2
We are given that the area of the triangle is 9/16 sq. ft. and the height is 3/4 ft. So, substituting these values in the above formula, we get:
9/16 = (base × 3/4) / 2
Multiplying both sides by 2, we get:
9/8 = base × 3/4
Dividing both sides by 3/4, we get:
9/8 ÷ 3/4 = base
Simplifying, we get:
9/8 × 4/3 = base
3/2 = base
Therefore, the base of the right triangle is 3/2 ft.
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find the volume of the solid region enclosed by the surface rho = 12 cos φ
The volume of the solid region enclosed by the surface ρ = 12 cos φ is 5π²/3.
How can we express the equation of the surface in Cartesian coordinates using the formulas?We can express the equation of the surface in Cartesian coordinates using the formulas:
x = ρ sin φ cos θ
y = ρ sin φ sin θ
z = ρ cos φ
Substituting ρ = 12 cos φ, we get:
x = 12 sin φ cos θ cos φ
y = 12 sin φ sin θ cos φ
z = 12 cos^2 φ
Using the limits of integration 0 ≤ φ ≤ π/2 and 0 ≤ θ ≤ 2π, we can set up the triple integral for the volume of the solid region:
V = ∫∫∫ dV
= ∫₀^(2π) ∫₀^(π/2) ∫₀^(12 cos φ) ρ^2 sin φ dρ dφ dθ
= ∫₀^(2π) ∫₀^(π/2) [ρ^3/3]₀^(12 cos φ) sin φ dφ dθ
= ∫₀^(2π) ∫₀^(π/2) 4(3 sin^4 φ - 6 sin^2 φ + 3) dφ dθ
= 2π ∫₀^(π/2) 4(3 sin^4 φ - 6 sin^2 φ + 3) dφ
= 2π [sin^5 φ - 4 sin^3 φ + 3φ]₀^(π/2)
= 2π [1 - 4/3 + 3π/2]
= 2π (5/6 + 3π)
= 5π²/3
Therefore, the volume of the solid region enclosed by the surface ρ = 12 cos φ is 5π²/3.
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The volume of the solid region enclosed by the surface ρ = 12 cos φ is approximately 36651.65.
To find the volume of the solid region enclosed by the surface ρ = 12 cos φ, we can use a triple integral in spherical coordinates.
The limits of integration for ρ are 0 and 12 cos φ. For θ, the limits are 0 and 2π, and for φ, the limits are 0 and π/2.
So, the integral for the volume is:
V = ∭(ρ^2 sin φ) dρ dφ dθ
Substituting ρ = 12 cos φ, we get:
V = ∫[0,2π] ∫[0,π/2] ∫[0,12 cos φ] (ρ^2 sin φ) dρ dφ dθ
= ∫[0,2π] ∫[0,π/2] ∫[0,12 cos φ] (12^2 cos^2 φ sin φ) dρ dφ dθ
= 12^3 ∫[0,2π] ∫[0,π/2] [sin φ/3] [12^3 sin φ/3] dφ dθ
= 12^5/3 ∫[0,2π] ∫[0,π/2] sin^2 φ dφ dθ
Using the trigonometric identity sin^2 φ = (1/2)(1 - cos 2φ), we get:
V = 12^5/3 ∫[0,2π] ∫[0,π/2] (1/2)(1 - cos 2φ) dφ dθ
= 12^5/6 ∫[0,2π] [φ - (1/2)sin 2φ] dφ
= 12^5/6 [π^2/2]
≈ 36651.65
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-5 3/4 -3 1/2 CAN YOU SOLVE THIS ASAP
order the rational numbers -10,2,-0.5, and 5/16 from least to greatest
Answer: -10 < -0.5 < 0.3125 < 2
What is the probability of randomly selecting a quarter from a bag that has 5 dimes, 6 quarters, 2 nickels, and 3 pennies?
3/8
1/8
5/16
3/16
Answer:
3/8
Step-by-step explanation:
there are 5 + 6 + 2 + 3 = 16 coins.
there are 6 quarters.
probability, p, of selecting a quarter = p(quarter) = 6/16 = 3/8
if s= a b c with p(a)=6p(b)=8p(c) find p(a)
The given information states that s = abc, and p(a) = 6p(b) = 8p(c). To find p(a), we need to know the value of one of the other c, so let's choose p(c) = k. Then, we have p(b) = (3/4)k and p(a) = (1/2)k.
Substituting these values into the expression for s, we get s = abc = (1/2)k * (3/4)k * k = (3/8)k^3. To solve for k, we can use the fact that the probabilities must add up to 1: p(a) + p(b) + p(c) = 1. Substituting in the expressions for p(a), p(b), and p(c), we get (1/2)k + (3/4)k + k = 1, or (5/4)k = 1/2. Solving for k, we get k = 2/5. Finally, substituting this value of k back into the expression for p(a), we get p(a) = (1/2)k = (1/2)(2/5) = 1/5. Therefore, p(a) = 1/5.
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shocks occur to a system according to a poisson process of intensity lambda. each shocks causes some damage. what type of process could model the damage up to time t?
A suitable process to model the accumulated damage up to time t, given that shocks occur according to a Poisson process of intensity lambda, is the Compound Poisson Process.
In a Compound Poisson Process, the number of shocks occurring up to time t follows a Poisson distribution with parameter lambda*t, while the magnitude of each shock's damage is determined by an independent and identically distributed (i.i.d.) random variable. The total damage up to time t is the sum of the damages caused by each individual shock. This process combines the random arrival of shocks from the Poisson process and the variability in damage caused by each shock. By modeling the damage accumulation in this way, we can capture both the randomness in the arrival of shocks and the uncertainty in the amount of damage caused by each shock.
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Math 1/1+3= Omg hurry please help
Answer:
The answer is 4
Step-by-step explanation:
If sin(x)=2/9, x is in quadrant 1, then find (without finding x). Please show all work.sin(2x)cos(2x)tan(2x)
Using the double angle formulas for sine and cosine, we can find sin(2x) and cos(2x) as follows:
sin(2x) = 2sin(x)cos(x) = 2(2/9)(√(1 - (2/9)^2)) = 4√65/81
cos(2x) = cos^2(x) - sin^2(x) = (1 - sin^2(x)) - sin^2(x) = 1 - 2sin^2(x) = 1 - 2(2/9)^2 = 77/81
Finally, we can use the formula for tangent in terms of sine and cosine to find tan(2x):
tan(2x) = sin(2x)/cos(2x) = (4√65/81)/(77/81) = (4/77)√65
Therefore, sin(2x)cos(2x)tan(2x) = (4√65/81)(77/81)(4/77)√65 = 16/81.
In summary, sin(2x) = 4√65/81, cos(2x) = 77/81, and tan(2x) = (4/77)√65. So, sin(2x)cos(2x)tan(2x) = 16/81.
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the measure of one of the interior angles of a regular polygon is 157.5 degrees. how many sides are on the polygon?
The polygon has 16 sides.
The Measure of the Interior Angle of a Regular Polygon:In geometry, if all the sides of a polygon have the same length, and the angles of the polygon all have the same measure, then we call the polygon a regular polygon. The interior angles of a regular n-sided polygon will each have a measure of [tex]\frac{180n-360}{n}[/tex] . We can use this formula in many different applications involving regular polygons.
We want to know how many sides the described polygon has, so let's it has number of sides be n. We are given that each angle of the regular polygon has a measure of 157.5 degree. Therefore, the formula for the interior angles of a polygon gives that:
[tex]\frac{180n-360}{n}[/tex] will be equal to 157.5 degree
=> [tex]\frac{180n-360}{n}[/tex] = 157.5°
We will now solve this equation for n :
To find the number of sides of our polygon.
[tex]\frac{180n-360}{n}[/tex] = 157.5°
Multiply both sides by n.
180n - 360 = 157.5n
Subtract 180n from both sides of the equation.
- 360 = -22.5n
Divide both sides by -22.5
16 = n
We get that if each angle of a regular polygon is 157.5°, then the polygon has 16 sides.
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Write the given system of equations as a matrix equation and solve by using inverses. 7x1 + 3X2= k1 -2x1-X2= k2 a. What are X, and x2 when k, = - 4 and k, = 0? X1 X2=
The determinant of matrix A matrix equation when k1 = -4 and k2 = 0, we have x1 = -12/23 and x2 = 4/23.
The given system of equations can be written as a matrix equation as follows:
A * X = K
where
A = [[7, 3], [-2, -1]]
X = [x1, x2]
K = [k1, k2]
To solve for X, we can use the inverse of matrix A as follows:
X = A^-1 * K
To find the inverse of matrix A, we can use the formula:
A^-1 = (1/det(A)) * [[-1, -3], [2, 7]]
where det(A) is the determinant of matrix A.
Plugging in the values of A^-1 and K, we get:
X = (1/det(A)) * [[-1, -3], [2, 7]] * [-4, 0]
X = [-12/23, 4/23]
Therefore, when k1 = -4 and k2 = 0, we have x1 = -12/23 and x2 = 4/23.
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what does the highest point on a bell-shaped curve represent?
The highest point on a bell-shaped curve represents the peak or maximum value of the distribution. This point is known as the mode of the distribution.
In a bell-shaped curve, also known as a normal distribution or Gaussian distribution, the data is symmetrically distributed around the mean. The curve is characterized by a central peak, and the highest point on this peak corresponds to the mode.
The mode represents the most frequently occurring value or the value that has the highest frequency in the dataset. It is the point of highest density in the distribution.
The bell-shaped curve is often used to model naturally occurring phenomena and is widely applied in statistics and probability theory. The mode provides information about the most common or typical value in the dataset and is useful for understanding the central tendency of the distribution.
While the mean and median also have significance in a normal distribution, the highest point on the bell-shaped curve specifically represents the mode, indicating the value with the highest occurrence in the dataset.
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Match the expression on the left with the correct simplified expression on the right.
(x+4)²
(x+4)(x-4).
x²
x²16
x² + 16
x² + 8x + 16
x² + 16x + 16
By Using Identity:-
[tex] \quad \hookrightarrow \: { \underline{ \overline{ \boxed{ \pmb{ \sf{ {(a + b)}^{2} = \: {a}^{2} + {b}^{2} + 2ab \: }}}}}} \: \red \bigstar \\ [/tex]
[tex] \sf \longrightarrow \: {(x + 4)}^{2} [/tex]
[tex] \sf \longrightarrow \: {x}^{2} + {4}^{2} + 2 \times 4 \times x[/tex]
[tex] \sf \longrightarrow \: {x}^{2} + {4}^{2} + 8 \times x[/tex]
[tex] \sf \longrightarrow \: {x}^{2} + {4}^{2} + 8 x[/tex]
[tex] \sf \longrightarrow \: {x}^{2} + 16 + 8 x[/tex]
[tex] \sf \longrightarrow \: {x}^{2} + 8 x + 16[/tex]
Therefore ,
(x+4)² = x² + 8x + 16________________________________________
2) ( x+4 ) ( x-4 )[tex] \sf \longrightarrow \: ( x+4 ) ( x-4 )[/tex]
[tex] \sf \longrightarrow \: x ( x - 4 ) + 4( x-4 )[/tex]
[tex] \sf \longrightarrow \: {x}^{2} - 4x + 4x - 16[/tex]
[tex] \sf \longrightarrow \: {x}^{2} - 0 - 16[/tex]
[tex] \sf \longrightarrow \: {x}^{2} -16[/tex]
Therefore,
( x+4 ) ( x-4 ) = x² - 16________________________________________
a 99% confidence interval estimate can be interpreted to mean thata.we are 99% confident that the true population mean is covered by the calculated confidence interval. b.the probability that the calculated confidence interval covers the sample mean is 0.99.c.if all possible samples of size n are taken and confidence interval estimates are developed, 99% of them would include the sample mean somewhere within their interval.d.we are sure that the calculated confidence interval covers the true population mean.
The correct interpretation for a 99% confidence interval estimate is (a) "we are 99% confident that the true population mean is covered by the calculated confidence interval."
This means that if we were to repeat the sampling procedure many times and calculate a confidence interval each time, about 99% of these intervals would contain the true population mean. It does not mean that there is a 99% probability that the population mean lies within the calculated interval, and it does not guarantee that the calculated interval contains the true population mean. The correct interpretation for a 99% confidence interval estimate is (a) "we are 99% confident that the true population mean is covered by the calculated confidence interval."
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A triangle is defined by the three points: A = (7, 7) B = (2, 2), and C = (4, 8). Determine all three angles in the triangle (in radians).
The three angles in the triangle ABC are approximately 0.45 radians (A and C) and 1.37 radians (B).
To determine the three angles in the triangle ABC, we can use the law of cosines, which relates the lengths of the sides of a triangle to the cosine of the angles opposite those sides. The law of cosines states that for a triangle with sides a, b, and c, and angles A, B, and C opposite those sides:
```
a^2 = b^2 + c^2 - 2bc cos(A)
b^2 = a^2 + c^2 - 2ac cos(B)
c^2 = a^2 + b^2 - 2ab cos(C)
```
We can use these equations to solve for the three angles in the triangle ABC.
First, we need to find the lengths of the sides of the triangle. We can use the distance formula to find the lengths of the sides AB, BC, and AC:
```
AB = sqrt((7-2)^2 + (7-2)^2) = sqrt(50)
BC = sqrt((4-2)^2 + (8-2)^2) = sqrt(52)
AC = sqrt((7-4)^2 + (7-8)^2) = sqrt(10)
```
Now we can use the law of cosines to solve for the angles:
```
cos(A) = (b^2 + c^2 - a^2) / 2bc
cos(B) = (a^2 + c^2 - b^2) / 2ac
cos(C) = (a^2 + b^2 - c^2) / 2ab
```
```
cos(A) = (50 + 10 - 52) / (2 * sqrt(50) * sqrt(10)) = 0.9
cos(B) = (50 + 52 - 10) / (2 * sqrt(50) * sqrt(52)) = 0.2
cos(C) = (10 + 52 - 50) / (2 * sqrt(10) * sqrt(52)) = 0.9
```
Now we can use the inverse cosine function to find the values of A, B, and C:
```
A = acos(0.9) ≈ 0.45 radians
B = acos(0.2) ≈ 1.37 radians
C = acos(0.9) ≈ 0.45 radians
```
Therefore, the three angles in the triangle ABC are approximately 0.45 radians (A and C) and 1.37 radians (B).
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Simplify this question
8. F²* F by the power of 4
A.(2F) by the power of 8
B.(2F) by the power of 6
C F by the power 8
D. F by the power of 6
The expression is simplified to F⁸. Option C
How to determine the valueTo determine the value, we have that;
Index forms are described as forms used in the representation of numbers that are too small or large.
Other names for index forms are scientific notation and standard forms.
From the information given, we have that
F² by the power of 4
This is represented as;
(F²)⁴
To simply the index form, we need to expand the bracket by multiplying the exponential values, we get;
F⁸
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Find the volume of the square pyramid shown. Round to the nearest tenth as necessary.
a 70 cm
b. 229.7 cm
c. 1575 cm
d. 1050 cm³
The volume of the square pyramid that has sides of length 15 cm and height of 14 cm is: D. 1050 cm³
How to Find the Volume of a Square Pyramid?To find the volume of a square pyramid, you can use the formula: Volume = (1/3) * Base Area * Height.
Since the base of the square pyramid has sides of length 15 cm, the base area can be calculated as:
Base area = 15 cm * 15 cm
= 225 cm².
Plugging the values into the formula, the volume of the pyramid:
= (1/3) * 225 * 14 cm
= 1050 cm³.
Therefore, the volume of the square pyramid is 1050 cm³.
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Divide:
4x3 + 2x2 + 3x + 4 by x + 4
USE LONG DIVISION SHOW ALL WORK!
THANK YOU!!
Answer:
Here are the steps to divide 4x^3 + 2x^2 + 3x + 4 by x + 4 using long division:
```
4x^2 - 14x + 59
________________________
x + 4 | 4x^3 + 2x^2 + 3x + 4
- (4x^3 + 16x^2)
---------------------
-14x^2 + 3x
-(-14x^2) - 56x
----------------
59x + 4
59x + 236
--------
-232
```
Therefore, the quotient is 4x^2 - 14x + 59, and the remainder is -232.
.let f be differentiable function such that f(3) = 2 and f'(3) = 5. if the tangent line to the graph of f at x = 3 is used to find an approximaton to a zero of f, that approximation is:
a) .4
b) .5
c) 2.5
d) 3.4
e) 5.5
The approximation to a zero of the function f using the tangent line at x = 3 is 2.5 (option c).
When we have a differentiable function and we know the value of the function and its derivative at a specific point, we can use the tangent line at that point to approximate zeros of the function.
In this case, the function f has a tangent line at x = 3, and we know that the function value f(3) is 2 and the derivative f'(3) is 5.
The tangent line has the same slope as the derivative at that point, so its slope is 5. The equation of the tangent line can be written as: y - f(3) = f'(3)(x - 3)
Plugging in the values we know, we have: y - 2 = 5(x - 3)
Simplifying the equation, we get: y = 5x - 13
To find the zero of the function, we set y equal to zero and solve for x: 0 = 5x - 13
5x = 13
x = 13/5
So the approximation to a zero of the function f using the tangent line at x = 3 is 2.6, which is closest to 2.5 (option c).
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find the surface area of the prism. 9.4, 12mm, 8mm and 5mm
find a · b. |a| = 2, |b| = 7, the angle between a and b is 2/3
The product of vectors a and b is approximately 5.292.
To find the product of two vectors a and b, we need to use the dot product formula which is a · b = |a| |b| cosθ, where |a| and |b| are the magnitudes of vectors a and b, and θ is the angle between them.
In this case, we are given that |a| = 2 and |b| = 7, and the angle between a and b is 2/3. We can use this information to find cosθ as follows:
cosθ = cos(2/3) ≈ 0.378
Now, we can substitute the values into the formula:
a · b = |a| |b| cosθ
a · b = 2 * 7 * 0.378
a · b ≈ 5.292
Therefore, the product of vectors a and b is approximately 5.292.
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(q61) Using the table of integrals, solve
The expression gotten from integrating [tex]\int\limits {\frac{3}{((3x)^2+ 4)^\frac{3}{2}}} \, dx[/tex] is (a) [tex]\frac{3x}{4\sqrt{9x^2 + 4}} + c[/tex]
How to integrate the expressionFrom the question, we have the following trigonometry function that can be used in our computation:
[tex]\int\limits {\frac{3}{((3x)^2+ 4)^\frac{3}{2}}} \, dx[/tex]
Expand the expression
So, we have
[tex]\int\limits {\frac{3}{((3x)^2+ 4)^\frac{3}{2}}} \, dx = 3\int\limits {\frac{1}{((3x)^2+ 4)^\frac{3}{2}}} \, dx[/tex]
When integrated, we have
[tex]\int\limits {\frac{1}{((3x)^2+ 4)^\frac{3}{2}}} \, dx = \frac{x}{4\sqrt{9x^2 + 4}}[/tex]
So, the expression becomes
[tex]\int\limits {\frac{3}{((3x)^2+ 4)^\frac{3}{2}}} \, dx = \frac{3x}{4\sqrt{9x^2 + 4}} + c[/tex]
Hence, integrating the expression [tex]\int\limits {\frac{3}{((3x)^2+ 4)^\frac{3}{2}}} \, dx[/tex] gives (a) [tex]\frac{3x}{4\sqrt{9x^2 + 4}} + c[/tex]
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