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3 years ago

Please help me with my homework

Mathematics

1 answer:

Alona [7]3 years ago

4 0

so for A it is 16 times as large because the area is 3*3 which is 9 but since it is a triangle the area is halved and is 4.5 and divide 72 by 4.5 which gives us 16

then for b I believe that the scale factor is 4

and for C it is asking for the bottom side of the scaled copy not of triangle A and 4*3=12 so the bottom is 12

ok now its complete =)

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Find the area of the shape either enter an exact answer in terms of Pi or use 3.14 for pi and enter your answer as a decimal

sammy [17]

Given:

Given that the radius of the figure is 6 units.

We need to determine the area of the shape.

Angle of the shape:

The angle of the shape is given by

$\theta=360-90=270$

Hence, the angle of the shape is 270°

Area of the shape:

The area of the shape can be determined using the formula,

$A=(\frac{\theta}{360}) \pi r^2$

Substituting r = 6, we get;

$A=(\frac{270}{360}) (3.14)(6)^2$

Simplifying, we get;

$A=(0.75)(3.14)(36)$

$A=84.78$

Thus, the area of the shape is 84.78 square units.

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3 years ago

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Answer:

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3 years ago

Big Brothers, Inc. borrows $267,999 from the bank at 18.16 percent per year, compounded annually, to purchase new machinery. Thi

Katyanochek1 [597]

Based on the amount borrowed and the interest per year, Big Brothers, Inc will pay an annual payment of $59,973.15.

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Formula is:

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2 years ago

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Step-by-step explanation: divide and round

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3 years ago

Read 2 more answers

The highest possible z-score that is still in the bottom 95% of the systolic blood pressure distribution is z =−1.645 . Use this

lawyer [7]

Answer:

(1) The value of X is, 151.13.

This score X, is the 95th percentile of systolic blood pressure scores among women. The percentile rank of this score is 95.

(2) The percentage of women have systolic blood pressure in the range 140 to 159 is 9.01%.

(3) The percentage of women having systolic blood pressure below 90 is 21.19%.

Step-by-step explanation:

The random variable X is defined as the systolic blood pressure of women.

The distribution of X is, N (110, 25²).

(1)

The value of z-score that is in the bottom 95% is, 1.645.

Compute the value of X as follows:

$z=\frac{X-\mu}{\sigma}\\1.645=\frac{X-110}{25}\\X=110+(1.645\times 25)\\X=151.125\\\approx151.13$

The value of X is, 151.13.

This score X, is the 95th percentile of systolic blood pressure scores among women. The percentile rank of this score is 95.

(2)

Compute the probability of X between 140 and 159 as follows:

$P(140$

The percentage of systolic blood pressure between 140 and 159 is,

0.0901 × 100 = 9.01%

Thus, the percentage of women have systolic blood pressure in the range 140 to 159 is 9.01%.

(3)

Compute the probability of X below 90 as follows:

$P(X$

The percentage of women having systolic blood pressure below 90 is,

0.2119 × 100 = 21.19%.

Thus, the percentage of women having systolic blood pressure below 90 is 21.19%.

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4 years ago