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3 years ago

Please help math 30+ points

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

5 0

Answer:

B and E

Step-by-step explanation:

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A window in the shape of a parallelogram has a base of 28 inches and a height of 71 inches. What is the area of the window?

Norma-Jean [14]

The area of the window is 1988 inches

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3 years ago

$6,700 is invested in an account earning 8. 3% interest (APR), compounded daily. Write a function showing the value of the accou

aliina [53]

Answer:

A = $6,700(1 +0.0865^t)

APY = 8.65%

Step-by-step explanation:

Daily compounding of interest results in an annual growth factor of ...

gf = (1 +r/365)^365 . . . . for APR = r

Your growth factor is ...

gf = (1 +0.083/365)^365 ≈ 1.086532

Then the growth rate (APY) is ...

APY = gf -1 ≈ 8.65%

The account value is multiplied by the growth factor each year, so after t years will be ...

A = P(1 +APY)^t

A = $6,700(1 +0.0865)^t . . . . . . . 0.0865 is the annual growth rate

7 0

3 years ago

Table 1.19 Frequency of Number of Movies Viewed

prohojiy [21]

Answer:

idk

Step-by-step explanation:

3 0

3 years ago

Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch's 200 cows. Instead of weighing all of t

Zolol [24]

Answer:

The value is $E =19.6$

Step-by-step explanation:

From the question we are told that

The mean of Jo cows is $\= x_1 = 1350$

The standard deviation of Jo cow is $s_1 = 50$

The mean of Val cows is $\= x_2 = 1420$

The standard deviation of Val cows is $s_2 = 50$

The sample size for both Val and Jo is n = 25

Let assume that the level of significance is $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

Hence margin of error for Jo is

=> $E = 1.96 * \frac{50}{\sqrt{25} }$

=> $E =19.6$

4 0

3 years ago

How is the image that results from a 90° counterclockwise rotation similar to the image that results from a 270° clockwise rotat

polet [3.4K]

Answer: 90 degrees counterclockwise and 270 degrees clockwise are the same things and you need to use the same formula for both

Step-by-step explanation:We swap the value of x and y and negate the value of y. So the value of x becomes the value of y and value of y becomes the value of x. so the formula is:

(x, y) –> (-y, x)

Before Rotation After Rotation

(x, y) (-y, x)

hope this helps

5 0

3 years ago