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2 years ago

Find the area of a square with sides equaling 7ft.

Mathematics

1 answer:

kondor19780726 [428]2 years ago

8 0

28 because there’s 4 sides to a square and 4 times 7 is 28

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A sociologist recently conducted a survey of senior citizens who have net worths too high to qualify for Medicaid but have no pr

hjlf

Answer:

a) $s= 9.74$

D. 9.74

b) $Median= 74$

B. 74

Step-by-step explanation:

Part a

We have the following dataset given:

69 74 75 62 70 93 64 69 61 88 67 77 87 90 66 91 77 63 82 82 71 74 76 65 83

We can begin calculating the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = 75.04$

Now we can calculate the sample deviation with the following formula:

$s =\sqrt{\frac{\sum_{i=1}^n (X_i-\bar X)^2}{n-1}}$

And after replace we got:

$s= 9.74$

Part b

For this case we need to sort the value on increasing way:

[1] 61 62 63 64 65 66 67 69 69 70 71 74 74 75 76 77 77 82 82 83 87 88 90 91 93

And the median would be the value in the position 13 and we got:

$Median= 74$

6 0

3 years ago

Can someone show me the steps to doing this ?

VMariaS [17]

U're goal is to get k alone.
So divide both sides by 9/10.
3/2 divided by 9/10 is 5/3

3 0

3 years ago

Please help. Approximately how many cubic feet of water does she need?

maria [59]

Answer:

The amount of water she needs to pump in:

V = Base area x Height x 1/2 = (4/2)^2 x pi x 0.75 x 1/2 = 1.5pi = ~4.7 (ft3)

=> Option D is correct.

Hope this helps!

3 0

3 years ago

Given a temperature of 27°F, find the equivalent in °C.

Svet_ta [14]

Answer:

-2.77778°C

Step-by-step explanation:

(27°F − 32) × 5/9 = -2.778°C

4 0

2 years ago

What is the measure of XYZ?<br> O A. 75°<br> O B. 56.5°<br> O C. 38°<br> O D. 76

tatyana61 [14]

is there a picture i can use to help out?

4 0

3 years ago