All categories

3 years ago

Evaluate the expression. (-1/2)^2 need two answers for crown

Mathematics

1 answer:

nasty-shy [4]3 years ago

4 0

Step-by-step explanation:

please mark me as brainlest

You might be interested in

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

The base of a rectangular prism has an area of 13 2/3, and the height of the prism is 8 5/6. What is the volume of the prism? Be

Fed [463]

Answer:

120 $\frac{13}{18}$

Step-by-step explanation:

The formula for finding the volume of a prism is:

V = Bh

You have to convert 13 $\frac{2}{3}$ into an improper fraction, like so:

$\frac{41}{3}$

Convert the other:

$\frac{53}{6}$

Multiply:

$\frac{41}{3}$ · $\frac{53}{6}$ = $\frac{2173}{18}$

Convert to mixed fraction:

120 $\frac{13}{18}$

6 0

3 years ago

Given the following proportion, find x 3/7 = 6/x

Novosadov [1.4K]

Answer:

x = 14

Step-by-step explanation:

3/7 = 6/x

3(x) = 6(7)

3x = 42

x = 14

4 0

4 years ago

Read 2 more answers

Help asap plz I can’t fail this test again

amm1812

Answer:

glide reflection

Step-by-step explanation:

4 0

3 years ago

Math Help? 20 Points

Pachacha [2.7K]

V= LWH so 3.75cm^3 or 3 (3/4)

Multiply those three sides and it comes out to 3.75

5 0

3 years ago