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2 years ago

PLS HELP ME ASAP FOR QUESTION 11 AND 13!! (MUST SHOW WORK!!!) + LOTS OF POINTS!! brainliest

Mathematics

1 answer:

ANEK [815]2 years ago

7 0

-26.125 / 5.5 = -4.75 or 7 3/4

11w - 1/2 = 5.5 - 11 = -5.5 or -5 1/2

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Need help with this problem pls

Dominik [7]

Volume is measured in cubic units.
So the ratio would become 6^3: 5^3 = 216:125

The answer would be A.

3 0

3 years ago

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

There are 162 magazines and books in a library. There are 54 more books

Strike441 [17]

Answer:

108 books.

Step-by-step explanation:

Let the number of magazines = m

Let the number of books = b

Given the following data;

Total number of m & b = 162

Translating the word problem into an algebraic equation, we have;

$b = m + 54$ ......equation 1

$m + b = 162$ ......equation 2

Substituting equation "1" into equation "2" we have;

$m + m + 54 = 162$

$2m + 54 = 162$

$2m = 162 - 54$

$2m = 108$

$m = \frac {108}{2}$

m = 54

Now to find the number of books;

$b = m + 54$

Substituting the value of "m" into the equation, we have;

$b = 54 + 54$

b = 108

Therefore, the total number of books in the library is 108 books.

7 0

3 years ago

Divide (-2x-3+8x^2) by (1+4x)

nataly862011 [7]

Answer:

Step-by-step explanation:

I'm going to show you a little secret. It's called symbolab.com. You can solve almost any algebraic problem. It also gives a step by step explanation

6 0

3 years ago

4/5 is equivalent to 12 over what

san4es73 [151]

Step-by-step explanation:

4/5 is equivalent to 12/15

8 0

3 years ago

Read 2 more answers

PLS HELP ME ASAP FOR QUESTION 11 AND 13!! (MUST SHOW WORK!!!) + LOTS OF POINTS!! *brainliest*

PLS HELP ME ASAP FOR QUESTION 11 AND 13!! (MUST SHOW WORK!!!) + LOTS OF POINTS!! brainliest