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3 years ago

Please answer... I Got Pointsss

Mathematics

1 answer:

DaniilM [7]3 years ago

7 0

Answer:

its is 50 i am sure of it

Step-by-step explanation:

because 50 is the middle and it is directly on the middle also i have the same school program and i pased that test

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A square has an area of 81 square inches. What is its perimeter?

disa [49]

Area of square = $s^2$ where, $s$ is the side length of the square.

$81=s^2$

$9=s$

s must be positive since it is a side length, so the negative root of 81 is rejected.

Perimeter= $4s$

Perimeter= $4(9)=36inches$

7 0

1 year ago

Read 2 more answers

Using the letter n to represent a number, express

BaLLatris [955]

Answer:

2n-4

Step-by-step explanation:

You're subtracting 4 from the product of n times 2

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3 years ago

−7x−3≤ 25

Ivahew [28]

and you graph it from -4 to the right with close circle

Hope this help

8 0

2 years ago

Which term is correct when simplifying √128? A.) 16 B.) 12 C.) 10 D.) 8√2

alina1380 [7]

When dealing with roots, we want to factor to see if it's possible

$128 = 2 \times 64$
$= 2 \times 2 \times 32$
$= 2 \times 2 \times 2 \times 16$
$= 2 \times 2 \times 2 \times 2 \times 8$
$= 2 \times 2 \times 2 \times 2 \times 2 \times 4$
$= 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2$

now since we're dealing with square roots, we circle every pair of numbers we see in the final factoring
so..
$= (2 \times 2) \times (2 \times 2) \times (2 \times 2) \times 2$

now for every circled pair, we take only 1 of the 2 circled and bring it outside
anything left uncircled stays inside the root
so..
$= 2 \times 2 \times 2 \times \sqrt{2}$

now simply multiply
$8 \sqrt{2}$

3 0

2 years ago

Ella grew 3 over 4 of an inch last year. Ben grew 2 over 3 of an inch last year. How much more did Ella grow than Ben last year?

IrinaK [193]

Answer:

Ella grew $\frac{1}{12}$ of an inch more

Step-by-step explanation:

For this problem, you want to subtract Ben's growth from Ella's.

This expression would be $\frac{3}{4}$ - $\frac{2}{3}$ .

To work these out, they must have the same denominator (which should be the lowest common multiple or LCM).

In this case, the LCM is 12, so you want to multiply each side so the denominator is 12. This means the first fraction should be multiplied by $\frac{3}{3}$ and the second by $\frac{4}{4}$ .

This makes the expression $\frac{9}{12}$ - $\frac{8}{12}$ , which equals $\frac{1}{12}$ .

**This content involves adding and subtracting fractions, which you may want to revise. I'm always happy to help!

7 0

2 years ago