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3 years ago

Simplify (-56) ÷ 7.A. 9B. -9 C. 8 D. -8

Mathematics

1 answer:

soldi70 [24.7K]3 years ago

3 0

It equals -8 (D) pls mark as brainliest

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(3n^3)^2 without exponet

sergejj [24]

Step-by-step explanation:

$(3 {n}^{3} )^{2} \\ = {3}^{2} \times {n}^{3 \times 2} \\ = 9{n}^{6}$

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3 years ago

PLEASE ANSWER ASASP<br> -5y + 4 = -11<br> what is y?

lorasvet [3.4K]

Answer:

Step-by-step explanation:

-5y + 4 = -11 Get rid of the numbers to get y alone.

-5y +4 minus 4 = -11 minus 4 Here you are removing the 4 from the left

-5y = -15 Now you will have to get rid of the -5

-5y/(-5) = -15/(-5)

y = 3

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3 years ago

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Please help me!!! Geometry question.

tigry1 [53]

Answer:

The volume of the figure is $(\frac{l^{3}}{3})[\frac{\pi }{2}-1]\ units^{3}$

Step-by-step explanation:

we know that

The volume of the figure is equal to the volume of the cone minus the volume of the square pyramid

step 1

Find the volume of the cone

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2}h$

we have

$r=\frac{l\sqrt{2}}{2}\ units$ ----> the diagonal of the square base of pyramid is equal to the diameter of the cone

$h=l\ units$

substitute

$V=\frac{1}{3}\pi (\frac{l\sqrt{2}}{2})^{2}(l)$

$V=\frac{1}{6}\pi (l)^{3}\ units^{3}$

step 2

Find the volume of the square pyramid

The volume of the pyramid is equal to

$V=\frac{1}{3}Bh$

where

B is the area of the base

h is the height of the pyramid

we have

$h=l\ units$

$B=l^{2}\ units^{2}$

substitute

$V=\frac{1}{3}l^{2}(l)$

$V=\frac{1}{3}l^{3}\ units^{3}$

step 3

Find the volume of the figure

$\frac{1}{6}\pi (l)^{3}\ units^{3}-\frac{1}{3}l^{3}\ units^{3}=(\frac{l^{3}}{3})[\frac{\pi }{2}-1]\ units^{3}$

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3 years ago

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yulyashka [42]

You multiply it to find the answer

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3 years ago

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A. a scientist is studying the change in population for two species of fish in a lake. The table shows how the numbers of each s

Rom4ik [11]

Answer:

The data can be modeled using linear equatins, because there's the same amount of population for fish A (+20 per year) and fish B (+30 per year) every year.

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3 years ago

Simplify (-56) ÷ 7.A. 9B. -9 C. 8 D. -8​

Simplify (-56) ÷ 7.A. 9B. -9 C. 8 D. -8