2 years ago

Solve these equations. |x-7|=x-7 pls help!

Mathematics

1 answer:

Degger [83]2 years ago

3 0

Answer:

x=7

Step-by-step explanation:

Solve the absolute value and you immediately find that both sides have to equal zero.

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3 years ago

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A wheel has a diameter of 28 inches. What is the approximate distance around the outside of the wheel? Use 3.14 for pi.

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43.96

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2 years ago

I cant get it right it says my answer is wrong

kow [346]

I’m learning this too.. so what you do it see what will the number he if it was a while line so to find that out you will add 7+7 and get 14 so that’s the whole
So 7 x 7 will equal 49 and 49 x 3.14 will give you 153.86 as the answer

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2 years ago

Help ASAP! question in pic! will give brainliest!

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2 years ago

The diagram shows a solid shape.

Stolb23 [73]

Answer:

$756\pi$

Solution,

Volume of cone=270 pi cm^3

$\frac{1}{3} \pi \: {r}^{2} = 270\pi \\ or \: {r}^{2} \times 10 = 270 \times 3 \\ or \: {r}^{2} \times 10 = 810 \\ or \: {r}^{2} = \frac{810}{10} \\ or \: {r}^{2} = 81 \\ or \: r = \sqrt{81} \\ or \: r = \sqrt{ {9}^{2} } \\ r = 9 \: cm$

Volume of semisphere:

$\frac{2}{3} \pi {r}^{3} \\ = \: \frac{2}{3} \times \pi \times 9 \times 9 \times 9 \\ = 486\pi$

Total:

$270\pi + 486\pi \\ = 756\pi$

hope this helps...

Good luck on your assignment..

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2 years ago