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bonufazy [111]
3 years ago
8

What is the surface ara of a sphere with a diameter of 16cm

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
8 0

Answer:

256\pi {cm}^{2}

Step-by-step explanation:

surface area of a sphere=4πr^2

diametre=16

radius =  \frac{diametre}{2}

radius=8

surface \: area \: of \: sphere = 4 \times \pi \times  {8}^{2}

\:  \:  \:  \:  = 4 \times \pi \times 64

\:  \:  \:  \:  = 256\pi {cm}^{2}

avanturin [10]3 years ago
7 0

Answer:

1024pi cm²

Step-by-step explanation:

4pi(16)²

4pi256

1024pi

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Answer:

A and D. She can make 32 servings in total.

Step-by-step explanation:

This is because if she were to mix up all of the products, she would have 16 pounds of mix in total.

5 1/8 + 4 7/8 + 6 = 16

This is choice A.

Then she must divide this by 1/2 because each serving is 1/2 pound.

16 ÷ 1/2 = 32

That is choice D.

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3 years ago
What’s the value of x? :/
kolbaska11 [484]

Answer:

x = 27

Step-by-step explanation:

According to congruent chords and arcs theorem, if \overline{XY} \cong \overline{ZY} then \arc{XY} \cong \arc{ZY}.

This means that \arc{XY} = \arc{ZY} = (6x - 20) degrees

Thus:

\arc{XY} + \arc{ZY} + \arc{ZX} = 360 (full circle = 360°)

\arc{XY} = (6x - 20)

\arc{ZY} = (6x - 20)

\arc{ZX} = 76

Plug in the values into the equation

(6x - 20) + (6x - 20) + 76 = 360

6x - 20 + 6x - 20 + 76 = 360

Add like terms

12x + 36 = 360

Subtract 36 on both sides

12x = 360 - 36

12x = 324

Divide both sides by 12

x = 27

8 0
3 years ago
Solve the inequality. 10k <75 and 4-k is less than or equal to 0
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Is it 10k < 75 , 4-k?
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Answer:

Hi there!

Your answer is:

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39+17x = 50+12x

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