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Lesechka [4]
3 years ago
8

Can anybody help solve this?

Mathematics
2 answers:
Inessa [10]3 years ago
3 0

Answer:

ok so. wheres the question

tiny-mole [99]3 years ago
3 0

Answer:

100π and \frac{500\pi }{3}

Step-by-step explanation:

<em>The other picture wouldn’t attach, but the radius is 5.</em>

Surface area = 4πr²

r= 5

4.π5²= 25.4.π = 100π

<em>Volume =</em> \frac{4}{3} \pi r^{3}

r=5

\frac{4}{3} \pi 5^{3} = 125.4.\pi = \frac{500\pi }{3}

Hope this helps ^-^

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The formula for the volume of a cone is V = jarh, where V is the volume, r is the radius, and h Is the heightWhat is the volume
olga nikolaevna [1]

Given:

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The height,

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Substitute the values of r and h in the above formula we get,

\begin{gathered} V=\frac{1}{3}\pi\times(4x)^2\times21xy^2 \\ =\frac{1}{3}\pi\times16x^2\times21xy^2 \\ =\pi\times16x^2\times7xy^2 \\ =112\pi x^3y^2 \end{gathered}

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7 0
1 year ago
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maks197457 [2]
2500
34420
4.59*10^9
3.442*10^4
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Need help with question a
SVEN [57.7K]

Answer:

1.8 cm

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Step-by-step explanation:

AC⊥BC

BD=BC=x

  • (x+5)²+x²=7²
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BC= 1.8 cm

Area of ABC= 1/2*1.8*7= 6.3 cm²

4 0
3 years ago
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