3 years ago

Which is a related subtraction fact for 5+7=12

Mathematics

1 answer:

Nesterboy [21]3 years ago

3 0

Twelve - five = seven

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X=8<br> find ∛x=??????????????????

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The cube root of 8 is 2. 2*2*2=8

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3 years ago

Can someone help me pls

Wittaler [7]

Answer:

3 cm

Step-by-step explanation:

$V_{cylinder} = 189\pi \: cm^3$ (Given)

$h_{cylinder} = 21\: cm$ (Given)

Formula for $V_{cylinder}$ is given as:

$V_{cylinder} = \pi r^2h$

$\implies 189\pi = \pi r^2(21)$

$\implies \frac{ 189\pi}{21\pi} = r^2$

$\implies 9 = r^2$

$\implies \pm\sqrt 9 = r$

$\implies \pm 3 = r$

Length of radius can not negative

$\implies r = 3 \: cm$

Hope it helps you in your learning process.

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