2 years ago

What the image of (- 6, 5) after a reflection over the line y = x ?

Mathematics

1 answer:

zubka84 [21]2 years ago

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Answer:

Step-by-step explanation:

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Answer:

Part 1) The volume of the ball is 256 cm³

Part 2) The radius of the ball is 3.94 cm

Step-by-step explanation:

Part 1) we know that

The density is equal to divide the mass by the volume

D=m/V

Solve for the volume

The volume is equal to divide the mass by the density

V=m/D

In this problem we have

m=128 g

D=0.5 g/cm³

substitute

V=128/0.5=256 cm³

Part 2) what is the radius of the ball?

we know that

The volume of the sphere (ball) is equal to

$V=\frac{4}{3}\pi r^{3}$

we have

$V=256\ cm^{3}$

assume

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substitute and solve for r

$256=\frac{4}{3}(3.14)r^{3}$

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$r^{3}=768/(12.56)$

$r=3.94\ cm$

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