Mathematics, 16.04.2020 08:06 kristenhani

A rock is in the shape of a sphere with a radius of 5.08 centimeters. The rock has a density of 5.5 grams per cubic centimeter. Find the mass of the rock to the nearest whole gram.

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Answers

The mass of the rock is 3020.27 grams , if a rock is in the shape of a sphere with a radius of 5.08 centimeters and the rock has a density of 5.5 grams per cubic centimeter,

Step-by-step explanation:

The given is,

Radius of the rock is 5.08 cm (Sphere)

Density of rock 5.5 grams per cubic centimeters

Step:1

Formula for volume of sphere,

$Volume, V= \frac{4}{3} \pi r^{3}$ ..........................(1)

Where, r - Radius of sphere

From the given values,

r = 5.08 cm

Equation (1) becomes,

$V= \frac{4}{3} \pi (5.08)^{3}$

$V= \frac{4}{3} (3.1415) (5.08)^{3}$

$= \frac{4}{3} (3.1415) (131.097)$

V = 549.14 cubic centimeters

Step:2

Mass of rock = Volume of rock × Density of rock

= 549.14 × 5.5 ( ∵ $cm^{3} (\frac{ gram}{cm^{3}} ) = gram$ )

= 3020.27 grams

Mass of the rock = 3020.27 grams

Result:

The mass of the rock is 3020.27 grams , if a rock is in the shape of a sphere with a radius of 5.08 centimeters and the rock has a density of 5.5 grams per cubic centimeter,

Answer from: Quest

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

Answer from: Quest

Bis the answer! hope this

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