The volume of the sphere is 267. 95 cm³.
<h2>Given </h2>
The radius of the sphere is 4cm.
<h3>What is the volume of sphere?</h3>
The volume of a sphere is the three-dimensional space occupied by a sphere.
The volume of the sphere is determined by the following formula;
Where r is the radius of the sphere.
Substitute all the values in the formula;
Hence, the volume of the sphere is 267. 95 cm³.
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Area is square units, so the new area would be the scale factor squared:
Scale factor is 2, so the area would increase by 2^2 = 4
The answer is B.4
Answer:
D
Step-by-step explanation:
You know that 1 km=1000 m, then the length of the road 
km is 
metres.
A group of 8 people are picking up litter along the road and each person is assigned an equal section of the road. The whole road has length 800 m, then for each person will be assigned 800:8=100 m of the road.
If you want to know the length of each part in km, then 1 m=0.001 km and 100 m =1 m·100=0.001 km ·100=0.1 km.
Answer:
The answer is D(t) = 160 - 25t
Step-by-step explanation:
well khan academy said it lol
