Answer:
The side lengths are 1.5m and 2.5m.
Step-by-step explanation:
Answer:
Step-by-step explanation:
the perimeter of a square that has a side of (4x-3) is ; 4(4x-3) = 16x-12
Answer:

Step-by-step explanation:
r = Radius of semicircle = 
Area of semicircle is given by

The area of the semicircle is
.
Answer:
Step-by-step explanation:
The volume for a sphere is
. Our radius is 21 inches, so
and
. Multiplying straight across the top, using the fact that 3.14 is pi:
and divide to get that
V = 38772.72 in^3
Answer: 6n + 2 = 8
Step-by-step explanation:
2 more means add but due to order of operations, you do multiplication first. a number is represented by n. 6n means 6 x n. Then add 2 to get 8. You can sub in 1 for n and it will be solved.