V = 4/3 * pi * r^3
V = 4/3 * 3.14 * 21^3
Simplify exponent:
V = 4/3 * 3.14 * 9261
Multiply:
V = 38772.72
Answer:
x=30
Step-by-step explanation:
to find the value of x you have to find K(constant number).

Answer:
141/2, 279/4
Step-by-step explanation:
Answer:
90degrees
Step-by-step explanation:
The sum of complimentary angles will always be 90degrees