Answer:
A
Step-by-step explanation:
Given
x² = 16 ( take the square root of both sides )
= ± ← note plus or minus sign
x = ± 4
Since 4² = 4 × 4 = 16 and
(- 4)² = - 4 × - 4 = 16
Minus a and minus c from both sides
2S-a-c=b
b=2S-a-c
Answer: 64
Step-by-step explanation:
Answer:
13 cm
Step-by-step explanation:
Volumes should be equal
20 × 70 × 29 = 3.14 × 31² × h
h = 13.4546683723 cm