Answer:
2
Step-by-step explanation:
2+2=4
2*4=8
8+4=12
Answer:
Radius: 7.75; Volume: 142 (rounded to 3 s.f.)
Step-by-step explanation:
The vollyball is a sphere.
The diameter of a sphere is twice as much as its radius.
Radius = 15.5 ÷ 2
= 7.75
The volume of a sphere is
r² where r is the radius.
Volume =
(7.75)²
= 45.046875
= 142 (rounded to 3 s.f.)
Answer:
Step-by-step explanation:
-9x^3(x^2 - 4x - 21) =
-9x(x - 7)(x + 3) <===
Answer: C
Step-by-step explanation:
Answer:
B. -8
Step-by-step explanation:
F(x) = 2x
F(-4) = 2(-4) = -8