Answer:
300 cm
Step-by-step explanation:
8 x 2.5 = 20
6 x 2.5 = 15
20 x 15 = 300 cm²
Answer:
D. 9 cm
Step-by-step explanation:
The radius of the sphere can be found by solving the volume equation for the radius.
V = 4/3πr³
3V/(4π) = r³
r = ∛(3V/(4π)) = ∛(3×3052/(4×π)) ≈ ∛728.611
r ≈ 9.0 cm
The radius of the sphere is about 9 cm.
256/3*22/7 is right answer.
Answer:
x = - 7, x = 6
Step-by-step explanation:
to find the x- intercepts set f(x) = 0, that is
x² + x - 42 = 0
To factor, consider the factors of - 42 which sum to + 1
These are + 7 and - 6
(x + 7)(x - 6) = 0
equate each factor to zero and solve for x
x + 7 = 0 ⇒ x = - 7
x - 6 = 0 ⇒ x = 6
