Answer:
385.875 cm^3
Step-by-step explanation:
3.5/2 = 1.75
3.5^2 - 1.75^2 = 9.1875
3.5 * 9.1875/2 = 16.078
16.078 * 6 * 4 = 385.875
Answer: D
Step-by-step explanation:
(3 + 2i) (3-2i) = 13
Answer:
167.6 cm³
Step-by-step explanation:
the volume of a cone :
ground area × height / 3 = pi×r² × height / 3
r = 4 cm
height = 10 cm
pi×4² × 10 / 3 = pi×16×10/3 = pi×160/3 = 167.6 cm³
Answer:
B
Step-by-step explanation: