Answer:
4/3 pi radius cubed
Step-by-step explanation:
4/3 pi x (8x8x8)
512 x 4/3 pi
2144.660585
Answer:
Step-by-step explanation:
CBA = 31
BAC = 59
31 + 59 = 90
The two angles = 90 degrees.
There are complementary.
Answer:
12.5% chance
Step-by-step explanation:
First a spinner has a 25% chance of landing on a one, then a tails is a 50% chance, subtract devide 25 by two and you get 12.5.
Steps to solve:
-4(r + 3) = -42
~Distribute
(-4 * r) + (-4 * 3) = -42
~Simplify
-4r - 12 = -42
~Add 12 to both sides
-4r - 12 + 12 = -42 + 12
~Simplify
-4r = -30
~Divide -4 to both sides
-4r/-4 = -30/-4
~Simplify
r = 7.5
Best of Luck!