Answer:
A= 80
Step-by-step explanation:
I'm not good at explaining my work. I sometimes can look at the problem and find the answer in 2 seconds.
Volume of a cube = 4/3πr^3
r = d/2 = 30/2 = 15
Volume = 4/3π(15)^3 = 4500π in^3
Answer:
B. 56π
Step-by-step explanation:
Circumfrance = 2πr OR πd(r*2)
C = 2π(28) -> C = 56π
OR
C = π(28*2) -> C = 56π
Answer:
It is not equivalent.
Step-by-step explanation:
You have to expand the brackets :
(x-4)(x+3)
= x(x) + x(3) - 4(x) - 4(3)
= x² + 3x - 4x - 12
= x² - x - 12
Therefore, x² - x - 12 / (x-4)(x+3) is not equivalent to x² - 4x - 12.
So for each earring, she uses 3 blue, 1 metallic and 2 green..
so for 8 pairs.....thats 16 earrings....she would need :
16 * 3 = 48 blue
16 * 1 = 16 metallic
16 * 2 = 32 green