Answer:
2.33333333
Step-by-step explanation:
Answer:
d = -60
Step-by-step explanation:
Given:
-1/4d - 2/5d = 39
-5d-8d/20 = 39
-13/20d = 39
Divide both sides by -13/20
d = 39 ÷ -13/20
= 39 × -20/13
= -60
d = -60
Answer:
poop
Step-by-step explanation:
Answer:

Step-by-step explanation:
The derivative of a sum is the sum of the derivatives by the sum rule, and this also extends to differences by the constant multiple rule

By the constant multiple rule, we have

The derivative of any constant is 0.
The power rule says that for any real number
,
. And note that
. Thus we have

since 
Volume of a cube = 4/3πr^3
r = d/2 = 30/2 = 15
Volume = 4/3π(15)^3 = 4500π in^3