First we must know the equation

So

And that would be
cubic inchesor B.Hope I helped!
Answer:
39.
Step-by-step explanation:
We subtract f(1) which is the value of f(x) when x = 1 from f(3), then we divide by 3 - 1.
It is [(f3) - f(1]) / (3 - 1), so
Average rate of change = (3(3)^3 + 1) - (3(1)^3 + 1) / (3 - 1)
= (82 - 4) / 2
= 78 / 2
= 39.
The value of t is 3/2 or 1.5
<u>Step-by-step explanation</u>:
The given expression is 17/20 equals t plus -13/20.
<u>Changing it into an equation form :</u>
⇒ t + (-13/20) = 17/20
Keeping t alone on one side and constant terms to the another side,
t = (17/20) + (13/20)
Since the denominators are same, it is easy to simplify those fractions.
⇒ t = (17+13)/20
⇒ t = 30/20
⇒ t = 3/2
⇒ t = 1.5
The solution is t= 3/2 or t= 1.5
C=2pir
pi=3.14
r=26.5
c=(2)(3.14)(26.5)
c=(6.28)(26.5)
c=166.42
B is answer