Step-by-step explanation:
because angle A and C are similar, so
9x-8=28
9x=36
x=4
3000 is the freaking right answer
Ball=sphere
Vsphere=pir^3
d/2=r
d=9
9/2=4.5=r
V=pi4.5^3
V=pi91.125
aprox pi=3.141592
V=286.227
round
V=286 in^3
Answer:
(38.1,88.6)
Step-by-step explanation:
We are given the following in the question:
Sample mean,
= 38.3
Sample size, n = 695
Alpha, α = 0.05
Population standard deviation, σ = 3.6
95% Confidence interval:
Putting the values, we get,
