Answer:
A=640.88
Step-by-step explanation:
if the diameter is 12, the radius , r=12/2=6
we have r=6, h=11
Surface area, A= 2πrh+2π r^2
A=2*3.14*6*11+2*3.14*(6)^2=640.88
It's a number that is less than 38
The answer is the top one. Let me know if you want me to explain it.
Answer:
based on information that you provided;
V=(c+20)*(c+4)*c
Step-by-step explanation:
c -height
b-width
a-length
------------------------------
c=b-4 b=c+4
a=b+16
a=c+4+16=c+20
----------------------------
V=abc
V=(c+20)(c+4)*c
Points are collinear if they lie on the same line.
First find the equation of the line that passes through the points B and C.

The points lie on the line y=(-3/4)x.
Now plug the coordinates of the given points into the equation and check if they satisfy the equation.


The answer is
A.