Find the surface area of a cylinder with a height of 9 ft and a base radius of 3 ft.
Use the value 3.14

282.72ft^2

Step-by-step explanation:

A=2(pi)rh+2(pi)r^2

A=2(pi)(3)(9)+2(pi)(3)^2

A=2(pi)(27)+2(pi)(9)

A=2(84.82)+2(28.27)

A=169.64+113.08

A=282.72

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

ans789

step-by-step explanation: