Answer:
SA= 552.92
Step-by-step explanation:
You are solving for the surface area of a right cylinder. The equation for a right cylinder is:
SA=2πrh+2πr^2
The radius is 8 and the height is 3 so plug those in:
A=2π(8)(3)+ 2π(8)²
Solve this out using pie as 3.1415
The answer would be 552.92
Twice 2 times
that is 100% correct
I think that the answer is 3 or 5
Answer:
A B D i think well i hope this helps
The expression for the area of a rectangle is given by:
A = (w) * (l)
Where,
l: long
w: width
the length is two less than twice the width:
l = 2w-2
Substituting the values:
420 = (w) * (2w-2)
We rewrite the expression:
210 = (w) * (w-1)
210 = w ^ 2-w
w ^ 2-w-210 = 0
The roots of the polynomial are:
w1 = -14
w2 = 15
We discard the negative root.
Width:
w = 15
Long:
l = 2w-2
l = 2 (15) -2
l = 30-2
l = 28
Answer:
the dimensions of Rosa's garden are:
w = 15 feet
l = 28 feet