The area of revolution is the integral of 2π(radius)(differential of arc length).
![\int\limits^2_1 {2 \pi t^3 \sqrt{(9/4)t^4 +36)}} \, dt](https://tex.z-dn.net/?f=%20%5Cint%5Climits%5E2_1%20%7B2%20%5Cpi%20t%5E3%20%5Csqrt%7B%289%2F4%29t%5E4%20%2B36%29%7D%7D%20%5C%2C%20dt)
= (2π/27)*(72^(3/2) -38.25^(3/2)) ≈ 87.1215
By converse of isosceles triangle theorem, 5x+5=7x-1
5x+5=7x-1
-5x+5x+5=7x-5x-1
5=2x-1
5+1=2x-1+1
6=2x
6/2=2/2x
X=3
AC=6x+7 when x=3
6x+7=6 (3)+7=18+7=25
AC=25
26 / 8 = 3.25;
14 / 4 = 3.50;
The mistake is obvious !
The perimeter is 450
if you use the formula
P=2l+2w
Answer:
$8.75
Step-by-step explanation:
25 × 0.65 =16.25
25 -16.25=8.75