Answer:
-5x^3 +11x^2-2
(8x^2 − 1 + 2x^3) − (7x^3 − 3x^2 + 1)Distribute the minus sign(8x^2 − 1 + 2x^3) − 7x^3 + 3x^2 - 1I like to line them up vertically from largest to smallest2x^3 + 8x^2 − 1− 7x^3 + 3x^2 - 1------------------------------5x^3 +11x^2-2
correct me if im wrong
Step-by-step explanation:
(8x^2 − 1 + 2x^3) − (7x^3 − 3x^2 + 1)
Distribute the minus sign
(8x^2 − 1 + 2x^3) − 7x^3 + 3x^2 - 1
I like to line them up vertically from largest to smallest
2x^3 + 8x^2 − 1
− 7x^3 + 3x^2 - 1
-----------------------------
-0.0625
-0.25
1
-4
16
h = 3 ft
The lateral surface area of a cylinder is given by
LSA=2πrh where r is the radius and h is the height
The diameter is 312 inches
Changing to ft
312/12 =26 ft
Dividing by 2 to get the radius
26/2 = 13 ft
LSA=2πrh
Using 3.14 for pi
245 ft^2 = 2 * 3.14* 13 ft * h
245 = 81.64 h
Divide each side by 81.64
245/81.64 = 81.64 h/81.64
3.000979912 = h
To the nearest foot
3 = h
