Answer:
220
Step-by-step explanation:
(2x+2)(10x^2 - 6x + 8) =
2x(10x^2 - 6x + 8) + 2(10x^2 - 6x + 8) =
20x^3 - 12x^2 + 16x + 20x^2 - 12x + 16 =
20x^3 + 8x^2 + 4x + 16 <==
I'm guessing you're asking for the length and width.
Width: 5
Length: 13
l=5(2)+3
l=10+3
l=13
260/4 = 65 square inches is area of a side
area of a side = base*height/2 = base *13/2
65 = b*13/2
130=b*13
b = 10 so the side length equal 10 inches
area of base = 10*10 = 100
volume of a pyramid = area of base time height /3
(the height of pyramid)^2 = 13^2 - 5^2
h^2 = 169 -25 = 144
h = 12
V = area of base time height /3 = 100*12/3 = 400 cubic inches
hope this will help you
