Answer:
Volume = 1114.1 
Step-by-step explanation:
Recall that the formula for the volume of a pyramid is given by:

where B is the area of the pyramid's base (in our case a square of side 12,8 in), and H the pyramid's height (in our case 20.4 in).
Then the square base of the pyramid has an area given by: 
Finally,we can now write the volume of the pyramid as:

Rounding the answer to a tenth of a cubic inch, we get:
Volume = 1114.1 
Answer:
sin A = 
Step-by-step explanation:
sin A = opposite side/hypotenuse
sin A =
/ 12 = 
Answer:
x= -7-11
x=-18
Step-by-step explanation:
Answer: √3 + 2√2
Step-by-step explanation: Simplify the expression.
Exact Form:
√3 + 2√2
Decimal Form:
4.56047793 . . .
Hope this helps! :) ~Zane
Answer:
x^2 -7x-18
Step-by-step explanation:
(x-9)(x+2)
FOIL
first x*x = x^2
outer 2x
inner -9x
last -9*2 =-18
Add together
x^2 +2x-9x-18
Combine like terms
x^2 -7x-18