Answer:
c. 64 ....................
Answer:
-4x^4-6x^3-8x^2-24x
Step-by-step explanation:
distribuir parênteses
Aplicar regras de menos mais ;
simplificar
Answer:
y = 4
Step-by-step explanation:
Move all terms containing y to the left, all other terms to the right. Add '-2y' to each side of the equation.
-5 + 3y + -2y = -1 + 2y + -2y
Combine like terms: 3y + -2y = 1y
-5 + 1y = -1 + 2y + -2y
Combine like terms: 2y + -2y = 0
-5 + 1y = -1 + 0
-5 + 1y = -1
Add '5' to each side of the equation.
-5 + 5 + 1y = -1 + 5
Combine like terms: -5 + 5 = 0
0 + 1y = -1 + 5
1y = -1 + 5
Combine like terms: -1 + 5 = 4
1y = 4
Divide each side by '1'.
y = 4
Simplifying
y = 4
The formula of pyramid is 1/3 Bh where B is area of base and h is height.
So it's just V = (1/3)·10·10·12 = 400
Final answer: 400 ft³
