Answer:
36
Step-by-step explanation:
x^2 + 12 x = 40
To complete the square, take the coefficient of the x term
12
Divide by 2
12/2 = 6
Square it
6^2 = 36
Add 36 to each side
Area of a pyramid is ⅓ * area of Base * height
or ⅓ * 144 * 42 or 2016 cm³
Answer:
9.01 maybe my math might be wrong
Step-by-step explanation:
Based on the model, 28.6 is the estimated increase, in inches, of a boy’s height each year.