The volume is the triangular prism is 6 cm
Answer:
x = 4 ± 
Step-by-step explanation:
Given
(x - 12)(x + 4) = 9 ← expand the left side using FOIL
x² - 8x - 48 = 9 ( ad 48 to both sides )
x² - 8x = 57
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 4)x + 16 = 57 + 16
(x - 4)² = 73 ( take the square root of both sides )
x - 4 = ±
( add 4 to both sides )
x = 4 ± 
Answer..
Step-by-step explanation:
The answer is 9 gallons.
? - 8 + 10 -5 = 6
Then fill in the choices.
3-8+10-5=0
7-8+10-5=4
9-8+10-5=6
11-8+10-5=8