Answer:
3x + 21
Step-by-step explanation:
3(x+7)
3 * x + 3 * 7
3x + 21
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
Answer:
The answer is B.
Step-by-step explanation:
The tank initially had 1,200 gallons of water, which is leaking at the rate of 2.5 gallons per hour.
Answer:
Mars is 6.79 X 10^6 m
Step-by-step explanation:
Mars is at a distance of 206,600,000 km from the Sun at perihelion At aphelion, Earth is at a distance of 152,100,000 km from the Sun. This is a difference of 54,500,000 km, or 34,000,000 miles.
Answer:
110
Step-by-step explanation:
Using the expansion
(a + b)³ = a³ + b³ + 3ab(a + b)
Given
x + 
= 5 ( cube both sides )
(x + )³ = 5³ = 125 ← expand left side using identity
x³ + 
+ 3(x × )(x + ) = 125
x³ + + 3(1)(5) = 125
x³ + + 15 = 125 ( subtract 15 from both sides )
x³ + = 110
