Answer:
C 47.12 L
Step-by-step explanation:
1 gallon = 3.8 liters
12.4 gallons = x
Cross Multiply
= 12.4 × 3.8
47.12 liters
Option C is correct
Answer:
maybe D
Step-by-step explanation:
Answer: Option d.
Step-by-step explanation:
The trigonometric identity needed is:
Knowing that :
Substitute it into :
Simplify the expression:
Solve for . Apply square root at both sides of the expression: