Answer:
351 miles
Step-by-step explanation:
14 gallons for 378 miles = 1 gallon for 27 miles
1 * 13 gallons = 27 * 13 miles
13 gallons = 351 miles
Answer:
A
Step-by-step explanation:
We want to solve the equation:

To do so, we can rewrite the equation.
Recall the double-angle for sine:

By substitution:

Distribute:

We can subtract 3cos(x) from both sides:

And factor:

Hence, our answer is A.
*It is important to note that we should not divide both sides by cos(x) to acquire 10sin(x) = 3. This is because we need to find the values of x, and one or more may result in cos(x) = 0, and we cannot divide by 0. Hence, we should subtract and then factor.
Answer:
2 - 5x
Step-by-step explanation:
Answer is in the problem:
2 less than = 2 minus a number ( 2- )
five times a number = 5x ( we don't know what number five is being multiplied by, so we put a variable)
Answer:
-23.21
Step-by-step explanation:
Edge 2021
Step-by-step explanation:
1. a² - ( b ² - 2bc + c² ) = a ² - b ² + 2bc - c²
2. 8p² - 18 q²
3. 3ab² - c²d + 3ab - b²c²
4. x² - 2x + 1