I think is
4x - 3 (-2) = 18
4x + 6 = 18
4x = 12
x = 3
Answer:
Step-by-step explanation:
<u>Use formula:</u>
<u>Given</u>
- P = $700
- r = 4% = 0.04
- t = 7 years
<u>Find the amount:</u>
- A = 700*e^(0.04*7) = 926.19
15x^2 = 12x
divide each side by x
15x = 12
now divide each side by 15
x = 12/15 or 4/5 which is also 0.8
Answer:
<em>Correct choice: B</em>
Step-by-step explanation:
<u>Equation Solving</u>
The area of a trapezoid with height h and bases b1 and b2 is given by:

We must solve this formula for h.
First, multiply by 2 to eliminate denominators:

Now, divide by b1+b2:

Swapping sides:

Correct choice: B