Answer:
Determine whether a number is a solution to an equation.
Substitute the number for the variable in the equation. Simplify the expressions on both sides of the equation. Determine whether the resulting equation is true. If it is true, the number is a solution.
A. The population at the start of the experiment
B. The growth factor of the population every two weeks
C. The population after one hundred days
D. How many days it takes for the population to triple
If these were the choices of the above question, the answer would be B.) The growth factor of the population every two weeks.
14 days represents 2 weeks.
Since those lines are parallel, we know that A + B = 180°
So, we have:
8x + 74 + 2x + 56 = 180
10x + 130 = 180
10x = 180 - 130
10x = 50
x = 5
B = 2x + 56
B = 10+56=66
(To check:
A = 8x + 74
A = 40+74=114
114+66=180)
<u>Answer:</u>
225 ft²
<u>Steps:</u>
(20×10)+5² = 200+25 = 225 ft²