7. The human population of the Earth can be modeled by P(t) = 3.1(1.016)', where i represents the number of years since 1963, and P(1) is measured in billions of people. Is the human population of the Earth increasing or decreasing? Explain how you can tell using the equation.​

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>

a

step-by-step explanation:

the answer is a

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.