A new car sells for $30,000. The value of the car decreases by 16% annually. Which of the following equations models the value of the car after x number of years?

a. y = 30000(0.16)x
b. y = 30000(0.84)x
c. y = 30000(1.16)x
d. y = 30000(1.84)x

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

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.

what is the answer to this

thus, the first answer choice, y = sec x, is the correct one