The linear function y=−0.3x+48 models the percentage of men in a certain city, y, smoking cigarettes x years after 1990. Find the slope for the model. Then describe what this means in terms of the rate of change of male smokers in this city over time. m=?
The percentage of men in this city who smoke has
decreased
(Enter: increased or decreased or not changed ) at a rate of
?
% per year after 1990.

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

the factors of 24 are 1, 2, 3, 4, 6, 8, 12 and 24. hope this ! mark brainliest! you v much! : )