F(t)=50001+4999e^-0.8t where F(t) is the total number of students infected after days. The college will cancel classes if 40% or more of the students are infected.
(c)After how many days will the college cancel classes?

total number of students infected after days. The college will cancel classes if 40% or more of the students are infected.

(c)After how many days will the college cancel classes?

Step-by-step explanation:

given

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17

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.