We also conduct a hypothesis test with this data and find that students who retake the sat without prepit! also do significantly better (p-value < 0.0001). so now we want to determine if prepit! students improve more than students who retake the sat without going through the prepit! program. in a hypothesis test, the difference in sample mean improvement (“prepit! gain” minus “control gain”) gives a p-value of 0.004. a 90% confidence interval based on this sample difference is 3.0 to 13.0. what can we conclude?

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

christopher is 272,195 year old

step-by-step explanation:

can you make your screen more see able?

then i might be able to .

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.