Answer:
Step-by-step explanation:
B part
the variability of the two distributions appears to be about the same.
C part
. /. = .
the separation of . MADs. There is a difference between the population means. Going to college is worth the effort.
B. V=9
Multiply it out, then subtract 99 from both sides, then divide by 11
Since the measures of the two angles are in the ratio 8:1, this means the bigger angle's is 8x and the smaller angle is x. Since they are complementary, they add to 90°, so you create the equation 8x+x=90°. This can be simplified to 9x=90°. Then, you divide 90 by 9 to get 10. This means x=10. Next, you replace x with 10 to find the measure of the bigger angle. 8x10=80, so the larger angle is 80°.
#6
D. 3.0 x 10^8
#7
A. y = 3.5x + 7
#8
B. 5
