A health professional is investigating whether stress level before a routine practice session can be used to predict the mean stress level before a major figure skating competition. The health professional selected a random sample of 6 figure skaters and measured the stress level before a routine practice session and before a major
competition. Each variable was measured as the change in the interval between heartbeats, or heart rate variability. The health professional wants to estimate the mean
change in the stress level before a major competition for each unit increase in the stress level before a routine practice.

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.