The average age of senators in the 108th congress was 62 years. if the standard deviation was 11.5 years, find the z-score corresponding to the oldest and youngest senators of age 82 and 40.

the z-score corresponding to the oldest senator of age 82 is

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

combine all like terms then its just a 2 step equation