The mean score on a calculus exam was 40 and the standard deviation was 5. The teacher decided to double everyone's score, and then added 7 points.

What are the values of the mean and standard deviation of the distribution of transformed exam scores?

mean = 80 and standard deviation = 5

mean = 80 and standard deviation = 10

mean = 87 and standard deviation - 5

mean 87 and standard deviation =10

mean = 87 and standard deviation = 17
mean

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

go on the tube you might find some information there

345

step-by-step explanation:

translate k to n and reflect across the line containing jk.