The difference of the sample means of two populations is 34.6, and the standard deviation of the difference of the sample means is 11.9.
the 95% confidence interval lies between (a.-11.9, b.-23.8, c.-35.7, d.-45.4) and (a.+11.9, b.+23.8, c.+35.7, d.+45.4)

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation:

the answer is c

hope this !

equal to

step-by-step explanation:

66.666666667%

step-by-step explanation:

divide 150 by 100

divide 100 by 1.5

there you go!

decreased by 33.333333334%