Which formula will determine the radius of the water
reservoir? rounded to the nearest hundredth of a foot, what
is the radius of the water reservoir?
you work for a store that sells built-to-order water reservoirs.
your manager asks you to visit a small business to measure
a damaged conical water reservoir for replacement. the
label on the water reservoir indicates only the following
specifications: the height is 8.5 feet, and, when full, the
water reservoir holds 225 cubic feet of water.
or varmi r = 0.56 feet
or 3v r= 1.69 feet
ra r = 5.03 feet
@r r = 8.22 feet
rav. van (3), r = 8.71 feet

answer: 0.64

step-by-step explanation:

step-by-step explanation:

irst, find the z score of a score of 80. this is given by the formula z = (x-u)/o, where x is the score, u is the mean, and o is the standard deviation. this gives

z = (80-78)/12 = 1/6 = .1667

now, find what percentile a z score of 1/6 correlates to in the normal distribution.

a z score of 1/6 = .1667 is equivalent to the 56.36th percentile of the distribution. so the probability a score is over this is 1-.5636 = .4364

the mean of a sample mean is equal to the original mean. however, the standard deviation of a sample mean is equal to the original standard deviation divided by the square root of n (sample size). so the new standard deviation is 12/sqrt(16) = 3.

the new z score is 80-78/3 = 2/3 = .667. this is equivalent to the 74.86th percentile. so the probability that the mean will be greater than this score is 1-.7486 = .2514.

good luck on ur quiz test or homework. have a good day : )