The results of a recent survey showed that the average cost to rent a car for a week is $276. If the standard deviation is $60. find the z- score for a weekly rental of $423.00?

18a

step-by-step explanation:

simply because it is. it's the highest common factor

2 x 503

step-by-step explanation:

its 1006

my guess is

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92