A student took two national aptitude tests. The mean and standard deviation were 475 and 100, respectively, for the first test. The mean and standard deviation were 30 and 8, respectively, for the second
test. The student scored 600 on the first test and 42 on the second test. Use z-scores to determine on
which exam the student performed better relative to the other tests takers.

yo answer should be 6 if im not mistaken

step-by-step explanation:

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !

70

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.