(I got my answer as 22, and that was correct, but I had completely forgotten how I did it. Help please)
distribution with a mean of 4.5 minutes and a standard deviation of 1 minute. Find the cut-off time which
75.8% of the college students exceed when trying to find a parking spot in the library parking lot.
A) 4.8 min
B) 5.3 min
C) 5.2 min
D) 5.0 min
Answer:
A
Step-by-step explanation:
to
Answer:
Step-by-step explanation:
B
ANSWER
EXPLANATION
The given radical expression is
We rationalize the denominator to get:
This implies that:
We expand using the distributive property and also applying difference of two squares on the denominator.
This will give us,
b) How many veterans are represented by the histogram?
The bank has 15 quarters and 12 dimes.
This problem can be solved using systems of equations. Let's define the variables: let D represent the number of dimes and Q represent the number of quarters.
From the problem, we have two equations:
Multiply the first equation by 0.10 to make the coefficients of D the same in both equations:
Subtract this from the second equation to find Q:
Substitute Q = 15 into the first equation to find D:
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