Answer:
1
Step-by-step explanation:
A solution to a system of equations is the point where the 2 lines meet.
Answer:C
Step-by-step explanation:
C. 25
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Divide 400/100=4
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Than divide 4/100
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Answer: The proportion that will qualify is 0.0314 or 3.14%.
First, we need to find the z-score of a time of 128 seconds. To do this, we find the difference of the mean and score and divide by the standard deviation.
(128 - 141) / 7 = -1.86
Now, use a standard normal distribution table to determine the percent below a z-score of -1.86. That value is 0.0314 or 3.14%.
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