Answer:
Step-by-step explanation:
we have that
The formula for the surface area of the enclosed space is
Solve for P
That means ------> isolate the variable P
Subtract lw both sides
Multiply by 2 both sides
Divide by h both sides
Rewrite
a music store brought a CD set at a cost of $10. When the store sold the CD set,the precent markup was 10%. Find the selling pri
2 answers:
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Answer:
15.87%
Step-by-step explanation:
Given that:
The mean (μ) = 1000 hours, the standard deviation (σ) = 100 hours.
The z score provides a means of measurement in statistics to determine the variation of a raw score from the mean. The z score is given as:
To find that a randomly chosen light bulb will last less than 900 hours:
Therefore, P(x < 900) = P(z < -1) = 0.1587 = 15.87%