Answer:
57.885
Step-by-step explanation:
For such calculations a probability calculator is very helpful. The one in the attachment shows the 87th percentile to be 57.885.
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A table of the standard normal distribution will tell you the 87th percentile corresponds to a z-value of 1.12639. Then the X value is ...
X = Zσ +μ = 1.12639(7) +50 = 57.885
The series is a geometric series and the sum of the first 8 terms of the series 48, 60, 75 is 952.32
<h3>How to determine the sum of the first 8 terms?</h3>
The series is given as:
48, 60, 75
The above series is a geometric series with the following parameters:
First term, a = 48
Common ratio, r = 1.25
The sum of n terms is:
So, we have:
Evaluate
Hence, the sum of the first 8 terms of the series is 952.32
Read more about series at:
brainly.com/question/6561461
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STEP BY STEP:
13x - 8 + 7x – 2 = 11+ 6x -- 14x – 5
Combine like terms
20x-8-2 = 20x+11-5
20x-10 = 20x+6
Subtract with -20x on both sides and the result is:
The answer is NO SOLUTION
Answer:
2z+3
Step-by-step explanation:
Combine the z terms.
now we have (5-3)z+3
Subtract 5-3 now its two.
2z+3
Factors of 45 which add up to 12 are 9 and 3