1. Square root 17= 289, Square root 8= 64.
Least to greatest:
2.8, 3.9, 4.6, 64.00, 289.00
Least to greatest:
2.8, 3.9, 4.6, 64.00, 289.00
Lona read 40 books for the read-a-thon. She read 30% historical fiction and20% sports stories. The rest were mysteries. How many
1 answer:
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Answer:
x =
Step-by-step explanation:
2x-6+3=6x-5
2x-3=6x-5
2x-6x=-5+3
-4x=-2
x=.5or 1/2
Answer:
The minimum score of those who received C's is 67.39.
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
If 69.5 percent of the students received grades of C or better, what is the minimum score of those who received C's?
This is X when Z has a pvalue of 1-0.695 = 0.305. So it is X when Z = -0.51.
The minimum score of those who received C's is 67.39.