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Luda [366]
3 years ago
8

. Show that square of any positive integer can not be of form 7q + 3 or 7q+5or 7q + 6, for any integer q

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
4 0

Step-by-step explanation:

7q + 3 or 7q+5 or 7q + 6

solve for q

7q + 3 =

7q + 3 -3 =-3

7q = -3

7q/7 = -3/7

q = -3/7

7q + 3 =

7q + 6 -6 =-6

7q = -6

7q/7 = -6/7

q = -6/7

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Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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Z with a pvalue of 100 - 8.08 = 91.92 = 0.9192, so Z = 1.4

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