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kkurt [141]
2 years ago
14

Help me please what's the answer

Mathematics
1 answer:
julia-pushkina [17]2 years ago
6 0

Answer:

Step-by-step explanation:

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Retrying this question because no one wanted to help on the last one.
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Answer:

.

Step-by-step explanation:

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If x is a whole number and 437 = (21 + x)(21 - x), then x =
IrinaK [193]
<span>437 = (21 + x)(21 - x), then x = 2, -2</span>
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3 years ago
The average waist size for teenage males is 29 inches with astandard deviation of 2 inches. If waist sizes are normallydistribut
choli [55]

Answer:

The z-score of a teenage with waist size 33 inch is 2

Step-by-step explanation:

Mathematically, the z-score can be calculated using the formula;

z-score = (x- mean)/SD

where mean = 29 inches , SD = 2 inches and x = 33 inch

Plugging these values, we have

z-score = (33-29)/2 = 4/2 = 2

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