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Alchen [17]
3 years ago
6

(x-5)^2=81, solve for x

Mathematics
1 answer:
prisoha [69]3 years ago
4 0

Answer:

  x ∈ {-4, 14}

Step-by-step explanation:

Take the square root and add 5.

  (x -5) = ±√81 = ±9

  x = 5 ± 9

  x ∈ {-4, 14} . . . . . . x may be either of -4 or 14

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2 years ago
PLEASE ANSWER QUICK A manufacturing facility pays its employees an average wage of $4.50 an hour with a standard deviation of 50
evablogger [386]

Answer:

B.77.4%

Step-by-step explanation:

Mean wage (μ) = $4.50

Standard deviation (σ) = $0.50

For nay given salary X, the z-score is given by:

z=\frac{X-\mu}{\sigma}

For X = $3.75, the z-score is:

z=\frac{3.75-4.50}{0.50}\\z=-1.5

For X = $5.00, the z-score is:

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A z-score of -1.5 corresponds to the 6.68th percentile, while a score of 1 corresponds to the 84.13th percentile. Therefore, the percentage of workers getting paid between $3.75 and $5.00 an hour is:

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8 0
3 years ago
Two angles of a triangle have the same measure and the third one is 18 degrees greater than the measure of each of the other two
kvv77 [185]

Answer:

72°

Step-by-step explanation:

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4 0
2 years ago
15
Butoxors [25]

Step-by-step explanation:

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7 0
2 years ago
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andriy [413]

Answer:

c

Step-by-step explanation:

Since the figures are similar then the ratios of corresponding sides are equal, that is

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3 0
3 years ago
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