Please help, I don’t understand this

Mathematics

1 answer:

kondor19780726 [428]3 years ago

8 0

Answer:

same here

have a nice day

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If ab and cd are congruent what is the measure of

sweet-ann [11.9K]

Answer:

25°

Step-by-step explanation:

the arcs are congruent, and the radii are the same length, as it would be from any other point in a circle. this means that the angle must be the same.

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3 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:

$z=\frac{5.00-4.50}{0.50}\\z=1$

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:

$P=84.13-6.68\\P=77.45\%$