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2 years ago

Find the lowest common denominator and solve

Mathematics

1 answer:

irina [24]2 years ago

4 0

Answer:

the correct answer is d

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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:

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

The answer is alternative B.77.4%

8 0

2 years ago

For the following problem, assume that all given angles are in simplest form, so that if A is in QIV you may assume that 270° &l

d1i1m1o1n [39]

Answer:

Step-by-step explanation:

Given that angle A is in IV quadrant

So A/2 would be in II quadrant.

sin A = -1/3

cos A = $\sqrt{1-sin^2 A} =\frac{2\sqrt{2} }{3}$

(cos A is positive since in IV quadrant)

Using this we can find cos A/2

$cosA = 2cos^2 \frac{A}{2} -1\\Or cos \frac{A}{2} =-\sqrt{\frac{1+cosA}{2} } =-\sqrt{\frac{3+2\sqrt{2} }{6} }$

3 0

2 years ago

Ill mark brainlist plss help

finlep [7]

Answer: D. 25 in.^2. plz mark me brainliest

Step-by-step explanation: 5x10=50/2=25 so 25. plz mark me brainliest

4 0

2 years ago

HELP PLZ I AM STUCK!!!!!!!

raketka [301]

So -2 is the domain so it is 2 left.

Then -3 is the range so you go 3 down.

so line M is the answer

3 0

2 years ago

Read 2 more answers

What rectangles below are similar? Explain why.

GrogVix [38]

What rectangles?
attach a link or pic

3 0

2 years ago