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3 years ago

What is the first quartile of the data displayed in this box-and-whisker plot?

Mathematics

2 answers:

77julia77 [94]3 years ago

8 0

Answer:

99.5

Step-by-step explanation:

First quartile is the second largest value in these five

Ksenya-84 [330]3 years ago

6 0

Answer:

99.5

Step-by-step explanation:

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Find the area of the trapezoid.

vekshin1

Answer:

Step-by-step explanation:

7 - 5 = 2

triangle = bh/2

triangle = 2(3) / 2

triangle = 3

rect = bh

rect = 3 x 5

rect = 15

trapezoid = 15 + 3

trapezoid = 18

8 0

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:

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

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

3 years ago

Need help with task! Show work if possible~~

Inessa [10]

Answer:

Please see attached picture for full solution.

Sorry, I'm not sure how to do Q7 :(

6 0

3 years ago

Prove that 3:8 is equivalent to 12:32

Julli [10]

3 times 4 is equal to 12
8 times 4 is equal to 32
therefore 3:8 is equal to 12:32
hope this helps

3 0

3 years ago

What is the value for the missing angle ??

allsm [11]

Answer: 9 inches.
Do the pythagorean theorem to find your answer.
Formula: a^2 + b^2 = c2
12 = b
15 = c
a^2 + 12^2 = 15^2
Simplify the equation
a^2 + 144 = 225
Subtract 144 on both sides.
a^2 = 81
Square root of 81 is 9.

8 0

2 years ago