HELP PLEASEEE, I REALLY DO NOT UNDERSTAND THESE QUESTIONS. THANK YOU HELP IS VERY MUCH APPRECIATED!!!

Mathematics

1 answer:

MAVERICK [17]3 years ago

5 0

Answer:

a) $40920

b) $38500

Step-by-step explanation:

Given:

5 employees,

Mean = $40300

Median = $38500

Min = $32000

If he lowest paid employee gets a $3100 raise, then his salary becomes

$32000+$3100=$35100

a) If the mean was $40300, then the sum of 5 salaries is

$\$40300\cdot 5=\$201500$

After raising the lowest salary the sum becomes

$\$201500+\$3100=\$204600$

and new mean is

$\dfrac{\$204600}{5}=\$40920$

b) The lowest salary becomes $35100. It is still smaller than the median, so the new median is the same as the old one.

New median = $38500

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A designer wants to create a whisper chamber in the shape of an ellipse. He has a warehouse space with a longest length of 50 ya

Zanzabum

Answer:

22.9 yards

Step-by-step explanation:

Since b² = a² - c² where a = vertex of major axis, 2a = 50 yards the length of the major axis. So , a = 50/2 = 25 yards. c = focus of chamber = 10 yards from center and b = vertex of minor axis.

So, b = ±√(a² - c²)

= ±√(25² - 10²)

= ±√(625 - 100)

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Step-by-step explanation:

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