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Ksivusya [100]
3 years ago
11

(2,5) (7,9) (3,9) (5,8) is it a function

Mathematics
1 answer:
NeX [460]3 years ago
4 0

Answer:

(2,5) (7,9) (3,9) (5,8)

The relation is a function.

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A rental car company has noticed that the distribution of the number of miles customers put on rental cars per day is skewed to
kodGreya [7K]

Using the Central Limit Theorem, the correct option is:

(c) Average number of miles put on a rental car per day across 25 customers.

--------------------------

The Central Limit Theorem states that, for a normally distributed variable X, with mean \mu and standard deviation \sigma, the sample means of size m are approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

  • The interpretation related to this problem is that the larger the sample size, the smaller the standard deviation.
  • Thus, among the options, the largest sample is 25, thus, option c will have the smallest standard deviation.

A similar problem is given at brainly.com/question/23088374

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2 years ago
From the height of 30 meters above sea level of a cliff, a ship is sighted due west. The angle of depression is 20How far from t
Igoryamba

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9470m above the sea level.

Step-by-step explanation:

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3 years ago
Rewrite the radical expression as an exponential expression, and then simplify.
serg [7]
The third answer option is correct.  sqrt(x) = x^(1/2).  So sqrt(121) = 121^(1/2).
7 0
3 years ago
Read 2 more answers
Required
snow_lady [41]

Answer:

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5 0
3 years ago
Maria want to make a footstool in the shape of a cylinder, as show below. She wants to fill the footstool with foam and cover it
dexar [7]

Answer:

She'll need 8143 cubic inches of foam and 1,809.6  square inches of fabric.

Step-by-step explanation:

Assuming you want to know how much foam and fabric she will need...

First the foam... so we need to determine the volume of that footstool.  The Volume of a cylinder is given by:

V = π * r² * h

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V = π * 12² * 18 = π * 144 * 18

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Now for the fabric... we'll assume Maria wants to cover the side of the stool and the top, but not the bottom.

The side of the stool is basically a rectangle of width of 18 inches and a length of the circumference of the base of the stool.  The circumference is given by: C = 2 π * r of course, so C = 24π = 75.14 inches.

So the lateral surface of the cylinder is:

LS = 18 * 75.14 = 1,357.2 sq inches.

Then we need to calculate the area of the top... which is easy:

A = π * r²  = π * 12²  = 144 π = 452.4 sq inches

So, to cover the lateral side of the footstool and its top, she needs to use:

TA = 1,357.2 + 452.4 = 1,809.6 sq inches of fabric.

8 0
3 years ago
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