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2 years ago

- Lulah is buying beach balls for her beach

Mathematics

1 answer:

Elan Coil [88]2 years ago

5 0

The set of the ordered pairs is a {(1, 6), (2, 12), (3, 18), (4, 24)}.

According to the statement

We have to find that the set of the ordered pairs.

So, For this purpose, we know that the

A function is a set of ordered pairs in which no two different ordered pairs have the same x -coordinate.

From the given information:

The package contains 6 beach balls And

the number of packages x for a total of 1, 2, 3, and 4 packages.

Then

(packages, balls) = (1, 6)

Multiplying by 2, 3, and 4, we find the set of ordered pairs to be ...

{(1, 6), (2, 12), (3, 18), (4, 24)}

So, The set of the ordered pairs is a {(1, 6), (2, 12), (3, 18), (4, 24)}.

Learn more about ordered pairs here

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A sample was taken of the salaries of four employees from a large company. the following are their salaries, in thousands of dol

Free_Kalibri [48]

For given sample of salaries of four employees, the variance of their salaries is: 26 thousands of dollars

The formula for the variance is,

$S^2=\frac{\sum (x_i - \bar{x})^2}{n-1}$

where,

$S^2$ = sample variance

$x_i$ = the value of the one observation

$\bar{x}$ = the mean value of all observations

n = the number of observations

For given question,

n = 4

First we find the mean of their salaries.

(33 + 31 + 24 + 36 ) / 4 = 31

So, $\bar{x}=31$

Using the formula for variance ,

$S^2=\frac{(33-31)^2}{4-1}+\frac{(31-31)^2}{4-1}+\frac{(24-31)^2}{4-1}+\frac{(36-31)^2}{4-1}\\\\ S^2=\frac{4}{3} + \frac{0}{3} + \frac{49}{3} + \frac{25}{3} \\\\S^2= \frac{4+49+25}{3}\\\\S^2=\frac{78}{3} \\\\S^2=26$

Therefore, for given sample of salaries of four employees, the variance of their salaries is: 26 thousands of dollars

Learn more about the variance here:

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7 0

2 years ago

Apply the distributive property to: 2(6*+4)

riadik2000 [5.3K]

Step-by-step explanation:

12*+8

hope this help if u need anymore help just ask

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3 years ago

*TIME(65 MILES PER HOUR)," "TIME(65)," and "T(65)" all represent which of

lara31 [8.8K]

Answer: A. The distance traveled at 65 miles per hour for a certain amount of time.

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Speed rate = distance/ time

Isolating distance:

Distance = speed rate x time

So, the time (T) multiplied by the speed rate (65) represents the distance traveled at 65 miles per hour for a certain amount of time.

In conclusion, the correct option is A.

Feel free to ask for more if needed or if you did not understand something.

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3 years ago

Look at me, aren't I “acute"! With two of my angles

ExtremeBDS [4]

Answer:

a acute angle

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3 years ago

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True or false: If I read information on the Internet and put it completely in my own words I can use that information in my pape

stepan [7]

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3 years ago