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3 years ago

Need help ASAP What are the domain and range of the function

Mathematics

1 answer:

valina [46]3 years ago

7 0

The line seemingly keeps going infinitely in both directions so y,xER

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The table below shows the number of cups of coffee people drink a day

Effectus [21]

The mean of a distribution is the sum of the data elements divided by the count of the dataset.

<em>The mean of the distribution is 4</em>

The complete table is given as

$\left[\begin{array}{cc}People & Frequency &0 - 2 & 5 & 3 - 5 & 25 & 6 - 8 & 5\end{array}\right]$

The complete question requires that, we calculate the mean of the dataset

First, we calculate the class midpoint

This is the average of the class interval

<u />

<u>For interval 0 - 2, </u>

$x_1 = \frac{0 + 2}{2} = 1$

<u>For interval 3 - 5,</u>

$x_2 = \frac{3 + 5}{2} = 4$

<u>For interval 6 - 8</u>

$x_3 = \frac{6 + 8}{2} = 7$

So, the table becomes

$\left[\begin{array}{ccc}People & x & Frequency &0 - 2 &1 & 5 & 3 - 5 & 4& 25 & 6 - 8& 7 & 5\end{array}\right]$

The mean is then calculated as:

$\bar x = \frac{\sum fx}{\sum f }$

This gives

$\bar x = \frac{5 \times 1 + 25 \times 4 + 5 \times 7}{5 + 25 + 5}$

$\bar x = \frac{140}{35}$

$\bar x = 4$

Hence, the mean of the distribution is 4

Read more about mean at:

brainly.com/question/17060266

4 0

2 years ago

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ABDE is a rectangle on coordinate axes, the sides of the rectangle are parallel to the axes,

Hitman42 [59]

The coordinates of B and D are the location of the vertices B and D in the rectangle

The coordinates of B and D are (55, 30) and (55, 14)

<h3>How to determine the coordinates of B and D?</h3>

From the figure of the rectangle, we have:

A = (25,30)

C = (40, 22)

Point B has the same y-coordinate as point A

So, we have:

B = (x, 30)

The x-coordinate is then calculated as:

Bx = 2Cx - Ax

This gives

Bx = 2*40 - 25

Bx = 55

So, the coordinates of B are:

B = (55, 30)

Point D has the same x-coordinate as point B

So, we have:

D = (55, y)

The y-coordinate is then calculated as:

Dy = Cy - (By - Cy)

This gives

Dy = 22 - (30 - 22)

Dy = 14

So, the coordinates of B are:

D = (55, 14)

Hence, the coordinates of B and D are (55, 30) and (55, 14)

Read more about rectangles at:

brainly.com/question/10737082

8 0

2 years ago

A community center offers yoga classes for $8 per month plus an additional $0.25 per center floor mat used.

MArishka [77]

Answer: the answer is 64 1/3

Step-by-step explanation:

4 0

3 years ago

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PLEASEEEE HELP!!!☹️☹️ i will mark brainliest

Nikitich [7]

Z=110 because if you add up all the angles inside the triangle it would =180 and take the angle by z and subtract it from 180 you get your answer

6 0

3 years ago

(pls this is the last one)Use the image below to find the experimental probability of rolling a number less than 7.

Leni [432]

Answer:

$\frac{6}{7}$

Step-by-step explanation:

For this problem, the fraction is out of 7 so all the values less than 7 is 1-6. So the probability is going to be $\frac{6}{7}$

Hope this helps.

6 0

3 years ago

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