Select ALL the correct answers.

Add 34+(−212) using the number line. Select the location on the number line to plot the sum.

nexus9112 [7]

Answer:

-1 3/4

Step-by-step explanation:

3/4 + (-2 1/2)

3/4 - 2

-1 3/4

5 0

3 years ago

The graph of f(x) = 2x + 1 is shown below. Explain how to find the average rate of change between x = 2 and x = 5. (10 points) G

levacccp [35]

First we need to find f(2) and f(5), which are 5 and 11 respectively; all you have to do is plug in 2 and 5.

Then, we use the following formula:

(f(b)-f(a))/(b-a),

where b and a are the largest and smallest x values respectively.

Finally, we plug our values in:

(11-5)/(5-2)=6/3=2

In fact, the average rate of change of any linear function is just the coefficient of the x term. Hope this helped!

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=1%5Cfrac%7B3%7D%7B10%7D" id="TexFormula1" title="1\frac{3}{10}" alt="1\frac{3}{10}" align="abs

vfiekz [6]

Answer:

$\frac{1}{30}$

Step-by-step explanation:

Change the mixed number into an improper fraction

1 $\frac{3}{10}$ = $\frac{13}{10}$ , hence

$\frac{13}{10}$ ÷ 39

To divide, leave the first fraction, change division to multiplication and turn 39 upside down, that is

= $\frac{13}{10}$ × $\frac{1}{39}$

cancel the 13 and 39 by dividing both by 13

= $\frac{1}{10(3)}$ = $\frac{1}{30}$

4 0

2 years ago

What is the median of this data set?<br> {29, 22, 23, 31, 29, 29, 22, 23}

Firlakuza [10]

Answer:

The median is 26

Step-by-step explanation:

A "median" is equivalent to when the terms are arranged in the proper order, whichever term is in the "middle".

So- first, arrange the terms in ascending order.

[22, 22, 23, 23, 29, 29, 29, 31]

There are an even number- eight- terms in total, so we will take the average of the two "middle" terms.

(29+23)/2; 29 and 23 are the "middle" terms, and there are two of them.

(52)/2 = 26

Therefore, the median is 26.

I hope this helped! :)

4 0

1 year ago

Read 2 more answers

ABC has coordinates of A (-8,-8), B (4,-2), and C (2,2). Find the coordinates of its image after a dilation centered at the orig

kumpel [21]

The coordinates of the image after dilation are

A (-12 , -12) , B (6 , -3) , C (3 , 3) ⇒ answer B

Step-by-step explanation:

A dilation is a transformation that produces an image that is the

same shape as the original, but in a different size

When you dilate a figure, with

The center of dilation is the origin
The scale factor of dilation is k

Then the coordinates of each point of the figure is multiplied by k

to find the image of the figure after dilation

∵ ABC has coordinates of A (-8 , -8), B (4 , -2), and C (2 , 2)

∵ ABC is dilated by scale factor 1.5

∵ The center of dilation is the origin

- Multiply the coordinates of points A, B, and C by 1.5

∴ The image of point A = (-8 × 1.5 , -8 × 1.5) = (-12 , -12)

∴ The image of point B = (4 × 1.5 , -2 × 1.5) = (-6 , -3)

∴ The image of point C = (2 × 1.5 , 2 × 1.5) = (3 , 3)

The coordinates of the image after dilation are

A (-12 , -12) , B (6 , -3) , C (3 , 3)

Learn more:

You can learn more about transformation in brainly.com/question/5563823

#LearnwithBrainly

5 0

2 years ago