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garik1379 [7]
3 years ago
12

What is the difference??

Mathematics
1 answer:
aleksley [76]3 years ago
3 0
9/x² - (2x+1)/8x =
72/8x² - (2x²+x)/8x² =
(72-2x²-x)/8x²=
(-2x -x+72)/8x². answer C. C. C
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The photo is the question
kakasveta [241]
Multiply 20 by 37. This is 740.  Divide this by 2, this is 370.  She will donate $370 to charity
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3 years ago
What is the change in y- values for every two units of x-values?
schepotkina [342]

Answer:

The graph of y\:=\:\frac{1}{2}x  is also attached below, which indicates that there is a change of only one unit on the y-axis for every two units of x-values.

Step-by-step explanation:

When there is a change in x values, it is basically a horizontal change. horizontal change between two values is also called the run.

And the vertically change between two values is also called the rise.

The slope is basically the ratio of the vertical (rise) and horizontal (run) changes between two points on a line.

For example, consider the equation

y\:=\:\frac{1}{2}x

\mathrm{Slope\:of\:}\frac{1}{2}x:\quad m=\frac{1}{2}

Here fore every two units of x-values, one units are moved on the y-axis.

In other words, there is a change of only one unit on the y-axis for every two units of x-values.

The graph of y\:=\:\frac{1}{2}x  is also attached below which is showing this.

5 0
3 years ago
The marketing department of a sports supply store wants to estimate the percentage of adults in the town who belong to a gym.
velikii [3]
A) If you only sample people in a sports supply store, your sample will be biased.  People in a sports supply store are more likely to be people that belong to a gym.
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C) Taking a random sample of people in town is a good way to get a non-biased sample.  They are not necessarily predisposed to answer your question one way or another.
D) For the same reason as choice A, this is a biased sample.

C is the best choice.
4 0
2 years ago
Which of the following shows how the expression below can be factored using the
tino4ka555 [31]

Answer:

B

Step-by-step explanation:

Given

6p³ - 12p² + 9p ← factor out 3p from each term

= 3p(2p² - 4p + 3) → B

6 0
3 years ago
What is 1and13/60 simplified
Anastasy [175]

Answer: It's Already simplified!

6 0
3 years ago
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