Ok so first, you can take out a greatest common factor, which is 2
You’ll be left with 2(x^2-3x-20)
I factored from there
Here’s my work
Hope this helps :)
Answer:
940
Step-by-step explanation:
<em>To find the original price of something that been discount do the following:</em>
- <em>Subtract the discount from 100 to get the percentage of the original price.</em>
- <em>Multiply the final price by 100.</em>
- <em>Divide by the percentage in Step One.</em>
<em>Or we can do the following:</em>
<em>We shall consider the original price as x; hence the discount can be considered as (x−263.20). We can write the equation:</em>
<em>x · 72/100=x - 263.20</em>
<em>x · 18/25 = x - 263.20</em>
<em>Multiply both sides by 25</em>
<em>18x = 25(x - 263.20)</em>
<em>Open the brackets.</em>
<em>18x = 25x-6580</em>
<em>Add 6580 to each side.</em>
<em>6580 +18x = 25x</em>
<em>Subtract 18x from each side.</em>
<em>6580 = 7x</em>
<em>Subtract 7x from each side.</em>
<em>x = 940</em>
<em>Check Answer:</em>
<em>940 * 72% = 676.80</em>
<em>940 - 676.80=263.20</em>
<em>Hence, the regular price is 940.</em>
<em />
<u><em>~lenvy~</em></u>
You have to know the coordinates of the center and the radius.
refer to this website for more information:
http://www.mathwarehouse.com/geometry/circle/equation-of-a-circle.php
The answer to this question would be -1.
<span>1/2 + 1/2 + 9 - 11
1/2 + 1/2 = 1
1 + 9 = 10
10 - 11 = -1
Therefore, this will equate to -1.</span>
Answer:
2 units because there is no change in size.