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3 years ago

2. An electronics store sold 1,500 CD's this year. The previous year, the store sold 990

Mathematics

2 answers:

Vera_Pavlovna [14]3 years ago

8 0

Answer:

52%

Step-by-step explanation:

First, find the difference between this year's sales and the previous'. 1500-990=510.

Now we can divide 990 by 510 to find the percent increase. 510/990=0.515151515152, or 52%.

elena-14-01-66 [18.8K]3 years ago

8 0

The answer for this is 52%.

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Let, coordinate of point A' is (x,y).

Since, A' is the symmetric point A(3, 2) with respect to the line 2x + y - 12 = 0.

So, slope of line containing A and A' will be perpendicular to the line 2x + y - 12 = 0 and also their center lies in the line too.

Now, their center is given by :

$C( \dfrac{x+3}{2}, \dfrac{y+2}{2})$

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Also, C satisfy given line :

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Answer:

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Step-by-step explanation:

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$a = \frac{s}{2 * tan (\frac{180}{n} )}$

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$a = \frac{12}{\frac{2\sqrt{3} }{3}}$

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