Hello :
<span>equation of a circle : </span> (x+7)² + (y+6)²=4
AC and AB are tangents to circle O, meaning that the angles C and B are right angles of 90 degrees. Since a quadrilateral's internal angles must sum up to 360 degrees, this means that A + B + C + O = 360
70 + 90 + 90 + O = 360
O = 110 degrees.
Since all the merchandise is 1/4 off, all we need to do to figure out the original price is to multiply $25 by 4.
24×4=100
The original price of her merchandise would be $100.
2) 2 2/5
3) 8/5
4) 6 1/2
5) 12
6) 2 1/10
Answer:
Miki had 288 stickers and Ken had 252 stickers.
Step-by-step explanation:
This question is solved using a system of equations.
I am going to say that:
Miki has x stickers.
Ken has y stickers.
The ratio of the number of Miki's stickers to the number of Ken's stickers was 8:7.
This means that
, that is:
, or 
After Miki gave Ken 18 of her stickers, they had the same number of stickers.
This means that:


Since 




And


Miki had 288 stickers and Ken had 252 stickers.