You purchased paint for the rooms in your house. you have 1.5 cans of paint left. you painted 4 rooms and each room required 2 cans of paint. you spilled 1/2 of a can of paint. how many cans of paint did you purchase?

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.