What does x ^2 + y^2 = 9 mean? what about x ^2 + y ^2 = 0 ? can a circle have a radius of − 3 ? why or why not?

Answer

since all the terms are squared so there can be a negative number

but in number line

...... -4,-3,-2,-1,0,1,2,3.......

as we know negative sign indicates only the direction so -3 means in which coordinates will it lie.

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it means the origin is (0,0) and radius 3

answer:   expression= p+p*d%

price reduction + sale price = $625

sale price: $p+$p*d%

where d% is the percentage of discount

step-by-step explanation:

original price = p

price went down by $150 price reduction $p*d%

sale price= $ 475

therefore the price before sale is: $625

and the expression that shows the price before sale is: p+p*d%

the median is   36 orr sum like dat

step-by-step explanation: