1. Danny wants to have his bathroom floor re-tiled. The dimensions of the floor are (3x + 1) by (2x + 1). (5 marks)
a) Write a quadratic expression that represents the area of the floor (expand using
FOIL).
b) If x= 1 m, what is the area that needs to be re-tiled?
c) The tiles cost $5/m². How much will it cost Danny to re-tile his floor?

angle addition postulate

2x=56

step-by-step explanation:

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.

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%