What is the value of y if (3,y) is a solution to the equation 5x-3y=18

(x, y) → (3, y) → x = 3

Put the value of x to the equation:

5(3) - 3y = 18

15 - 3y = 18     subtract 15 from both sides

-3y = 3    divide both sides by (-3)

y = -1

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

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.