Thresa wants new carpeting for her family room. her family room is 8 meter by 10 meter rectangle. how much carpeting doea she need to buy to cover the entire family room.

  80 m²

Step-by-step explanation:

If we assume the carpet is sold by the square meter, then we need to find the area of the family room in square meters.

The area of a rectangle is the product of its length and width, so Thresa's family room will have an area of ...

  (8 m)×(10 m) = 80 m²

Thresa needs to buy 80 m² of carpet to cover her family room.

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

step-by-step explanation:

through just a quick inspection, one can see that the graph of this cubing function starts in quadrant iii and ends in quadrant i.   when x = 0, y = 3, so the y-intercept is (0, 3).

if graphs are part of the problem statement, share them.   .