22. The area of a rectangular room is given by the trinomial ^2 + 3 − 40. What are the possible dimensions of the rectangle? Use factoring.

Step-by-step explanation:

x² + 3x - 40 = x² + 8x -5x - 5*8

= x*(x + 8) -5*(x+8)

=(x+8)*(x-5)

possible dimensions of the rectangle are: (x+8);(x-5)

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

yes

step-by-step explanation:

yes