An equilateral triangle is (sometimes/always/ never) similar to a scalene triangle, because we can ( sometimes/always/ never) map one onto the other using only dilations and rigid transformations.

never

Step-by-step explanation:

An equilateral triangle is not similar to a scalene triangle because an equilateral triangle has all equal sides and the same angle measures, and a scalene triangle's sides are all different measures and the angles don't measure the same angle.

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.