In the figure, aa′ = 33 m and bc = 7.5 m. the span is divided into six equal parts at e, g, c, i, and k. find the length of a′b.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?