Which of the points is not one of the vertices (s, t) of the shaded region of the set of inequalities shown below?
s< 30 - 31
s> 15 - 1
s 25-1
S> 0
1>0
A. (22.5, 2.5)
B. (15,0)
C. (7.5, 7.5)
D. (7.5,0)

Which shows the image of rectangle abcd after the rotation (x, y) → (–y, x)?

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

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?