The point P
is on the unit circle. If the y-coordinate of
P
is
−
3
5
, and
P
is in quadrant IV , then

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Solve the formula ax+ by = c for x.

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?