A triangle is rotated 90° about the origin. Which rule describes the transformation? O (x, y) (-x,-y)
O (x, y) (-y, x)
O (x, y) (-y,-x)
O (x, y) → (y, -x)

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.

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.

£100.80 divided by 14 equals 7.2 how would we put this as money