What is the value of x if (13, 84, x) is a pythagorean triple? 85 86 94 97

Aquadratic function f(x) has a turning point at (3,-7). what is the turning point of -f(x)?

Tiara buys the pizza shown below: a circular pizza is shown. the edge of one slice is marked ab. what does the curve ab represent?

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.