19. LANDSCAPING Rashard is building a rectangular patio. If t2 + 19t + 84
4t - 4
represents
22-2
the length of the patio and
represents the width, write and simplify an
t2 + 9 + 14
expression that represents the area of the patio.
Lesson 9-1 . Multiplying and Dividing Rational Expressions 4

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

How do you write something in scientific notation?