LESSON 5

Powers & Roots

Keys:

x x x ^Shift

Try this

1. Find the size of tarp needed to cover an entire baseball infield.

A = s A = 90 90’ 90’

Enter 90 x = Display 8100

baseball field

2. Find the length of a side of a square room if 36 square feet of carpet would cover the floor.

x = 36 = x

Enter 36 ^Shift x = Display 6

Lesson 5 continued

Try this

3. Find: 2

Enter 2 x 6 = Display 64

4. Find: + +

Enter 2 ^Shift x + 3 ^Shift x + 5 ^Shift x =

Display: 5.3823

Using Pythagorean Theorem

Try this

5. If a ladder is placed 6 ft from a house and 8 ft up the side of the house. How long must the ladder be?

6 + 8 = c

Enter: 6 x + 8 x = ^Shift x = Display: 10