Andrew is wanting to build a slide for his daughter's tree house in the backyard. The tree house is approximately 5 feet off the ground and he wants the slide to have a 30 degree angle with the ground. He will need to by 10 ft of sliding board.
A can be converted since it is a repeating decimal
ANSWER
D. 13
EXPLANATION
We have

To find

means we want to find an x-value whose image is 3.

We cross multiply,

Expand:

Combine like terms,



24 units by 15 units. Divide the original feet by 5 to get the units.