Awooden board that is 12 feet long is leaning against a wall perpendicular to the ground. the point at which the wooden board touches the wall is 10 feet above the ground. how far away is the base of the board from the bottom of the wall? round your answer to the nearest tenth.

6.6 feet.

Step-by-step explanation:

a^2 + 10^2 = 122

a^2 = 44

a =  Square root of 44

a = 6.6

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!