D should be correct
Sorry if it’s wrong
Answer:
The ladder should be 34 feet long.
Step-by-step explanation:
The height of the spotlight above ground = 30 feet
The base of the ladder will be = 16 feet from the base of house
We can easily assume this to be a right triangle with perpendicular as 30 feet and base as 16 feet and we have to find the hypotenuse.
Lets say the length of the ladder or hypotenuse is = x
We will apply Pythagoras theorem here.

=> 
=> 
=> 
So, x = 34
Hence, the ladder should be 34 feet long.
Answer:
-16.12
Step-by-step explanation:
Move the -3.1 to the other side so the variable s is isolated. Then on the right side, you will have -19.22 + 3.1. That equals <u>-16.12.</u> That is your answer.
Hope this helped! Please mark me as brainliest!