The midpoint would be (13/2 , 4)
Can't see the work send a Bette pic or write the question
Use the Pythagorean Theorem: a^2 + b^2 = c^2. a and b are the legs, and c is the hypotenuse. Plug in your numbers: 9^2 + b^2 = 12^2
81 + b^2 = 144. Subtract 81 from 144 : b^2 = 63. Now take the square root of 63, which is 7.9. 7.9 ft is your answer.
1.7 a+ 0.3a =45
2a =45
a = 45/ 2
a= 27.5
???
A function is "a expression or equation involving one or more variables".
For example:
(x² + 7a) is a function.
hope this helps