Answer:
(1,5)
Step-by-step explanation:
The x coordinate of the midpoint is found by adding the x coordinates and dividing by 2
(6+-4)/2 = 2/2 =1
The y coordinate of the midpoint is found by adding the x coordinates and dividing by 2
( (8+2)/2 = 10/2 = 5
The mid point is (1,5)
Assuming you meant to write
![\dfrac{7x+42}{x^2+13x+42}](https://tex.z-dn.net/?f=%20%5Cdfrac%7B7x%2B42%7D%7Bx%5E2%2B13x%2B42%7D%20)
, then you can simplify this by first factoring the numerator and denominator.
![\dfrac{7(x+6)}{(x+6)(x+7)}](https://tex.z-dn.net/?f=%5Cdfrac%7B7%28x%2B6%29%7D%7B%28x%2B6%29%28x%2B7%29%7D%20)
Notice that (x+6) is common to the numerator and denominator. You can cancel this factor so long as you remember to exclude 6 from the domain.
Simplifying further, you have
![\dfrac{7}{x+7}](https://tex.z-dn.net/?f=%5Cdfrac%7B7%7D%7Bx%2B7%7D%20)
, where x ≠ 6, x <span>≠ 7.</span>
you would do 245 divided by 55 to find out how much hours she worked.