Answer:
The value of x =10°
Step-by-step explanation:
Check attachment for solution.
Triangle theorem: the sum of the opposite interior angle is equal to the exterior angle.
<JKL+<LJK=<KLM
2x+14+3x+15=7x+9
Collect like terms
2x+3x-7x=9-14-15
-2x=-20
Divide both side by -2
x=10°
Minutes is the x axis and the yards the y axis
3,17
(a,7) lies on the equation of 5x-y=8, that means we solve for x when y=7.
5x-(7)=8
5x=8+7=15
x=3
=>
a=3
Take derivitive to find slope

at x=2




so the slope of f(x) at the point (2,24) is 20
use point slope form
the equation of a line that passes through the point

and has a slope of m is

we are given that the slope is 20 and the point is (2,24)
the equation is

simplify into different form yourself if needed
I think if you guess there's a 50/50 chance of you passing or failing. So if I were you, I would work them out. Hope I helped!