<span>1)
5/6 - fraction
</span><span>3/7 - fraction
(5/6)÷(3/7)=(5*7)/(6*3)=35/18=1 </span>

<span>2)
</span><span>5/6÷3/7=5/6/3/7=5/126</span><span>
</span>
The x intercepts are points where the graph cut the x axis. the x intercept are 2 and 1, when y is equal to zero. ( use factorization method) <span />
Since

the domain of f(x) is the set of non-negative integers, because we can't feed a square root with negative inputs. So, you couldn't comput f(-9)
Unless you're allowed to use complex numbers, in that case we have

Which evaluates to

Answer:
40
Step-by-step explanation:
angle AOB= 2x=80
x=80/2
x=40