Answer:
1. 
2.
and 
Step-by-step explanation:
We have the expression
to find the solutions we have to clear
. Then,
Add 64 in both sides of the equation.

Now we have to re-write the equation:
⇒
Then,

Apply square root on both members

Now substitute back 
1. 
2. 
Solving for x:
1. 
2. 
Then the solutions for
are:

To find the x intercepts of the graph
we have to replace with y=0.
This means: 
We already found the solutions for the expression, but we have to consider only the real solutions.

Because in a graph we can't have imaginary solutions.
Then the x intercepts of the graph are:
and 
The graph of the function is:
Answer:
bhaar mein jao
Step-by-step explanation:
Tan(Angle) = Opposite leg / Adjacent leg
Tan(A) = 5/7
A = Arctan(5/7)
A = 35.54 degrees.