To solve a square root, get the ^2 on one side and the 81 on the other side.
add 81 to both sides.
c^2 = 81
to clear the power of 2, take the square root of both sides.
c = + - sqrt81
c = + - 9
c = 9 and c = -9
Answer:
Slope: -4
Y-intercept: 5
Step-by-step explanation:
The slope goes down 4 and over one which means that the slope is -4.
When X is 0, Y is 5
Good Luck!!
Answer:
number 3
Step-by-step explanation:
angleNGL=~angleHGF
Answer:
or 
Step-by-step explanation:

Add
on both sides.


Combine like terms;

Use the quadratic formula;
a=4
b=17
c=12




or 