If it helps at all there is this graphing webpage called desmos.com it helps with tables and a lot of graphing stuff.
Answer:
9) C: x=4, y=2rt3
10) A: XY/YZ
11) A: XY/XZ
Step-by-step explanation:
9 - that is a 30, 60, 90 triangle so the ratios will be a, root3a, 2a
10 - tan = opposite / adjacent
11 - cos = adjacent/hypotenuse
Here it is
67^2 = 67*67 = 4489
4 is the answer to the sum 13
The right chose is -9x+3= the others are not hope this helped
