C = 9 m the perimeter is all the sides added together you have 9 +8 that is 17 add another 9 and that equals 26 which is the perimeter.<span />
Answer:
I would use Pythagorean theorem To find the lengths and just plug in numbers from the answer choices.
Step-by-step explanation:
Answer:

Step-by-step explanation:
9x² + 6x – 17 = 0
Apply the quadratic formula

a = 9; b = 6; y = -17







The graph below shows the roots at x₁ =1.081 and x₂ = -1.748.