Answer:
x=7/4
Step-by-step explanation:
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<span>9x^2 -24x +16 can be factored into (3x-4)</span>²
the length of each side is 3x-4
115 degrees because there are 180 degrees in a triangle so let the missing angle in the trinagle be x. Then we have x+75+40=180. Solving for x and subtracting that from 180 (supplementary angles) we get 115 degrees.