Answer:
x=5
Step-by-step explanation:
A number to the fourth power decreased by 600 is 25
x^4-600=25
Step 1- Add To Both Sides
x^4-600=25
+600+600
A number to the fourth power decreased by 600 is 25
Step 2- Find square root
x^4=625
x=5
An integer that would work is 14 so -3 + 14 = -11
Since this is a triangle all the angles within the triangle add up to 180 degrees so....
82+(9x+2)+(7x)=180
82+2+16x=180
16x+84=180
16x=96
X=6
If we plug in X to angle(9x+2) and angle (7x) we will get 56 and 42. We can get angle 2 by subtracting 180-42 which is 138
FINAL ANSWER: 138 degrees