Step-by-step explanation:
it is 5/6 ..............
a(x+1)(x-1)+b(x-2)(x+1)+(x+1)^2=9x^2-x-10
(x+1)(a(x-1)+b(x-2)+(x+1))=(x+1)(9x-10)
a(x-1)+b(x-2)+x+1=9x-10
Now this equation is much simpler!
(a+b)x-a-2b+x+1=9x-10
(a+b)x-a-2b=8x-11
(a+b-8)x-a-2b-11=0
a+b-8=(a+2b-11)/x
I can't solve it 3 variables and 1 equations means infinite answers so yea.
Hello there!
The answer is:
.13
.31
1.3
3.1
think of it as half a circle which all equals up to 180 degrees
subtract 180 degrees with 62 degrees which 62 degrees is in the problem.
180-62=118 degrees
so your answer is C) 118 degrees
hope that helped you out:)
Please mark my answer brainiest
The answer to this problem is letter d
