Answer:
x= 13 degrees
Step-by-step explanation:
This is a 90 degree angle. We can create an equation to find x
68+x+9= 90
77+x= 90
-77 -77
x= 13 degrees
Hope this helps!
Answer:
The total number of ways to select 2 CDs from 8 CDs is 28.
Answer:
The coefficient of x is 22.
It's 9! or 9*8*7*6*5*4*3*2*1 which is equal to 362,880
