1-D, 2-C, 3-A, 4-C, 5-B, 6-A, 7-D, 8-B
The answer is 84 because of process priority
9x= x+4
Subtract x on both sides to balance the equation.
8x= 4
Divide 8 into both sides. (the inverse of multiplication)
x= 1/2
We can check this by plugging in x.
9(.5)= .5+4
4.5= 4.5
I hope this helps!
~kaikers
Rate of change
find a2 and a4
a2=27(1/3)^(2-1)=27 times 1/3=9
a4=27(1/3)^(4-1)=27 times 1/27=1
rate of change=(a4-a2)/(4-2)=(1-9)/(4-2)=-8/2=-4
average rate of change is -4
Sum of acute angles are always 90 degree.
Here, ratios = 7 + 11 = 18
Value of 1 ratio = 90/18 = 5
So,acute angles are: 7(5), 11(5) = 35, 55
In short, Your Answer would be 35, 55, 90
Please re-look your options
Hope this helps!
