(4x + 2) is equal to 150 because they are vertical angles. When two lines intersect, on the opposite sides of the x like these are will be equal to one another. So let’s make them equal to each other.
4x + 2 = 150
Subtract 2
4x = 148
Divide by 4
x = 37
So it will be A
17)
The two angles added up with each other
34 + 146 = 180
Since these two add up to 180 degrees, they would be supplementary angles.
So, H
18)
The two angles will make a 90 degree angle (as shown with the little box formed in the corner)
When angles add up to make 90 degrees, they will be complimentary angles.
The function: f ( x ) = x * 0.965^t where x is the initial amount and t is the number of the years 80 = x * 0.965^3 80 = x * 0.89632 x = 80 : 0.89632 ≈ 89 Answer: The initial amount of animals was 89.
