Answer:
Step-by-step explanation:
2(20 + 22) = 2(42) = 84 total books
Only one because there is one variable and the combined coefficients of x are non-zero.
(0.75(x+40)=0.70(x+20), 0.05x=14-30=-16, x=-320)
Draw the triangle and then use Pythagoras' theorem
distance =

= 19.70 (2dp)
A: 2,5
B: 3,1
C: -2,4
Explanation:
When you’re moving right and up you would add however many numbers you moved up to the original points because going right on a graph makes the X a larger number, and going up makes it larger.
D) Vertices: (1, -1), (-11, -1); Foci: (-15, -1), (5, -1)