1. 6:3
2. 6:2
3. 3:18
4:5:6
5:13
6:x
7:x
8: check
9:check
10: x
Solve the second equation for y so that you can substitute it in for y in the first equation..
y = 5x - 4
Substitute:
3x + (5x - 4) = 1
D + 1.5......with d being the price of a smoothie.....the expression would represent the total cost of one smoothie + one sandwich.
Answer:
-3
Step-by-step explanation:
Find two easy to read points on the graph.
I see (0, 1) and (-1, 4).
slope = rise/run
Start at (0, 1). Go up 3 units. That is a rise of 3. Now go left 1 unit. That is a run of -1.
slope = rise/run = 3/(-1) = -3
Answer:
y = 3x^2-6x+3 one real solution
y = -x^2 - 4x + 7 two real solution
y = -2x^2+9x-11 two complex solutions
Step-by-step explanation:
b^2-4ac = 0 1 repeated real solution
b^2-4ac > 0 2 distinct real solutions
b^2-4ac < 0 2 complex solutions
