(L,L,L),(L,L,W),(L,W,L),(L,W,W),(W,L,L),(W,L,W),(W,W,L),(W,W,W) 8 total
Answer:
no real solutions
complex solutions: x = 0.5±i√10.75, y = -2.5±i·3√10.75
Step-by-step explanation:
The graph shows the line and parabola do not intersect, so there are no real solutions to this system of equations.
__
However, the complex x-solutions can be determined from the graph to be ...
x = 0.5 ±i√10.75
The corresponding y-values can be found from the equation
y = 3x -4 = 3(0.5 ±i√10.75) -4
y = -2.5 ± i·3√10.75
Answer:
C, D and E
Step-by-step explanation:
Plug the numbers in.
A would be
Which simplifies to
which is wrong
B simplified is
which is also incorrect
C simplified is
which works
D simplified is
which also works
And finally, E simplified is
which also works
Answer:
4 km per hour and 6 km per hour.
Step-by-step explanation:
The combined running rate = 30/3 = 10 km/h.
If one runner's speed = x then the other one's speed is x+2 km/h.
So x + x + 2 = 10
2x = 8
x = 4
So one runs at 4 km/h and the other at 6 km/h.
Answer:
B
Step-by-step explanation: