Andrea drove 50miles/hour
refer to pic for working
Answer:
15 (3+1)
Step-by-step explanation:
Hope this helps :)
Step-by-step explanation:
given :
2x - 3y = 11
-6x + 8y = 34
find : the solutions of the system by using Cramers Rule.
solutions:
in the matrix 2x2 form =>
[ 2 -3] [x] [11]
=
[-6 8] [ y] [34]
D =
| 2 -3 |
|-6 8 |
= 8×2 - (-3) (-6)
= 16-18 = -2
Dx = | 11 -3 |
| 34 8 |
= 11×8 - (-3) (34)
= 88 + 102
= 190
Dy = | 2 11 |
|-6 34 |
= 2×34 - (-6) (11)
= 68 + 66
= 134
x = Dx/D = 190/-2 = -95
y = Dy/D = 134/-2 = -67
the solutions = {-95, -67}
Answer:
Shift 6 units right.
Step-by-step explanation:
Easiest way to answer this question is to plot the two graphs:
Let's plot these graphs and analyse each graph.
Lets take the graph of
that is attached.
We can clearly see that graph intersects x axis at x=0 and then essentially looks like y=x is mirrored by the y axis.
Now when we look at the
that is attached,
We can see that graph intersects x axis at x=6 and is a composite graph of
and its mirrored graph by y=6.
We can clearly see that graph has moved 6 units to the right.