Answer:
The solution would be (-4, -2)
Step-by-step explanation:
To find this simply add the two equations together.
-9x+7y=22
9x-5y=-26
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2y = -4
y = -2
Now we have the y value, we can solve for the x value.
9x-5y=-26
9x-5(-2)=-26
9x+10=-16
9x=-36
x = -4
Answer: It’s A
Step-by-step explanation:
Answer:
Step-by-step explanation:
Depends on what kind of rotation you would be doing. But for example, if you are rotating 90 degrees about a point on a graph, your point (x, y) changes to (-y, x). Then another 90 degrees would be (-x, -y).
Answer:
44.7
Step-by-step explanation:
Speed = distance / time
speed from distance a to b = 50 = 10 / time
time = 10/50 = 12 minutes
Speed from a to c = 62 = distance / 30 minutes
distance = 62 x 0.5 = 31 m
diatance from b to c = 31 - 10 = 21
time = 30 - 12 = 28 minutes
speed = 21 / 28 minutes
31 / 0.47
