Answer:
15
Step-by-step explanation:
The opposite of 15 is -15. So the opposite of -15 will be 15.
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Answer:
9
Step-by-step explanation:
The equation graphed from these points is y=3x+9, therefore the y-intercept is 9.
Answer:
a = 70 km/h - 20 km/h / 0.008 h = 50 km/h / 0.008 h = 6250 km/h²