Answer: Choice A) Graph crosses y axis at (0,-5), decreases from x = -10 to x = -2, constant from x = -2 to x = 10
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The statement "The graph crosses the y axis at (0,-5)" is a true statement because the red line crosses at -5 on the y axis. This allows us to rule out choice D. Choice C can be ruled out because the graph never increases. The graph would have to be moving uphill, as you read from left to right, to be increasing. Choice B is false because the junction point is at x = -2 and not x = 0.
Answer:
We must think that the cars are traveling 630 miles in six hours.
Their combined speeds are x and x+25.
distance = velocity * time
Since, velocity = distance / time
(x + x + 25) = 630 / 6
2x + 25 = 105
2x = 80
So x = 40 mph and the other car's velocity is 65 mph.
Step-by-step explanation:
I think that the answer is 1.25
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An irrational number is a number that can't be written as a simple fraction while a rational number is a number that can be written as the ratio of two integers, that is, as a simple fraction. So in this case we have the number 2 which is ration, and we can multiply it by an irrational number such that the product is an irrational number. So any irrational number will meet our requirement because the product of any rational number and an irrational number will lead to an irrational number. For instance: