Answer:
x=5
Step-by-step explanation:
x+7=12
x=12-7
x=5
To find the midpoint, you can think of it logically or use the formula. I will explain logically. To do this, first find the distance between the x values and the y values. The distance in x values is 4 and the distance in y values is 2. Then to get the middle, you should divide each by 2 and then add those values to the one that is lower and more onto the left so you get the midpoint as (-5,7)
Answer:
21x^4+6x^3-12x^2
Step-by-step explanation:
The answer to this question is that the trains will meet after 3 hours.
We can work this out by considering that is the closing speed of the two
trains is (50+60=)110 miles per hour, then this must mean that the
combined distance that the trains need to travel before they meet is 330
miles. If the time that is taken to travel 330 miles at 110 miles per
hour, then you simply need to divide 330/110 to find your answer - 3
hours.
Answer: 8
Step-by-step explanation: