Answer: The car will skid 200 miles
Step-by-step explanation:
The formula S= 7/2√2D
can be used to approximate the speed S, in miles per hour, of a car that has left skid marks of length D, in feet. To determine how far a car will skid at 70 mph, we will substitute 70 mph for S in the formula. It becomes
70 = 7/2√2D
We will take squares of both sides. This is to simplify the square root on the right had side of the equation. It becomes
70^2 = 7^2/2^2(√2D)^2
4900 = 49/4 × 2D
4900 = 49D/2
Cross multiplying,
49D = 2 × 4900 = 9800
D = 9800/49 = 200
Answer:
If you place two collinear points, then they will fall on the same line
Step-by-step explanation:
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Hello there!
According to the chart, you can see that for every lawn Nina mows, she earns $15. So it's increasing by 15 per yard.
Let's see if this will help:
1 yard= $15
6 yards = ???
I don't want to give you the answer right away, since I want you to learn how to do it. :)
I hope my hint helped!!
(If you're really stuck, take 6 times 15)!
Hope this helped!!
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The car went 12.05 miles per gallon of gas and went 36.15 miles per hour.
(Just divide the total amount of miles by each value to get both of these answers.)
