Ill mark brainlist plss help
2 answers:
Answer:
Step-by-step explanation:
Proportion
Ratio
___________
We have 6/12 and four fraction answer choices, all that have a bigger number than the numerator and denominator of 6/12 combined. We are asked to find the ratio equivalent to 6/12. To do this, we need to first realize that 6/12 simplified is 1/2. Meaning that our answer would be the ratio that is 1/2.
70/144 is not 1/2 simplifed, since 70 * 2 = 140. It is wrong
30/50 is not 1/2 simplified, scratch the 0's from the 3 and 5 to get the final fraction 3/5. It is wrong.
36/72 is 1/2 simplified, since 36 * 2 = 72. It is correct.
20/36 is not 1/2 simplified. It is incorrect
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Answer: If we define 2:00pm as our 0 in time; then:
at t= 0. the velocity is 30 mi/h.
then at t = 10m (or 1/6 hours) the velocity is 50mi/h
Then, if we think in the "mean acceleration" as the slope between the two velocities, we can find the slope as:
a= (y2 - y1)/(x2 - x1) = (50 mi/h - 30 mi/h)/(1/6h - 0h) = 20*6mi/(h*h) = 120mi/
Now, this is the slope of the mean acceleration between t= 0h and t = 1/6h, then we can use the mean value theorem; who says that if F is a differentiable function on the interval (a,b), then exist at least one point c between a and b where F'(c) = (F(b) - F(a))/(b - a)
So if v is differentiable, then there is a time T between 0h and 1/6h where v(T) = 120mi/