11
I've already done this in another question answered just before this one. Just follow what I did with that question.
12.
Givens
Every driver should know the answer to this question. It is an amazing difference.
vf = 0
vi = 59 m/h
d = ???
a = a constant
v1a = 25 m/h
Formula
vf^2 = vi^2 + 2* a*d
vf = 0 and a is negative. Also you don't have to make any conversions since you seek a ratio
- vi^2 = 2*-a * d
(59 m/s^2/ (25 m/s)^2 = (2 -a * d1) / (2 - a * d)
(59/25)^2 = (d / d1)
5.56 = d1/d2
The answer is C.
13
You should be able to do this on your own. The only trick is to convert the km to meters.
d = 3.7 km = 3.7 km * 1000 m/km = 3700 m
vi = 0
vf = 26 m/s
a = ??
formula
vf^2 = vi^2 + 2* a* d
26^2 = 0 + 2*2700 * a
576 =5400*a
576 / 5400 = a
a = 0.125 which they have rounded to 0.12
Answer E.
Step-by-step explanation:
Unit rate = 68 ÷ 8.5 = 8
8 1/2 = 8.5 hours
Answer:
B. Y = 6/4 X
Step-by-step explanation:
Well to find its parallel line we need to put,
2y - 3x = 4 into slope-intercept.
+3x to both sides
2y = 3x + 4
Now we divide everything by 2,
y = 3/2x + 2
So a line that is parallel to the given line will have the same slope but different y intercept, meaning we can cross out choices A and C.
To check look at the image below ↓
<em>Thus,</em>
<em>answer choice B. Y = 6/4 X is correct.</em>
<em />
<em>Hope this helps :)</em>
