Answer:
t = 74 / 9
Step-by-step explanation:
-9(t - 2) = 4(1 - 15)
-9t + 18 = 4 - 60
-9t + 18 = -56
-18 -18
-9t = -74
/-9 /-9
t = 74 / 9
t = 8.22
Answer:
the answer is 18. There are 18 ways to arrange the cars.
Answer:


Step-by-step explanation:
Given


--- not -67

Required
Find q and r
Substitute values for d and b



Make q the subject

means that r is less than 8 but greater than or equal to 0
And r and q are integers.
Let 



No other true values of r and q can be gotten.
(5x+1)(5x-1) tell me if you want to know how to do this problem :)
Answer:
- Standard deviation is how far away the values are from the mean.
- All of your graphs have normal distribution, meaning the mean is in the center.
<em>The more spread out your graph is, the greater the standard deviation.</em>
So the option with the most spread out graph, which I think is A, can't see very clear.