7a) do 400 take 24 to get 376 then divide that by 4
376 ÷ 4 = 94
so you can fit 94 railroad cars
I answered a similar problem yesterday.
In three coin tosses there are 8 possible outcomes:
H H H
H H T
H T H
T H H
T T H
T H T
H T T
T T T
Of those results, four out of the eight have at least 2 tails and so the probability is (4/8) or50%
If you need the probability of getting EXACTLY 2 tails then the probability is (3/8) or .375
The area of the cylinder is a function of its height (h) and radius, (
)
The exact value of h is: 
The given parameters are:


The surface area of a cylinder is calculated as:

Substitute values for Area

Divide through by pi

Substitute value for r



Collect like terms

Make h the subject


Rationalize


Hence, the exact value of h is: 
Read more about surface areas t:
brainly.com/question/25131428
Answer:
4.13
Step-by-step explanation:
To find out how many kilometres they ran in all you have to do 1.43+2.7 =4.13
You can soustracte the first or the second one
and y cancel
x = 6
now you put 6 in x
you can take the first or the second one
6 - y = -2
6 - y = -2
y = -8