Honestly I would recommend you watch an online video on it.
But think of it this way,
Combinations is used when you "Choose" a certain number of things out of a total number and order does not matter.
Permutations are when you permutate or arrange in a "Particular" order where order matters.
Answer:
18cm
Step-by-step explanation:
Area of Trapezium = 1/2(a + b) h
Where:
A = 352cm^2
h = distance between parallel sides = 16cm
a = 25cm
b = ?
352 = 1/2 (25 + b) 16
352 = (25 + b) 8
352 = 200 + 8b
352 - 200 = 8b
152 = 8b
152/8 = b
19= b
→b = 19cm
The other parallel side is 19cm.
Answer: The mean of this binomial distribution is 53.36.
Step-by-step explanation:
We know that , the mean of this binomial distribution is given by :_
, where n = sample size or the number of possible trials .
p = probability of getting success in each trial.
We are given that , the probability of success in each of the 58 identical engine tests is p = 0.92.
i.e. n= 58
p=0.92
Then, the mean of this binomial distribution = 
Hence , the mean of this binomial distribution is 53.36.
The answer is : b .... because it makes sense
Answer:
go to the button that says examples or help video they can help better on delta (tips)