Answer: D)0.205
Step-by-step explanation:
In binomial distribution, the probability of getting success in x trials is given by :-
, where n is the total number of trials , p is the probability of getting success in each trial .
Given : The probability that a component will fail is 0.2.
Let x be the number of components will stop working.
i.e. p=0.2
n=12
Since The machine will stop working if more than three components fail.
Then, the probability that the machine will stop working will be :-
Hence, the probability that the machine will stop working is 0.205.
Thus , the correct answer is D)0.205
There would be 16 roses and 24 carnations in 4 bouquets.
The answer to this is 3 2/3
x = a√3
a = 3
<u>x </u><u>=</u><u> </u><u>3</u><u>√</u><u>3</u>
.........
The answer would be the first one, combining 8 and -2
This is because the 2 like terms are 8x^2 and -2x^2. You can get this by looking in the problem. There are 2 terms with x^2 which means we have to combine them. One of them is 8x^2 (the 1st one) and the other is -2x^2 (since it says 7-2x^2)
If you combine these you will get 6x^2 [8+(-2)=6]