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pshichka [43]
3 years ago
5

Determine the surface area of the rectangle prism below

Mathematics
1 answer:
lesya [120]3 years ago
3 0

Answer: the answer is C. 52 square meters

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If a procedure meets all of the conditions of a binomial distribution except the number of trials is not​ fixed, then the geomet
morpeh [17]

Answer:

The probability is 0.0428

Step-by-step explanation:

First, let's remember that the binomial distribution is given by the formula:

P(X=k) =\left[\begin{array}{ccc}n\\k\end{array}\right] p^{k}(1-p)^{n-k} where k is the number of successes in n trials and p is the probability of success.

However, the problem tells us that when there isn't a number of trials fixed, we can use the geometric distribution and the formula for getting the first success on the xth trial becomes:

P(X=x) = p(1-p)^{x-1}\\

The problem asks us to find the probability of the first success on the 4th trial (given that the first subject to be a universal blood donor will be the fourth person selected)

Using this formula with the parameters given, we have:

p = 0.05

x = 4

Substituting these parameters in the formula and solving it, we get:

P(X=4) = 0.05(1-0.05)^{4-1}\\P(X=4) = 0.05 (0.95)^{3}\\P(X=4) = 0.05(.8573)\\P(X=4) = 0.0428

Therefore, the probability that the first subject to be a universal blood donor is the fourth person selected is 0.0428 or 4.28%

7 0
3 years ago
Devon has 100 dimes and quarters. If the total value of what he has is $21.40, how many of each coin type does he have?
timurjin [86]

Answer:

4 dimes i think and 5.25 worth of quarters

Step-by-step explanation:

5 0
3 years ago
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HELP ME PLEASE I need answers First answer get Brainliest
Tju [1.3M]

Answer:

Step-by-step explanation:

I think it is c

4 0
3 years ago
Difference of squares examples
bazaltina [42]
Triangle, rectangles, pollygon, robtuse, i hope this is what you mean

8 0
3 years ago
What is 9.4 x 100 I need a quick answerr
abruzzese [7]
Answer: 940

Explanation: A quick way to think of this is moving the decimal in 9.4 to the right by two decimal places (since there are two zeroes in 100) Hope this helps! :)
8 0
3 years ago
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