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Zielflug [23.3K]
3 years ago
15

Adda³b(a²-2a+3) and 2ab(a³+3a²-5b)please answer this question step wise​

Mathematics
1 answer:
Allushta [10]3 years ago
5 0

Step-by-step explanation:

i hope it helps you!! :)))

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Their are no fractions between those because they are the same number
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What is the rate of change between the points (0,5) and (1,-1)?
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Step-by-step explanation:

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Find the area of the shape.<br> 7 m<br> 5 m<br> 15 m<br> 4 m
Katena32 [7]
Sorry, idk I just need to answer 1 question to keep asking for more
4 0
3 years ago
Philip ran out of time while taking a multiple-choice test and plans to guess the last 4 questions. Each question has 5 possible
White raven [17]

Using the binomial distribution, it is found that there is a 0.4096 = 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

<h3>What is the binomial distribution formula?</h3>

The formula is:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

Considering that there are 4 questions, and each has 5 choices, the parameters are given as follows:

n = 4, p = 1/5 = 0.2.

The probability that he answers exactly 1 question correctly in the last 4 questions is P(X = 1), hence:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 1) = C_{4,1}.(0.2)^{1}.(0.8)^{3} = 0.4096

0.4096 = 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

8 0
2 years ago
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