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Mkey [24]
3 years ago
7

Round the answer to the nearest cent. 5% tax on $20 is $?

Mathematics
1 answer:
Strike441 [17]3 years ago
4 0
 5 1/2 % on $ 20 is $ 1.10
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Arrange the steps in the correct order to solve: <br> sin 3pi/4 cos pi/12
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\bf \cfrac{1}{2}\left[ sin\left( \frac{9\pi+\pi }{12} \right) ~~+~~sin\left( \frac{9\pi-\pi }{12} \right)\right]&#10;\\\\\\&#10;\cfrac{1}{2}\left[ sin\left( \frac{10\pi }{12} \right) ~~+~~sin\left( \frac{8\pi }{12} \right)\right]\implies &#10;\cfrac{1}{2}\left[ sin\left( \frac{5\pi }{6} \right) ~~+~~sin\left( \frac{2\pi }{3} \right)\right]&#10;\\\\\\&#10;\cfrac{1}{2}\left[\cfrac{1}{2}~~+~~\cfrac{\sqrt{3}}{2}  \right]\implies \cfrac{1}{2}\left[ \cfrac{1+\sqrt{3}}{2} \right]\implies \cfrac{1+\sqrt{3}}{4}
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4 years ago
According to the Rational Root Theorem, Negative two-fifths is a potential rational root of which function?
Artemon [7]

Answer:

f(x) = 4x4 – 7x2 + x + 25 f(x) = 9x4

Step-by-step explanation:

Because it has to be this one

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3 years ago
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4 years ago
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KIM [24]
1237 your question serious?
5 0
3 years ago
Saul is playing a game using a wheel divided
Art [367]

Using the binomial distribution, it is found that there is a 0.25 = 25% probability he will land on A on the first spin and A and the second.

For each spin, there are only two possible outcomes, either it lands on Sector A, or it does not. The results of each spin are independent, hence, the binomial distribution is used to solve this question.

<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.

In this problem, we have that:

  • The sectors are equal, which means that it is equally as likely to land on each, hence p = \frac{1}{2} = 0.5.
  • Saul will spin the wheel twice, hence n = 2.

The probability that both land on A is P(X = 2), hence:

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

P(X = 2) = C_{2,2}.(0.5)^{2}.(0.5)^{0} = 0.25

0.25 = 25% probability he will land on A on the first spin and A and the second.

You can learn more about the binomial distribution at brainly.com/question/24863377

4 0
2 years ago
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