1

Mathematics

1 answer:

kvv77 [185]2 years ago

7 0

Answer:

so the right answer is of option D

Step-by-step explanation:

Have a great day and hope this helps!!!

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What is 0.95 as a simplified fraction?

coldgirl [10]

Answer:

19/20

Step-by-step explanation:

A "simplified fraction" in this case is the ratio of two integers.

0.95 = 95/100 (the ratio of two integers), which in turn can be simplified:

95/100 = 19/20

3 0

2 years ago

Which of the following is equivalent to (a + b) (a/b)

cestrela7 [59]

Answer:

$\frac{a^{2} + ab }{b}$

Step-by-step explanation:

(a + b) * ( $\frac{a}{b}$ ) = $\frac{a * (a+b)}{b}$ = $\frac{a^{2} + ab }{b}$

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2 years ago

2. C = 2πr C ≈ 2 (__ 22 7 ) ( ) C ≈ cm

Kamila [148]

P is just a definition: it's the ratio between a circle's diameter and its circumference. In other words, any circle circumference is approximately 3.14 (p) times longer (around) than its diameter length. Some old Greek dude discovered it a few thousand years ago... Let's do the first 3 problems together - by then I think you'll have confidence you can do the remaining 3! 1. If C = 2pr, then we substitute C = 2*3.14*6, = 37.68 2. If C = 2pr, then let's rearrange that so we can find r: divide both sides (to keep it equal) by 2p to get r by itself: C/2p = 2pr/2p, so r = C/2p. Now substitute: r = 24p/2p = 12 3. If C = 2pr, then r = C/2p (see #2 above), then r = d/2. If A = pr2, then A = p (C/2p)2. Substitute: A = p (32p/2p)2, or A = p (16)2 A = 3.14 * 256 = 803.84 Now can you complete #3 - #6? I bet you can... :-)

5 0

2 years ago

Suppose that the probability of landing an interview after applying for a professional position is 0.13. A job seeker applies fo

andrew11 [14]

Answer:

The expected number of interviews is 3.25.

Step-by-step explanation:

For each person applying for a profissional position, there are only two possible outcomes. Either they land an interview, or they do not. The probability of a person landing an interview is independent of any other person. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

$E(X) = np$