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galina1969 [7]
3 years ago
14

The probability of meeting a random person who has the same birthday as you is 1/365 , which is approximately 0.27%. What is the

probability that it takes meeting more than 40 people before you meet someone who has the same birthday as you?
Mathematics
1 answer:
Mariulka [41]3 years ago
6 0

Answer:

89.6%

Step-by-step explanation:

The probability a random person shares your birthday is 1/365, or 0.27%.  That means the probability that they don't share your birthday is 364/365, or 99.73%.

So the probability that you meet 40 people who don't share your birthday is:

P = (364/365)^40

P = 89.6%

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Solve the following system of equations. What is one x-value of a solution?
gulaghasi [49]

Answer:

There is some mistake in the question, because the solutions are x = -1.445 and x = -34.555

Step-by-step explanation:

Given the functions:

f(x) = x² + 4x + 10

g(x) = -32x - 40

we want to find the points at which f(x) = g(x).

x² + 4x + 10 = -32x - 40

x² + 4x + 10 + 32x + 40 = 0

x² + 36x + 50 = 0

Using quadratic formula:

x = \frac{-b \pm \sqrt{b^2-4(a)(c)}}{2(a)}

x = \frac{-36 \pm \sqrt{36^2-4(1)(50)}}{2(1)}

x = \frac{-36 \pm 33.11}{2}

x_1 = \frac{-36 + 33.11}{2}

x_1 = -1.445

x_2 = \frac{-36 - 33.11}{2}

x_2 = -34.555

5 0
3 years ago
Evaluate StartFraction 3 (6 minus 14) over negative 4 EndFraction.<br> -15<br> -6<br> -1<br> 6
11111nata11111 [884]

Answer:

6

Step-by-step explanation:

First you would do 6 minus 14 and end up with -8

Then you would do -8 times 3 which equals -24

Lastly you would do -24 divided by -4 and get 6

4 0
3 years ago
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Luba_88 [7]

Answer:

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Step-by-step explanation:

7 0
3 years ago
What is the gcf for 21,24,27
Marysya12 [62]
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Jeanette earn $33 in 8 hours. At the rate, how much would she earn in 5 hours?
borishaifa [10]

Answer:

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4.12

×   5

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Step-by-step explanation:

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