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Aleonysh [2.5K]
4 years ago
12

Hello need it asap I will give you 5 star for all answer

Mathematics
1 answer:
olasank [31]4 years ago
6 0

Answer:x             f(x) = 2.5x − 10.5              g(x) = 64(0.5x)

2            f(2) = 2.5(2) - 10.5             g(2) = 64(0.5*2)

             f(2) = 5 - 10.5                    g(2) = 64(1)

             f(2) = -5.5                          g(2) = 64

3            f(3) = 2.5(3) - 10.5             g(3) = 64(0.5*3)

             f(3) = 7.5 - 10.5                 g(3) = 64(1.5)

             f(3) = -3                             g(3) = 96

4            f(4) = 2.5(4) - 10.5             g(4) = 64(0.5*4)

             f(4) = 10 - 10.5                  g(4) = 64(2)

             f(4) = -0.5                          g(4) = 128

5            f(5) = 2.5(5) - 10.5             g(5) = 64(0.5*5)

             f(5) = 12.5 - 10.5               g(5) = 64(2.5)

             f(5) = 2                              g(5) = 160

6            f(6) = 2.5(6) - 10.5             g(6) = 64(0.5*6) 

             f(6) = 15 - 10.5                  g(6) = 64(3)

             f(6) = 4.5                           g(6) = 192

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The probability that they both only speak Spanish is P = 0.005

<h3>How to find the probability?</h3>

There are 50 people.

We know that:

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  • 4 speak French and Spanish.
  • 7 speak German and Spanish.
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Then, the number that speaks only Spanish is:

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Then the probability that the first randomly selected person speaks Spanish is equal to the quotient between the number that speaks Spanish and the total number:

p = 4/50

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q = 3/49

The joint probability is the product of the two individual ones:

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brainly.com/question/25870256

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