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yawa3891 [41]
3 years ago
11

A sales firm receives an average of three calls per hour on its toll-free number. For any given hour, find the probability that

it will receive at least three calls. Use the Poisson distribution.
Mathematics
1 answer:
DochEvi [55]3 years ago
6 0

Answer:

At most 3 calls: 64.7%

At least 3 calls: 57.7%

5 or more calls: 18.5%

Step-by-step explanation:

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The tables represent the functions f(x) and g(x).
german
F(x) = 2/3x + 7...when x = -12             g(x) = 2x + 15....when x = -12
      = 2/3(-12) + 7                                      = 2(-12) + 15
      = -8 + 7                                               = -24 + 15
      = -1                                                     = -9

                             when x = -9                      
f(x) = 2/3(-9) + 7                              g(x) = 2(-9) + 15
      = -6 + 7                                             = -18 + 15
      = 1                                                     = -3
                              when x = -6
f(x) = 2/3(-6) + 7                             g(x) = 2(-6) + 15
      = -4 + 7                                            = -12 + 15
      = 3                                                   = 3

thats it......when x = -6, both functions have the same output of 3
         
6 0
4 years ago
How many solutions exist for the given equation?<br> 12x + 1 = 3(4x + 1) - 2
VladimirAG [237]

Answer:

Infinite

Step-by-step explanation:

3(4x + 1) - 2

= 12x + 3 - 2 (Multiply the sum in the bracket by 3)

= 12x + 1 (Simplify)

This means that:

12x + 1 = 3(4x + 1) - 2

is the same as

12x + 1 = 12x + 1

Hence, anything that is used to substitute x is correct.

4 0
3 years ago
What is the midline equation of y = -4sin (2x - 7) + 3?
Georgia [21]

Answer:

y = 3.

Step-by-step explanation:

The minimum and maximum value of \sin(2\, x - 7) over all real x are (-1) and 1, respectively. Hence, the maximum and minimum value of y = -4\, \sin(2\, x - 7) + 3 would be:

  • Maximum: y = (-4)\, (-1) + 3 = 7.
  • Minimum: y = (-4)\, (1)\ + 3 = (-1).

The midline equation of a sine wave is a horizontal line that is right in the middle of maximum and minimum y-values of that sine wave. In the sine wave in this question, the average of the maximum and minimum y\!-values is (1/2) \, (7 + (-1)) = 3. Hence, the midline equation of this sine wave would be y = 3.

4 0
2 years ago
Read 2 more answers
write word problems that represent each way you an use a remainder in a division problem. include solutions.
TiliK225 [7]
Bob had 45 slices of apples to share with his 6 friends. He only wants to share it with his friends, excluding him. How many slices of apple does each friend get and how many will Bob have leftover? How would he share the rest of slices to his friends?

Answer: Each friend will get 7 pieces and Bob will have 3 pieces leftover. He will cut the slice of apples into thirds and give his friends a piece.
7 0
3 years ago
Which of these is the best definition of a circle?
nikitadnepr [17]

Answer:

D

Step-by-step explanation:

Just help a friend

4 0
2 years ago
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