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shutvik [7]
3 years ago
7

It is asserted that 80% of the cars approaching an individual toll both in New Jersey are equipped with an E-ZPass transponder.

Find the probability that in a sample of six cars: a. All six will have the transponder. b. At least three will have the transponder. c. None will have a transponder. Lind, Douglas. Basic Statistics for Business and Economics (p. 183). McGraw-Hill Education. Kindle Edition.
Mathematics
1 answer:
Alborosie3 years ago
5 0

Answer:

Option B, At least three will have the transponder

Step-by-step explanation:

<u>Step 1:  Find the probability in 6 cars</u>

6 * %80 or 6 * 0.8

4.8

Answer:  Option B, At least three will have the transponder

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Add the following rational number7/-27 and 11/18
poizon [28]

Answer:

19/54

Step-by-step explanation:

- 7/27 + 11/18

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- 7/27 * (2/2) + 11/18 * (3/3)

- 14/54 + 33/54

33 - 14/54

19/54

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If f(x)=2x^3-6x^2-16x-20f(x)=2x *3 −6x *2−16x−20 and f(5)=0, then find all of the zeros of f(x)f(x) algebraically.
mihalych1998 [28]

The zeros of the cubic function f(x) = 2x³ - 6x² - 16x - 20 are given as follows:

x = 5, x = -1 + i, x = -1 - i.

<h3>How to obtain the solutions to the equation?</h3>

The equation is defined by the rule presented as follows:

f(x) = 2x³ - 6x² - 16x - 20.

One solution for the equation is given as follows:

x = 5.

Because f(5) = 0.

Then (x - 5) is a linear factor of the function f(x), which can be written as follows:

2x³ - 6x² - 16x - 20 = (ax² + bx + c)(x - 5).

This is because the product of a linear function and a quadratic function results in a cubic function.

Now we expand the right side to begin finding the coefficients of the quadratic function that we are going to solve to find the remaining zeros:

2x³ - 6x² - 16x - 20 =  = ax³ + (b - 5a)x² + (c - 5b)x - 5c.

Then these coefficients are obtained comparing the left and the right side of the equality as follows:

  • a = 2.
  • -5c = -20 -> c = 4.
  • b = -6 + 5a = 4.

Hence the equation is:

2x² + 4x + 4.

Using a quadratic equation calculator, the remaining zeros are given as follows:

  • x = -1 + i.
  • x = -1 - i.

More can be learned about the solutions of an equation at brainly.com/question/25896797

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8 0
1 year ago
Which decimal number is the smallest 1.001 1.1 1.01 1.011
ddd [48]
1.001 is the smallest :)))
3 0
3 years ago
A matatu carries 14 passengers per trip. In
PilotLPTM [1.2K]

Answer:

"23,520"

Step-by-step explanation:

one trip: 14 passengers

one day: 3 trips

passengers: 80

80x14= 1,120

1,120x3= 3,360

3,360x7= 23,520

6 0
2 years ago
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