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Reil [10]
2 years ago
12

Let X = the number of nonzero digits in a randomly selected 4-digit PIN that has no restriction on the digits. What are the poss

ible values of X? 0, 1, 2, 3, 4 0, 1, 2, 3, 4, ... 1, 2, 3, 4, ... 1, 2, 3, 4 0, 1, 2, 3
Mathematics
1 answer:
NISA [10]2 years ago
4 0

Answer:

X = {0, 1, 2, 3, 4}

Step-by-step explanation:

If X is the number of nonzero digits in a 4-digit PIN with no restriction on the digits, the pin can have up to 4 nonzero digits.

Let's see some examples:

If the PIN is 0000 then X = 4

If the PIN is 2045 then X = 3

If the PIN is 7546 then X = 0

From the previous examples, we can see that the possible values for X are 0, 1, 2, 3, 4.

Thus X = {0, 1, 2, 3, 4}

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Select whether each equation has no solution, one solution, or infinitely many solutions
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A sphere with radius r and a cylinder with radius r and a height of r are shown below. How do the surface areas of these solid f
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Answer:

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Step-by-step explanation:

The surface area of the sphere is given by the formula ...

  A = 4πr^2

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Two buses leave a station at the same time and travel in opposite directions. One bus travels 14 miles faster than the other. If
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If the two buses are 640 miles apart after 5 hours. Then the rate of each bus will be 57 miles per hour and 71 miles per hour.

<h3>What is speed?</h3>

The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.

We know that the speed formula

Speed = Distance/Time

Two buses leave a station at the same time and travel in opposite directions.

One bus travels 14 miles faster than the other.

Let x be the speed of first bus. Then the speed of the second bus will be (x + 14).

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Then the rate of each bus will be

Then the relative speed of the buses will be

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Then the value of x will be

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Then the speed of the other bus will be

⇒ 57 + 14

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More about the speed link is given below.

brainly.com/question/7359669

#SPJ1

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