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Mkey [24]
3 years ago
8

I need help on these questions​

Mathematics
1 answer:
lilavasa [31]3 years ago
3 0

Answer:

9. m = -3

11. m = 1

13. m = \frac{3}{5}

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Two Social Security numbers (see Exercise 8.12) match zeros if a digit of one number is zero iff the corresponding digit of the
Roman55 [17]

Answer:

Proved

Step-by-step explanation:

From the given parameters, we have:

n = 9 i.e. the length of each security numbers

r = 2 i.e. 2 security numbers

Required

In 513 security numbers, 2 must have matching zeros

To do this, we make use of Pigeonhole principle.

First, we calculate the number of all security numbers not having matching zeros.

Each of the 9 digits can be selected in 2 ways.

2 ways implies that each digit is either 0 or not

So, total selection is:

Total = 2^9

Total = 512

Apply Pigeonhole principle

The principle states that: suppose there are n items in m containers, where n>m, then there is at least one container that contains more than 1 item.

This means that if there are 512 security number without matching zeros, then there is 1 (i.e. 512 + 1) with matching zeros.

512 + 1 = 513

8 0
3 years ago
Could you explain and answer the question?
podryga [215]

So F(6) means 6 on the x axis  then look to see where the graph is on the Y axis,

 in this case on x 6 y=4

7 0
3 years ago
Read 2 more answers
The perimeter of a triangle is 27 feet. One side is 3 feet longer than the shortest side, and the longest side is twice as long
Iteru [2.4K]

Answer:

Long side: 12

Middle side: 9

Shortest side: 6

6 0
3 years ago
Thank u :)!! for the help
Alla [95]
11 pls mark me brainliest
5 0
3 years ago
24+0.44x=19+1.69x<br> Can someone answer this real quick
abruzzese [7]

24 + 0.44x = 19 + 1.69x

Subtract 19 from both sides

5 + 0.44x = 1.69x

Subtract 0.44x from both sides

5 = 1.25x

Divide by 1.25 on both sides

4 = x

6 0
2 years ago
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