Answer:
The correct answer is 20x-1
Answer:
= .0000001
Step-by-step explanation:
The odds of getting 1 number of out the 10 possible number (0-9) equal 10 is 1/10
There are 7 numbers to pick
P(xxx-xxxx) = 1/10 * 1/10 *1/10 * 1/10 * 1/10 * 1/10 *1/10
= .0000001
Answer:

Step-by-step explanation:
on the picture
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Answer: 4x-1
Step-by-step explanation:
