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sergij07 [2.7K]
3 years ago
10

How many telephone numbers are there in the 509 area code? Telephone numbers may not start with the number 0 or 1. They also mus

t not begin with 911 or 555. Do not consider other special circumstances.
Mathematics
1 answer:
Nata [24]3 years ago
5 0
7,999,998 is the number you are looking for
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lozanna [386]
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Write the expression as a product.<br> 25-(a + 7)^2
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25 -  ({a + 7})^{2}  =

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Answer:

59°

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From the diagram, shown in the attachment line x and y are parallel lines.

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3 years ago
What is f(-1)=x^2-8x-12
Shtirlitz [24]

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