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Juli2301 [7.4K]
3 years ago
9

Which expression is prime? A) x2 - 9 B) 1 - 9x2 C) 2a2 - 25 D) 4x2 - 9

Mathematics
1 answer:
tiny-mole [99]3 years ago
6 0
The answer would be c


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a metal strip is being installed around a workbench that is 7 feet long and 3 feet wide. find how much stripping is needed
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20 ft.

Step-by-step explanation:

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Is this the relation R:={(2,1),(3,1),(5,5),(7,5)} a function?
fredd [130]
<h3>Answer: Yes, it is a function</h3>

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For instance, if we had (2,1) and (2,2) at the same time, then the input x = 2 leads to multiple outputs y = 1 and y = 2 at the same time. A function would not be possible in this example.

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3 years ago
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Temka [501]

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