A relation is a function if . there is exactly one input for each output there is exactly one output for each input there is more than one input for each output there is more than one output for each input

the 3rd option is right

step-by-step explanation:

y=sec x is the correct answer

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1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

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step-by-step explanation:

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