The value V of a machine t years after it is purchased is inversely proportional to the square root of t + 1. The initial value of the machine is $18,000. (a) Write Vas a function of t. (b) Find the rate of depreciation when t- 1. (Round your answer to two decimal places.) dollars/year (c) Find the rate of depreciation when t 3. dollars/year

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A: As per Bartleby policy I can solve only first question