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The number of people who work at a tourist resort can be modelled by the equation:...

The number of people who work at a tourist resort can be modelled by the equation: y = 2200sin(0.52x -2 ) + 4300

a) what is the maximum number of people who work at the resort during the year?

b) In what month does the number of people who work at the resort first reach 4200?

Math   Precalculus   
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