Question: Please help me answer these, thank you for your hardwork! 7. Use algebra to determine whether each function is even, odd or neither. [A6] [C2]

Please help me answer these, thank you for your hardwork!

7. Use algebra to determine whether each function is even, odd or neither. [A6] [C2] a. f(x) = xcosx+1 b. f (x ) = 10 Copyright @ 2018 The Ontario Educational Communications Authority. All rights reserved. N TVO ILC MHF4U 4.8 Unit 4 Assignment 8. A marine biologist measures the presence of a pollutant in an ocean and concludes that the concentration, C, in parts per million (ppm), as a function of the population, P, of the people who visit the beach is given by C(P) = 1.38P+97.4 . The population of people visiting the beach, in thousands, can be modeled by P(t) = 12 (1.078)' where t is the time in years since the first measurement. a. Determine an equation, in simplified form, for the concentration of pollutant as a function of the number of years since the first measurement. [T2] b. How long (to the nearest year) will it take for the concentration to reach 180 ppm? [T3]

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