Mathematics, 28.06.2021 18:20 21ghostrider21

The number of bacteria (b) in a batch of refrigerated food is given by the function b(t) = 20t2 − 70t + 300, where t is the temperature of the food in degrees Fahrenheit. The function t(h) = 2h + 3 gives the temperature of the food h hours after it is removed from refrigeration. Which expression correctly represents the number of bacteria (b) in the food as a function of the number of hours (h) the food is unrefrigerated?

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The number of bacteria (b) in a batch of refrigerated food is given by the function b(t) = 20t2 − 70...