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course Mth 173
If the function y = .023 t^2 + -1.8 t + 100 represents depth y vs. clock time t, then what is the average rate of depth change between clock time t = 11.6 and clock time t = 23.2? What is the rate of depth change at the clock time halfway
between t = 11.6 and t = 23.2?
What function represents the rate r of depth change at clock time t? What is the clock time halfway between t = 11.6 and t
= 23.2, and what is the rate of depth change at this instant?
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You haven't answered the above questions.
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If the function r(t) = 6.500001E-02 t + -1.3 represents the rate at which depth is changing at clock time t, then how much
depth change will there be between clock times t = 11.6 and t = 23.2?
What function represents the depth?
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You haven't given the requested function.
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What would this function be if it was known that at clock time t = 0 the depth is 110 ?
.23 (11.6)*2 + -1.8 (11.6) + 100 = 84.456
.23 (23.2)*2 + -1.8 (23.2) + 100 = 68.912
.23 (0)*2 + -1.8 (0) + 110 = 110"
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You haven't really answered this last question, though you do implicitly see what the function should be.
In order to be sure you understand, I need to see explicit solutions and clear answers to the questions.
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