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WebAssign hw2 (13)

WebAssign hw2 (13) - Page 13 of 20 17 1i1points...

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Unformatted text preview: Page 13 of 20 17- 1i1points Alisiiomissigns Jim; Question: TanApMath52.4.076. Determine whether the statement is true or false. if it is tme, explain why it is true. if it is false, give an example to show why it is false. If n: a function. then r o r= :2. 0 True. Take flx) = 13. Then (I . om = fo))= in. And Fix) = [M12 = (r52 = x‘ = (f .. nor). (fl Two. The composition of any two functions is deﬁned as those two functions. Multiplying fby itself results in F. 6 False. For all functions 9 and f, if the multiplication of making f a fthe identity function. I?) False. Take fix) = x + 1. Then 0' o 0(X) = MX))= x+2. But For) = [f(X)]2 = (x+1)2 = x2 + 2x +1. (1‘ J False. (f a 0m = RX). because the composition of a function with itself does not alter the function, 18. Maoists, AlLSulzmiasious Notes .........————......___._.... Question: TanApMathS 2.5.046. 3 annual sales ﬁrst surpass Crimson's annual sales? (Round your answer to two decimal places.) 5.50 0" years from now 19. .355 points AILSubmissjons Notes (in millions of units) in year tis given by the function below where t = 0 correspOnds to 2001. fir) ::- 3.“?! + Ii h”; (0* r113) Over that same period. the sales of ﬁlm cameras (in millions of units) is given by the function below. g“) L I Mil 7+ iii-Tl {ll :5. l ( £3) (a) Show that more ﬁlm cameras than di gital cameras were sold in 2001. 6.82 V’ million digital cameras Faun-ll.-...__.__,-l. - . . . ...
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