MATH 1148 Quiz: MATH 148 OSU Sp06quiz4 solns
31 Jan 2019
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Math 148 quiz 4 spring 2006: the percentage of rst-year college students who are male is approximated by where x = 5 corresponds to 1985. 1. M (x) = 53. 145 6. 185 log x, (a) estimate the percentage of male rst-year students in 2003. The year 2003 corresponds to x = 23 so m (23) = 53. 145 6. 185 log(23) = Need to solve 35 = 53. 145 6. 185 log x. Can solve graphically to get x = 858. 44 which corresonds to the year 2838. 44 . (solving this algebraically gives x = 10 which evaluates to approximately 858. 44. ) 6. 185: a) translate the logarithmic statement ln(x2 + 2y) = z + w into an equivalent exponential one. Solution. x2 + 2y = ez+w: write as a single logarithm: 2 log(x) 2[log(x + 5) + log x] Solution. log(cid:18) x2 (x + 5)2x2(cid:19) = log(cid:18) 1based on data from the higher education research institute at ucla: solve the equation 6e 2. 4x = 35.
