MATH1320 Midterm: Exam3Fall2016
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Instructions: you must show enough work to justify your answer on all problems. Correct answers with no work (or inconsistent work) shown will not receive full credit. All answers are to be exact; no decimal approximations. You are not allowed to use any electronic device for this exam. Label number(s) on the x-axis and/or y-axis to help identify your sketch. Then state the domain and range of the function in interval notation. (14 pts. ) Use the properties of logarithms to write the following as a sum and/or difference of logarithms. Put a box around your answer. ln x x. 2 your answer. as a single logarithm. (6 pts. ) Use the change of basis formula to write log 5. 85 in terms of base 10. (3 pts. ) A citrus fruit grower purchased 30 orange trees and 20 lemon trees for . The next week the grower bought 25 orange trees and 35 lemon trees for .
