# Mat 540 Midterm Answers

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MAT 161 College Algebra Name___________________________________ Midterm Review MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Factor the polynomial by grouping. 1) x2 + 7x + 4x + 28 A) (x - 7)(x - 4) 1) B) (x - 7)(x + 4) C) (x + 7)(x + 4) D) prime Find an equation for the line with the given properties. 2) Perpendicular to the line x = 6; containing the point (5, 2) A) x = 2 B) y = 2 C) y = 5 D) x = 5 2) List the intercepts for the graph of the equation. 3) y = -2x A) (-2, 0) B) (-2, -2) C) (0, -2) D) (0, 0) 3) List the intercepts of the graph. 4) 4) A) (-2, 0), (0, 2), (2, 0) C) (-2, 0), (2, 0) B) (-2, 0), (0, 4), (2, 0) D) (-4, 0), (0,…show more content…
35) Going into the final exam, which will count as three tests, Jerome has test scores of 61, 72, 59, 75, and 77. What score does Jerome need on the final in order to earn a C, which requires an average of 70? 35) 36) Mary and her brother John collect foreign coins. Mary has three times the number of coins that John has. Together they have 160 foreign coins. Find how many coins Mary has. 36) 37) The area of a circle is found by the equation A = r2. If the area A of a certain circle is 36 square centimeters, find its radius r. 37) 10 38) Find the volume V of a sphere of diameter 3 ft. Use 3.14 for . If necessary, round the result to the nearest tenth. 38) 39) How many liters of 80% hydrochloric acid must be mixed with 40% hydrochloric acid to get 15 liters of 65% hydrochloric acid? Write your answer rounded to three decimals. 39) 40) If (9, -9) is the endpoint of a line segment, and (12, -10) is its midpoint, find the other endpoint. 40) 41) It has been determined that the number of fish f(t) that can be caught in t minutes in a certain pond using a certain bait is f(t) = 0.22t + 1, for t > 10. Find the approximate number of fish that can be caught if you fish for 40