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Unformatted text preview: Choose the best answer for each of the following problems. Note: Once you have answered a question, please click the “Next Page” right arrow located in the Navigation Bar to proceed to the next question. 1. Determine the solution of the system of equations 2 x- y = 4 and x + 2 y = 2 . (0 , 2) (2 , 0) (2 ,- 1) (1 , 2) 2. The population of a certain country is declining at such a rate that the population size is reduced in half every 6 years. If the population is 20 , 000 people today, determine the population 24 years from now. 10 , 000 2 , 500 1 , 250 625 3. A rectangular box of length l , width w , and height h has no top. State the outside surface area of this box. lwh lw + 2 lh + 2 wh 4 lh + 4 wh 2( l + w + h ) 4. Let f ( x ) = x 2- 4 x + 3 . The values of x for which f ( x ) ≤ 0 are 1 ≤ x ≤ 3- 3 ≤ x ≤ - 1 ≤ x ≤ 1 3 ≤ x ≤ 5 5. Which of the following functions is represented by the following graph? x y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . y = ( x + 3) 2 y = 3 x y = ( x- 3) 2 y = x 2- 3 6. Given that log 4 ( x- 1) = 3 , then x = 43 63 65 82 7. Simplify (81) 1 / 4 (64)- 1 / 6 ....
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