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Math 10006 - MidTerm Exam & Math 10021 Final Examination STUDY GUIDE Spring 2011 Name___________________________________ Score ___________________ TOTAL _______ Final Grade ______ The use of a calculator may be permitted on this exam. Duration of the Actual test is 100 minutes or less at the discretion of the instructor and will have less number of questions than this study guide. This study guide does not necessarily contain questions from every possible topic covered by the final exam. Any topic covered in the course may be represented in the final. It is recommended that students study all topics of the course. We also recommend studying chapter tests and chapter exercises. All questions are the property of Math Department at Kent - Trumbull. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve. Round to the nearest hundredth, if necessary. 1) Find 83% of 274? A) 2274.2 B) 22.74 1) C) 22,742 D) 227.42 Add or subtract as indicated. Write the answer in lowest terms. 5 1 2) 8 6 A) 3) 12 11 24 1 6 C) 11 48 D) 7 12 3 14 8 24 A) 10 4) 17 B) 2) 19 24 3) B) 11 19 24 C) 12 19 24 D) 11 2 1 +2 3 5 A) 18 13 15 4) B) 17 13 15 C) 19 13 15 D) 20 13 15 Evaluate the expression. 5) (-4)3 A) -12 6) 5) C) -64 B) 64 D) 12 2 4 1 · + 3 3 3 A) 10 3 7) -52 A) 25 6) B) 8 9 C) 5 9 D) 10 9 7) B) -10 C) 10 Name the property illustrated by the statement. 8) 15 + (5 + 18) = (15 + 5) + 18 A) identity element for addition C) associative property of addition D) -25 8) B) distributive property D) commutative property of addition 1 9) 6 + 0 = 6 A) distributive property C) identity element for addition 9) B) associative property for addition D) commutative property for addition 10) (2 · 7) · 5 = 2 · (7 · 5) A) distributive property C) associative property of multiplication 11) 10) B) commutative property of multiplication D) identity element for multiplication 1 ·8=1 8 11) A) distributive property C) identity element for multiplication B) multiplicative inverse property D) associative property of multiplication 12) 9(x + 7) = 9x + 9 · 7 A) commutative property of addition C) identity element for multiplication B) distributive property D) associative property of multiplication 13) 5 · 3 = 3 · 5 A) associative property of multiplication C) distributive property B) identity element for multiplication D) commutative property of multiplication 14) 8 + (-8) = 0 A) associative property of addition C) commutative property of addition B) additive inverse property D) identity element for addition 12) 13) 14) Simplify. 15) (-0.3)2 + 1.71 A) 1.8 16) 7 9 D) 1.62 16) B) 31 63 C) - 7 9 D) - 31 63 17) B) -5 C) 5 D) -6 173 + 7 32 - 4 A) 90 19) C) 1.11 27 - 32 2 2(-5) + 5 A) 6 18) B) -1.62 ∣10(-4)∣ - ∣1 - 10∣ ∣9(7)∣ A) 17) 15) 18) B) 54 C) 34 D) 36 53 + 7 32 - 4 A) 18 19) B) 12 C) 10 2 D) 30 20) 28(18 - 15) - 12 32 - 3 A) 24 20) B) 15 C) 12 D) 14 Multiply or divide as indicated. Write the answer in lowest terms. 3 21) 3 ÷ 9 8 A) 22) B) 3 8 C) 1 2 D) 3 7 4 7 ÷ 19 12 A) 23) 1 4 21) 22) 48 133 B) 46 133 C) 48 131 D) 47 133 6 14 · 35 15 A) 24) 6 23) 4 15 B) 4 25 C) 4 35 D) 28 175 5 4 ·4 7 5 A) 32 24) 8 35 B) 32 C) 2 18 35 D) 24 4 7 Write the fraction as an equivalent fraction with the given denominator. 5 25) with a denominator of 12 4 A) 3 12 B) 20 12 Insert <, >, or = to make the statement true. 26) |-4| _____ |-4.2| A) = 27) -5.1 ____ -4.1 A) < C) 25) 5 12 D) 15 12 26) B) > C) < B) = C) > 27) 28) Find the opposite of -29. A) -29 28) 1 B) 29 C) 0 3 D) 29 Solve. 29) On a map of Nature's Wonder Hiking Trails, 1 centimeter corresponds to 6 miles. Find the length 1 of a trail represented by a line that is 1 centimeters long on the map. 2 A) 4 mi B) 1 mi 4 C) 109 1 mi 2 D) 9 mi 30) The ratio of the weight of an object on Earth to the weight of the same object on Pluto is 100 to 3. If a buffalo weighs 3612 pounds on Earth, find the buffalo's weight on Pluto. (Round to the nearest pound.) A) 108 lb B) 10,836 lb C) 8 lb D) 1,083,600 lb Write the decimal as a fraction. Do not simplify. 31) 0.57 1 100 A) B) 57 57 57 D) 100 D) y = 4 Write the prime factorization of the number. 33) 252 A) 2 · 2 · 2 · 3 · 7 B) 2 · 3 · 3 · 3 · 7 D) 2 · 2 · 3 · 3 · 7 A) 32) 33) C) 3 · 3 · 3 · 3 · 7 34) B) 2 · 2 · 2 · 3 · 13 C) 2 · 3 · 3 · 3 · 13 35) 5324 A) 2 · 2 · 11 · 11 · 11 C) 4 · 1331 36) Find the reciprocal of - 30) 31) 57 C) 1000 Find an equation of the line. Write the equation in standard form. 32) Vertical; through (-8, 4) A) x = -8 B) x = 4 C) y = -8 34) 468 A) 3 · 3 · 3 · 3 · 13 29) D) 2 · 2 · 3 · 3 · 13 35) B) 2 · 2 · 2 · 11 · 11 · 11 D) 2 · 2 · 2 · 11 · 11 1 . 15 1 15 36) B) 1 C) 15 D) - 15 Find an equation of the line satisfying the conditions. Write the equation in the form x = a, y = b, or y = mx + b. 37) Through (-7, -58) and (5, 38) 37) 1 457 A) y = 8x B) y = -8x - 114 C) y = x D) y = 8x - 2 8 8 Find the additive inverse or opposite. 38) |-15| A) -15 38) 1 C) 15 B) 0 4 D) 15 Write the percent as a decimal. 39) 577% A) 577 39) B) 0.577 C) 57.7 D) 5.77 C) 16 D) 20 Evaluate the expression for the given replacement values. 40) (x + 2y) 2 x = 2, y = 4 A) 10 40) B) 100 List the factors of the number. 41) 110 A) 1, 2, 5, 10, 11, 55, 110 C) 1, 2, 5, 10, 11, 22, 55, 110 41) B) 1, 2, 5, 10, 11, 22, 110 D) 1, 2, 4, 5, 10, 11, 22, 55, 110 Find the function value. 42) Find f(4) when f(x) = 4x2 + 7x. A) 36 B) 60 42) C) 44 D) 92 Solve the equation. 1 3 43) - x + = x - 6 2 2 43) B) -2 A) 8 C) -4 D) 4 44) 6x + 4(2x - 4) = 2 - 4x A) - 1 45) 44) C) - B) 1 7 5 D) - 7 9 3(y + 2) = 2y + 3 4 A) - 18 5 46) -0.3(x - 6) + x = 0.5(9 - x) A) 5.25 45) B) 6 5 C) - 6 5 D) 18 5 46) B) 13.5 C) 2.25 D) 1.5 Find the reciprocal or multiplicative inverse. 4 47) 9 A) - 9 4 B) 47) 9 4 C) - 4 9 Simplify the expression. (Remember the order of operations.) 48) (-6 - 7) - [(-7) - (-14)] A) -6 B) -34 C) 6 49) 16 - (-18) + 9 + (-8) A) 15 D) 9 48) D) -20 49) C) -15 B) 35 5 D) -17 50) ∣-8∣ - 52 - (-7 - 2) A) -12 50) B) -26 C) -24 D) -8 Find the slope of the line. 51) 51) y 10 5 -10 -5 5 10 x -5 -10 B) -6 D) undefined slope A) 0 C) 2 52) Passes through (1, 6) and (9, -8) 7 4 A) m = B) m = 4 7 52) C) m = Find the LCM of the list of numbers. 53) 27, 24, 54 A) 216 B) 108 54) 60, 90 A) 360 7 4 D) m = - 1 5 53) C) 72 D) 54 C) 30 D) 540 54) B) 180 Write the equation of the line with the given slope, m, and y-intercept, (0, b). 4 31 55) m = - ; b = 5 5 A) y = - 4 31 x+ 5 5 B) y = 4 31 x5 5 C) y = - 4 31 x5 5 55) D) y = 4 31 x+ 5 5 Multiply or divide as indicated. 56) 30.007 × 8.85 A) 265.506195 57) 0.39 1.404 A) 0.36 56) B) 2655.6195 C) 265.56195 D) 266.1195 B) 0.278 C) 3.6 D) 36 57) 6 Find an equation of the line passing through each pair of points. Write the equation in the form Ax + By = C. 58) Through (-9, -5) and parallel to the x-axis. 58) A) y = -9 B) y = -5 C) x = -5 D) x = -9 59) (-8, 1) and (6, -2) A) 3x - 14y = 10 59) B) -3x - 14y = 10 C) 9x - 8y = 38 60) Through (1, -2) and parallel to the y-axis. A) y = -2 B) x = -2 D) -9x + 8y = 38 60) C) y = 1 D) x = 1 Solve and graph the inequality. Give answer in interval notation. 61) 38 > 5x + 3 ≥ 18 A) (3, 7] 61) B) [3, 7) -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 C) [3, 7] D) (3, 7) -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 Complete the ordered pair so that it is a solution of the given linear equation. 62) y - 2x = - 15 (-9, ) A) (-9, -3) B) (-9, -33) C) (-9, 3) Add or subtract as indicated. 63) 77.23 + 6.431 + 9.647 + 1.93 A) 95.238 64) 5.590 - 4.802 A) 0.788 63) B) 95.248 C) 96.238 D) 95.338 B) 0.688 C) 0.888 D) 10.392 64) Determine whether the lines are parallel, perpendicular, or neither. 65) 9x + 3y = 12 21x + 7y = 31 A) perpendicular B) neither 66) 3x - 8y = 4 32x + 12y = 2 A) perpendicular 62) D) (-9, -18) 65) C) parallel 66) B) neither C) parallel Find the square root. Assume that all variables represent nonnegative real numbers. 67) 169 A) 84 B) 13 C) 14 D) not a real number 7 67) Multiply. 68) - 7 3 20 25 A) - 68) 2 9 B) 21 500 C) - Simplify the expression by combining like terms. 69) 5.8k - 1.4 - 3.8k + 6 + 2.6k A) 4.6k - 4.6 B) 4.6k + 7.4 1 50 D) 7 15 69) C) 12.2k + 4.6 D) 4.6k + 4.6 Solve the inequality and draw a number line graph of the solution. 5 1 70) (x + 5) > (x + 2) 6 3 A) (7, ∞) 3 70) B) (-7, ∞) 4 5 6 7 8 9 10 11 -11 -10 -9 C) (-∞, -7) -8 -7 -6 -5 -4 -3 6 7 8 9 10 11 D) (-∞, 7) -11 -10 -9 -8 -7 -6 -5 -4 -3 3 Rewrite the expression without absolute value bars. 71) -6 + -7 A) -13 B) -1 4 5 71) C) 1 D) 13 Complete the ordered pairs so that they are solutions of the given linear equation. 72) 6x + y = -33 (-7, ), (0, ), (1, ) A) (-7, 9), (0, 33), (1, -39) B) (-7, -75), (0, -33), (1, -39) C) (-7, 9), (0, -33), (1, -39) D) (-7, -51), (0, -33), (1, -39) 73) y = 1 x - 2; 2 (6, ), ( A) (2, -4), (-4, -4) 72) ,-4) 73) B) (6, 1), (-4, -4) C) (6, 1), (2, -4) D) (6, -4), (0, 0) Perform the indicated operation. Write the answer in simplest form. 8 2 8 1 74) ÷ 9 9 27 A) 24 23 B) 8 69 C) 8 64 69 74) D) 1472 2187 Graph the linear equation by finding and plotting its intercepts. 75) -6x - 30y = 30 75) y 10 5 -10 -5 5 10 x -5 -10 B) (0, -1), (-5, 0) A) 0, 1 , 5, 0 y -10 y 10 10 5 5 -5 5 10 x -10 -5 -5 -5 -10 -10 C) 0, 1 , -5, 0 10 x 5 10 x D) (0, -1), (5, 0) y -10 5 y 10 10 5 5 -5 5 10 x -10 -5 -5 -5 -10 -10 9 76) -x + 2y = 8 76) y 10 5 -10 -5 5 x 10 -5 -10 A) B) y -10 y 10 10 5 5 -5 5 10 x -10 -5 -5 -5 -10 -10 C) 5 10 x 5 10 x D) y -10 y 10 10 5 5 -5 5 10 x -10 -5 -5 -5 -10 -10 Perform the indicated operation. Write the answer in lowest terms. 7 1 77) 9 -4 10 12 A) 4 78) 5 37 60 B) 5 41 60 C) 5 77) 1 10 D) 5 37 60 3 1 +5 4 7 A) 10 78) 25 28 B) 2 6 7 C) 1 10 3 11 D) 4 13 28 Write an equation of the line. Write the equation in the form x = a, y = b, or y = mx + b. 79) Through (-9, 14); perpendicular to 9x + 7y = 126 7 9 7 9 A) y = x + 21 B) y = - x + 14 C) y = - x + 21 D) y = - x + 126 9 7 9 7 80) Through (7, 6); parallel to 7x + 2y = 53 2 7 61 A) y = - x + 6 B) y = x + 7 2 2 80) 7 61 C) y = - x + 2 2 2 D) y = - x + 53 7 Simplify the fraction. 270 81) 675 A) 82) 81) 225 90 B) 90 225 C) 2 5 D) 270 675 441 540 A) 79) 82) 49 60 B) 441 540 C) 147 180 D) 180 147 Use the equation to identify the slope and the y-intercept of the graph. 83) 3x + 7y = 27 3 27 1 7 A) m = ; (0, ) B) m = 2 ; (0, ) 7 7 3 27 C) m = - 3 27 ; (0, ) 7 7 83) 1 7 D) m = -2 ; (0, ) 3 27 Solve the inequality. 13x - 10 84) 6 < <7 11 84) A) - 87 76 <x< 13 13 B) 76 87 <x< 13 13 C) - 76 87 ≤x≤ 13 13 D) - 76 87 <x< 13 13 Perform the indicated operations. 85) (-7)2 A) 49 Find the GCF for the list. 86) 56, 10, 35 A) 5 87) 36, 15 A) 1 85) B) 14 C) -49 D) -14 B) 2 C) 1 D) 7 B) 15 C) 3 D) 6 86) 87) 11 Write the algebraic expression described. Simplify if possible. 88) A 32-centimeter piece of rope is cut into two pieces. If one piece is z centimeters long, express the other length as an algebraic expression in z. A) (32 - z) cm B) (z - 32) cm C) (z + 32) cm D) (32 - 2z) cm 88) Evaluate. 89) 3 2 7 A) 89) 9 49 90) (0.7)3 A) 0.233 B) 49 9 C) D) 2 3 7 90) B) 0.343 C) 343 Identify the number as prime or composite. 91) 157 A) Composite D) 2.1 91) B) Prime 92) 187 A) Composite Subtract. 93) -43 - (-42) A) -1 9 7 92) B) Prime 93) B) -85 C) 85 D) 1 Write the fraction as a decimal. If the decimal is a repeating decimal, write using the bar notation and then round to the nearest hundredth. 19 94) 94) 20 A) 0.95 ≈ 0.96 B) 0.955 ≈ 0.96 C) 0.95 Convert as indicated. 95) 17 square feet = ______ square inches 17 A) 2448 B) 144 D) 0.95 ≈ 0.95 95) C) 289 D) 204 B) 6 C) -10 D) 10 97) 24 - [5 + (9 - 4)] - (4 - 2)3 A) 32 B) 6 C) 22 D) 10 98) -0.5(4.9 - 6.1) A) 8.55 B) -8.55 C) 0.6 D) -0.6 Simplify the expression. 96) 5[-4 + 5(-5 + 7)] A) 30 96) 97) 98) 12 99) -15 + 2 · 10 5 A) 7 99) B) -26 C) 1 D) -1 Solve the application. 100) The difference of a number and 7 is the same as 39 less the number. Find the number. A) -23 B) -16 C) 16 D) 23 13 100) Answer Key Testname: MATH10021_FINAL_STUDYGUIDE 1) D 2) A 3) B 4) C 5) C 6) D 7) D 8) C 9) C 10) C 11) B 12) B 13) D 14) B 15) A 16) B 17) B 18) D 19) B 20) C 21) B 22) A 23) B 24) A 25) D 26) C 27) A 28) D 29) D 30) A 31) D 32) A 33) D 34) D 35) A 36) D 37) D 38) A 39) D 40) B 41) C 42) D 43) D 44) B 45) C 46) C 47) A 48) D 49) B 50) D 14 Answer Key Testname: MATH10021_FINAL_STUDYGUIDE 51) A 52) A 53) A 54) B 55) A 56) C 57) C 58) B 59) B 60) D 61) B 62) B 63) A 64) A 65) C 66) A 67) B 68) B 69) D 70) B 71) D 72) C 73) B 74) C 75) B 76) B 77) D 78) A 79) A 80) C 81) C 82) A 83) C 84) B 85) A 86) C 87) C 88) A 89) A 90) B 91) B 92) A 93) A 94) C 95) A 96) A 97) B 98) C 99) C 100) D 15