Question 1 1 points Save If 2 – 3x > -1 and x + 5…

Question 1 1 points Save If 2 – 3x > -1 and x + 5 > 0, then x could equal each of the following except -4 -2 0 -5 Question 2 1 points Save Which of the following is a quadratic equation that has roots of ? 5×2 + 11x – 7 = 0 6×2 – 19x + 10 = 0 5×2 + 11x – 10 = 0 6×2 + 19x – 10 = 0 Question 3 1 points Save The ideal surface area of a rubber ball shipped from the factory is 50.25 square inches. The company inspector insists that the balls shipped vary no more than 0.3 square inches of this total. To the nearest hundredth, what is the minimum value for the surface area of rubber balls shipped? 50.25 49.95 50.55 none of these Question 4 1 points Save The ideal surface area of a rubber ball shipped from the factory is 50.25 square inches. The company inspector insists that the balls shipped vary no more than 0.3 square inches of this total. To the nearest hundredth, what is the maximum value for the surface area of rubber balls shipped? 50.25 49.95 50.55 none of these Question 5 1 points Save What correlation exists between student grades and acceptance into college? positive correlation negative correlation no correlation none of these Question 6 1 points Save Which equation has a solution of x = -2? 3x – 9 = -4 2(x + 5) = -3x 7(x + 6) = -100 none of these Question 7 1 points Save What are the solutions for |x – 3| = 8? 11 and 0 10 and -5 -5 and 11 none of these Question 8 1 points Save Which number is not written in scientific notation? 15.5 x 104 2.567 x 10-5 6.7 x 10-3 none of these Question 9 1 points Save Simplify 50 – [3(7 + 4)]. -31 17 27 517 Question 10 1 points Save Which of the following is a function? {(-4,1), (1,8), (-4, -2)} {(-4,1), (1,-8), (-2, -2)} {(-4,1), (1,-8), (1, -2)} none of these Question 11 1 points Save Find p(-2) if p(x) = 3×4 + 3×3 + 7x – 10. -10 0 14 46 Question 12 1 points Save State the possible number of imaginary zeros of f(x) = 10×3 – 4×2 + 2x – 6. exactly 1 exactly 3 3 or 1 2 or 0 Question 13 1 points Save What is the relationship between the lines y = 7x + 4 and 2y = 14x + 5? parallel perpendicular neither Question 14 1 points Save y = 2×5 + 14 is a linear equation. True False Question 15 1 points Save Which system has infinitely many solutions? y = 2x + 6 y – 8x = 21 4x – 4y = 4 x – y = 1 4x + 2y = 5 x – 2y = 9 none of these Question 16 1 points Save Which describes the number and type of roots of the equation x3 – 4×2 + 50x + 7= 0? 1 positive, 2 negative 2 positive, 1 negative 3 negative 3 positive Question 17 1 points Save For which of the following functions is f(-5) = 2? f(x) = x + 7 f(x) = 2x – 6 f(x) = 3x + 5 none of these Question 18 1 points Save What is the relationship between the lines y = -8x + 5 and y = -3x – 7? parallel perpendicular neither Question 19 1 points Save Evaluate i14. i -1 -i 1 Question 20 1 points Save Compare the quantity in Column A with the quantity in Column B. The quantity in Column A is greater. The quantity in Column B is greater. The two quantities are equal. The relationship cannot be determined on the basis of the information supplied. Question 21 1 points Save What is the equation for the line that passes through the point (-3, 5) and has a slope of -3? y = -3x – 4 y = -3x + 5 y = -3x – 3 none of these Question 22 1 points Save The formula for the perimeter of a rectangle is P = 2(l + w). If the width of a rectangle is half its length, how many times its length is its perimeter? 2 3 4 6 Question 23 1 points Save Find the slope of 5y = 15x + 35. 3 5 15 35 Question 24 1 points Save Is the statement true or false? True False Question 25 1 points Save Solve w4 + 2w2 – 24 = 0. Question 26 1 points Save What type of polynomial is 79×9? monomial binomial trinomial none of these Question 27 1 points Save What is the GCF of -60×3 + 120×2 + 36x? 6x 12x -12×2 none of these Question 28 1 points Save What is the y-intercept of 3x + y = 7? -3 1 3 7 Question 29 1 points Save Write 3,010,000 in scientific notation. 3.01 x 106 3.01 x 105 3.01 x 104 none of these Question 30 1 points Save Compare the quantity in Column A with the quantity in Column B. The quantity in Column A is greater. The quantity in Column B is greater. The two quantities are equal. The relationship cannot be determined on the basis of the information supplied. Question 31 1 points Save What type of correlation would you expect between the number of minutes of a cell phone call and the strength of the cellular telephone battery? positive negative relative none Question 32 1 points Save Find the solution for the determinant. 100 105 -105 -95 Question 33 1 points Save The ____________measures the steepness of a line. y-intercept domain slope range Question 34 1 points Save Compare the quantity in Column A with the quantity in Column B. The quantity in Column A is greater. The quantity in Column B is greater. The two quantities are equal. The relationship cannot be determined on the basis of the information supplied. Question 35 1 points Save 97 > 79 True False Question 36 1 points Save What is the shape of the graph of any linear function? line bar curve oval Question 37 1 points Save What are the solutions for x in 2×2 + 3x – 9 = 0? 3b and -2 and -3 6 and -12 none of these Question 38 1 points Save Evaluate . 1 110 -110 -120 Question 39 1 points Save Solve for x in Question 40 1 points Save Which of the following is a relation but not a function? {(-10,1), (1,8), (-4, -2)} {(-4,1), (1,1), (-2, -2)} {(-5,1), (1,-7), (21, -2)} none of these Question 41 1 points Save Find the solution for the determinant. 24 -56 56 -24 Question 42 1 points Save Is the math statement true or false? True False Question 43 1 points Save What is the equation for the line that passes through the point (0, 9) and has a slope of -6? y = 6x + 9 y = -6x + 1 y = -6x – 9 none of these Question 44 1 points Save What is the GCF of -26×5 + 4×3 + 2×2? 4×5 2x 2×3 none of these Question 45 1 points Save Which statement fits the data in the table? hours worked = cars washed • .25 hours worked – 4 ÷ cars washed hours worked = .25 ÷ cars washed none of these Question 46 1 points Save The result of multiplying a 2×3 matrix and a 3×4 matrix is a 2×4 matrix. True False Question 47 1 points Save ____________________ uses determinants to solve systems of equations. elimination substitution graphing Cramer’s Rule Question 48 1 points Save In order to _______ matrices, you must always have the same dimensions. multiply add invert none of these Question 49 1 points Save One poll reported that 48% of city residents were against building a new stadium. The polling service stated that the poll was accurate to within 3%. What is the minimum percent of city residents that oppose the stadium? 45% 46.5% 48% 49% Question 50 1 points Save Compare the quantity in Column A with the quantity in Column B. The quantity in Column A is greater. The quantity in Column B is greater. The two quantities are equal. The relationship cannot be determined on the basis of the information supplied. Question 51 1 points Save Write a function rule for the table shown f(s) = 4s f(s) = 2.05s f(s) = 4.10s none of these Question 52 1 points Save What is a solution for x in |3x – 3| = 5? Question 53 1 points Save Which equation models this statement: How many raisins (variable r) are left in a jar of 29 raisins after you have eaten some of them? r = 29 + n r = 29 – n r = 29n none of these Question 54 1 points Save Use Cramer’s Rule to solve the following system of equations. 7x + 5y = 3 3x – 2y = 22 (4, -5) (1, -2) (0, 4) none of these Question 55 1 points Save It is not possible to multiply a 2×5 matrix and a 5×4 matrix. True False Question 56 1 points Save When using Cramer’s Rule to solve the system of equations containing 2x – y = 1 -4x + 3y = 0 the numerator for the y variable looks like which of these determinants? none of these Question 57 1 points Save Compare the quantity in Column A with the quantity in Column B. The quantity in Column A is greater. The quantity in Column B is greater. The two quantities are equal. The relationship cannot be determined on the basis of the information supplied. Question 58 1 points Save The motion of a ball scooped by a field hockey player can be modeled by h = -16t2 + 40t, where t is the time in seconds and h is the height of the ball. Will the ball ever reach 25 feet in the air? Yes No Cannot be determined by the information given. Question 59 1 points Save Solve by completing the square x2 – 6x – 4 = 0. Question 60 1 points Save When using Cramer’s Rule to solve the system of equations containing 5x – y = 5 -3x + y = -9 the denominator for the x and y variables looks like which of these determinants? none of these Question 61 1 points Save If 3x – y = -3 and x + 5y = 15, what is the value of y? 0 1 2 3 Question 62 1 points Save What kind of solutions does ax2 – bx + c = 0 have if b2 – 4ac < 0? two real solutions two complex solutions one complex solution one real solutions Question 63 1 points Save Factor x2 + 18x + 80 completely. (x + 10) (x – 8) ( x – 10) (x – 8) (x – 10)(x + 8) none of these Question 64 1 points Save What is the relationship between the lines y = 2x – 7 and ? parallel perpendicular neither Question 65 1 points Save 8y = 3x + 24 is a linear equation. True False Question 66 1 points Save If a system of linear equations has one solution, the graph of the lines will be parallel. True False Question 67 1 points Save What is the equation for the line that passes through the point (5, -4) and has a slope of -1? y = x + 5 y = -x + 1 y = -x – 4 none of these Question 68 1 points Save Evaluate 3×2 + 2x – 1 when x = -3. -34 20 21 32 Question 69 1 points Save What type of polynomial is -25×4 – 21? monomial binomial trinomial none of these Question 70 1 points Save Use synthetic substitution to find f(-2) for f(x) = x4 – 4×3 – 4x + 6 22 56 62 32 Question 71 1 points Save Evaluate . 2,100 5,200 41,600 54,080 Question 72 1 points Save Factor x2 + 6x – 27completely. (x – 9) (x – 3) ( x + 9) (x – 3) (x + 9)(x + 3) none of these Question 73 1 points Save It is possible to multiply a 3×4 matrix and a 2×2 matrix. True False Question 74 1 points Save When using Cramer’s Rule to solve the system of equations containing 3x – 6y = 9 4x + 2y = -6 the numerator for the x variable looks like which of these determinants? none of these Question 75 1 points Save What is the relationship between the lines and y = 4x – 17? parallel perpendicular neither Question 76 1 points Save Write a function rule for the table shown. f(d) = 200 – 50d f(d) = 50 – d f(d) = 50d none of these Question 77 1 points Save 65 < 56 True False Question 78 1 points Save What is the solution to the system containing these equations? x + y = -8 -3x + 2y = 9 (-5, -3) (0, 0) (2, 6) no solution Question 79 1 points Save Solve by completing the square x2 – 2x – 5 = 0. Question 80 1 points Save If y = 4x + 14, what is the value of y ÷ -4? -x – 14 -x + 14 none of these Question 81 1 points Save What is the solution to the system containing these equations? y = x + 5 x + y = 9 (-5, 0) (2, 7) (4, 5) no solution Question 82 1 points Save It is not possible to add a 2×4 matrix and a 4×2 matrix. True False Question 83 1 points Save Simplify the polynomial [(6x – 8) – 2x] – [(12x – 7) – (4x – 5)] 12x – 7 8 – 2x -4x – 6 4x – 8 Question 84 1 points Save Solve by completing the square 3×2 – 8x – 6 = 0. Question 85 1 points Save What is the solution to the system containing these equations? 2x + 6y = 2 3x + 2y = 10 (3, 2) (9, 0) (-1, 7) none of these Question 86 1 points Save A bookstore offers a 15% discount to its employees. Suppose an employee has a coupon worth $5 off any item and wants to buy a book that costs $45. What is the final cost of the book if the employee discount is taken first and then the coupon is subtracted? $6.75 $25.00 $33.25 $34.00 Question 87 1 points Save Simplify (d4)(d5)3. d27 d19 d23 d12 Question 88 1 points Save Solve the quadratic equation x2 + 8x + 12 = 0. x = 6 and x = 2 x = -6 and x = 2 x = 6 and x = -2 x = -6 and x = -2 Question 89 1 points Save The sum of three numbers is twenty. The second number is 4 times the first and the sum of the first and third is eight. What are the three numbers? 10, 2, and 8 9, 5, and 6 3, 12, and 5 none of these Question 90 1 points Save If x + 3y = 12 and – y = 5, what is the value of x? -3 1 3 9 Question 91 1 points Save What is the solution to the system containing these equations? -7x + 6y = 42 -3x + 4y = 28 (-2, -3) (0, 7) (2, -6) no solution Question 92 1 points Save One factor of x3 – 3×2 – 4x + 12 is x + 2. Find the remaining factors. x + 2, x – 3 x + 2, x + 3 x – 3, x – 2 x + 3, x – 2 Question 93 1 points Save What is the solution for the determinant? -2 2 0 -3 Question 94 1 points Save What type of polynomial is 5×2 – 11x + 2? monomial binomial trinomial none of these Question 95 1 points Save At what point do the two lines with the equations 7x – 3y = 13 and y = 2x – 3 intersect? (-4, -11) (4, 11) (4, 5) none of these Question 96 1 points Save What is the slope of the line between the points (15, 7) and (6, 4)? none of these Question 97 1 points Save What is the solution to the system containing these equations? -6x + 3y = 33 -4x + y = 16 (-2, -3) (1, 0) none of these Question 98 1 points Save Let f(x) = x2 – 4x + 5 and g(x) = 3×2. Compare the quantity in Column A with the quantity in Column B. The quantity in Column A is greater. The quantity in Column B is greater. The two quantities are equal. The relationship cannot be determined on the basis of the information supplied. Question 99 1 points Save Which value is the sum of the solutions to x2 – 3x – 18 = 0? -6 3 -3 none of these Question 100 1 points Save Solve the following system using substitution: y = x + 2 y = 3x (1, 3) (0, 0) (3, 1) (1/3, 1)
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