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1 (1 point) Solve the problem. The temperature, t, in degrees Fahrenheit, of water 67 + m where m is the number of minutes since
1 (1 point) Solve the problem. The temperature, t, in degrees Fahrenheit, of water 67 + m where m is the number of minutes since heating began. How long will it take for the temperature of the water to reach 70 degrees Fahrenheit? Question 1 options: a) 12 min b) 9 min c) 24 min d) 6 min Save Question 2 (1 point) Solve the problem. Fantastic Flags, Inc. finds that the cost to make x flags is while the revenue produced from them is (C and R are in dollars). What is the smallest whole number of flags, x, that must be sold for the company to show a profit? Question 2 options: a) 99,536 b) 646,984 c) 240 d) 1556 Save Question 3 (1 point) Solve the problem. Roberto invested some money at 7%, and then invested $3000 more than twice this amount at 9%. His total annual income from the two investments was $3770. How much did he invest at 9%? Question 3 options: a) $9000 b) $3100 c) $31,000 d) $28,000 Save Question 4 (1 point) Use the data shown in the scatter plot to determine whether the data should be modeled by a linear function. Question 4 options: a) Yes, approximately linear b) Yes, exactly linear c) No, data points do not lie close to a line Save Question 5 (1 point) Solve the problem. The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters). The linear model for this data is where x is temperature and y is growth in millimeters. Use this model to predict the growth of a plant if the temperature is 55. Question 5 options: a) 26.21 mm b) 26.65 mm c) 25.05 mm d) 27.09 mm Save Question 6 (1 point) Solve the system of equations, if a solution exists. 5x + y = 16 x + 2y = 14 Question 6 options: a) x = 4, y = -4 b) x = 2, y = 1 c) x = -2, y = 6 d) x = 2, y = 6 Save Question 7 (1 point) Solve the double inequality. -20 < -4x -4 Question 7 options: a) 1 x < 5 b) -5 < x -1 c) 1 < x < 5 d) 1 x 5 Save Question 8 (1 point) Solve the equation. (8x - 20) = (25x - 10) Question 8 options: a) -10 b) c) -1 d) 1 Save Question 9 (1 point) Solve the inequality and draw a number line graph of the solution. (x + 5) > (x + 1) Question 9 options: x < 13 a) x > -13 b) x > 13 c) x < -13 d) Save Question 10 (1 point) Solve the formula for the specified variable. P = a + b + c for a Question 10 options: a) a = b + P - c b) a = P + b + c c) a = P - b - c d) a = b + c - P Save Question 11 (1 point) You are given a table showing input and output values for a given function y1 = f(x). Use the table to answer the question. What is the y-intercept of the graph of y = f(x)? Question 11 options: a) 1 b) 3 c) -3 d) 0 Save Question 12 (1 point) Find the linear function that is the best fit for the given data. Round decimal values to the nearest hundredth, if necessary. The paired data below consist of the age in years of random people and the number of pets they have had in their lifetime. Find a linear function hat predicts the number of pets given a person's age. Question 12 options: a) y = 0.17x + 2.11 b) y = x - 8 c) y = 0.5x - 2 d) y = 0.11x + 2.49 Save
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