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TI83/84 Quiz. Question 1. How do you change the default number of decimals? Math –> Dec 2 nd -> Mem – 7 Mode -> Float > 2 Mode -> DA -> RA (3 times) Mode -> DA -> RA (3 times) -> Enter. Question 2. What is the COS of 30 degrees? 0.00 0.33 0.67 0.87 1.00. Question 3.
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Question 1 How do you change the default number of decimals? • Math –> Dec • 2nd -> Mem – 7 • Mode -> Float > 2 • Mode -> DA -> RA (3 times) • Mode -> DA -> RA (3 times) -> Enter
Question 2 What is the COS of 30 degrees? • 0.00 • 0.33 • 0.67 • 0.87 • 1.00
Question 3 What is the square root of 207,936 • 416 • 426 • 436 • 456 • 466
Question 4 What is the 4th root of 7,890,481 • 23 • 33 • 41 • 53 • 61
Question 5 Calculate 2x2 – 3xy – y2 for x=25 and y = 35 • -2600 • -1250 • 2075 • 3125 • None of the above
Question 6 Calculate 2x2 – 3xy – y2 for x=7 and y = -2 • -236 • -116 • 136 • 146 • None of the above
Question 7 What are the coordinates for the minimum value of: x2 – 5x + 4 • (1, 3.5) • (2, -2.45) • (3,2) • (2.5, -2.25) • (2.25, -3.25)
Question 8 What are the coordinates for the maximum value of: -x2 – 4x +2.5 • (-1, 3.5) • (-2, 6.5) • (-3, 3.5) • (-3.5, 6.0) • (-4.5, 2.5)