Factor completely.4x2 - 4x + 1
A. (2x - 1)(2x + 1)
B. Prime
C. (2x + 1)2
D. (2x - 1)2
Answer: D
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Find the third derivative of the function.
?
?
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Use the product rule to multiply. Assume all variables represent positive real numbers.
? 
A. 7x2y2
B. 7x2y2
C. 49x2y2
D. 7x3y3
Find the determinant of the matrix and determine if the matrix is invertible 
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Solve the problem.A person drives 56t miles in t hours.(i) Evaluate 56t for t = 1, t = 2, t = 3, and t = 4. Describe the meaning of your results.(ii) Refer to your results to part (i) to determine at what speed the person is traveling.
A. (i) 112, 168, 224, 280; The person drives 112 miles in 1 hour, 168 miles in 2 hours, 224 miles in 3 hours, 280 miles in 4 hours. (ii) The person is driving 56 miles per hour. B. (i) 57, 58, 59, 60; The person drives 57 miles in 1 hour, 58 miles in 2 hours, 59 miles in 3 hours, 60 miles in 4 hours. (ii) The person is driving 57 miles per hour. C. (i) 56, 28.0, 18.7, 14.0; The person drives 56 miles in 1 hour, 28.0 miles in 2 hours, 18.7 miles in 3 hours, 14.0 miles in 4 hours. (ii) The person is driving 56 miles per hour. D. (i) 56, 112, 168, 224; The person drives 56 miles in 1 hour, 112 miles in 2 hours, 168 miles in 3 hours, 224 miles in 4 hours. (ii) The person is driving 56 miles per hour.