Use front end rounding to estimate the sum or difference. Then find the exact answer to the problemMr. Buttimer took a plane trip for a total of 6.03 hours. He watched an in-flight movie for 2.41 hours. From the airport, he took a cab ride for 0.58 hour to the train station. Next, he took the train home for 2.34 hours. What was the total time spent traveling?
A. Estimate: 9 hours; exact: 8.95 hours
B. Estimate: 11 hours; exact: 8.95 hours
C. Estimate: 11 hours; exact: 11.36 hours
D. Estimate: 12 hours; exact: 11.36 hours
Answer: A
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Classify as either true or false.All real numbers are solutions of |4x - 6| > -9.
A. True B. False
Provide an appropriate response.The prices (in dollars per unit) for 3 textbooks are represented by the price vector: P = 
. A university bookstore orders these books in the quantities given by the column vector: Q = 
. Use the matrix operations on a graphing calculator to find the total cost (in dollars) of the purchase.
What will be an ideal response?
Add the integers.-89 + (-30)
A. 119 B. -119 C. -120 D. 120
Solve.The length of a rectangle is 112 in. and the width is 94 in. Find its perimeter.
A. 206 in. B. 318 in. C. 412 in. D. 10,528 in.