First, use front-end rounding to round each number and estimate the answer. Then, find the exact answer.Mr. Buttimer took a plane trip for a total of 5.5 hours. He watched an in-flight movie for 1.84 hours. From the airport, he took a cab ride for 0.78 hour to the train station. Next, he took the train home for 1.98 hours. What was the total time spent traveling?
A. Estimate: 12 hours; exact: 10.1 hours
B. Estimate: 11 hours; exact: 8.26 hours
C. Estimate: 9 hours; exact: 8.26 hours
D. Estimate: 11 hours; exact: 10.1 hours
Answer: C
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Provide an appropriate response. Identify the equation as pure quadratic, incomplete quadratic, complete quadratic, or not quadratic: x2 + 4x - 7 = 0.
A. Incomplete quadratic B. Complete quadratic C. Pure quadratic D. Not quadratic
Solve the absolute value inequality. Write your answer in interval notation.|6k + 9| > -2
A. 
? 
B. 
C. 
D. (-?, ?)
Find the square roots of the number. Approximate the answer to the nearest hundredth whenever appropriate.144
A. 12 B. -12, 12 C. -24, 24 D. 20,736
Graph the quadratic function using its vertex, axis of symmetry, and intercepts.f(x) = -x2 - 2x + 3
A. vertex (-1, -4)
intercepts (1, 0), (- 3, 0), (0, -3)
B. vertex (1, 4)
intercepts (-1, 0), (3, 0), (0, 3)
C. vertex (1, -4)
intercepts (-1, 0), (3, 0), (0, -3)
D. vertex (-1, 4)
intercepts (1, 0), (- 3, 0), (0, 3)