Simplify and write the answer using scientific notation.(6.22 × 102)(6.50 × 102)
A. 4.04 × 105
B. 4.04 × 104
C. 6.50 × 104
D. 6.50 × 105
Answer: A
Mathematics
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A. 
B. 
C. 
D. 2
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Solve the problem. Use 3.14 for ?.Find the area of the circular racetrack.(Round to the nearest foot.) r = 95 ft R = 130 ft 
A. 24,728 ft2 B. 28,339 ft2 C. 15,386 ft2 D. 53,066 ft2
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Find the period of the function.y = 0.5 sin 
A. 0.5
B. 12?
C. 24?
D. 
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Graph the system of linear inequalities. Tell whether the graph is bounded or unbounded, and label the corner points.
A. bounded;
corner points (0, 0), (0, 3), (3, 0)
B. unbounded;
corner points (0, 3), (6, 0)
C. bounded;
corner points (3, 0), (0, 3), (6, 0)
D. unbounded;
corner points (0, 3), (3, 0)
Mathematics