Write the number in scientific notation.8,996,720
A. 8.99672 × 101
B. 8.99672 × 107
C. 8.99672 × 106
D. 8.99672 × 10-6
Answer: C
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Use < or > for ? to write a true sentence. Draw a number line if necessary.783 ? 791
A. < B. >
Solve the problem.A forest ranger at Lookout A sights a fire directly north of her position. Another ranger at Lookout B, exactly 2 kilometers directly west of A, sights the same fire at a bearing of N41.2°E. How far is the fire from Lookout A? Round your answer to the nearest 0.01 km.
A. 2.28 km B. 2.18 km C. 2.32 km D. 2.25 km
Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 
D. 
Solve the problem.The annual revenue and cost functions for a manufacturer of grandfather clocks are approximately 
and 
, where x denotes the number of clocks made. What is the maximum annual profit?
A. $1,180,000 B. $1,480,000 C. $1,380,000 D. $1,280,000