Express the number in scientific notation.549
A. 5.49 × 102
B. 5.49 × 103
C. 5.49 × 101
D. 5.49 × 10-2
Answer: A
Mathematics
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Solve.A square shed covers an area of 789 sq ft. What is the length of each side of the shed? (Round to the nearest tenth.)
A. 197.3 feet B. 188.2 feet C. 28.1 feet D. 32.4 feet
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Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.-5
? 
A. 14
B. - 14
C. - 6
D. 6
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Graph the ellipse and label the center.
+ 
= 1
A. C(0, 4)
B. C(0, -4)
C. C(-4, 0)
D. C(4, 0)
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Perform the indicated operation.(-6n3)(-4n7)
A. -10n10 B. -10n21 C. 24n10 D. 24n21
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