Add.9985 + 8134
A. 18,109
B. 18,019
C. 17,119
D. 18,119
Answer: D
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Determine the power of 10 needed to write the decimal in scientific notation.2,494,000 = 2.494 × 10n
A. 7 B. 6 C. 8 D. 5
Solve the problem.In one area, the lowest angle of elevation of the sun in winter is 21° 7'. A fence is to be built 
away from a plant in the direction of the sun. (See drawing) Find the maximum height, x , for the fence so that the plant will get full sun. Round your answer to the tenths place when necessary.
A. 5.1 ft B. 4.1 ft C. 4.8 ft D. 6.3 ft
Solve the problem.The daily number of visitors v to an amusement park was always at least 833 but never more than 1292. Express this as an inequality.
A. v ? 833 or v ? 1292 B. 833 < v < 1292 C. 833 ? v ? 1292 D. v < 833 or v > 1292
Simplify. Write your answer in the form a + bi, where a and b are real numbers.(4 - 
) + (3 + 
)
A. 7 + 11i B. 7 - 11i C. 7 - 3i D. 7 + 3i