Simplify.21 ? 53
A. 250
B. 127
C. 30
D. 1,000
Answer: A
Mathematics
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Write one or more inequalities that describe the set of points.The rectangular solid in the first octant bounded by the planes x = 9, x = 10, y = 3, y = 7, and
(planes excluded)
A. x < y < z B. x < 9, x > 10; y < 3, y > 7; z < 5, z > 10 C. The given planes do not form a rectangular solid D. 9 < x < 10; 3 < y < 7; 5 < z < 10
Mathematics
Express as a single logarithm.logb x - logb y
A. logb
B. log2b
C. logb
D. logb x - y
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Solve the problem.Find sin (?), given that cos (?) = and ? is in quadrant IV.
A. -
B. -
C. -
D. -
Mathematics
Solve the problem.An airplane is cruising at an altitude of 29,023 feet. Express this distance to the nearest hundred meters.
A. 95,800 m B. 18,100 m C. 46,400 m D. 8800 m
Mathematics