Simplify the expression.
A. csc2 x + tan2 x
B. 1
C. sin x + cos x
D. csc x tan x
Answer: B
Mathematics
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Choose the most reasonable unit of measure.An adult: 78 
(mg, g, or kg)
A. kg B. g C. mg
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Solve.Find the area of the rectangle.
A. 60 sq. ft
B. 30 sq. ft
C. 30
sq. ft
D. 15
sq. ft
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Answer the question about the given function.Given the function f(x) = -7x2 - 14x - 8, list the y-intercept, if there is one, of the graph of f.
A. -8 B. -22 C. -29 D. -1
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Simplify the expression. Assume that all variables represent positive real numbers.815/4
A. 243 B. 19,683 C. 2187 D. 6561
Mathematics