The given function is one-to-one. Find f-1(x).f(x) = 
A. f-1(x) =
B. f-1(x) =
C. f-1(x) =
D. f-1(x) =
Answer: A
Mathematics
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Find the product.-7x3(7x7 + 3x5)
A. -49x10 + 3x5 B. -70x10 - 70x8 C. -70x3 D. -49x10 - 21x8
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Determine if the given polar coordinates represent the same point.(8, ?/3), (-8, -2?/3)
A. No B. Yes
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Test the equation for symmetry with respect to the given axis, line, or pole.r = 3 + 3 cos ?; the line ? =
A. Symmetric with respect to the line ? =
B. May or may not be symmetric with respect to the line ? =
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Solve the right triangle using the information given. Round answers to two decimal places, if necessary.b = 2, c = 7; Find a, ?, and ?.
A. a = 7.28 ? = 16.6° ? = 73.4° B. a = 6.71 ? = 73.4° ? = 16.6° C. a = 7.28 ? = 17.6° ? = 72.4° D. a = 6.71 ? = 16.6° ? = 73.4°
Mathematics