Identify the pairs of complementary or supplementary angles, as indicated.Supplementary

A. ?AOC & ?AOD;  ?AOD & ?DOB
B. ?COB & ?BOD;  ?BOD & ?AOD
C. ?AOC & ?AOD;  ?AOD & ?DOB;  ?DOB & ?COB;  ?COB & ?AOC
D. ?AOD & ?COB;  ?AOC & ?DOB

Answer: C

Mathematics

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Evaluate the integral.Use the formula  to evaluate the integral. 

A. x cot-1 x - ln + C
B. x cot-1 x + ln + C
C. x cot-1 x + ln x + C
D. x cot-1 x + x + C

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Find all the spanning trees in the graph.

What will be an ideal response?

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Solve the equation by expressing each side as a power of the same base and then equating exponents.4(3x + 5) = 

A.
B. {-3}
C. {128}
D. {3}

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Solve the system.



a. y = 3, y = 2
b. x = 2, y = 9
c. x = 1, y = 2
d.
e. no solution

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