Use the given information to find the exact value of the expression.sin ? = 
, ? lies in quadrant I, and cos ? = 
, ? lies in quadrant I
Find cos (? + ?).
A. 
B. 
C. - 
D. 
Answer: D
Mathematics
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The associative and commutative properties for addition allow for three or more integers to be added in any order. Find the given sum.15 + (-4) + 8 + (-7)
A. 10 B. -4 C. 12 D. 34
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Solve the equation. Use the multiplication axiom.
= 13
A. {65} B. {18} C. {-18} D. {-65}
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Find the absolute value.|-23|
A. -23 B. 46 C. 0 D. 23
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Graph the function.f(x) = -2log4x
A. 
B. 
C. 
D. 
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