Solve the system of equations by the substitution method.
A. (0, 0)
B. 
C. (2, 2)
D. 
Answer: D
Mathematics
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Prove the identity.tan(x + y) + tan(x - y) = 
What will be an ideal response?
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Express the percentage as a decimal.67.6%
A. 0.676 B. 676.0 C. 0.0676 D. 67.6 E. 0.000676
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For the functions f(x) and g(x), determine the domain of (f/g)(x) (the quotient of f and g).f(x) = 
, g(x) = -6x
A. {x ? x is a real number and x ? -8} B. {x ? x is a real number and x ? 0} C. {x ? x is a real number} D. {x ? x is a real number and x ? 8}
Mathematics
Find the value. Give an approximation to four decimal places.ln 43,100,000
A. 17.5790 B. 6.0661 C. 0.0567 D. 7.6345
Mathematics