Solve the system by elimination.5 x - y = 114x + y = 16
A. (3, 4)
B. (3, 5)
C. (4, 3)
D. No solution
Answer: A
Mathematics
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Perform the indicated operation. Write the answer in scientific notation.(2.7 × 10-5)(1.6 × 10-7)
A. 4.32 × 1012 B. 4.3 × 1012 C. 4.32 × 10-12 D. 4.32 × 10-2
Mathematics
The nth term of a sequence is given. Calculate the fifth partial sum.an = 
A. - 
B. - 
C. - 
D. - 
Mathematics
Find the domain and range of the inverse of the given function.f(x) = x3 - 2
A. Domain: [0, ?); range: [0, ?) B. Domain: [-2, ?); range: all real numbers C. Domain and range: all real numbers D. Domain: all real numbers; range: [-2, ?)
Mathematics
Find an equation of the tangent line to the curve 
at the point (1, ?).
Mathematics