Solve the system by the elimination method.x + y = 5x - y = 9
A. {(6, -1)}
B. {(-7, -1)}
C. {(7, -2)}
D. ?
Answer: C
Mathematics
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Apply Green's Theorem to evaluate the integral.
(7x + y3) dx + (3xy2 + 3y) dyC: Any simple closed curve in the plane for which Green's Theorem holds
A. -2 B. There is not enough information to evaluate the integral. C. 0 D. 2
Mathematics
Multiply.(5i)(8i)
A. -40 B. 13 C. 40 D. -13
Mathematics
Solve the problem.In a certain city, the bus system carried a total of 14,400,000,000 passengers.Write the number in scientific notation.
A. 1.44 × 109 B. 1.44 × 1011 C. 14.4 × 1010 D. 1.44 × 1010
Mathematics
Perform the indicated operation and reduce to lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics