Perform the indicated operation. Simplify if possible.  +  

A.
B.
C.
D.


Answer: B

Mathematics

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Evaluate the integral.

A.
B.
C.
D. - 

Mathematics

Determine if the equation is an identity. = 

A. Identity B. Not an identity

Mathematics

Solve the problem by writing and solving a suitable system of equations.Barges from ports X and Y went to cities A and B. X sent 30 barges and Y sent 8. City A needs 20 barges and B needs 18. Shipping costs $220 from X to A, $300 from X to B, $400 from Y to A, and $180 from Y to B. $8840 was spent. How many barges went where?

A. 15 from X to A 15 from X to B 6 from Y to A 2 from Y to B B. 18 from X to A 12 from X to B 2 from Y to A 6 from Y to B C. 20 from X to A 10 from X to B 0 from Y to A 8 from Y to B D. 16 from X to A 16 from X to B 4 from Y to A 4 from Y to B

Mathematics

Solve the equation for complex solutions.x2 + x + 6 = 0

A.
B.
C.
D.

Mathematics