Solve by substitution and check. x + 2y = -4 -2x + 3y = -6
A. (0, -2)
B. No solution
C. (1, -3)
D. (2, 0)
Answer: A
Mathematics
You might also like to view...
Use the graph of population change per year for a metro area to answer the question. 
In which two years did the population of the metro area increase?
A. 1998 and 1999 B. 1999 and 2000 C. 1997 and 2001 D. 2000 and 2001
Mathematics
Express the area of the region bounded by the given line(s) and/or curve(s) as an iterated double integral.The coordinate axes and the line 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the spherical coordinate integral.
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Solve and, when appropriate, round the answer to the nearest tenth.A manufacturer's cost is given by C = 400 
+ 200, where C is the cost and n is the number of parts produced. How many parts are produced when the cost is $4600?
A. 121 B. 10,648 C. 4400 D. 1331
Mathematics