Use the substitution method to solve the system. 3x + y = 0-3x + y = -6
A. (-1, -3)
B. (-1, 3)
C. (1, 6)
D. (1, -3)
Answer: D
Mathematics
You might also like to view...
Solve the problem.A woman invested $2000 at 7% (or 0.07) for 8 years. How much did she have in her account at the end of 8 years? 
A. $112 B. $3120 C. $1120 D. $2240
Mathematics
The graph of the following curve is given. Find the area that it encloses.
 FIGURE 1.png)
Mathematics
Divide using synthetic division.
A. 4r2 + 4r + 8
B. r2 + 8r + 4
C. 4r2 - 4r - 8
D. 4r2 + 4r + 
Mathematics
Find the period of the function.y = 2 sin 8x
A. 2
B. 
C. 
D. 2?
Mathematics