Solve the system by substitution.
+ 
= 4
- 2y = 21
A. {(6, 8)}
B. {(-6, 8)}
C. {(6, -8)}
D. {(-6, -8)}
Answer: C
Mathematics
You might also like to view...
For each set described, write the set in roster form.{x|x is a natural number between 14 and 19}
A. {14, 15, 16, 17, 18} B. {15, 16, 17, 18, 19} C. {15, 16, 17, 18} D. {14, 15, 16, 17, 18, 19}
Mathematics
Solve the equation in the complex number system.x2 - 12x + 52 = 0
A. {6 - 16i, 6 + 16i} B. {10, 2} C. {6 + 4i, 6 - 4i} D. {6 + 4i}
Mathematics
Find the vertex.f(x) = 3x2 + 12x + 13
A. (-2, 1) B. (-1, 2) C. (1, -2) D. (2, -1)
Mathematics
Find the indefinite integral 
and check your result by differentiation.
?
A. 
B. 
C. 
D. 
E. 
Mathematics