Solve by the substitution method.-4x + 7y = -28 -2x - 2y = 8
A. ?
B. {(0, -4)}
C. {(0, -3)}
D. {(-1, -3)}
Answer: B
Mathematics
You might also like to view...
Set up an integral for the length of the curve.y = 
, - 
? x ? 
A. 
B. 
C. 
D. 
Mathematics
Use implicit differentiation to find dy/dx and d2y/dx2.x2 + y2 = 5, at the point (2, 1)
A. 
= - 2; 
= 1
B. 
= 2; 
= 5
C. 
= - 2; 
= -5
D. 
= - 
; 
= 0
Mathematics
Solve the rational inequality.3 + 
- 
? 0
A. (-?, -2] ? 
B. 
C. 
D. [-2, 0) ? 
Mathematics
Write the equation of a sine function that has the given characteristics.The graph of y = 
, shifted 8 units upward
A. y = 
B. y = 
+ 8
C. y = 
D. y = 
- 8
Mathematics