Use the substitution method to solve the system.9x - 7y = 212x - 5y = 15
A. (0, -2)
B. (0, -3)
C. (-1, -2)
D. No solution
Answer: B
Mathematics
You might also like to view...
Solve the problem.Find the equation for the tangent plane to the surface 
at the point 
A. -10x - 10y + 12z = 8 B. x + y + z = 8 C. x + y + z = 1 D. -10x - 10y + 12z = 1
Mathematics
Use logarithmic differentiation to find the derivative of y.y = 
A. 3
B. 
+ 
- 
- 
C. 
(ln(3x + 1) + 2ln(x + 2) - ln(x3 + 5) - ln(x + 7))
D. 
Mathematics
Find an equation for the graph.
A. y = -4 sin (2x)
B. y = -4 cos 
C. y = -4 sin 
D. y = -4 cos (2x)
Mathematics
Find the volume of the circular cone. Use 3.14 or 
for ? as indicated and round as indicated. Use 3.14 for ?. Round to the nearest whole number.
A. 94 in.3 B. 848 in.3 C. 636 in.3 D. 424 in.3
Mathematics