Solve the system by the addition method.x2 - y2 = 21x2 + y2 = 47
A. {(
, 
), (-
, 
)}
B. {(
, 
), (-
, -
)}
C. {(0, 0)}
D. {(
, 
), (-
, 
), (
, -
), (-
, -
)}
Answer: D
Mathematics
You might also like to view...
Predict the general, or nth term, an, of the sequence.-3, 9, -27, 81, . . .
A. -3 + (-3)n B. -9n-1 C. -3(-3)n D. -3(-3)n-1
Mathematics
Match the given graph with its equation.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
If the following is a polynomial function, then state its degree and leading coefficient. If it is not, then state this fact.f(x) = -11 - 15x + 11x2 + 17x3 + 3x4
A. Degree: 4; leading coefficient: -11 B. Not a polynomial function. C. Degree: 4; leading coefficient: 3 D. Degree: -11; leading coefficient: 3
Mathematics
Graph the equation by plotting points.y = x + 1
A. 
B. 
C. 
D. 
Mathematics