Solve the system by elimination.x2 + y2 = 4x2 - y2 = 4

A. (2, 0), (2, 2)
B. (2, 2), (-2, 2)
C. (2, 0), (-2, 0)
D. (-2, 0), (-2, 2)

Answer: C

Mathematics

You might also like to view...

Provide the appropriate response.Suppose that the complete graph of a cubic function shows that -3, 3, and 8 are the x-intercepts, and the end behavior is described by f(x) ? ? as x ? -? and f(x) ? -? as x ? ?. Find the solution set of f(x) < 0.

A. (-?, -3) ? (3, 8) B. (-?, -3) ? (8, ?) C. (-3, 8) D. (-3, 3) ? (8, ?)

View
Mathematics

Solve using the zero-factor theorem.(2y + 29)(5y + 12) = 0

A. - , -  
B. ,  
C. - , -  
D. 27, 7

View
Mathematics

Find the circumference and area of a circle having the given diameter or radius. Use 3.14 for ?. Round your results to the nearest tenth.r = 4.5 in.

A. 14.1 in.; 56.5 in.2 B. 14.1 in.; 254.3 in.2  C. 28.3 in.; 28.3 in.2  D. 28.3 in.; 63.6 in.2 

View
Mathematics

By using a graphing utility to complete the following table. Round your answer to four decimal places.  x 0.8 1.0 1.2 1.4 1.6 1.8 2.0  y1 --- --- --- --- --- --- ---  y2 --- --- --- --- --- --- ---

A. ?

 x 0.8 1.0  1.2 1.4  1.6 1.8  2.0
 y1 2.4650 3.4082 5.3319 - 11.6814 -68.4797 -8.6876 -4.5880
 y2 2.4650 3.4082 5.3319 - 11.6814 -68.4797 -8.6876 -4.5880
?
B. ?
 x  0.81.0  1.2 1.4 1.6 1.8 2.0
 y1 - 2.4650 3.4082 5.3319 11.6814 -68.4797 -8.6876 -4.5880
 y2 - 2.4650 3.4082 5.3319 11.6814 -68.4797 -8.6876 -4.5880
?
C. ?
 x  0.8 1.0 1.2 1.4 1.6 1.8 2.0
 y1 2.4650 3.4082 5.3319 11.6814 - -68.4797 -8.6876 -4.5880
 y2 2.4650 3.4082 5.3319 11.6814 - -68.4797 -8.6876 -4.5880
?
D. ?
 x  0.8  1.0  1.2 1.4 1.6 1.8 2.0
 y1 2.4650 3.4082 - 5.3319 11.6814 -68.4797 -8.6876 -4.5880
 y2 2.4650 3.4082 - 5.3319 11.6814 -68.4797 -8.6876 -4.5880
?
E. ?
 x 0.8 1.0 1.2 1.4 1.6 1.8 2.0
 y1 2.4650 3.4082 5.3319 11.6814 -68.4797 -8.6876 -4.5880
 y2 2.4650 3.4082 5.3319 11.6814 -68.4797 -8.6876 -4.5880
?

View
Mathematics