Solve the system by the addition method.x2 + y2 = 16x2 - y2 = 16

A. {(0, 4), (0, -4)}
B. {(4, 0)}
C. {(4, 0), (-4, 0)}
D. {(0, 4)}

Answer: C

Mathematics

You might also like to view...

Find the exact value of the expression. Do not use a calculator.sin  - cos 

A.
B.
C. 0
D. 1

View
Mathematics

Graph the parametric equations.x = 2 cos t, y = 5 sin t ; 0 ? t ? 2?

A.

B.

C.

D.

View
Mathematics

Write an equation in standard form using only integers for the line described.The line through (4, 5), parallel to y = - x + 1

A. 2x + 3y = 23 B. 2x + 3y = -23 C. 3x + 2y = -23 D. 2x - 3y = 23

View
Mathematics

Factor by grouping.15x2 - 25x - 6x + 10

A. (15x - 2)(x - 5) B. (15x + 2)(x + 5) C. (5x - 2)(3x - 5) D. (5x + 2)(3x + 5)

View
Mathematics