Solve the quadratic equation by completing the square.x2 + 3x - 9 = 0

A. x = 
B. x = 
C. x = 
D. x = -3 ± 3


Answer: A

Mathematics

You might also like to view...

Provide an appropriate response.Equation of a line: 5x + 3y = 30(a) Solve for y.(b) Find y when x = 4.

A. (a) y = - x + 10
(b) y = 10
B. (a) y = x + 10
(b) y = 
C. (a) y = - x + 10
(b) y = 
D. (a) y = - x + 30
(b) y = 

Mathematics

Write the equation of a sine function that has the given characteristics.The graph of y = , shifted 3 units to the right

A. y = 
B. y =  + 3
C. y = 
D. y =  - 3

Mathematics

Determine the maximum number of turning points of f.f(x) = 8x3 + 2x2 - 5x - 6

A. 3 B. 2 C. 0 D. 8

Mathematics

Governor Anne Kelly won the election by a ratio of 10 to 7. If she got 720,000 votes, how many did the other candidate receive?

What will be an ideal response?

Mathematics