Solve the equation by completing the square.3x2 - 2x - 5 = 0
A. 
, -1
B. 
, 0
C. 
, 1
D. 
, -1
Answer: A
Mathematics
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Simplify the algebraic expression.9a + 6 - 3a
A. 12a + 6 B. 12a C. 6a + 6 D. -6a + 6
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = 3t, y = t + 7
A. y = 3x - 7
B. y = 
+ 7
C. y = 3x + 7
D. y = 
- 7
Mathematics
Solve the problem.Find the acute angle ? (in degrees) that satisfies the equation sin ? = 
.
A. 135° B. 120° C. 45° D. 60°
Mathematics
Determine if the ordered pair is a solution to the given system.
; (8, 7)
A. Yes B. No
Mathematics