Write the equation in terms of a rotated x'y'-system using ?, the angle of rotation. Write the equation involving x' and y' in standard form.14x2 + 12
xy + 2y2 - 17 = 0; ? = 30°
A. 
- 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= -1
Answer: B
Mathematics
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Graph the solution set of the inequality, where x is an integer, on the number line.x + 3 > 1
A. 
B. 
C. 
D. 
Mathematics
Find the phase shift of the function.y = 4 cos 
A. 
units to the left
B. 
units to the right
C. 
units to the left
D. 
units to the right
Mathematics
For the pair of functions, perform the indicated operation.f(x) = 
, g(x) = 
Find (f ? g)(x).
A. (2x + 5)(25x - 16)
B. (2x + 5)(5x - 4)
C. (
)(
)
D. (5x - 4)(
)
Mathematics
Solve by extracting square roots.x2 + 216 = 0
A. {± 
i}
B. {± 6
i}
C. {± 6
}
D. {± 12
i}
Mathematics