Determine the reference angle for the given angle.? = - 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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The rectangular coordinates of a point are given. Express the point in polar coordinates with 
and 
(0, -4)
A. (4, 90°) B. (4, 0°) C. (4, 270°) D. (4, 180°)
Mathematics
Write the standard form of the equation of the circle with radius r and center (h, k).r = 
; (h, k) = (4, -6)
A. (x - 6)2 + (y + 4)2 = 36 B. (x + 6)2 + (y - 4)2 = 36 C. (x + 4)2 + (y - 6)2 = 6 D. (x - 4)2 + (y + 6)2 = 6
Mathematics
Write an equation in slope-intercept form of the line satisfying the given conditions. Perpendicular to the line x + 4y = -4; containing the point (-4, -2).
A. y = 4x + 18
B. y = - 
x - 1
C. y = 
x - 1
D. y = 4x + 14
Mathematics
Solve the equation. First simplify the expression by combining like terms.7(k - 8) - (6k - 8) = 3
A. - 3 B. - 51 C. - 45 D. 51
Mathematics