For the given equation, state whether the directrix is vertical or horizontal and give its location in relation to the pole.r = 
A. Vertical, 16 units to the right of the pole
B. Vertical, 
units to the left of the pole
C. Vertical, 
units to the right of the pole
D. Vertical, 
units to the left of the pole
Answer: C
Mathematics
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Find the eccentricity of the ellipse.100x2 + 25y2 = 2500
A. 
B. 
C. 
D. 
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Graph the function.y = 
(x - 4)2 - 3
A. 
B. 
C. 
D. 
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Determine the size of matrix A and tell whether it is a square matrix, row matrix, column matrix, or none of these.A = [3 -3 9 7 ]
A. 1 × 4; row matrix B. 4; row matrix C. 4 × 1; column matrix D. 1; square matrix
Mathematics
Solve the equation on the interval 0 ? ? < 2?.cos2 ? = 3(1 - sin ?)
A. 
B. {0}
C. 
D. {?}
Mathematics