Find the area of the specified region.Inside the limacon r = 8 + 4 sin ?
A. 144?
B. 72?
C. 144? - 64
D. 72? + 64
Answer: B
Mathematics
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Evaluate or simplify the given expression.sin(2 sin-1 x)
A. 2x
B. 2x - 2x3
C. 2x
D. x
Mathematics
Is the ordered pair a solution of the given system of equations?(2, 1), 
A. Yes B. No
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.98x2 - 112x + 32
A. 2(7x - 4)(7x + 4) B. 2(7x - 4)2 C. 2(7x + 4)2 D. prime
Mathematics
Find the vertices of the ellipse.16x2 + 64x + 25y2 - 100y - 236 = 0
A. (-6, 2), (2, 2) B. (-5, 2), (1, 2) C. (-7, 2), (3, 2) D. (2, -7), (2, 3)
Mathematics