Add.-8 + (-7)
A. 15
B. -15
C. -1
D. 1
Answer: B
Mathematics
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Find the vertices and foci of the ellipse.
+ 
= 1
A. Vertices: (0, ±25); Foci: (0, ±20) B. Vertices: (±25, 0); Foci: (±15, 0) C. Vertices: (0, ±25); Foci: (0, ±15) D. Vertices: (±25, 0); Foci: (±20, 0)
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Find the indicated term of the geometric sequence.a1 = 3, r = -1; Find a4.
A. a4 = -27 B. a4 = -3 C. a4 = 0 D. a4 = 3
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Find the exact value, given that sin A = -4/5 with A in quadrant IV, 
with B in quadrant III, and 
with C in quadrant II.sin 2C
A. - 
B. 
C. 
D. - 
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Find the expression as the sine or cosine of an angle.
?
?
A. 
B. 
C. 
D. 
E. 
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