Find the center and the radius of the circle.(x - 4)2 + (y + 3)2 = 64
A. (4, -3), r = 8
B. (3, -4), r = 64
C. (-4, 3), r = 64
D. (-3, 4), r = 8
Answer: A
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 
for r(t) = (10 sin 3t)i - (3 cos 3t)j + (10 csc 3t)k
A. a
= 90i + 90k
B. a
= -90i + 90k
C. a
= -90i - 90k
D. a
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Evaluate.11P4
A. 1,663,200 B. 3960 C. 10,080 D. 7920
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A. {-2, 2, 6} B. {-2, 2, -6} C. {2, 6} D. {-2, 2}
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Find the best buy (based on cost per unit).Brand A: 20 oz for $4.60Brand B: 15 oz for $3.30
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Mathematics