Find the Cartesian coordinates of the given point.
A. (-6
, -6
)
B. (-12
, -12
)
C. (6
, -6)
D. (6
, -6
)
Answer: D
Mathematics
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- 
+ . . .
A. ex tan-1 x
B. 
C. 
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The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = sin-1(7t)i + ln(2t2 + 1)j + 
k
A. 
B. 
C. 
D. 0
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A. (-?, 2]
B. [-2, ?)
C. (-?, -2]
D. [2, ?)
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Solve the system by elimination. x - 7y = -539x - 8y = -37
A. {(2, 9)} B. {(-3, 9)} C. {(3, 8)} D. ?
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