Solve the system.
A. (1, 3, 4)
B. (1, 4, 3)
C. (4, 3, 1)
D. (4, 1, 3)
Answer: C
Mathematics
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Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.
A. -cos x B. -sin x C. sin x D. cos x
Mathematics
Calculate the arc length of the indicated portion of the curve r(t).r(t) = 
t3/2i + (4t sin t)j + (4t cos t)k ; -3 ? t ? 7
A. 120 B. 248 C. 200 D. 132
Mathematics
Solve the system of equations. x - y + 4z = 14x + z = 0 x + 4y + z = -4
A. x = 0, y = -1, z = 1 B. x = 0, y = -1, z = 0 C. x = 0, y = 0, z = -1 D. Inconsistent
Mathematics
Determine whether the function is an exponential function.7-x
A. No B. Yes
Mathematics