Solve the problem.If k = 
and k2 - 3k = 18, find x.
A. {
, 
}
B. {
, 
}
C. {
, 
}
D. {6, 
}
Answer: C
Mathematics
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Add or subtract.11 - 15
A. 26 B. 4 C. -4 D. -26
Mathematics
Find the work done by F over the curve in the direction of increasing t.F = 6yi + 
j + (3x + 6z)k; C: r(t) = ti + t2j + tk, 0 ? t ? 2
A. W = 0
B. W = 34 + 
C. W = 34 + 20
D. W = 57 + 20
Mathematics
Solve the problem.If u = -7i - 2j and v = 5i + 7j, find u - v.
A. -13i + 5j B. -14i + 5j C. -2i + 5j D. -12i - 9j
Mathematics
Factor and simplify the expression.sin2x + sin2x cot2x
A. 1 B. sin2x + 1 C. cot2x - 1 D. cot2x + 1
Mathematics