Solve the equation.21 = -7k
A. k = 1
B. k = -28
C. k = 28
D. k = -3
Answer: D
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Find the derivative of the function at the point p in the direction of a.f(x, y) = xy2, p = (2, 3), a = 4i + 3j
A. 15
B. 
C. 
D. 
Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__tttt0613191206__f1q16g7.jpg" alt="" style="vertical-align: -4.0px;" />
A. 5
B. -10
C. 10
D. -5
Rwhere R is the parallelogram bounded by the lines 
Solve the inequality graphically. Round solutions to the nearest tenth if necessary.
? 3
A. {x
}
B. {x
}
C. {x
}
D. {x
}
Solve the inequality graphically, numerically, or symbolically, and express the solution in interval notation. Where appropriate, round to the nearest tenth. ?b - 2? + 1 > 18
A. (-?, -21) ? (15, ?) B. (-15), (19) C. (-?, -15) ? (19, ?) D. (-?, -15) ? (21, ?)