Multiply. If the result is an improper fraction, write it as a mixed number.
? 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.Find a field G = P(x, y)i + Q(x, y)j in the xy-plane with the property that at any point (a, b) ? (0, 0), G is a unit vector pointing away from the origin.
A. 
B. xi + yj
C. - 
D. 
Mathematics
Find the identical expression for the following.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve.The complement of an angle measures 36° less than the angle. Find the measure of the angle.
A. 153° B. 63° C. 144° D. 37°
Mathematics
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set. x - y + 5z = 53x + z = 0 x + 4y + z = -20
A. {(0, -5, 0)} B. Cramer's rule does not apply since D = 0; ? C. {(0, -5, 5)} D. {(0, 0, -5)}
Mathematics