Determine whether the three points are the vertices of a right triangle.(-5, 2), (0, 2), (0, 4)
A. Yes
B. No
Answer: A
Mathematics
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Ohm's Law for the current I in a circuit with voltage E, resistance R, capacitance reactance XC, and inductive reactance XLis 
Use this law to solve the problem.Find E if 
R = 3, XL= 8, and XC= 4.
A. -57i B. -25i C. 25i D. 57i
Mathematics
Evaluate the algebraic expression for the indicated variable.-4x2 + 4y2 for x = 3, y = -2
A. -52 B. -20 C. 4 D. -44
Mathematics
The reduced row echelon form of the augmented matrix of a system of equations is given. Find the solutions of the system. 
A. No solution B. (13,- 9, 4, 0) C. (13 + 3w, -9, 4 - 2w, w) for any real number w D. (13 - 3w, -9, 4 + 2w, w) for any real number w
Mathematics
Approximate to the nearest thousandth, using a calculator.
A. 0.014 B. 0.001 C. 0.140 D. 1.400
Mathematics