Find the triple scalar product (u x v) ? w of the given vectors.u = -5i - 3j + 4j; v = 7i - 8j + 10k; w = 5i - 4j - 10k
A. 72
B. -912
C. -812
D. -192
Answer: B
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Solve the problem. Find the magnitude of the torque in foot-pounds at point P for the following lever:
= 10 in. and 
= 5 lb
A. 
ft-lb
B. 
ft-lb
C. - 
ft-lb
D. 
ft-lb
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.-
A. -|x + 15| B. |x + 15| C. |x - 15| D. -x - 15
Graph the line. Also, give the x-intercept (if any), y-intercept (if any), and slope of the line (if defined).f(x) = - 
x + 2
A. x-intercept: (-10, 0); y-intercept: (0, 2);
slope: 
B. x-intercept: (10, 0); y-intercept: (0, 2);
slope: - 
C. x-intercept: (-10, 0); y-intercept: (0, -2);
slope: - 
D. x-intercept: (10, 0); y-intercept: (0, -2);
slope: 
Identify the graph of the equation as a parabola, circle, ellipse, or hyperbola.x2 = 9 - 9y2
A. Hyperbola B. Parabola C. Ellipse D. Circle