Solve the problem.Evaluate 
at (x, y, z) = (3, 3, 4) for the function u = p2q2 - r; p = y - z, 
A. 56
B. -84
C. 224
D. 112
Answer: D
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Find the divergence of the field F.F = 5x5i - 6xyj - 8xzk
A. 25x4 - 6y - 8z B. 25x4 - 14x + 11 C. 25x4 - 14x D. 11
Answer the question according to what the textbook states.Which of these is NOT listed as a tip to help you succeed in this course?
A. Choose to attend all class periods and do your homework. B. Form study groups and/or exchange names and e-mail addresses. C. Read your textbook after you attend class. D. Know how to get help if you need it.
Factor completely, or state that the trinomial is prime.5x4 + 10x3 - 75x2
A. (5x3 + 15x)(x - 5) B. 5x2(x - 3)(x + 5) C. 5x2(x + 3)(x - 5) D. prime
Solve. Express the result in scientific notation. Round to the nearest hundredth, if necessary.If the density of a substance is 9.89 × 10-3 tons per cubic foot, what would be the mass of 
cubic feet of this substance. (Use the formula D = 
.)
A. 5.29 × 10-6 tons B. 0.53 × 10-7 tons C. 5.29 × 10-7 tons D. 5.29 × 10-8 tons