Evaluate the determinant.
A. a2 + b2
B. a2 - b2
C. 0
D. 2ab
Answer: B
Mathematics
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Find the flux of the vector field F across the surface S in the indicated direction.F = 4x2j - z3k; S is the portion of the parabolic cylinder y = 4x2 for which 0 ? z ? 2 and -2 ? x ? 2; direction is outward (away from the y-z plane)
A. -128
B. 128
C. 
D. - 
Mathematics
Solve the problem.The area of the rectangle is represented by y2 + 2y - 35. What is the length?
A. y + 5 B. y - 7 C. y + 7 D. y - 5
Mathematics
Name the method that can be used to prove the triangles are congruent.
A. SSS B. SAS C. The triangles are not congruent. D. ASA
Mathematics
Which metric unit (km, m, cm, or mm) should you use to measure the following item?Metric wrench sizes
A. m B. cm C. mm D. km
Mathematics