Find curl F.F(x, y, z) = ei + ln(2y + z)j + xyezk
A. i - yezj + 0k
B. i + yezj + 1k
C. i - yezj + 1k
D. i -yezj + 0k
Answer: A
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A. x - 3y - 4z = -8 B. x + 3y - 4z = -8 C. x + 3y + 4z = -8 D. x - 3y + 4z = -8
Solve the problem.A quality-control inspector examined 250 calculators and found 12 of them to be defective. At this rate, how many defective calculators will there be in a batch of 23,500 calculators?
A. 1128 B. 3000 C. 8 D. 94
Use the vertex and intercepts to sketch the graph of the quadratic function.f(x) = - 6x + 5 + x2
A.
B.
C.
D.
Use the quadratic formula to solve the equation. Simplify any radicals.a2 - 8a + 15 = 0
A. {5, 3} B. {± 1} C. {12, 3} D. {-5, -3}