Convert. When necessary, round the answer to two decimal places.138 ounces = ____ pounds Give your answer as a mixed number.

A. 8
B. 8
C. 8
D. 13


Answer: C

Mathematics

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Find curl F.F(x, y, z) = y cos(x)i + x sin(y)j - 9k

A. 0 B. x cos(y)i - y sin(x)j + (x cos(y) + y sin(x))k C. 0i + 0j + (sin(y) - cos(x))k D. (-9 - x)i + (y + 9)j + (x - y)k

Mathematics

Solve.A projection of the annual growth rate (in %) of the number of users of a certain electronic compass is , where t is the number of years after 2000. Sketch the graph of this function from 2000 to 2010. p% growth ratet years after 2000

A.  p% growth rate
t years after 2000
B.  p% growth rate
t years after 2000
C.  p% growth rate
t years after 2000
D.  p% growth rate
t years after 2000

Mathematics

In the diagram below, the sum of the numbers in any 2 small circles is the number in the large circle between them. Complete the diagram so that the same pattern holds.

A.

B.

C.

Mathematics

Graph the pair of parametric equations with the aid of a graphing calculator.x = 4 sin t - sin 4t, y = 4 cos t - cos 4t, 0 ? t ? 2?

A.

B.

C.

D.

Mathematics