Solve the problem.A pulley of radius 9 cm rotates 9 times in 128 sec. Find the angular velocity of the pulley.

A.  radians/sec
B.  radians/sec
C.  radians/sec
D.  radians/sec

Answer: B

Mathematics

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Find the cardinal number of the set.Given:n(A ? B ? C)= 165n(A ? B ? C)= 22n(A ? B)= 46n(A ? C)= 43n(B ? C)= 41n(A)= 111n(B)= 82n(C)= 80Find n(A' ? B ? C)

A. 18 B. 20 C. 21 D. 19

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Mathematics

Solve the equation.- z2 - z = - 

A.
B.
C.
D.

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Mathematics

Combine like terms.p - p

A. 4p2
B. 4p
C. - p
D. - p2

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Mathematics

Solve the inequality algebraically. Express the solution in interval notation.x4 < 25x2

A. (-5, 0) ? (5, ?) B. (-?, -5) ? (5, ?) C. (-?, -5) ? (0, 5) D. (-5, 0) ? (0, 5)

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Mathematics