Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?

A. 20
B. 100
C. 10
D. 500


Answer: C

Mathematics

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Use the root test to determine if the series converges or diverges.

A. Converges B. Diverges

Mathematics

Find the equilibrium solution of the equation. Use a sketch of the direction field for  to determine whether the equilibrium is stable.y'(t) + 2u + 6 = 0

A. y = ; unstable
B. y = - ; stable
C. y = 3; stable
D. y = -3; unstable

Mathematics

Find all possible functions with the given derivative.y' = 

A. 5 + C
B.  + C
C.  + C
D.  + C

Mathematics

Add or subtract as indicated. Simplify the result, if possible. -  

A. - 
B.
C.
D.

Mathematics