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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A. (4, 2) B. {(a, b)|a = 4b + 2} C. No solution D. {(a, b)|a + 4b = 2}

Mathematics

Simplify the expression using the products to powers rule.(-5a)3

A. -125a B. -15a3 C. -15a D. -125a3

Mathematics

Solve the problem. Use 3.14 for ?. Round your answer to the nearest hundredth.Glenda wants to glue glitter over a piece of felt shaped like a parallelogram with a height of 32 in. and a base of 54 in. If the glitter costs $0.90 per ft2, how much will it cost to cover the felt?

A. $1555.2 B. $43.20 C. $10.80 D. $129.60

Mathematics

Find a cubic polynomial in standard form with real coefficients having the given zeros.1 and -2 + 2i

What will be an ideal response?

Mathematics