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
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Solve the problem.Mark Jakob lives in Tulsa, Oklahoma and plans to attend graduate school to earn his Ph.D. in chemistry. He wants to visit chemistry departments at schools in the following cities: Berkeley, California; Madison, Wisconsin, and Chicago, Illinois. The costs of the one-way flights between these four cities are as follows: Tulsa to Berkeley costs $604; Tulsa to Madison costs $510; Tulsa to Chicago costs $490; Berkeley to Madison costs $817; Berkeley to Chicago costs $699; Chicago to Madison costs $95. What is the minimum cost Mark can pay to visit all the schools and return to Tulsa?
A. $2006 B. $2516 C. $1210 D. $1908
Solve the problem.A solar reflector is made using 26 identical triangular-shaped mirrors, each having sides 
. What is the total surface area of the reflector?
A. 35 sq m B. 28 sq m C. 27 sq m D. 30 sq m
Identify the base and the exponent for the exponential expression.76
A. Base: 7, exponent: 6 B. Base: 6, exponent: 7 C. Base: 6, exponent: 42 D. Base: 42, exponent: 6
The measure of ?X is 12° more than three times ?Y . If ?X and ?Y are supplementary; find the measure of ?X and classify it as acute, right, obtuse or straight.
What will be an ideal response?