Find the expected value.A car agency has found daily demand to be as shown in the table.Find the expected number of customers.

A. 9
B. 12
C. 10
D. 2


Answer: A

Mathematics

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Use =, <, or > to write a true statement.6.4  -8.4

A. <  B. = C. >

Mathematics

Divide.

A. -27x6 + 36x5 - 45x4 B. -3x6 + 4x5 - 5x4 C. -27x10 + 36x9 - 45x8 D. -3x10 + 4x9 - 5x8

Mathematics

Solve the problem.Assume it costs 30 cents to mail a letter weighing one ounce or less, and then 28 cents for each additional ounce or fraction of an ounce. Write a piecewise-defined function P(x) that represents the cost, in cents, of mailing a letter weighing between 0 and 3 ounces.

A. P(x) = { 

B. P(x) = { 

C. P(x) = { 

D. P(x) = { 

Mathematics

Simplify.32 + 92

A. 144 B. 48 C. 24 D. 90

Mathematics