Find the mean.Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mean retirement age. Round your answer to one decimal place if necessary. 55 67 62 54 63 58 60 51 56
A. 57.2
B. 58.4
C. 58.0
D. 57.8
Answer: B
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The manager of an electronics store maintains an inventory of IBM-compatible computers and Macintosh computers in the quantities given in the table below. There is room in the store to stock at most 62 computers. The manager receives commissions on the sale of each computer in the amounts given in the table. If the manager can sell all of the computers, how many of each should she stock to maximize her commissions? InventoryIBMMacintoshMinimum1831Maximum3150Commission$50$40?
A. no IBM computers and 62 Macintosh computers: $1,922 B. 31 IBM computers and 50 Macintosh computers: $3,550 C. 31 IBM computers and 31 Macintosh computers: $2,790 D. none of these
Decide whether the dose is reasonable or unreasonable. If it is unreasonable, indicate whether it is too much or too little.Dissolve the 250-gram tablet in 1.7 milliliters of water.
A. Reasonable B. Unreasonable, too little C. Unreasonable, too much
Find the domain and range of the inverse of the given function.f(x) = 
A. Domain and range: (-?, ?) B. Domain: (-?, ?); range: [0, ?) C. Domain: [6, ?); range: [0, ?) D. Domain: [0, ?); range: (-?, ?)
Find the exact value of the expression.sin
A. 
B. - 
C. 
D. 