Determine whether the statement is true or false.-|-2| ? -2
A. True
B. False
Answer: A
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An air freight company has three types of aircraft which carry three types of cargo. The payload, in tons, is summarized in the table below. 
On Saturdays, the company must move 23 tons of mail, 16 tons of medical supplies, and 17 tons of freight. This system of equations can be represented by the matrix: 
. Reduce this matrix to calculate how many aircraft of each type should be used.
What will be an ideal response?
Determine whether the pair of vectors is orthogonal.
, 
A. Yes B. No
Divide.
A. -2x2 - 2x - 5 + 
B. x2 - 5 + 
C. -2x2 - 2x - 5 + 
D. -2x2 - 2x - 5
Solve the problem. If the base of the log is not specified, assume that it is 10.The loudness of a sound can be approximated by the formula d = 10 log 
, where d is the number of decibels. The higher the value of d, the louder the sound. Find the number of decibels when 
and 
A. 14 decibels B. 10,000 decibels C. 40 decibels D. 4 decibels