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 Sundays and holidays, , the company must move 14 tons of mail, 9 tons of medical supplies, and 11 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?
; 3 passenger planes, 1 transport plane, and 4 commuter planes.
You might also like to view...
Find the unit tangent vector T and the principal unit normal vector N. r(t) = (t2 - 8)i + (2t - 2)j + 4k
A. T = 
i + 
j; N = 
i + 
j
B. T = 
i + 
j; N = 
i - 
j
C. T = 
i - 
j; N = - 
i - 
j
D. T = 
i + 
j; N = 
i - 
j
Solve the problem.Find the point on the sphere 
that is farthest from the point 
A. 
B. 
C. 
D. 
Solve the problem.The following information pertains to a bakery which makes donuts.
Make a scatterplot of the data. Then graph the following four functions on the same coordinate system: 
; 
; 
; 
. Which function best models
the profit for x cases of donuts? A. f1 B. f4 C. f3 D. f2
Solve the rational equation. If there is no solution, state this as your answer.
+ 
= 
A. {1} B. {-7, -1} C. {-7, 1} D. no solution