Use Cramer's Rule to solve the system of equations. Use technology to compute the determinants involved.
A. {(5, 0, 9)}
B. {(2, 9, 2)}
C. {(4, 2, 9)}
D. {(4, -2, -9)}
Answer: C
Mathematics
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Evaluate the expression. ? |-27| ?
A. -27 B. 54 C. 27 D. -25 E. -28
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Solve the problem.An architect needs to design a rectangular room with an area of 92 ft2. What dimensions should he use in order to minimize the perimeter? Round to the nearest hundredth, if necessary.
A. 9.59 ft × 9.59 ft B. 23 ft × 23 ft C. 18.4 ft × 92 ft D. 9.59 ft × 23 ft
Mathematics
If 
use the definition of derivative to find 
e. None of these
Mathematics
Write a numerical expression for the phrase and simplify it.The sum of 1 and -9, divided by the product of 1 and -4
A. 1 + 
; 3
B. 
; - 
C. 1 + 
; - 
D. 
; 2
Mathematics