Use the properties of determinants to find the value of the second determinant, given the value of the first.
= 28
= ?
A. 56
B. 28
C. -28
D. -56
Answer: A
Mathematics
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Find the real solutions, if any, of the equation. Use the quadratic formula.9x2 - 36x + 36 = 0
A. 
B. no real solution
C. 
D. 
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Write an equation to describe the relationship and solve the problem.y varies directly as x. If y = 4 when x = 48, find y when x = 24.
A. y = 12x; 2
B. y = 
x; 24
C. y = 
x; 2
D. y = 
x; 48
Mathematics
Evaluate the logarithm without using a calculator.log9 
A. - 2
B. 2
C. 
D. - 
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Solve the initial-value problem
Mathematics