Solve the system using Cramer's Rule. If D = 0, use another method to complete the solution.7x + 7y = -42-5x + 4y = -24
A. {(-1, -5)}
B. {(0, -5)}
C. ?
D. {(0, -6)}
Answer: D
Mathematics
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Use the given values of a and b and express the given limit as a definite integral.
?xk, a = 4, b = 5
A. 
dx
B. 
dx
C. 
dx
D. 
dx
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Use the Venn diagram below to find the number of elements in the region.
n(C')
A. 29 B. 39 C. 24 D. 14
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Find the product.7x(x + 7)(x - 2)
A. 7x2 + 35x - 98 B. 7x3 + 98x2 - 98x C. 7x3 + 63x2 - 98x D. 7x3 + 35x2 - 98x
Mathematics
Recognize the elementary row operation used and determine the missing entry.
? 
A. 4
B. - 
C. -4
D. 
Mathematics