Solve.7x - 7 = 21
A. 21
B. 25
C. 10
D. 4
Answer: D
Mathematics
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A. 
B. 
C. 
D. 
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Graph the values of x that satisfy the conditions given.x ? 2 or x ? 7
A. 
B. 
C. 
D. 
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Calculate the flow in the field F along the path C.F = - 
i + 
j + 
k , C is the curve 
0 ? t ? 1
A. 0
B. 
C. 
D. 
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Simplify the expression.
A. sin x B. -cos x C. cos x D. -sin x
Mathematics