Solve the problem.In a sample of 70 widgets, 4 were defective. How many defective widgets would you expect in a sample of 420 widgets?
A. 27 widgets
B. 22 widgets
C. 24 widgets
D. 54 widgets
Answer: C
Mathematics
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Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics
Rewrite the expression without the grouping symbols.-(x - 5y)
A. -x - 5y B. -5xy C. -x + 5y D. x + 5y
Mathematics
Solve. Give your answer as a mixed number if appropriate.
= 
A. 138
B. 2
C. 21
D. 28
Mathematics
Find y '.y = (4x3 + 6)(4x7 - 8)
A. 160x9 + 168x6 - 96x B. 16x9 + 168x6 - 96x C. 160x9 + 168x6 - 96x2 D. 16x9 + 168x6 - 96x2
Mathematics