Solve the problem.When 5 times a number is subtracted from 7 times the number, the result is 16. Find the number.
A. 11
B. 15
C. 2
D. 8
Answer: D
Mathematics
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Solve the problem. Assume all numbers are approximate unless otherwise stated or the number has been determined by a definition or counting process.The capacitance of a certain element in an electric circuit (in ?F) was determined by calculating the value of 
Calculate this capacitance.
A. 8.0 ?F B. 7.5 ?F C. 7.7 ?F D. 7.3 ?F
Mathematics
Evaluate the integral.
A. 
+ C
B. 
ln 
+ C
C. 
+ C
D. 
+ C
Mathematics
Use the given property of multiplication to rewrite each statement. Commutative property: 5 ? 12 = _____
A. 12 ? 5
B. 12 + 
C. 5 ? 12
D. 5 + 12
Mathematics
Add. Do not use a number line except as a check.- 
+ 
A. - 
B. - 
C. - 
D. - 
Mathematics