Set up the percent proportion for the application problem. Do not try to solve for any unknowns.A chemical is 78% pure. In 760 grams of the chemical, how much is pure?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: A
Mathematics
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Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that 
and that the value of the "inner" inverse trigonometric expression represents an angle ? such that 
sin (tan-1 u)
A. 
B. 
C. 
D. u
Mathematics
Use < or > for ? to write a true sentence. Draw a number line if necessary.41 ? 37
A. < B. >
Mathematics
Perform the indicated operation.
?
?
__________two
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the exact value of the expression.sin 265° cos 25° - cos 265° sin 25°
A. - 
B. 
C. - 
D. - 
Mathematics