Write the English phrase as an algebraic expression. Let the variable x represent the number.4 more than 8 times a number
A. 4x + 8
B. 8(4 + x)
C. 8x + 4
D. 12x
Answer: C
Mathematics
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Use the Montonicity Theorem to find where the function is increasing and where it is decreasing.f(x) = 7x - 5
A. Increasing on 
, decreasing on 
B. Decreasing on (-?,?)
C. Increasing on (-?,?)
D. Increasing on (-?, -5], decreasing on [-5, ?)
Mathematics
Use properties of exponents to simplify the expression. Express answer in exponential form.7-3 ? 7
A. -3 ? 72 B. 7-3 C. -72 D. 7-2
Mathematics
Write the form of the partial fraction decomposition of the rational expression. It is not necessary to solve for the constants.
A. 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
Mathematics
Simplify the root. 
A. - x2
B. - 
C. x2
D. 
Mathematics