Simplify the expression.
- 
A. 
B. - 
C. - 
D. - 
Answer: D
Mathematics
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Translate the expression into the language of algebra. Use the variable x to represent the number.A number decreased by 7
A. x - 7 B. 7 - x C. 7x D. 1 - 7x
Mathematics
Divide.
A. 10.5 B. 20.5 C. 2.05 D. 1.05
Mathematics
Use transformations of the graph of y = x4 or y = x5 to graph the function.f(x) = -2(x - 5)4 + 4 
A. 
B. 
C. 
D. 
Mathematics
Use Descartes' rule of signs to help list the possibilities for the nature of the solutions of the equation. Do not solve the equation.5x2 + 15x - 30 = 0
A. 1 positive solution, 1 negative solution B. 2 positive solutions C. 2 negative solutions D. 1 positive solution, 1 nonreal complex solution E. 1 negative solution, 1 nonreal complex solution
Mathematics