Add or subtract as indicated. Write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Provide an appropriate response.Express in scientific notation: 6,000,000
A. 6 × 10-7 B. 6 × 10-6 C. 6 × 107 D. 6 × 106
Mathematics
Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the y-axis 
A. 12? B. 6? C. 15? D. 9?
Mathematics
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.16x2 + 9
A. (4x + 3)(4x - 3) B. (4x - 3)2 C. (4x + 3)2 D. prime
Mathematics
Solve the problem.The graph shows the sales of a particular brand of appliance from 1992 to 2010, where 1992 corresponds to 
. Is the slope of the line in the graph positive or negative? Explain. 
A. Negative; The sales are decreasing. B. Positive; The sales are increasing.
Mathematics