Write a matrix to display the information.Factory A makes 9 model-A, 4 model-D, and 5 model-M train sets. Factory B makes 8 model-A, 4 model-D, and 7 model-M train sets. If model-A sells for $16, model-D for $21, and model-M for $36, write a 2 x 3 matrix to summarize the income by model.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves about the given lines.y = 2x,
y = x2; revolve about the y-axis
A. 
?
B. 
?
C. - 
?
D. 
?
Mathematics
Provide an appropriate response.To complete the square of 2x2 + 4x = 8, is it ever a good idea to divide by the coefficient of x2?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the symmetries, if any, of the graph of the equation. Do not graph the equation.
?
?
A. about the x-axis B. about the origin C. about the y-axis
Mathematics
Use the change-of-base formula and a calculator to evaluate each logarithm.log2.8 284
A. 2.4533 B. 5.4865 C. 101.4286 D. 0.1823
Mathematics