Write the phrase as a variable expression. Use x for the unknown number.The product of -32 and the sum of a number and 12
A. -384x
B. -32 + 12x
C. -32(x + 12)
D. -32x + 12
Answer: C
Mathematics
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Simplify the radical. Assume that all variables represent positive real numbers.
A. 
B. 2y
C. 
D. 
Mathematics
Plot and interpret the appropriate scatter diagram.The table shows the study times and test scores for a number of students. Draw a scatter plot of score versus time treating time as the independent variable. 
Effect of Study on Test Score
Time (min)
A. Effect of Study on Test Score
| Time (min) |
test scores.
B. Effect of Study on Test Score
| Time (min) |
test scores.
C. Effect of Study on Test Score
| Time (min) |
test scores.
D. Effect of Study on Test Score
| Time (min) |
test scores.
Mathematics
Use duality to solve the problem.Minimizew = y1 + 4y2 + 3y3subject to:3y1 + 2y2 + y3 ? 70 2y1 + 2y3 ? 50 y1 ? 0, y2 ? 0, y3 ? 0
A. 90 B. 20 C. 25 D. 165
Mathematics
Solve the inequality.(x + 6)(x + 2) > 0
A. (-6, -2) B. (-?, -6) C. (-2, ?) D. (-?, -6) or (-2, ?)
Mathematics