Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m
B. 21 + m
C. 21 + 7m
D. 21 + 3m
Answer: D
Mathematics
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Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
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B. 
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C. 
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D. 
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Mathematics
Make an approximate conversion as indicated. Round to the nearest tenth. The precise value of your approximation will depend on the conversion path that you choose.36 L = 
pt
A. 86.4 pt B. 68.1 pt C. 76.3 pt D. 32.7 pt
Mathematics
Identify the graph of the equation as a parabola, circle, ellipse, or hyperbola.16x2 + 9y2 = 144
A. Circle B. Parabola C. Hyperbola D. Ellipse
Mathematics
Solve the problem.The profit that the vendor makes per day by selling x pretzels is given by the function 
Find the number of pretzels that must be sold to maximize profit.
A. 170 pretzels B. 0.8 pretzels C. 800 pretzels D. 400 pretzels
Mathematics