Solve the problem.Find the point of diminishing returns (x, y) for the function 
, 
, where R(x) represents revenue in thousands of dollars and x represents the amount spent on advertising in tens of thousands of dollars.
A. (14 , 24,924)
B. (11 , 21,462)
C. (52.69, -2512.09)
D. (13.2, 24,009.95)
Answer: B
Mathematics
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Solve the equation 
. Restrict your attention to the horizontal span of 0 to 5. Round your answer to two decimal places if necessary.
?
A. 1.41 B. 2.73 C. 0.19 D. 4.46
Mathematics
Write the phrase as a mathematical expression. Use x as the variable.6 times some number
A. 
B. 6 + x
C. 6 - x
D. 6x
Mathematics
Find z1z2. Express the answer in standard form.z1 = 4(cos 60° + i sin 60°)z2 = 6(cos 330° + i sin 330°)
A. -12 + 12i
B. 24i
C. 24
D. 12
+ 12i
Mathematics
Perform the indicated operation(s). Simplify if possible.
- 
A. - 
B. 
C. - 
D. 
Mathematics