Solve the problem.A firm estimates that it will sell N units of a product after spending x dollars on advertising, where N(x) = -x2 + 150x + 11, 0 ? x ? 150, and x is in thousands of dollars. Find the relative extrema of the function.
A. relative maximum at (75, 5636)
B. relative maximum at (75, 16,886)
C. relative minimum at (75, 16,886)
D. relative minimum at (75, 5636)
Answer: A
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Find the center-radius form of the circle described or graphed.a circle having a diameter with endpoints (4, -6) and (-6, -5)
A. 
2 + 
2 = 101
B. 
2 + 
2 = 125
C. 
2 + 
2 = 
D. 
2 + 
2 = 5
Provide an appropriate response.Which of the following are not allowable transformations when the Gaussian elimination method is used to solve a system of linear equations?(i)A multiple of elements of one row may be added to the corresponding elements of any other row.(ii)Any two columns may be interchanged.(iii)The elements of any row may be multiplied by the corresponding elements of another row.(iv)All of the elements of any row may be multiplied by any nonzero number.
A. (i), (iv) B. (ii), (iii), (iv) C. (ii) D. (ii), (iii)
Match the given equation with one of the graphs.36x2 + 49y2 = 1764
A. 
B. 
C. 
D. 
Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer.log x + log (x +1) = log 56
A. 
B. {8, -7}
C. {8}
D. {7}