Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.20x
A. Monomial, variable x; coefficient 1; degree 20
B. Monomial,; variable x; coefficient 20; degree 0
C. Monomial; variable x; coefficient 20; degree 1
D. Not a monomial
Answer: C
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Which of the following is not equivalent to the following expression: 7x - 7? ?
A. seven less than seven times a number. B. seven times a number decreased by 7. C. ?7(x - 7) D. seven subtracted from seven times a number. E. ?none of the above.
Provide an appropriate response.Write 7-2 as an ordinary number.
A. 49
B. -14
C. 
D. 
Determine whether the given equation is an identity.
= 4
A. Yes B. No
The total annual revenue R of the Miramar Resorts Hotel is related to the amount of money x the hotel spends on advertising its services by the function
?
where both R and x are measured in thousands of dollars.
?
Use this function to:
?
a) Find the interval where the graph of R is concave upward and the interval where the graph of R is concave downward.
b) Find the inflection point of R.
c) Determine if it would it be more beneficial for the hotel to increase its advertising budget slightly when the budget is $240,000 or when it is $260,000.
?
A. concave downward on 
;
concave upward on 
;
inflection point is 
B. concave upward on
;concave downward on 
;
inflection point is 
C. concave upward on
;concave downward on 
;
inflection point is 
D. concave downward on
;concave upward on 
;
inflection point is 
E. concave upward on
;concave downward on 
;
inflection point is 