An internet and cable-television supplier surveyed a random sample of their customers. the results are shown in the table. which statement about the two-way frequency table is true? a. the survey represents quantitative data. b.there is a greater percentage of internet customers who are not satisfied than cable television customers who are notsatisfied. c. about half of the customers surveyed are cable-television customers. d. about one-fourth of the cable-television customers are not satisfied.

D) About one-fourth of the cable-television customers are not satisfied.

Step-by-step explanation:

First you find out how many cable-television customers are not satisfied, which is 285. The you find out the total number of cable-television users in the sample, which is 1,109. Then you divide the number of unsatisfied by the total, 285/1109, to get .2569 or 25%

D) About one-fourth of the cable-television customers are not satisfied.

Step-by-step explanation:

d

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204