The people who responded to a survey reported that they had either brown, green, blue, or hazel eyes. The results of the survey are shown in the table. A 2-column table has 4 rows. The first column is labeled Eye Color with entries brown, green, blue, hazel. The second column is labeled Number of People with entries 20, 6, 17, 7. What is the probability that a person chosen at random from this group has brown or green eyes? StartFraction 3 Over 25 EndFraction StartFraction 7 Over 25 EndFraction StartFraction 13 Over 25 EndFraction StartFraction 17 Over 25 EndFraction

Step-by-step explanation:

Given

Required

Determine the probability of Brown or Green eyes

First, the total number of respondents have to be calculated;

The events described above is a mutually exclusive event and as such, the required probability will be calculated by;

Calculating P(Brown)

Substitute 20 for n(Brown) and 50 for Total

Calculating P(Green)

Substitute 6 for n(Green) and 50 for Total

So;

Take LCM

Divide the numerator and denominator by 2

0.6

39mph

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