Asurvey of ghasi’s customers showed that 1,200 of the customers buying yarn would buy bamboo yarn. in the first month, 725 customers actually bought bamboo yarn. what was the percent error in the survey estimate of the number of people buying bamboo yarn? round to the nearest tenth. 39.6% 60.4% 65.5% 71.6%

We are given

A survey of Ghasi’s customers showed that 1,200 of the customers buying yarn would buy bamboo yarn

total predicted bamboo =1200

Actually bought bamboo =725

Error = total predicted bamboo - actually bought bamboo

Error=1200-725

Error=425

now, we can find percentage error

percentage error is

%..........Answer

it would take 7/10 of an hour too fill the pool.

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