aly02
16.07.2021 •
Mathematics
1. Joe bought a new car in 2011 for $35.000. In 2015, Joe was offered a fair price of $15.000 for his car, but he turned it down *) Build a linear algebraic model, (ie, a function), that helps Joe find the car's value when it is 7 years old w Use your model to give an estimate to the current value of Joe's car? When will the value of the car be zero dollars. (According to your model)?
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Ответ:
169.67in²
Step-by-step explanation:
This problem bothers on the mensuration of solid shapes, a cone
The expression for the total surface area of the cone is
A= πrl + πr²
Given data
Diameter d =9in
Radius r = d/2= 9/2= 4.5in
Slant height l = 7.5in
A= πrl + πr²
Substituting our given data we have
A= 3.142*4.5*7.5+ 3.142*4.5²
A= 106.04+63.63
A= 169.67in²
The total surface area is 169.67in²