Suppose the sales of a particular brand of appliance are modeled by the linear
function s(x) = 200x + 3700, where s(x) represents the number of sales in year x, with x = 0
corresponding to 2002. use this model to predict the number of sales in 2020.

7300 sales in the year 2020

Step-by-step explanation:

Notice that if the year 2002 represents the year zero, then the years 2020 is:

2020-2002=18 (year number 18).

Now we can simply use the given expression for year "x"  to evaluate what the sales would be in the 18th year:

Therefore the number of sales would be 7300 in the year 2020 according to this model.

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.