Dan has started to cover a rectangular floor with tiles. the tiles are twice as long as they are wide. the fllor is 10 1/2 tiles wide and 18 1/2 tiles long. using this pattern, what is the total number of tiles dan will use to cover the floor?

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

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°

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°