Three minus the difference of a number and one equals one half of the difference of three times the same number and four

d. is the correct answer

step-by-step explanation:

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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°