Nine times the sum of a number and 2 is 189. i need to make it to an equation.

Equation:

9(a+2)=189

Solve the equation:

9a+18=189

9a=189-18

9a=171

a=171/9

a=19

Check the solution:

Let a=19

9(a+2)=189

9(19+2)=189

171+18=189

189=189

Therefore, the equation is 9(a+2)=189 and a is 19.

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°