What is 0.4^-2 (0.4 to the power of -2)?

39.0625

Step-by-step explanation: (0.4^(-2))*(0.4^(-2))

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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°