Which operation gives a result of 1.39? sum of 2.39 and -130 sum of 0.63 and 1.25 sum of -2.96 and 4.35 sum of -5.66 and 1.25

Sum of -2.96 and 4.35

Step-by-step explanation:

Sum of 2.39 and -130,

Sum of 0.63 and 1.25,

Sum of -2.96 and 4.35

Sum of -5.66 and 1.25,

Hence, only the operation ' Sum of -2.96 and 4.35 ' gives the result 1.39.

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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°