HELP ANSWER QUICKLY! the one selected is wrong.

±2 sqrt(2) / 3

Step-by-step explanation:

cos theta = adj / hyp

cos theta = 1/3

Using the Pythagorean theorem

a^2 + b^2 = c^2

opp ^2 + adj ^2 = hyp ^2

opp ^2 + 1 ^2 = 3^2

opp ^2 +1 = 9

opp ^2 = 9-1

opp ^2 = 8

Taking the square root of each side

opp = ± sqrt(8)

opp = ±2 sqrt(2)

sin theta = opp / hyp

               = ±2 sqrt(2) / 3

step-by-step explanation:

answers available in this download

(pearson%2c%25202012)%2520bbs.pdf& usg=aovvaw1obmtxnfghfgxhx0urh_je

he has now walked a total of what?

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step-by-step explanation: