When multiplying fractions, you multiply the denominators together and the numerators together.
3/8 x 4/9
(4•3)/(8•9)
12/72 = 1/6
1/6 is the final answer.
Answer is y = 3sin2(x - pi/4).
Im not sure but it think its 410 mile long, idk double check by changing it into eighths
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You don't use it usually because teachers usually say use 3.14 as an approximation
