trig

2x+5y+3=0 what is the value of sin theta

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  1. I assume theta is the slope of the line?
    The slope is -2/5, so tan(theta) = -2/5.

    theta = -21.8 degrees

    sin theta = -0.37

    Or, sin theta = -2/sqrt(29), using the right triangle with legs -2,5

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