Argelia

Bob heads out into a lake at an angle of 34 with respect to the shore. If his boat is capable of a speed of 2.5 m/s, how far from land will he be in 7 min and 31 s ? Answer in units of m

consider y=-2+5cos(20x-5pie) the period is? the frequency is? the vertical shift is? the horizontal shift is?

solve for all values in [0,2pie) 2sin^2x-1=0

solve for all values in [0,2pie) 2cos^2x-5sinx+1=0