NEED HELP WITH THESE ASAP THANKS!

\f(t 6) 15.6 |:] (D o.ata seaport, the depth of the water, h meters, at time t hours, during a certain day is given by h = 2.6 sin 27 + 7.3 What is the maximum depth of the water? () 83m O 47m () 99m O 26m 7. The graph of y = cosa is transformed to y = a cos(x - c) + d by a vertical expansion by a factor of 7, then translated N 4 units left and 8 units up. The new equation is: y = 7 cos(x - )- 8 y = 7 cos I - " ) + 8 y = = cos (x - - + 8 y = 7 cos(x +" ) +85. 0 is an angle in standard position whose terminal arm is in quadrant IV and cos f = 2 Find sin 0. V 20 4 V20 4 V 20 16 V20 V20 4 16 V20|,:] @ s without graphing or solving the inverse equation, which of the following is not a transformation on the inverse of y = 4sin(3(x + 6)) 7? (O Vertical translation of 6 units up () Reflection about the y-axis (O Horizontal stretch by a factor of 4 1 O Vertical stretch by a factor of 3 \f