I need help #7 The tide at a boat dock can be modeled by the equation y = -2 cos ( +8, +8, where tis the number of hours past noon and y is the height of the tide, in feet. For how many hours between $ = 0 and I = 12 is the tide at least 7 feet? [The use of the grid is optional) ​

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

Write an equation for the function that includes the points (1,4/5) and (2,2/3)