Find the relative extrema of the function on [0, 2? ]. List your answers in terms of ordered pairs. Then sketch a graph of the function.
Relative maximum at 
; relative minimum at 
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Find the vertices and foci of the ellipse.9x2 + 25y2 = 225
A. Vertices: (0, ±5); Foci: (0, ±4) B. Vertices: (0, ±9); Foci: (0, ±5) C. Vertices: (±5, 0); Foci: (±4, 0) D. Vertices: (±9, 0); Foci: (±4, 0)
If s represents the displacement and t represents the time for an object moving with rectilinear motion according to the given function, find the instantaneous velocity for the given time.s = 3.1 + 0.2t + 1.5t2; t = 0.7
A. 1.6 B. 2.2 C. 3.2 D. 2.3
Solve the problem.5 + 8 + 11 + . . . + 755 =
A. 
B. 
C. 
D. 
E. none of these
Solve the problem.The final grade for an algebra course is determined by grades on the midterm and final exam. The grades for four students and two possible grading systems are modeled by the following matrices. src="https://sciemce.com/media/4/ppg__ttttt0521191157__f1q73g6.jpg" style="vertical-align: -15.0px;" />Find the final course score for Student 3 for both grading System 1 and System 2.
A. System 1: 57.5; System 2: 102.5
B. System 1: 77.8; System 2: 76
C. System 1: 39.8; System 2: 53
D. System 1: 83; System 2: 80
