Sketch the graph of the function.y = 
- 2 cos 2x
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use a calculator to evaluate the expression, or state that the value does not exist. Round the answer to four decimal places when necessary.csch x 
A. -1.571 B. 0.0371 C. -0.9103 D. -2.9085
Mathematics
Solve.A ball is thrown upward with an initial velocity of 14 meters per second from a cliff that is 
high. The height of the ball is given by the quadratic equation 
where h is in meters and t is the time in seconds since the ball was thrown. Find the time it takes the ball to hit the ground. Round your answer to the nearest tenth of a second.
A. 4.7 sec B. 5.1 sec C. 4.9 sec D. 6.9 sec
Mathematics
Find the determinant of the matrix.
?
?
A. 15
B. 13
C. 
D. 
E. 
Mathematics
Find an equation of the parabola whose graph is shown.
 figure 1.png)
Mathematics