Solve the problem.A rocket follows a path given by 
where distances are in miles. If the horizontal velocity is given by 
find the direction of the velocity when the rocket hits the ground (assume level terrain) if time is in minutes.
A. 318.8°
B. 266.2°
C. 311.2°
D. 273.8°
Answer: C
Mathematics
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Sketch the curve of the vector function r(t)=3ti +(2t+ 3)j, -1?t?2, and indicate the orientation of the curve.
What will be an ideal response?
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Evaluate the expression for x = -2, y = 3, and a = -4.
A. 
B. 
C. 0
D. 2
Mathematics
Find the mean of the list of data.75, 85, 61, 81, 58
A. 75 B. 60 C. 72 D. 85
Mathematics
Solve the system of linear equations by the method of elimination. Find (x,y) and check your solution algebraically.
?
?
A. (4, 1) B. (4, -4)? C. (-4, -1)? D. (4, -1)? E. (-4, 1)?
Mathematics