The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = sin-1(9t)i + ln(2t2 + 1)j + 
k
A. 
B. 
C. 
D. 0
Answer: C
Mathematics
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Solve the inequality. Give the solution set in both interval and graph forms.
< - 
A. 
 |
B.
-  |
C.
 |
D.
-  |
Mathematics
Provide an appropriate response.34 mg + 55 cg = ? cg
A. 58.4 B. 8.9 C. 584 D. 89 E. none of the above
Mathematics
Perform the operation, if possible.
+ 
A. 
B. 
C. 
D. Not defined
Mathematics
Solve the equation.log3 (x2 - 2x) = 1
A. {3, -1} B. {-3, 1} C. {1} D. {3}
Mathematics