The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = 1 + 5 cos tFind the body's velocity at time t = ?/3 sec.
A. - 
m/sec
B. 
m/sec
C. 
m/sec
D. - 
m/sec
Answer: A
Mathematics
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Evaluate the improper integral or state that it is divergent.
A. Divergent B. 18 C. 0 D. 36
Mathematics
Multiply by moving the decimal point the appropriate number of places to the right.0.6127 × 1000
A. 612.7 B. 1000.6127 C. 0.6127000 D. 61.27
Mathematics
The table below shows the scores of a group of students on a 10 point multiple choice placement test.
The third quartile on the test is
A. 7. B. 8. C. 6.5. D. 7.5. E. none of these
Mathematics
Find the length of the third side of the right triangle. Where appropriate, give both an exact answer and an approximation to three decimal places.
A. 245
B. 
? 2.646
C. 
? 25.239
D. 
? 15.652
Mathematics