An arc whose endpoints lie on the diameter of a circle is called a _______________
Fill in the blank(s) with the appropriate word(s).
Semicircle
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = ln(t3 - 5t2 + 5)i - 
j - 2cos(t)k
A. v(0) = - 
j
B. v(0) = 
j
C. v(0) = 
i - 
j
D. v(0) = 
i - 
j + 2k
Answer the question or solve the problem.Four married couples go to the theater together. The husbands' names are Sam, Miguel, Brad, and Pete. The wives' names (in some order) are Emma, Kate, Julie, and Diane. Diane is Sam's sister. Pete is married to Emma. Brad's wife has no brothers. Julie's husband is an only child.Determine who is married to whom.
A. Sam is married to Kate; Miguel is married to Julie; Brad is married to Diane; Pete is married to Emma B. Sam is married to Julie; Miguel is married to Kate; Brad is married to Diane; Pete is married to Emma C. Sam is married to Emma; Miguel is married to Diane; Brad is married to Julie; Pete is married to Kate D. Sam is married to Kate; Miguel is married to Diane; Brad is married to Julie; Pete is married to Emma
Find the square root.- 
A. -11 B. -60 C. not a real number D. 11
Factor out the indicated common factor of the expression. Then completely factor the expression.1 - 13x-1 + 36x-2; x-2
A. x-2(x + 4)(x + 9) B. x-2(x - 4)(x - 9) C. x-2(x - 4)(x + 9) D. x-2(x2 - 13x + 36)