Use the indicated property to write an algebraic expression equivalent to the given expression.
t; associative
A. 
t
B. 
t
C. t
D. 
t
Answer: C
Mathematics
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Solve the problem.A sequence of rational numbers {rn} is defined by r1 = 
, and if 
then 
Find r50.
A. 3 B. 49 C. 50 D. 2
Mathematics
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
Mathematics
Solve the problem.One rope pulls a barge directly east with a force of 67 newtons, and another rope pulls the barge directly north with a force of 69 newtons. Find the magnitude of the resultant force acting on the barge.
A. 2 newtons B. 96 newtons C. 4623 newtons D. 136 newtons
Mathematics
Use < or > for ? to write a true sentence. Draw a number line if necessary.41 ? 45
A. < B. >
Mathematics