The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = -9 + 9 cos tFind the body's velocity at time t = ?/3 sec.
A. 
m/sec
B. - 
m/sec
C. 
m/sec
D. - 
m/sec
Answer: B
Mathematics
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Multiply or divide measurement numbers, rounding to the correct precision.
A. 0.044375 
B. 0.04438 
C. 0.0444 
D. 0.044 
Mathematics
Translate the English statement into an inequality.The number of people the school can hold is at most 123. (Use the variable p for number of people.)
A. p > 123 B. p < 123 C. p ? 123 D. p ? 123
Mathematics
The point P on the unit circle that corresponds to a real number t is given. Find the indicated trigonometric function.
?Find sec t.
A. 
B. 
C. 
D. 
Mathematics
Find the inverse of the matrix (if it exists).
a. 
b. 
c. 
d. Does not exist
Mathematics