Find the sum given below.
?
?
A. 134
B. 138
C. 126
D. 147
E. 130
Answer: D
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The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = 8 + 3 cos tFind the body's speed at time t = ?/3 sec.
A. - 
m/sec
B. - 
m/sec
C. 
m/sec
D. 
m/sec
The graphs show the position s, velocity v = ds/dt, and acceleration a = d2s/dt2 of a body moving along a coordinate line as functions of time t. Which graph is which?
A. B = position, A = velocity, C = acceleration B. C = position, A = velocity, B = acceleration C. A = position, C = velocity, B = acceleration D. A = position, B = velocity, C = acceleration
Perform the indicated operations and simplify the result so there are no quotients.tan ?(cot ? - cos ?)
A. 0 B. 1 C. 1 - sin ? D. - sec2?
Solve the problem.If two cards are drawn from a 52-card deck without replacement, in how many different ways is it possible to obtain a heart on the first draw and an ace on the second?
A. 48 B. 3 C. 50 D. 51