The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 
for r(t) = (7 sin 2t)i - (2 cos 2t)j + (7 csc 2t)k
A. a
= -28i - 28k
B. a
= 28i + 28k
C. a
= 8j + 28k
D. a
= -28i + 28k
Answer: D
Mathematics
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Solve the problem.Find C(x) if C'(x) = 
and C(9) = 40.
A. C(x) = 2x3/2 + 22
B. C(x) = 
x3/2 + 31
C. C(x) = 
x3/2 + 22
D. C(x) = 2x3/2 + 31
Mathematics
Fill in the blank with one of the words or phrases listed below.
A polynomial with exactly 3 terms is called a 
.
A. monomial B. trinomial C. binomial D. FOIL
Mathematics
Write the augmented matrix associated with the system.
A. 
B. 
C. 
D. 
Mathematics
Evaluate (9-7)!
a. 20,922,789,888,000 b. 6 c. 1 d. 24 e. 2
Mathematics