Provide an appropriate response.If X has density function f(x) = 
find ?.
A. 
B. 
C. 
D. 
E. 
Answer: A
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Solve the problem.Find the length of the curve y = ln(sin x), ?/3 ? x ? ?/2
A. 1 - ln(
)
B. ln(
)
C. ln(2
)
D. ln(
+ 1)
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 1 for r(t) = (4t2 + 3t + 7)i - 6t3j + (7 - t2)k
A. v(1) = 7i - 6j - 1k B. v(1) = 11i + 18j + 2k C. v(1) = 5i - 18j - 2k D. v(1) = 11i - 18j - 2k
Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Incorrect; should be 2281 R5 B. Correct C. Incorrect; should be 2276 R3 D. Incorrect; should be 2276 R4
Decide whether a linear function, a quadratic function, or neither of these types of functions would be reasonable for modeling the data shown in the scatterplot. 
A. quadratic B. linear C. neither of these