Find the limit algebraically.
(x3 + 5x2 - 7x + 1)
A. 15
B. 0
C. 29
D. does not exist
Answer: A
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 
for r(t) = 4 sec2(t)i - 6tan(t)j + 1t2k
A. v
= 16i + 12j - 
?k
B. v
= -12j + 
?k
C. v
= -12j - 
?k
D. v
= 16i - 12j + 
?k
Mathematics
Express as a difference of logarithms.loga 
A. loga D - loga P B. loga D ÷ loga P C. loga P - loga D D. loga (D - P)
Mathematics
Complete the square to find the x-intercepts of the function.f(x) = x2 + 4x - 3
A. (2 + 
, 0)
B. (-2 + 
, 0), (-2 - 
, 0)
C. (-2 + 2
, 0), (-2 - 2
, 0)
D. (-1 + 
, 0), (-1 - 
, 0)
Mathematics
Simplify the square root.
A. 8.062
B. -65
C. 65
D. 
Mathematics