Use the factoring method to identify the LCD for the pair of fractions.
, 
, 
A. 108
B. 270
C. 180
D. 540
Answer: D
Mathematics
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Evaluate the integral.
A. 
cos 81
B. 
(1 - cos 81)
C. 
(1 - cos 81)
D. 
cos 81
Mathematics
The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 
for r(t) = (7t - 4t3)i + 2tan(3t)j + e5tk
A. a
= - 2?i + 72j + 25e5/12?k
B. a
= - 2?i - 72j + 25e5/12?k
C. a
= - 2?i - 72j + 25k
D. a
= 2?i + 72j + 25e5/12?k
Mathematics
Use the square root property to solve the equation.3x2 = 21
A. 8
B. ±7
C. ±
D. 10.5
Mathematics
The graph of a function f is given. Determine whether f is continuous on its domain.
?
?
?
A. Continuous B. Discontinuous
Mathematics