Simplify the series of additions and subtractions.14 + (-14) - 13 + 4
A. 9
B. 17
C. -9
D. -17
Answer: C
Mathematics
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Find the Maclaurin series for the given function.cos (-2x)
A. 
B. -
C. -
D. 
Mathematics
Graph the pair of parametric equations in the rectangular coordinate system.x = 9 cosh t , y = 6 sinh t, -? < t < ?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.How long will it take a sample of radioactive substance to decay to half of its original amount, if it decays according to the function A(t) = 450e-0.157t, where t is the time in years? Round your answer to the nearest hundredth year.
A. 38.91 years B. 4.41 years C. 70.65 years D. 43.33 years
Mathematics
Add or subtract as indicated.(x3y2 + 3x2y3 + 4xy - 3) + (x2y3 + 7x3y2 + 5xy + 1)
A. 8x3y2 + 4x2y3 + 4xy - 2 B. 6x3y2 + 4x2y3 + 9xy - 2 C. 8x3y2 + 4x2y3 + 9xy - 2 D. 2x3y2 + 10x2y3 + 9xy - 2
Mathematics