For the given system of equations, which method would be the most efficient method to use when solving the system of equations: substitution, addition, or either?6x - 5y = 344x + 3y = 28
A. substitution
B. addition
C. either
Answer: B
Mathematics
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For the given rational functions f(x) and g(x), f(x) + g(x).f(x) = 
, g(x) = 
A. 
B. 
C. 4x + 5
D. 
Mathematics
The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 0 for r(t) = t2i + (6t3 - 10)j + 
k
A. a(0) = 2i - 
k
B. a(0) = 2i + 
k
C. a(0) = 2i - 
k
D. a(0) = 2i - 
k
Mathematics
Without actually converting, choose the most reasonable answer.A plant is 19 inches tall, which is about ________ .
A. 500 cm B. 5 cm C. 0.5 m D. 5 m
Mathematics
Find the slope of the line through the pair of points.(-1, -4) and (-1, -8)
A. - 
B. - 
C. Undefined
D. -4
Mathematics