Match the numerical model to the corresponding model.
A. y = 6x-4
B. y = 5x-1
C. y = 3x+5
D. y = 7x-7
Answer: A
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = cos (5t)i + 2ln(t - 9)j - 
k
A. v(0) = -
j
B. v(0) = 
j
C. v(0) = -5i - 
j
D. v(0) = 5i - 
j
Solve each problem.The population growth of an animal species is described by 
where t is measured in months. Find the population of this species in an area 6 months after the species is introduced.
A. 240 B. 704 C. 470 D. 74
Identify the polynomial as a monomial, binomial, trinomial, or none of these.6x4 + 4w3 - 3w - 2y5 - 2
A. Trinomial B. Binomial C. Monomial D. None of these
Solve the problem.A manufacturer bought a milling machine for $265,000. It has a scrap value of $73,000. The useful life can range from 5 to 10 years. The manufacturer wants to show no more than $32,501 per year in depreciation. How many years (integer) should be used for its life?
A. 4 years B. 5 years C. 7 years D. 6 years