The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 
for r(t) = (9t - 5t3)i + 4tan(2t)j + e4tk
A. a
= - 
?i + 64j + 16e1/2?k
B. a
= 
?i + 64j + 16e1/2?k
C. a
= - 
?i - 64j + 16e1/2?k
D. a
= - 
?i - 64j + 16k
Answer: A
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Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.
A. Monomial; variable x; coefficient 11; degree 1 B. Monomial; variable x; coefficient 11; degree 0 C. Monomial; variable x; coefficient 11; degree -1 D. Not a monomial
Determine whether the system of equations is consistent or inconsistent. If the system is consistent, determine whether the equations are dependent or independent.
A. Independent B. Dependent C. Inconsistent
Answer the question or provide an example or explanation.Use the example to explain in your own words how to find the product of two monomials with numerical coefficients. 6n5p3z6 ? 2n4pz3
What will be an ideal response?
If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.8xy + 20by + 6x + 15b
A. (4y - 3)(2x + 5b) B. (4y - 3)(2x - 5b) C. (4y + 3)(2x + 5b) D. (4y + 3)(2x - 5b)