For those which are polynomial functions, find the degree, the leading term, and the leading coefficient.f(x) = 3 + 5x - 7x3
A. not a polynomial function
B. Degree: 3, leading term: -7, leading coefficient: 3
C. Degree: 3, leading term: -7x3, leading coefficient: -7
D. Degree: 0, leading term: 3, leading coefficient: 3
Answer: C
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The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = 8 sin t - cos tFind the body's acceleration at time t = ?/4 sec.
A. 
m/sec2
B. - 
m/sec2
C. 
m/sec2
D. - 
m/sec2
Determine whether the argument is valid or invalid. You may compare the argument to a common form, if applicable, or use a truth table.If you eat well, you will be well.If you are well, you will be happy.? If you eat well, you will be happy.
A. Valid B. Invalid
Simplify the rational expression.
A. -4
B. 4
C. - 
D. 
Decide whether or not the ordered pair is a solution to the equation.3x + 5y = 19; (3, 2)
A. Yes B. No