Find the degree of the following polynomial and determine whether it is a monomial, binomial, trinomial, or none of these.-5x3 - 8w2 - 7w - 5y4 + 5
A. 11; binomial
B. 10; trinomial
C. 4; trinomial
D. 4; none of these
Answer: D
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Perform the indicated operation. 
÷ 
A. 
B. 
C. 
D. 
Write the decimal in word form.0.089
A. eighty-nine hundredths B. eighty-nine ten-thousandths C. eighty-nine hundred-thousandths D. eighty-nine thousandths
A person's weight depends both on the daily rate of energy intake, say C calories per day, and the daily rate of energy consumption, typically between 12 and 20 calories per pound per day. Using an average value of 16 calories per pound per day, a person weighing w pounds uses 16w calories per day. If 
, then weight remains constant, and weight gain or loss occurs according to whether C is greater or less than 16w.To determine how fast a change in weight will occur, a plausible assumption is that dw/dt is proportional to the net excess (or deficit) 
in the number
of calories per day.Assuming C is constant, a differential equation to express this relationship is 
where k is the constant of proportionality. The units of dw/dt are pounds per day, and the units of C - 16w are calories per day. What units must k have?
A. pounds/day
B. pounds/calorie
C. calorie/pounds
D. pounds calories/day2
Find all relative extrema for the function, and then match the equation to its graph.
z = -y4 + 4xy - 2x2 + 
A. Relative minima of - 
at (0, 1) and
at (0, -1); saddle point at (0, 0)
B. Saddle points at (0, 0), (-1, 1), (1, -1), (1, 1),
and (-1, -1)
C. Relative maxima of 
at (1, -1)
and at (1, 1);
D. Relative maxima of 
at (1, 1)
and at (-1, -1); saddle point at (0, 0)