Factor the polynomial completely. If the polynomial cannot be factored, write "prime."5x3 - 135
A. 5(x - 15)(x2 + 15x + 45)
B. 5(x - 3)(x2 + 3x + 9)
C. 5(x + 3)(x2 - 3x + 9)
D. 5(x - 3)(x2 - 3x + 9)
Answer: B
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Solve the equation for y.4x - 6y = 4
A. y = 4x - 4
B. y = 
x - 
C. y = 
x + 
D. y = 
x + 1
Perform the operation indicated.
? 
A. 
B. 
C. 
D. 
A wildlife biologist has spent the past 5 years studying the relationship between the length (inches) and the average weight (lb) of the striped bass. His results are summarized in the table below. Length(inches) Weight(lb) 14 3 18 6 22 11 26 14 Find the least squares regression line y = ax + b for the data in the table, where x represents the length of the fish in inches and y represents the weight in pounds. Use this regression line to estimate the average weight of a striped bass that is 21 inches in length.
A. y = 0.85(21) - 12.5 = 5.35 lb B. y = 0.95(21) - 10.5 = 9.45 lb C. y = 0.95(21) - 8.5 = 11.45 lb D. y = 0.75(21) - 9.5 = 6.25 lb E. y = 0.65(21) - 10.5 = 3.15 lb
Find the value of the line integral 
.
(Hint: If 
is conservative, the integration may be easier on an alternate path.)
?
?
A. 405
B. 3,072
C. 972
D. 0
E. 12