In calm waters the oil spilling from the ruptured hull of a grounded tanker forms an oil slick that is circular in shape. If the radius 
of the circle is increasing at the rate of
?
feet/minute 
minutes after the rupture occurs.
?
Find an expression for the radius at any time 
. Hint: 
.
?
How large is the polluted area 8 minutes after the rupture occurred?
?
A. 
; 
ft2
B. 
; 
ft2
C. 
; 
ft2
D. 
; 
ft2
Answer: A
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Perform long division.
A. x2 - 2x - 5 B. 4x2 + 2x + 5 C. 4x2 + 5 D. x2 + 2x + 5
According to estimates by Paul Kroger Associates, the percent of households that own VCRs is given by 
, where t is measured in years, with t = 0 corresponding to the beginning of 1985.
?
What percent of households owned VCRs at the beginning of 1985? Round your answer to the nearest tenth.
?
__________%
?
At the beginning of 1992? Round your answer to the nearest tenth.
?
__________%
What will be an ideal response?
Provide an appropriate response.The largest possible number that will divide equally into 2 or more other numbers is called the:
A. numerator. B. least common denominator. C. greatest common divisor. D. denominator.
Graph the given functions on the same rectangular coordinate system. Describe how the graph of g is related to the graph of f.f(x) = 
, g(x) = 
A. g shifts the graph of f vertically down 1 unit
B. g shifts the graph of f vertically up 1 unit
C. g shifts the graph of f 1 unit to the left
D. g shifts the graph of f 1 unit to the right