Use the figure to answer the question.This double-bar graph shows the number of male (M) and female (F) athletes at a university over a 
period.
2009201020112012YearWhat is the only year in which the number of female athletes declined from its previous value?
A. 2011
B. 2009
C. 2010
D. 2012
Answer: D
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Write in scientific notation.0.000000093006
A. 9.3006 × 10-9 B. 9.3006 × 10-8 C. 9.3006 × 108 D. 9.3006 × 10-7
Provide an appropriate response.How can you tell just by looking at a rational expression if it is equal to -1?
What will be an ideal response?
Solve.A railroad tunnel is shaped like a semi-ellipse. The height of the tunnel at the center is 16 ft and the vertical clearance must be 12 ft at a point 14 ft from the center. Find an equation for the ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.The resistance of a wire varies directly as the length of the wire and inversely as the square of the diameter of the wire. A 20 foot length of wire with a diameter of 
has a resistance of 
What would the resistance be for a 
length, with diameter 
of the same kind of wire ?
A. 653 ohms B. 657.5 ohms C. 672 ohms D. 660 ohms