Solve.A bridge with a semi-elliptical arch extends over a river as shown. Find an equation of the ellipse that represents the arch of the bridge.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
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Multiply the polynomials.(x - 11)(x2 + 3x - 9)
A. x3 + 14x2 + 42x + 99 B. x3 - 8x2 - 42x + 99 C. x3 - 8x2 - 24x - 99 D. x3 + 14x2 + 24x - 99
Determine whether the argument is valid or invalid.If the pond contains algae, then the pond does not contain trout.If the pond does not contain algae and does not contain trout, then the pond does not contain frogs.The pond contains algae. Therefore, the pond contains frogs.
A. Invalid B. Valid
Perform the indicated operation for the given f(x) and g(x).
, 
Find 
A. 12 B. -20 C. 4 D. 8
The line graph indicates the lowest temperature recorded in a certain city for six consecutive months. 
Which month was the recorded low temperature the lowest?
A. October B. February C. January D. March