It makes sense that the larger the area of a region, the larger the number of species that inhabit the region. Many ecologists have modeled the species-area relation with a power function and, in particular, the number of species S of bats living in caves in central Mexico has been related to the surface area A measured in of the caves by the equation
(a) The cave called mission impossible near puebla, mexico, has suface area of A=90m2.
How many species of bats would expect to find in that cave?
(b) If you discover that 5 species of bats live in cave estimate the area of the cave.
a) species
b) 
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Determine whether the following is a difference of squares.-100x2 + 100y2
A. No B. Yes
Solve the inequality. Express your answer using interval notation. Graph the solution set.-2(4x + 4) < -10x - 14
A. (-?, -3]
B. (-3, ?)
C. (-?, 11]
D. (-?, -3)
Fill in the blank with one of the words or phrases listed below.
Two numbers whose product is 1 are called 
.
A. reciprocals B. grouping symbols C. inequality symbols D. opposites
Identify any extrema of the function 
by recognizing its given form or its form after completing the square.
?
A. relative maximum: 
B. relative minimum: 
C. relative minimum: 
D. relative maximum: 
E. relative maximum: 