Describe the strength and direction of the linear correlation.
A. Weak positive linear correlation
B. Strong negative linear correlation
C. Little or no linear correlation
D. Strong positive linear correlation
Answer: C
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Solve the problem.The population P of a predator mammal depends upon the number x of a smaller animal that is its primary food source. The population s of the smaller animal depends upon the amount a of a certain plant that is its primary food source. If 
and 
what is the relationship between the predator mammal and the plant food source?
A. P(s(a)) = 9a2 + 12a + 9 B. P(s(a)) = 36a2 + 24a + 21 C. P(s(a)) = 12a + 7 D. P(s(a)) = 36a2 + 48a + 21
Solve the problem.The volume of a rectangular box is 
If the width of the box is 
and its length is 
find the height of the box.
A. x + 33 B. x - 3 C. x - 6 D. x + 6
Find the missing factor.20x2 - 7xy - 6y2 = (5x + 2y)( )
A. 4x + 3y B. 3x - 4y C. 4x - 3y D. x - 6xy
Find the vertex of the parabola.(y - 3)2 = 8(x + 1)
A. (1, -3) B. (-1, 3) C. (-3, 1) D. (3, -1)