The least squares regression line for the points shown in the graph is 
. Calculate S, the sum of the squared errors.
?
?
?
A. 
?
B.
?
C. ?
?
D. ?
?
E. ?
?
Answer: A
Mathematics
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 0.4375 B. 1 C. 0.5625 D. 3
Mathematics
Solve the problem.A furniture manufacturer uses two types of fabric for a certain type of sofa. It is estimated that between 30 and 40 rolls of fabric A will be needed, but no more than 20 rolls of fabric B. Graph the possible number of rolls of fabric that are needed. 
A. 
B. 
C. 
D. 
Mathematics
Graph the inequality.-3 ? x < 1
A. 
B. 
C. 
D. 
Mathematics
Use the rational zeros theorem to determine the potential rational zeros of the polynomial function. Do not find the zeros.f(x) = 6x4 + 4x3 - 3x2 + 2
A. ± 
, ± 
, ± 
, ± 1, ± 2
B. ± 
, ± 
, ± 
, ± 
, ± 1, ± 2, ± 3
C. ± 
, ± 
, ± 
, ± 
, ± 1, ± 2
D. ± 
, ± 
, ± 1, ± 2, ± 3, ± 6
Mathematics