Solve the problem.Find the least squares line through the points 
and 
A. y = -15x - 12
B. y = -3x - 12
C. y = -15x + 12
D. y = -3x + 12
Answer: C
Mathematics
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Provide an appropriate response.A welder analyzed his account records and discovered that his profit could be predicted by the formula P = -x2 + 80x - 1,500, where x represents the number of welds he could do daily. What would be his daily profit?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the x- and y-intercepts. If no x-intercepts exist, state so.y = -x2 + 4x - 16
A. 
, (0, -16)
B. No x-intercepts, (0, -16)
C. 
, (0, 16)
D. No x-intercepts, (0, 16)
Mathematics
Decompose into partial fractions.
A. 
- 
B. 
- 
C. 
- 
D. 
+ 
Mathematics
Simplify the power of i.
?
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics