Find the matrices A and B such that AB gives the augmented matrix of the system of equations used to find m and b of the regression line for the points 
and 
.
What will be an ideal response?
Mathematics
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Perform the indicated operation or operations. Write the answer in simplest form. If the problem contains mixednumbers and the answer is an improper fraction, express the answer as a mixed number.
3
A. - 
B. 
C. 
D. - 
Mathematics
Find the intercepts for the ellipse, rounded to four decimal places.
+ 
= 1
A. (±4.3589, 0), (0, ±4.7958) B. (4.7958, 0), (0, 4.3589) C. (±4.7958, 0), (0, ±4.3589) D. (4.3589, 0), (0, 4.7958)
Mathematics
Solve the equation.
= 
A. 
, 0
B. No solution
C. - 
, 0
D. - 
, 
Mathematics
Simplify.8 + 4 ÷ 2 ? 3 - 7
A. 7 B. 11 C. 21 D. 29
Mathematics