Solve by any method: graphing, substitution, or elimination.

A.
B. no solution
C.
D.


Answer: D

Mathematics

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Simplify. + 

A.  
B.
C.  
D.  

Mathematics

Find the focus and directrix of the parabola.x = 8y2

A. F: ; D: x = 
B. F: ; D: x = - 
C. F: ; D: x = - 
D. F: ; D: y = - 

Mathematics

Provide an appropriate response.Suppose that A is an m × n matrix and B is a p × q matrix. Under what condition(s) can the product AB be found? Under what condition(s) can the product BA be found?

A. AB can be found if m = p; BA can be found if n = q. B. AB can be found if m = q and n = q; BA can be found under the same conditions. C. AB can be found if q = m; BA can be found if n = p. D. AB can be found if n = p; BA can be found if q = m.

Mathematics

Find an equation for the ellipse described.Foci at (0, ±4); y-intercepts are ±7

A.  +  = 1
B.  +   = 1
C.  +  = 1
D.   +   = 1

Mathematics