Find the LCD of the given rational expressions.
; 
A. -(y + 3)(y + 5)
B. (y + 3)(y - 5)
C. (y - 3)(y + 5)
D. -(y - 3)(y + 5)
Answer: D
Mathematics
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Write a matrix equation equivalent to the system of equations.-2x + 4z = 16 9y + 7z = 538x + 6y + 2z = 38
A. 
=
B.
  =  |
C.
=
D.
= 
Mathematics
Solve the problems.Steve drove 6 kilometers and cycled 833 meters. How many meters did he travel in total?
A. 833.006 m B. 8,336 m C. 6833 m D. 83,306 m
Mathematics
Find an equation of the ellipse.An ellipse with center at origin, length of major axis 10 and y-intercepts 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given. Round to the nearest hundredth where necessary.A = 
bh; b = 7, h = 12
A. 84 B. 19 C. 19.5 D. 42
Mathematics