For what values of x does x^2 +10x + 2 = 0?
A) -10 ± 2 √23
B) 5 ± √23
C) 5 ± 2 √6
D) -5 ± 2 √6
E) -5 ± √23
At what value(s) is √x + 3 undefined?
A) (-∞, -3)
B) (-∞, -3]
C) (-∞, 3)
D) (-∞, 3]
E) [-3, ∞)
Which expression best represents the perimeter of this rectangle?
[Recall that perimeter equals the total length of the sides.]
A) L 2^W^2
B) 2LW
C) 4LW
D) 2(LW)
E) 2L + 2W