If (a, b, c) is a Pythagorean triple, then so is:
(a) (3a, 4b, 5c).
(b) (3a, 3b, 3c).
(c) (6a, 6b, 6c).
(d) Both (a) and (b) are correct.
(e) Both (b) and (c) are correct.
(e) Both (b) and (c) are correct.
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Provide an appropriate response.Which of the following statements defines 
f(x) = ??I. For every positive real number B there exists a corresponding ? > 0 such that f(x) > B whenever x0 - ? < x < x0 + ?.II. For every positive real number B there exists a corresponding ? > 0 such that f(x) > B whenever x0 < x < x0 + ?.III. For every positive real number B there exists a corresponding ? > 0 such that f(x) > B whenever x0 - ? < x < x0.
A. I B. II C. III D. None
Evaluate the expression for the given values.
(a) m = 9(b) m = -3(c) m = -9
A. (a) 
(b) undefined
(c) - 
B. (a) 
(b) undefined
(c) - 
C. (a) 
(b) 0
(c) 
D. (a) 
(b) undefined
(c) 
If y varies directly as x, write a general formula to describe the variation.y = 0.7 when x = 2.8
A. y = 0.7x B. y = 4x C. y = x - 2.1 D. y = 0.25x
Graph the ellipse.4x2 + 49y2 = 196
A. 
B. 