Estimate the sum or difference by first rounding to the nearest ten.693
A. 640
B. 600
C. 650
D. 647
Answer: A
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Provide an appropriate response.Given 
f(x) = Ll , 
f(x) = Lr , and Ll ? Lr, which of the following statements is true?I. 
f(x) = LlII. 
f(x) = LrIII. 
f(x) does not exist.
A. I B. III C. II D. None
Find an equation of the line that has the given slope and contains the given point. If possible, write your equation in slope-intercept form.m = -4; (6, 3)
A. x = -4y + 27 B. x = -4y - 27 C. y = -4x - 27 D. y = -4x + 27
Find the equation of the line passing through the indicated two points in standard form.(0, -2) and (3, 6)
A. -8x - 3y = 6 B. -2x + 3y = -24 C. 8x - 3y = 6 D. 2x - 3y = -24
Factor the polynomial as the difference of two squares or state that it is irreducible.16x4 - 81
A. (4x2 + 9)(4x2 + 9) B. (2x + 3)2(2x - 3)2 C. (4x2 + 9)(4x2 - 9) D. (4x2 + 9)(2x + 3)(2x - 3)