Solve the compound inequality. Express the solution using interval notation. Graph the solution set.4x < 20 and x + 4 > 6
A. (-?, 2) ? (5, ?)
B. (2, 5)
C. [2, 5]
D. ?
Answer: B
Mathematics
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Provide an appropriate response.Divide and simplify: 
What will be an ideal response?
Mathematics
Factor the perfect square.9x2 - 48x + 64
A. (3x + 8)2 B. (3x - 9)2 C. (3x - 8)2 D. (3x + 8)(3x - 8)
Mathematics
The polynomial is given in one of the three forms: standard, root, or factored. Change it to the specified form. f(x) = -4x2 + 4x + 80; write in root form
A. f(x) = 4(x - 5)(x + 4)
B. f(x) = -4(x - 5)(x + 4)
C. f(x) = - 
(x - 5)(x + 4)
D. f(x) = -4(x + 5)(x - 4)
Mathematics
Express the sum or difference as a product of sines and/or cosines.cos 
+ cos 
A. 2 cos(4?)
B. 2 cos(4?) cos 
C. 2 sin(4?) sin ?
D. 2 sin(4?) sin 
Mathematics