Factor, if possible.x2 - 6x - 55
A. (x + 5)(x - 11)
B. (x - 5)(x + 1)
C. (x - 5)(x + 11)
D. Prime polynomial
Answer: A
Mathematics
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Determine ? in decimal degrees, 0° ? ? ? 90°. Round results to an appropriate number of significant digits.cot ? = 1.8
A. 29.0° B. 27.0° C. 29° D. 27°
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Solve the problem.For what value of r does the infinite series 1 + 5r + 3r2 + 5r3 + r4 + 5r5 + 3r6 + 5r7 + r8 + ... converge?
A. |r| < 4
B. |r| < 1
C. |r| < 
D. |r| < 
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Find the domain of the function.f(x) = 
A. (-?, 18) ? (18, ?)
B. (-?, ?)
C. (-?, 18]
D. (
, ?)
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