Solve the inequality. Express your answer using interval notation.3x + 8 < 20
A. (4, ?)
B. [4, ?)
C. (-?, 4]
D. (-?, 4)
Answer: D
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 
< 1.98 × 10-2
B. 
< 1.15 × 10-3
C. 
< 4.48 × 10-3
D. 
< 1.80 × 10-3
Perform the following operations:
2x 4x a. ÄÄ + ÄÄ 5 5 2a 3a 5b b. ÄÄ + ÄÄ - ÄÄ 7 7 7
Find all rational zeros and factor f(x).f(x) = 4x3 - 28x2 - x + 7
A. 2, -2, 7; f(x) = (x - 2)(x + 2)(x - 7)
B. 
, - 
, 7; f(x) = (x - 2)(x + 2)(x - 7)
C. 1, -1, 7; f(x) = (2x - 1)(2x + 1)(x - 7)
D. 
, - 
, 7; f(x) = (2x - 1)(2x + 1)(x - 7)
Provide an appropriate response.If you assume each month has 30 days when calculating interest, time is considered:
A. variable B. approximate C. exact D. ordinary