Factor by grouping.x3 + 4x2 + x + 4
A. (4x2 + 4)(x + 1)
B. (x2 + 1)(4x + 4)
C. (x2 + 1)(x + 4)
D. (x2 + 4)(x + 1)
Answer: C
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Write the number in scientific notation.154,000
A. 1.54 × 105 B. 1.54 × 10-1 C. 1.15400 × 103 D. 4.620 × 105
Solve the problem, using 3.14 for ?. Round to nearest tenth unless instructed differently.Find the cost to asphalt a circular racetrack if asphalt costs $90 per 100 ft2. (Use 3.14 for ?. Round to the nearest dollar.) r = 85 ft R = 140 ft
A. $34,195 B. $55,390 C. $34,972 D. $20,418
Estimate the percentage. ? 10% of 96.7 ?
A. 50 B. 100 C. 2 D. 10 E. 5
Solve the problem.The rate of growth of a microbe population is given by 
where x is time in days. What is the net growth between day 3 and day 7?
A. 117,238,789 B. 222,613,544 C. 111,306,789 D. 222,613,533