Multiply using the rules for special products.(4x + 7)(4x - 7)
A. 16x2 + 56x - 49
B. 16x2 - 49
C. 16x2 - 56x - 49
D. 4x2 - 56x - 49
Answer: B
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Find the base 10 logarithm of the given number.An ultrafast laser pulse has a duration of 2.6 × 1016 seconds.
A. 16.41 B. 37.80 C. 18.6 D. 39.56
Find the mode or modes.7.14, 7.41, 7.56, 7.14, 7.88, 7.99, 7.62
A. 7.534 B. 7.56 C. 7.14 D. 7.41
Write an inequality statement using the numbers in the problem.At Relax Resort, the Beginner's Trail is 7 kilometers long. The Advanced Trail is 20 kilometers long. Write an inequality statement using ? or ? comparing the numbers 7 and 20.
A. 7 ? 20 B. 7 ? 20
Solve the problem.The population of a town was 27,600 when the first official population was recorded. If the population decreased 350 people per year, how many people lived in the town 15 years later?
A. 5250 B. 22,700 C. 22,350 D. 22,000