Factor completely.128x2 - 50
A. 2(8x + 5)(8x - 5)
B. (8x + 5)(16x - 10)
C. (16x + 10)(8x - 5)
D. 2(8x - 5)2
Answer: A
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Multiply. Write the answer in lowest terms.
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? 
A. 
B. 
C. 
D. 
Arrange the group of numbers in order, from least to greatest.5.24, 4.78, 4.87, 5.42
A. 5.42, 5.24, 4.87, 4.78 B. 4.78, 4.87, 5.24, 5.42 C. 4.78, 5.24, 4.87, 5.42 D. 4.87, 4.78, 5.42, 5.24
Find the standard deviation of the probability density function to the nearest hundredth.f(x) = 3x-4; [1, ?]
A. 0.71 B. 0.87 C. 0.85 D. 0.83
Suppose that during a certain part of the day, the number X of automobiles that arrive within any one minute at a tollgate is Poisson distributed, and 
. What is the average number of automobiles that arrive per minute?Enter just an integer.
Fill in the blank(s) with the appropriate word(s).