Select the correct answer
which sequence is geometric and has 1/4' as its fifth term and 1/2 as the common maior
1 1/
21 /4, 1/
14,1 12, 3, 2, ..
1/72', '1/36, 1/18, 1/9
8. 4. 2,

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

What are the solutions of the equation? 16x^2 + 24x + 5 = 5 a. 1/4, 5/4 b. -1/4, -5/4 c. -1/4, 5/4 d. 1/4 , -5/4

Solve the equation by completing the square. x^2+2x=17