Mathematics, 11.07.2019 12:30 Alexandram2163

What is the area of figure a and figure b?

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Mathematics, 21.06.2019 16:50, gesic2003

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?

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Mathematics, 21.06.2019 19:40, michaellangley

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?