Figure abcd is a parallelogram.
5x + 3
38
what is the value of x?
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15 point ! ~ see if you know the answer to both you!

Which value is not a solution of 8x^3 – 1 = 0

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?