2nd Question. Will mark brainiest
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Mathematics, 21.06.2019 16:50
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 17:50
Adriana sold 50 shares of a company’s stock through a broker. the price per share on that day was $22.98. the broker charged her a 0.75% commission. what was adriana’s real return after deducting the broker’s commission? a. $8.62 b. $229.80 c. $1,140.38 d. $1,149.00
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Mathematics, 21.06.2019 21:30
In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.
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Mathematics, 21.06.2019 22:00
If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re
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