Help, Which show the correct way to factor 18 + 9?
Option 1: 9(2+1)
Options 2: 3(6+3)...
Mathematics, 24.03.2021 18:00, sindy35111
Help, Which show the correct way to factor 18 + 9?
Option 1: 9(2+1)
Options 2: 3(6+3)
Answers: 1
Mathematics, 21.06.2019 18:20, nehaljay1883
The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%
Answers: 1
Mathematics, 21.06.2019 18:40, miguel3maroghi
Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.
Answers: 3
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