Rút gọn biểu thức
a (x+y)^2+(x-y)^2
B 2(x-y)(x+y)+(x-y)^2+(x+y)^2...
Mathematics, 24.07.2021 03:10 vanessasantos2004vs
Rút gọn biểu thức
a (x+y)^2+(x-y)^2
B 2(x-y)(x+y)+(x-y)^2+(x+y)^2
Answers: 3
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What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15
Answers: 1
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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
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