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Angelina_Jolie [31]
3 years ago
8

3/5+1/2=?+?=?,or? ; please DONT explain the anwser and how to do it i would just like the anwser this is what this site is for

Mathematics
1 answer:
Sladkaya [172]3 years ago
8 0
Hint: Make both the denominators of both fractions equal 10, then multiply both numerators by the number you would need to make the denominator 10.

So, If you make 3/5 into 3/10, then you would need to multiply the 3 by 2, since 5x2=10. You do the same thing to the other fraction, 1/2 to 1/10, then you multiply the 1 by 5, since 2x5=10.

Then you just add 6/10 and 5/10 and there is your answer.
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Hello I'lll solve this problem.

Step-by-step explanation:

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3 0
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Pls answer this along with ur method
Lesechka [4]
Y = 2

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3 0
4 years ago
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aksik [14]
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5 0
3 years ago
Random samples of size 81 are taken from an infinite population whose mean and standard deviation are 200 and 18, respectively.
jeka57 [31]

Answer:

D 200 and 2

Step-by-step explanation:

standard error of the sampling distribution of sample mean is expressed using the formula;

Standard error of the mean = S/√n where;

S is the standard deviation

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Given

S = 18

n = 81

SEM = 18/√81

SEM = 18/9

SEM = 2

The mean of the distribution according to the question is 200.

Hence the mean and the standard error of the sampling distribution of sample mean are 200 and 2 respectively.

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