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3 years ago

15

3+6•(5+4) ÷3-7 guys please help

2 answers:

Blababa [14]3 years ago

6 0

Answer: 11

Step-by-step explanation:

3+5.(5+4)÷3-7

3+5×8÷3-7

3+15-7

11

Bye

MrRa [10]3 years ago

3 0

First you have to do the one in the bracket so that would be 9. Now its 3+6x9 divide by 3-7 then do the multiplication and you will get 54. Now its 3+54 divided by 3-7. Now do the division and you’ll get 18. Now its 3+18-7 then add 3+18 which is 21 then subtract 7 which is 14

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Vlad [161]

Answer: Slope= 5/4
Ans

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3 years ago

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3 years ago

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lawyer [7]

Answer:

The standard deviation of the sample mean differences is _5.23_

Step-by-step explanation:

We have a sample of a population A and a sample of a population B.

For the sample of population A, the standard deviation $\sigma_A$ is

$\sigma_A = 17.6$

The sample size $n_A$ is:

$n_A = 25$ .

For the sample of population B, the standard deviation $\sigma_B$ is

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The sample size $n_B$ is:

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Then the standard deviation for the difference of means has the following form:

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Finally

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4 years ago

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Answer:

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