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2 years ago

How to calculate square root 1.4 without calculator

Mathematics

1 answer:

Oxana [17]2 years ago

6 0

Answer:

Approximate only

Step-by-step explanation:

the perfect square smaller than 1.4 is 1, because $1^2 =1$

Take the difference between the two, 1.4 -1 = 0.4

Put the whole with 1. the part will be as follow:

$1 \frac{0.4}{double~the ~whole} =1\frac{0.4}{2}$

$=1+0.2= 1.2$

Note: just approximate!! with calculator, it is 1.18321

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2 years ago

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2 years ago

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Step-by-step explanation:

The standard error for the difference in means is given by :-

$SE.=\sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma^2_2}{n_2}}$

where , $\sigma_1$ = Standard deviation for sample 1.

$n_1$ = Size of sample 1.

$\sigma_2$ = Standard deviation for sample 2.

$n_2$ = Size of sample 2.

Let the sample of Latino name is first and non -Latino is second.

As per given , we have

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The standard error for the difference in means will be :

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$SE.=\sqrt{\dfrac{6724}{9}+\dfrac{10201}{14}}$

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2 years ago