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3 years ago

What is -3(m+6)-(11+9m)

Mathematics

2 answers:

Lady bird [3.3K]3 years ago

7 0

-3(m+6)-(11+9m)

distribute

-3m -3*6 -11-9m

-3m -18 -11-9m

-12m -29

ELEN [110]3 years ago

3 0

First use the distributive property to multiply the first set of parentheses with the -3 and the second parentheses flip the signs because its negative

(-3m-18)+(-11-9m)

Then remove parentheses because it is addition and combine like terms

-12m - 29

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Step-by-step explanation:

Given that:

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Thus ; the finite population of the standard error is not applicable in this scenario;

Therefore;

The standard error is determined as:

$\sigma_{\bar x} = \dfrac{\sigma}{\sqrt{n}}$

$\sigma_{\bar x} = \dfrac{10}{\sqrt{50}}$

$\sigma_{\bar x} = 1.414$

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Therefore;

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