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3 years ago

Solve for x. 12-3 =3x

Mathematics

2 answers:

DIA [1.3K]3 years ago

7 0

12-3=3x
9=3x
x=3(9 divide by 3)

Dmitry_Shevchenko [17]3 years ago

6 0

12 minus three is 9. 9 divided by 3 is 3. so X is three

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swat32

Answer:

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Step-by-step explanation:

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$SD = \sqrt{\frac{63 - 8 * (-0.625)^2}{8-1} }$

SD =2.93

Under the null hypothesis, the formula for the test statistics will be given by:

$t_{s} = \frac{ \bar{d}}{s_{d}/\sqrt{n} } \\t_{s} = \frac{- 0.625}{2.93/\sqrt{8} }$

$t_{s} = -0.6033$

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3 years ago

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