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3 years ago

Solve for X Please walk me through the steps, I understand most of it I just forgot how to do it

Mathematics

1 answer:

nadya68 [22]3 years ago

8 0

Answer:

x=8

Step-by-step explanation:

first you need to find the unknown corner so you do 180-71= 109

then find the interior angle degree (n-2)*180 (n=number of sides) so (4-2)*180=2(180)=360

then set everything equal to 360:

10x+6+13x-2+8x-1+109=360

(combine like terms)

31x+112=360

(subtract 112 form both sides)

31x=248

(divide both sides by 31)

x=8

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Evaluate 144 to the power of one half

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Answer:

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Step-by-step explanation:

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Researchers measured the bone mineral desnsity of the spines of 94 women who had taken teh drug CEE. The mean was 1.016 g/cm2, a

Valentin [98]

Answer:

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Step-by-step explanation:

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$\alpha = \frac{1-0.95}{2} = 0.025$

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$M = z*\frac{\sigma}{\sqrt{n}}$

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$M = 1.96*\frac{0.155}{\sqrt{94}} = 0.0310$

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Answer:

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