2 years ago

I need the answer to this text please

Mathematics

1 answer:

hjlf2 years ago

5 0

Answer:

A=Z

B=X

AB=ZX

AC=ZY

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Mean= 5.70

Standard deviation= 0.132

Step-by-step explanation:

For the distribution of sample mean:

Mean of the sampling distrubution = \mu = 5.70

Standard deviation of the sampling distrubution = sigma/sqrt{n} = 1.7201 /sqrt{170} = 0.132

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3 years ago

Please help! Given the function problem

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Answer:

Step-by-step explanation:

So we have the function:

$f(x)=\frac{9}{5}x+32$

To find the inverse, flip f(x) and x, change f(x) to f⁻¹(x), and solve for it. Thus:

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$f^{-1}(x)=\frac{5}{9}(x-32)$

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Can anybody please help me out with this question I would really appreciate it so much. Please and thank you .

PolarNik [594]

(7x+2)° = (9x–8)°

=>7x –9x = –8–2

=> –2x = –10

=> x = 10/2

=> x = 5

<ADB = (7x+2)°

= 7×5+2

= 37°

<BDC = (9x–8)°

= 9×5–8

= 45 –8

= 37°

<ADC = 37° + 37°

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Answer: =6xy+x..............

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