3 years ago

I need help with this please

Mathematics

2 answers:

Roman55 [17]3 years ago

6 0

Answer:

the answer is 80 degrees. angle between 2 parrael line is same

sasho [114]3 years ago

3 0

80 degrees i believe is the answer

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3 years ago

Log x^4-logx^3=log 3x-log2x solve

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Answer:

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Step-by-step explanation:

Log x^4-logx^3=log 3x-log2x solve

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3 years ago

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inysia [295]

Answer:

a) E = 2482.90

b) 99% Confidence interval: (41510.1,46475.9)

Step-by-step explanation:

We are given the following in the question:

Sample mean, $\bar{x}$ =$43,993

Sample size, n = 90

Alpha, α = 0.051

Sample standard deviation, s = $9,144

a) The margin of error

Formula:

$z_{critical}\text{ at}~\alpha_{0.01} = 2.576$

$E =z_{critical}\times \displaystyle\frac{s}{\sqrt{n}}\\\\E = 2.576\times \frac{9144}{\sqrt{90}}\\\\E = 2482.90$

b) 99% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$43993 \pm 2482.90 = (41510.1,46475.9)$

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3 years ago

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Answer:

7/4

Step-by-step explanation:

x and y are exchanged for each other, and the sign is flipped.

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