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lilavasa [31]
2 years ago
12

Solve for x, y, and z 4x+6y−3z=24 3x+4y−6z=2 6x−3y+4z=46

Mathematics
1 answer:
Nitella [24]2 years ago
7 0

3nf2i34nrg2i4ngio24cnn4Step-by-step explanation:

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What is the relationship between RR' and SS'?


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Ty is eight inches shorter than his brother reece. if ty is 42 inches tall, how tall is reece?
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3 years ago
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Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proporti
hodyreva [135]

Answer:

The sample size n = 4225

Step-by-step explanation:

We will use maximum error formula = \frac{z_{a} S.D}{\sqrt{n} }

but we will find sample size "n"

\sqrt{n}  = \frac{z_{a} S.D}{maximum error}

Squaring on both sides , we get

n  = (\frac{z_{a} S.D}{maximum error})^2

Given 99% confidence interval (z value) = 2.56

given maximum error = 0.02

n  = (\frac{z_{a} p(1-p)}{maximum error})^2

n≤ (\frac{2.56X\frac{1}{2} }{0.02}) ^{2}    ( here S.D = p(1-p) ≤ 1/2

on simplification , we get n = 4225

<u>Conclusion</u>:

The sample size of two samples is  n = 4225

<u>verification</u>:-

We will use maximum error formula = \frac{z_{a} S.D}{\sqrt{n} } = \frac{2.56 1/2}{\ \sqrt{4225} }  = 0.0196

substitute all values and simplify we get maximum error is 0.02

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How t solve polynomials????? HELPPPP EXAM TMRW!!!!
Alecsey [184]

Answer:

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Step-by-step explanation:

It's pretty straight forward, just put the values into your calculator. The question is asking to evaluate instead of simplifying, so this works. If you don't have a calculator, here are some tricks. Do them step by step in your head slowly if you have to, for fractions do them alone, and then divide them. Also in D, don't let the second value of (3)3)0 scare you, any exponent with a 0 in it is automatically 1! Hope I could help.

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What is the equation of this circle in general form?
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Answer:

The answer is B

Step-by-step explanation:

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3 years ago
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