3 years ago

How to rewrite equations in standard form

1 answer:

5 0

Standard form is Ax+By=C

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Alecsey [184]

A variable is an unknown value in any addition,subtraction,multiplication,and/or division equation

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Ad libitum [116K]

Step-by-step explanation:

$200 - 6 \times 19.98$

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Answer:605052^11

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ANEK [815]

Answer: 20

Step-by-step explanation:

Formula to find the minimum sample size(n) when prior population standard deviation $(\sigma)$ is known.

$n=(\dfrac{z^c\times\sigma}{E})^2$ , where E = Margin of error , $z^c$ = Critical z-value for c confidence interval.

Given : E = 225 g , $\sigma=600$ g

Critical z value for 90% confidence = 1.645

Now, $n=(\dfrac{1.645\times600}{225})^2$

$n=(\dfrac{987}{225})^2$

$n=(4.38666666667)^2=19.2428444\approx20$

Hence, the required minimum sample size = 20

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3 years ago

sveta [45]

Answer:

Step-by-step explanation:

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4 years ago