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4 years ago

Analyzing a Solution

Mathematics

1 answer:

Readme [11.4K]4 years ago

6 0

Answer:

4x - 3y + 6z.

Step-by-step explanation:

He wrote 62 instead of 6z on the first line.

He made 2 mistakes on the last line:

He didn't subtract the x terms, there was no term = 5.

The -3y + 6z does not simplify to 3yz, the terms have an add process not a multiply.

The correct solution is

5x - x - 3y + 6z

= 4x - 3y + 6z.

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

When prior estimate of population proportion is known , then the formula to find the required sample size is given by :-

$n=p(1-p)(\dfrac{z^*}{E})^2$

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As per given , we have

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3 years ago

Pls help 25h²- 16t² factorise it

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Answer:

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Step-by-step explanation:

25h² - 16t²

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factor:

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