Round this number to nearest 10,000. 4,278,003

Mathematics

2 answers:

Kazeer [188]3 years ago

5 0

Answer:

4,280,000

Step-by-step explanation:

first you see what number is in the thousands place and you see if is 5+ or 4-. if it is 5+ the 10,000's place will go one higher. If it is 4 or lower it will stay the same. in this case it is 5+ so it will go higher so the 7 would be come an 8 so your answer would be 4,280,000.

s2008m [1.1K]3 years ago

4 0

Hi there!

To Round of the number given, first you have to find the ten thousands place on the given number. Started from ones, tens, hundreds, and moving on, the number in the ten thousands place would be 7 in your case.

Now, looking to the number on the right of 7 which is 8, it is bigger than 5, and therefore, we round up 7 and let 8 go to zero.

Applying this, your answer would be 4,280,003

Hope this helped!

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In a random sample of 16 residents of the state of Washington, the mean waste recycled per person per day was 2.8 pounds with a

kakasveta [241]

Answer: The required confidence interval would be (2.72,2.89)

Step-by-step explanation:

Since we have given that

Mean = 2.8 pounds

Standard deviation = 0.24 pounds

n = sample size = 16

We need to find the 80% confidence interval for the mean waste.

z=1.341

So, the confidence interval will be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=(2.8\pm 1.341\times \dfrac{0.24}{\sqrt{16}})\\\\=(2.8\pm 1.314\times 0.06)\\\\=(2.8-0.07884,2.8+0.07884)\\\\=(2.72116,2.87884)$