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Alja [10]
3 years ago
12

Round 489 to the nearest ten​

Mathematics
2 answers:
Helga [31]3 years ago
7 0

Answer:

<em>5</em><em>0</em><em>0</em>

Step-by-step explanation:

<em>4</em><em>8</em><em>9</em><em> </em><em>w</em><em>h</em><em>e</em><em>n</em><em> </em><em>r</em><em>o</em><em>u</em><em>n</em><em>d</em><em>e</em><em>d</em><em> </em><em>t</em><em>o</em><em> </em><em>t</em><em>h</em><em>e</em><em> </em><em>n</em><em>e</em><em>a</em><em>r</em><em>e</em><em>s</em><em>t</em><em> </em><em>1</em><em>0</em><em> </em><em>i</em><em>s</em><em> </em><em>5</em><em>0</em><em>0</em>

Lynna [10]3 years ago
6 0
Your answer is 500. The tenths place is above half so that wouls round up to 500.
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A researcher for an airline interviews all of the passengers on five randomly selected flights.
antoniya [11.8K]

Answer

Cluster sampling. See explanation below.

Step-by-step explanation:

For this case they not use random sampling since we are selecting people from flights. Because we select just 5 random flights.

Is not stratified sampling since we don't have strata clearly defined on this case, and other important thing is that in order to apply this method we need homogeneous strata groups and that's not satisfied on this case.

Is not convenience sampling because they NOT use a non probability method in order to select the people from the flights.

So then the only possible method is cluster sampling since we have clusters clearly defined (Passengers from the airlines), and we satisfy the condition of homogeneous characteristics on the clusters and an equal chance of being a part of the sample, since we are selecting RANDOMLY, the 5 flights to take the information.

6 0
2 years ago
What is 7.2 times 10 to the 7th power times 14.6 x 10 to the 5th power?
Alexxx [7]

7 x 10^{7}  times 14.6 x10^{5}

<em>Multiply 7 and 14.6 and add exponents</em>

Final Answer 102.2 and 10^{5}

hope that helps :)

6 0
3 years ago
Read 2 more answers
He daily milk production of guernsey cows is approximately normally distributed with a mean of 35 kg/day and a standard deviatio
soldier1979 [14.2K]

Answer:

25.1 kg

Step-by-step explanation:

A suitable probability calculator can tell you the 5th percentile of this distribution.

7 0
3 years ago
Which is the better deal: 8 ounces of shampoo for $0.89 or 12 ounces for 1.47.
Otrada [13]
8 Ounces of shampoo for $0.89
6 0
2 years ago
If a car is 13.5 feet long and there are 3 feet between each car, how many cars can be on a mile section of the highway?
Vikentia [17]

1 mile = 5,280 feet

Car + space = 13.5 + 3 = 16.5 feet

5,280 / 16.5 = 320

Answer: 320 cars

6 0
2 years ago
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