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agasfer [191]
3 years ago
5

What expression can be used for estimating 868 divided by 28? Pls help me Thanks

Mathematics
1 answer:
horrorfan [7]3 years ago
7 0
868 is almost 870. 28 is almost 30.

870 / 30 = 29

So 868 / 28 is approximately 29. 
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I need to find the area of a semicircle with a radius of 2 units
MariettaO [177]

Answer:

6.2832 square units (rounded off to four decimal values)

Step-by-step explanation:

Area of a semicircle = \frac{1}{2} × π × r²

r (radius) = 2 units

For our semicircle the area = \frac{1}{2} × π × 2² = 6.28318530718  square units

Or 6.2832 square units (rounded off to four decimal values)

5 0
3 years ago
If each value of the data of the poplation function is doubled which of the following is not correct?
Anna35 [415]

Answer:

The variance is doubled; C

Step-by-step explanation:

Here, we want to select what will be wrong if every number in the dataset is doubled

A. This is correct

The mean is the average of the numbers which is calculated by dividing the sum of the numbers by the count of the numbers

By doubling the numbers, we have simply doubled the sum while the count is same

So what we have as the result of the division will be 2 times what we had initially making the mean doubled

B. The mode is doubled

Yes, this is correct

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Doubling all numbers will not double their frequencies but their values. So the number that was the mode in the previous case will be the same but now doubled

D. The median is doubled

This is correct

The median deals with the middle number.

Since all numbers are doubled in the present case, the median to is also doubled along side as the numbers are now twice what they were evenly

C. This is wrong

The variance has to do with the spread of data

We are actually subtracting values

Since we are doubling across board, the difference between the numbers is the same as this, the variance cannot change

We can look at this from the angle that all others are measures of central tendency looking at having a central figure while the variance is a measure of spread.

3 0
2 years ago
Hospital A has treated 156 cases of E. coli infection in the past year. Hospital B has treated 51 fewer cases. How many cases di
solniwko [45]

Answer:

105 Cases

Step-by-step explanation:

Subtract 156-51

Fewer shows subtraction

6 0
3 years ago
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algol13

Answer:

Yes.

Step-by-step explanation:

x=2

y=6

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0 = 0

7 0
3 years ago
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Feliz [49]

Answer: A

Step-by-step explanation: A shows a turkey sandwich with all the types of bread and a ham sandwich with all the types of bread.

3 0
3 years ago
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