Fill in the brackets with the appropriate number 3.28 ^ () = 32.8 ÷ 16 4.6 ÷ 0.25 = 4.6 × () 5.6 ÷ 0.05 = () 58.4 × 0.1 = 8.4 × * () Fill in the appropriate number in brackets 3.28÷()=32.8÷16 4.6÷0.25=4.6×（） 5.6÷0.05=（）÷5 8.4×0.1=8.4÷（） Fill in the appropriate area units in the brackets below The area of Xiaohong's city is about 20 () He lives in a neighborhood of about 8.5 () The garden in the middle of the community accounts for about 1800 ()

3.28÷(1.6)=32.8÷16
4.6÷0.25=4.6×（4）
5.6÷0.05=（560）÷5
84×0.1=8.4÷（1）

What is the median of 36.8, 34.7, 25.8, 24.7, 24.6, 24.1 and 23.2? If you fill in a number of 29.4, the median of this group of data is What's the number of digits

This set of data has been sorted in descending order: 36.8, 34.7, 25.8, 24.7, 24.6, 24.1, 23.2
So the median is 24.7
If you fill in another number 29.4, the data will be 36.8, 34.7, 29.4, 25.8, 24.7, 24.6, 24.1 and 23.2
The median is: 25.25 (the average of the middle two)
Hope to help you!

What is the mode of 2, 4, 4, 5, 3, 9, 4, 5, 1, 8?

Four

If there is a set of numbers 8, 8, x, 6, and the mode of this group of data is the same as the average, what is the median of this set of data

Suppose x = 8
Then the mode is naturally 8
The average is 8
impossible
So it's not right
Suppose x = 6
Then modes 6, 8
The average is 7
incorrect
Then the mode can only be 8
So the average is 8
X=10
So the median is 8

0.1, 3.5, 3.4 () to make the average of this group of data be 2, then you can fill in ()

One

Find the rule 2, - 4,8, - 16,32, - 64. What is the number 2013? What is the nth?

four thousand and twenty-six

2, - 4,8, - 16,... The 2013 number is

The number of 2013 is
2^2013

1,1 / 2,1 / 4,1 / 8,1 / 16. What is the number 2013?

The number of 2013 is 1 / 2 ^ 2012

Look at the following columns: 1, 1 / 2, 1 / 4, 1 / 8, 1 / 16 What's the 100th number? To score

The sequence you give is: 1,1 / 2,1 / 4,1 / 8,1 / 16
Change it into a shape and get: 1 / 2 ^ 0,1 / 2,1 / 2 ^ 2,1 / 2 ^ 3,1 / 2 ^ 4
Note: the first number is zero power of 2, and the second number is the first power of 2
So notice that the numerator is 1 and the denominator is the power of 2. If this number is the nth number, the denominator will be 2 ^ (n-1)
Therefore: the 100th number is: 1 / 2 (100-1) = 1 / 2 ^ 99
Explanation: This is an equal ratio sequence. I'm afraid you haven't learned the knowledge of waiting for you, so the solution is intuitive. If you have, refer to the answer on the third floor

Observe the following rational numbers, 1,1 / 2,1 / 4,1 / 8,1 / 16 According to this rule, what is the 1000th number and the nth number?

1 to the n-i power of 2