Xiao Gang and Xiao Ming are in the 100 meter race. When Xiao Gang runs 80 meters, Xiao Ming is 40 meters away from the end. Then when Xiao Gang runs to the end, how many meters is Xiao Ming away from the end?

twenty

Xiaoming, Xiaoqiang, Xiaogang, Xiaoguang and Xiaoxin race. Xiaogang runs to the finish line before Xiaoguang and Xiaoming. Xiaoqiang runs to the finish line after Xiaogang. There are two sides who reach the finish line between Xiaoxin and Xiaoguang. Can you arrange the order of their five people to reach the finish line?
Xiaoming, Xiaoqiang, Xiaogang, Xiaoguang and Xiaoxin race. Xiaogang runs to the finish line before Xiaoguang and Xiaoming. Xiaoqiang runs to the finish line after Xiaogang. There are two people who reach the finish line between Xiaoxin and Xiaoguang. Can you arrange the order of their five people to reach the finish line?

Xiaoxin, Xiaogang, Xiaoqiang, Xiaoguang, Xiaoming
Description: Xiaogang is in front of Xiaoguang and Xiaoming. Xiaoqiang follows Xiaogang and is in front of Xiaoguang and Xiaoming
The two people between Xiaoxin and Xiaoguang are Xiaogang and Xiaoqiang behind him. It is known that Xiaoguang is behind Xiaogang, which means Xiaoxin is in front of three people. Xiaoming won't talk about it

10. 21, 8, 23, 14, 7, 2, 25, according to the previous law, what are the following three numbers?
rt

12 45 34

Find the natural number n, so that it can be divided by 5 and 49, and has 10 divisors (including 1 and itself)

According to the analysis, let n = 5 × 49 × m, then n = 5 × 72 × m, so the number of 5 is at least 2, and the number of 7 is at least 3. At this time, the number of divisors composed of 5 and 7 is 2 × 3 = 6, not a factor of 10, so we need to change the total number of factors of 7 from 3 to 5. Therefore, M = 72, then n = 5 × 72 × 72 = n = 5 × 74, then the number of divisors of n is: (1 + 1) / (4 + 1) = 10; Therefore, n = 5 × 74 = 12005

Given that the image of exponential function f (x) passes through points (2,8), find the value of F (5)

Let the exponential function be: F (x) = a ^ x, because the image of the exponential function f (x) passes through the point (2,8), so 8 = a ^ 2, a = 2 √ 2, the obtained exponential function is f (x) = (2 √ 2) ^ x; so f (5) = (2 √ 2) ^ 5 = (2 ^ 5) * (√ 2) ^ 5 = 32 * (4 √ 2) = 128 √ 2, so the value of F (5) is 128 √ 2

I want to know what I should do next
I want to know what I should do next_____ Next

what to do.

It is known that two univariate quadratic equations X & sup2; + 4x + k = 0 about X. in order to make this equation have real roots, the value of K is requested

If the equation x & # 178; + 4x + k = 0 has real roots, then the discriminant Δ = 4 & # 178; - 4K ≥ 0, so K ≤ 4

On the application of quadratic equation of one variable
In the application problem of quadratic equation of one variable, is there any quick solution to the equation?

No, it's all about setting unknowns to find a series of equations with equivalent relations. The key is to find the equivalent relations. You can only list the equations with what kind of relations you find. The trick is used in the process of solving the equations

What is the floor area of a swimming pool?

The floor area of the swimming pool refers to the length of the pool wall multiplied by the width, and the floor area of the swimming pool refers to the length multiplied by the width of the venue

13×23+0.34×27+13×13+57×0.34．

13×23+0.34×27+13×（-13）+57×0.34=13×23+13×13+0.34×27+57×0.34=13×（ 23+13）+0.34×（ 27+57）=13×1+0.34×1=13+0.34=13.34．

Xiao Gang and Xiao Ming are in the 100 meter race. When Xiao Gang runs 80 meters, Xiao Ming is 40 meters away from the end. Then when Xiao Gang runs to the end, how many meters is Xiao Ming away from the end?