How much is 3 / 4 minus bracket minus 11 / 6 plus bracket minus 7 / 3?

How much is 3 / 4 minus bracket minus 11 / 6 plus bracket minus 7 / 3?

3/4-(-11/6)+(-7/3)
=9/12+22/12-28/12
=3/12
=1/4

The problem of Bernoulli equation
Kinetic energy per unit mass of liquid
How did you get here

Bernoulli equation: P1 + ρ GH1 + (ρ V1 ^ 2 / 2) = P2 + ρ GH2 + (ρ V2 ^ 2 / 2), where p is the pressure, ρ is the liquid density, h is the height to the reference plane, and V is the liquid velocity

Given the function f (x) = | LG (x-1) | if a ≠ B, f (a) = f (b), then the value range of a + 2b is

The function f (x) = | LG (x-1) | if a ≠ B, f (a) = f (b) | LG (A-1) | = | LG (B-1) | LG (A-1) = LG (B-1) or LG (A-1) = - LG (B-1), that is, a = B (rounding) or LG (A-1) + LG (B-1) = 0  LG [(A-1) (B-1)] = LG1, that is, (A-1) (B-1) = 1 | ab-a-b = 0, that is, B = A / (A-1) is known, then a > 1

What are the letters for north latitude and south latitude
It's a stupid question, but I really don't know

North latitude n
South latitude s

If the sum of three consecutive even numbers is 102, the middle number is X. can you make an equation to find the value of X? What are the other two numbers

(X-2)+x+(x+2)=102
The solution is: x = 34
The other two numbers are: X-2 = 32; X + 2 = 36

Given that the equation x & sup2; + (A-3) x + 3 = 0 has a solution in the range of real number and the solution is greater than 1 and less than 2, then the value range of a is
(a-3)^2-12>=0,
a> = 3 + 2 √ 3 or A0, a > - 1 / 2
in summary,
The range of a is: - 1 / 20, a > - 1 / 2
I don't understand

If the solution is greater than 1 and less than 2, there will be 2

How many hours is an hour and five minutes

1.12

If the square of a number is 121, then the number is (?)

Plus or minus 11

High school mathematics known function f (x) = |x-1 | + |x-2|
1. If f (x) ≥ m is constant, find the value range of real number M
2. If f (x) ≤ 2, find the value range of real number X

1
When x1
m≤1
When 1 ≤ x ≤ 2, f (x) = 1
m≤1
When x > 2, f (x) = 2x-3 > 1
m≤1
In conclusion: m ≤ 1
two
When x

In the scale of 1:2000 drawings, the length of a piece of land is 2.5cm and the width is 1.5cm. How many square meters is the actual area of this piece of land?

Scale data show that one centimeter on the map represents the actual 20 meters. Therefore, the actual length of the site is 50 meters, the width is 30 meters, and the area is 1500 square meters