The position of rational numbers a, B, C on the number axis is shown in Figure 3, which is the comparison of the size of a, - A, B-B, C, - C ----A ------- B --- o ------ C ------ use

The position of rational numbers a, B, C on the number axis is shown in Figure 3, which is the comparison of the size of a, - A, B-B, C, - C ----A ------- B --- o ------ C ------ use

You can assume a = - 4, B = - 1, C = 2
So a = - 4 - a = 4, B = - 1 - B = 1, C = 2 - C = - 2
So - a > C > - b > b > - C > A
You can also show the opposite numbers of a, B and C on the number axis for comparison

It is known that the solution of the equation AX-2 = 3x-1 about X is 2, and the value of a is obtained

2a-2=3x2-1
a=3.5

(1 / 2) the differences between a great many and a good many and between a great deal of and a good deal of

A good deal of
A great many of
A good many of, a lot of
A great deal of

In the triangle ABC, angle c = 90 degrees, ab = C, (1) if angle a = 30 degrees, find BC, ac. (2) if angle a = 45 degrees, find BC, AC

1) In a right triangle, the side opposite 30 degrees is half of the hypotenuse, that is BC = C / 2,
AC²=c²-(c/2)²=3c²/4
AC= √3*c/2
(2)AC=BC
AC²+BC²=c²
AC²=BC²=c²/2
AC=BC=c/√2

What are the words or phrases / sentence patterns that mean "should" in English?
thank you.

You should do
should be supposed to
You ought to do
You had better do

Say what the following letters mean: ABC BC BBC ad CAAC a.m

ABC Agricultural Bank of China BC before Christ British Broadcasting Corporation ad advertisement CAAC Civil Aviation Administration of C

What is the theme of the 2010 World Expo in Shanghai? What do you think of it

What is the theme of Expo 2010 Shanghai? What do you think of this theme?

The denominator of the simplest fraction is reduced to 1 / 4 of the original one, and the numerator is expanded three times to be equal to 7 / 5. What is the simplest fraction?

The denominator of the simplest fraction is reduced to 1 / 4 of the original one, and the numerator is expanded by 3 times, which is equivalent to expanding the value of this fraction by 12 times
Results = 36 / 5
So, the simplest fraction is 3 / 5

Is the predicate of the phrase "each and everyone" singular or plural
Try not to write only singular and plural. The following answers, singular and plural, will make me confused. Please answer this question

It should be singular. It means individual
Each of you has a book now

Given that x is not equal to y, and the square of X + 3x-7 = 0, the square of Y + 3y-7 = 0, find the value of 1 / x + 1 / y

According to the known conditions, X and y are two parts of the equation K ^ 2 + 3k-7 = 0
According to Weida's theorem: x + y = - 3, xy = - 7
1/x + 1/y = (x+y)/xy=-3/-7=3/7