Design an inequality ax < B and a is not equal to 0, whether there is a solution 1, write algorithm 2 and draw the flow chart

There are solutions in two cases
(1) When a > 0,
ax＜b
x＜b/a
(2) When AB / A

It is known that ad is the angular bisector of triangle ABC, and the angle ADC is 1 / 2（

Big brother, where's e?

The rhododendrons in people's Park are four times as many as those in Changchun park. 188 pots were moved from people's Park to Changchun Park, and Changchun park has 25 more pots than people's Park. How many pots of flowers were there in people's Park and Changchun park

Because there are 25 more basins in Changchun park after moving, as many as Houhe people's Park
So 188-25 = 163
So people's Park is more than Changchun Park: 163 * 2 + 25 = 351
In the beginning, the people's Park was four times that of Changchun Park, that is, three times more: 351 / 3 = 117117 * 4 = 468
So there are 117 pots in Changchun Park and 468 pots in people's Park

Is the angle between the two sub vectors in the triangle rule the same as that in the parallelogram rule? Is it essentially the same?

The angle between two vectors is the angle in the direction of the vector, which is the angle between two vectors when the starting point of the vector is translated to the same point
The essence of triangle rule and parallelogram rule is the same, because vectors can be translated arbitrarily

1. If the inequality (a + 3) x > A + 3, then the value range of a is_ .
2. It is known that there are five integer solutions for the system of x-a ≥ 0 (1) 3-2x > - 1 (2), which are__________ The range of a is_ .
3. When m__ The equation (M + 2) X-2 = 1-m (4-x) has integer solution
4. In the system of equations x + y = a 1, 2x-y = 6 2, we know that x > 0, y

1. (a + 3) (x-1) > 0, because x is not a fixed value, so a ≠ - 3
2. X < 2, so it is 1, 0, - 1, - 2, - 3, because x ≥ a, so - 4 < a ≤ - 3
3. We get x = (3-4m) / 2, so m should be one fourth of the odd number
4. Y = 2x-6 ＜ 0, so 3 ＞ x ＞ 0, the original formula = x + y = 3x-6 = a,
So 3 ＞ a ＞ - 6
5、②*4=4x+16y-12z=0(③）,③-①=21y-14z=0,y=2/3z,
We substitute 3x = Z, so x: Y: z = 1:2:3

The functional relationship between price f (T) and time t of a commodity in recent 30 days is f (T) = t + 10 (0

F (T) g (T) = - t square + 25t + 350
Symmetry axis t = 25 / 2
So t = 12,13 is the maximum value of 506

The application of derivative in function
Why f (x) = x ^ 3 + 3x, so f '(x) = 3x ^ 2 + 3 = 3 (x ^ 2 + 1)

f(x)=x^3+3x
f'(x)=(x^3+3x)'
=(x^3)'+(3x)
=3x^2+3x'
=3x^2+3
=3(x^2+1).

What is the value of vector a = (x1, x2), vector b = (Y1, Y2), AB

x1*y1+x2*y2

If the coordinates x and y of point P (x, y) satisfy xy = 0, try to determine the position of point P on the coordinate plane

When x = 0, the point is on the y-axis; when y = 0, the point is on the x-axis; when x = 0, the point is on the origin; when x = 0, y = 0, the point is on the origin

Three digit addition and subtraction

211-30=
134+28 =
125-32=
111-17=
147-90=
798-89=
356-65=
237+19=
259-32=
321-23=
473-321=
349-107=
683-238=
756-350=
333-98=
425-256=
731-290=
569-354=

Design an inequality ax < B and a is not equal to 0, whether there is a solution 1, write algorithm 2 and draw the flow chart