|
190603
|
In the coordinate system, for a quadrilateral, the coordinates of four vertices are (1,0), (3,0), (3,1), (1,1) respectively. There is a straight line passing through the point (0,0) and divide the quadrilateral area into two equal parts. What is the slope of this straight line?
|
|
|
If 6a + b = 48, what is the value of b?1. $${4}{a}^{2}={50}$$2. $${4}{a}={b}+{2}$$
|
|
190215
|
Is 4 a factor of 4?
1: x-y is even.
2: x+y is even.
|
|
190321
|
x=(x+y+z+w)/4 -1, y = (x+y+z+w)/3 - 3 , z=(x+y+z+w)/4 , w=16.x=?
|
|
191031
|
Is the number of the roots of $$x^2-4x+c=0$$ greater than 1?
(1)C≥-4
(2)C≤4
|
|
|
If $$x\neq$$ 0, then $$({x}+\frac{1}{x})^{2}-({x}-\frac{1}{x})^{2}=$$
|
|
|
一共20个球，7个R色，5个B色，8个G色，一次从中拿两个，问的是这两个颜色是B色和G色的概率
|
|
190113
|
$$\frac{1}{2}$$($$\sqrt{3}$$+$$\sqrt{7}$$)+2$$\frac{1}{\sqrt{3}+\sqrt{7}}$$=?
|
|
KMFPS
|
If $$\sqrt{{3}-{2}{x}}=\sqrt{2x}+{1}$$,then $${4}{x}^{2}=$$
|
|
Manhattan
|
How many units long is the straight line segment that connects the points (-1,1) and (2,6) on a rectangular coordinate plane?
|
|
Manhattan
|
If $$abcd \neq 0$$, is $$ab^2c^3d^4 < 0$$?(1) $$ab^2c^3 < 0$$(2) $$b^2c^3d^4 < 0$$
|
|
OG20 OG2022
|
Is x = y ?
1.$$\frac{2x}{3} - \frac{y}{3} = \frac{1}{3}$$
2.$$\frac{x}{4}-\frac{y}{4} = 0 $$
|
|
OG19-数学分册
|
If S is the sum of the reciprocals of the 10 consecutive integers from 21 to 30, then Sis between which of the following two fractions?
|
|
200301
|
The cone has 4 sides (similar to 4-sided dice). The numbers on it are 1, 2, 3, 4 and now toss it twice. What is the probability that the sum of the two numbers is a multiple of 3?
|
|
OG18-数学分册
|
$$17^{3} + 17^{4} = $$
|
|
OG19-数学分册
|
$$17^{3}+17^{4}$$=
|
|
200301
|
A sequence 1,2,3,4,5,11, x, and x is a positive integer, is x≥4?
(1). The median of the sequence is 4
(2). x ≥ the median of the sequence
|
|
200301
|
Is 5 a factor of n?
(1)the remainder is 1 when n is divided by 4
(2)the remainder is 4 when n is divided by 7
|
|
OG19-数学分册
|
A certain right triangle has sides of length x, y, and z, where x < y < z. If the area of this triangular region is 1, which of the following indicates all of the possible values of y?
|
|
OG18-数学分册
|
A certain right triangle has sides of length x, y, and z, where x < y < z. If the area of this triangular region is 1, which of the following indicates all of the possible values of y ?
|