How to press dash on computer keyboard

The dash is usually on the right side of the number key "0". When you press it, you should also press the "up shift" key
You can also open the soft keyboard in the input bar, which has many internal symbols!

RELATED INFORMATIONS

1. The circumference of the rectangle is 24 cm, the ratio of length to width is 2:1, and the area of the rectangle is 2______ ．
2. Find the range of the real number m so that the two X1 and X2 of the equation x2-2 (m-1) x + 3m-6 = 0 satisfy the following conditions: X1 > 2, X2 > 2 Find the range of real number m, so that the two X1 and X2 of equation x2-2 (m-1) x + 3m-6 = 0 satisfy the following conditions: X1 > 2, X2 > 2, but the answer given by the teacher is - 1 < m < 2
3. 1. How to add or subtract 2, 3, 4, 5, 6, 7 to make it equal to 11
4. What is 8 and 3 / 8 minus 3 and 1 / 15
5. On the roots of equations and zeros of functions If the square-x-1 = 0 of equation 2aX has exactly one solution in (0,1), then what is the value range of a?
6. 8. 7 + x = 14 to solve the equation
7. How to solve the equation 50 + x = 3x
8. If there are only three positive integer solutions to the inequality 2x-m ≤ 0, then the range of M is?
9. Given that point a (- 3,2a-1) and point B (B, - 3) are symmetric with respect to the origin, what is the coordinate of the symmetric point P 'of point P (a, b) with respect to the y-axis?
10. K in y = KX + B is the slope. What is the slope
11. Simplification before calculation Can do can do
12. The diameter of circle a is 10 cm, which is 50% of the diameter of circle B. what is the circumference of circle B Come on, come on
13. Given that the generatrix length of the cone is 30, and the center angle of the fan-shaped circle is 120 ° after the side expansion, the bottom radius of the cone is 0______ Detailed explanation
14. Use a square whose side length is a centimeter to make a square
15. The sides of the two squares are 4cm and 8cm respectively, and the area of the shadow is___ square centimetre There is no picture
16. Given the line I: y = 3x + 3, the equation of the line x-y-2 = 0 with respect to the l-symmetric line is obtained From x-y-2 = 0 and 3x-y + 3 = 0, x = - 5 / 2, y = - 9 / 2 Then three straight lines intersect at the point: (- 5 / 2, - 9 / 2) Let the linear equation be y + 9 / 2 = K (x + 5 / 2) The angle from the straight line x-y-2 = 0 to the straight line 3x-y + 3 = 0 is equal to the angle from the straight line 3x-y + 3 = 0 to the straight line (3-1)/(1+3),=(K-3)/(1+3k) So, k = - 7 So the linear equation is: 7x + y + 22 = 0 Why is the angle from the straight line x-y-2 = 0 to the straight line 3x-y + 3 = 0 equal to the angle from the straight line 3x-y + 3 = 0 to the straight line (3-1)/(1+3),=(K-3)/(1+3k)
17. If point E is the midpoint of BC and point F is the midpoint of AD, then the angle between AB and EF is 45?
18. Given rectangle ABCD, where AB = 5, BC = 8, AE ‖ BD, trapezoid ABDE, find the area of triangle BDE It's a rectangle ABCD with a triangle ade on it,
19. Fold one side of rectangle ABCD along de so that point C falls at point F on the edge of ab. if ad is equal to 8 and the area of triangle is 60, calculate the area of triangle Dec
20. As shown in the figure, in the rectangular ABCD, AC is a diagonal, rotate ABCD clockwise 90 ° around point B to gbef position, h is the midpoint of eg, if AB = 6, BC = 8, then the length of segment ch is () A. 25B. 21C. 210D. 41