How to play long dash
Using keyboard to input directly can't meet the requirements of the building owner, but fortunately there is a flexible method: switch to the intelligent ABC input method (or five strokes / Microsoft Pinyin), locate the tab character on the soft keyboard, and press the number 9 twice to type out the character in the form of -
RELATED INFORMATIONS
- 1. The perimeter of a rectangle is 24cm. If the length of the rectangle is reduced by 2cm and the width is increased by 3cm, it will become a square. Find the area of the original rectangle? Use x solution
- 2. It is known that the equation of X, where the square of x plus (2m minus 1) x plus the square of M is equal to 0, has two real roots x 1 and x 2
- 3. 6 / 11 △ () 6 / 16 × 4 / 17 5 / 16 3 / 17 6 / 39 / 4 / 4 / 4 1 / 4 9 / 4 × 4 / 1 Fill in ">" < "=" in () for the quickest answer
- 4. How many hours is 1600 minutes in three? Thank you very much,
- 5. On the roots of equations and the zeros of functions 1. It is known that the real numbers a, B and C are three numbers in the domain of y = f (x), and satisfy a
- 6. Solution equation (x + 6) (X-7) = 14
- 7. How to solve the equation (x-3) + (3x-3) = 50
- 8. It is known that there are only six integer solutions to the inequality system X − a > 03 − 2x > 0, then the value range of a is () A. (-∞,-4)B. [-5,-4)C. (-5,+∞)D. (−5,−32)
- 9. Given that point a (a-2,2b + 1) is a point in Cartesian coordinate system, its symmetric point about origin is B (- 2, - 5), try to find the arithmetic square root of ab The process of calculation
- 10. Find the slope of the straight line 3x + 4y-5 = 0 and its intercept (process) on x-axis and y-axis
- 11. First simplify and then calculate, as follows Given x = (√ 3 - √ 2) \ (√ 3 + √ 2), y = (√ 3 + √ 2) \ (√ 3 - √ 2), find the value of x ^ 2 + 2XY + y ^ 2 and X / y + Y / X
- 12. The radius of circle a is 2 cm, and the diameter of circle B is 4 cm. Are the perimeter of the two circles equal?
- 13. If point a (- 2, Y1) and point B (- 1, Y2) are both on the image with inverse scale function y = - 2 / x, then the size relationship between Y1 and Y2 is y1
- 14. As shown in the figure, the image of the first-order function Y1 = x + 1 and the image of the inverse scale function y2 = KX (k is a constant and K ≠ 0) pass through point a (m, 2) (1) find the coordinates of point a and the expression of the inverse scale function; (2) compare directly with the image: when x > 0, the sizes of Y1 and Y2
- 15. Find the intersection coordinates a and B of the inverse scale function y = 2 / X and the linear function y = 2x-1, and find the area of the triangle AOB
- 16. Let the image of inverse scale function y = K / X and linear function y = ax + 1 intersect at a (- 1,2) B (2, - 1), and the area of triangle abo (o is the origin of coordinates)
- 17. How to calculate the area of the triangle formed by the intersection of the first-order function and the inverse scale function and the origin of the coordinate?
- 18. How to solve the triangle area of inverse proportion function
- 19. Analytic expression of inverse proportion function of triangle area
- 20. The relationship between triangle area and K value in inverse scale function image I know that the area of the triangle enclosed by the points on the image and the coordinate axis perpendicular to the inverse scale function is equal to half of the area of the triangle. But if there is a point on the image, another point is at the origin, and the three sides are not perpendicular to the coordinate axis, is this conclusion true?