Simple calculation of 8 * (X-5) = 1

RELATED INFORMATIONS

• 1. 2lg(2x-1)=lg(-2x+7)+lg(x+1)
• 2. On the calculation of Newton's law 1. A truck with a mass of 50000kg runs along a smooth horizontal road at a speed of 0.3m/s, with a rope trailing behind it. If the tension of the rope is 250N, how long does it take to stop the truck? 2. There is a speed limit sign of 30km / h in a certain section. After the driver makes an emergency brake in this section, the inspector measures that the length of the brake trace is 12m. If the dynamic friction coefficient between the tire and the road is 0.6, ask the driver whether he has violated the speed limit specified in this section of the road. (hint: calculate the acceleration when braking from the braking friction, and then calculate the initial speed from the kinematic formula.)
• 3. As shown in the figure, pdce is rectangular, ABCD is trapezoidal, plane pdce ⊥ plane ABCD, ∠ bad = ∠ ADC = 90 # 186;, ab = ad = # 189; CD = a, PD = √ 2 (1) If M is the midpoint of PA, the MDE of AC ‖ plane is proved; (2) Find the size of the sharp dihedral angle between planar pad and PBC
• 4. As shown in the figure, the rectangle efgh is connected to △ ABC, the bottom edge of △ ABC AC = B, the height BD = h, and the height eh = X. try to write out the functional relationship between the rectangle area s and X, and find out the value range of X
• 5. Draw the largest triangle in the square. The area of the triangle is () of the area of the parallelogram
• 6. Draw a triangle with the largest area in a rectangle. The area ratio of the triangle to the rectangle is ()
• 7. Let the length of one side of a triangle with an area of 12 square centimeters be a (?) and the height of this side be h (?). (1) find the analytic expression of the function of H with respect to a and the independent variable a Value range; (2) Is the function of H about a an inverse scale function? If so, please state its scale coefficient; (3) If the area of the triangle is changed to a fixed value s (square centimeter), and the rest is unchanged, find the analytic function of H with respect to a Solution
• 8. The girth of an isosceles triangle is 16cm, the height of its bottom is 4cm
• 9. It is known that the length of the base and the waist of an isosceles triangle are 6 and 5, respectively
• 10. Be sure to see a reward. Pick up an isosceles triangle with a waist length of 10cm on a rectangular cardboard with a length of 17cm and a width of 16cm Very important, please answer with conscience! (one vertex of triangle and one vertex of rectangle are required to coincide, and the other two vertices are on the side length of rectangle). Please draw a figure or use words to show the detailed drawing process and find the method of drawing acute angle
• 11. The simple calculation is 5.7 × 1 + 2.5 △ 47.23 + 14.75-6.87 + 2.77-8
• 12. Simple calculation 7.4 * 9.8-14.5
• 13. Calculation 1 + 2 + 3.10=
• 14. Calculation root sign (LG ^ 25-2lg5 + 1)
• 15. Is lg5 * lg5 (lg5) ^ 2 or LG (5 ^ 2) or LG10
• 16. How to calculate LG (√ 3 + √ 2) + LG (√ 3 - √ 2)?
• 17. So how to use the M + on the calculator? For example, how to solve the following problem: 3.5 × 8 + 4.5 × 3 + 4 × 4 + 10.5 × 5... I'm wrong
• 18. No computer Who can help to calculate lg3.51 * 10-8 with calculator And lg9.49 * 10-7 (the - 7th power of 10)
• 19. Simplify the formula | 1-x | + | 2x + 3 | + | X-5 |
• 20. [mathematics of senior one] if f (x) satisfies f (x) = - f (x + 3 / 2) and f (- 2) = f (- 1) = - 1, f (0) = 2, then f (1) + F (2) +. F (2009) =?