What do you mean by the computer in the math problem

/It's a fraction line
3 / 4 = 3 / 4
Don't understand can ask!
Wang CAI

RELATED INFORMATIONS

1. Given that 30's x square = 2010 and 67's y square = 2010, then 2 / x + 2 / y =?
2. Divide a parallelogram into two trapezoids, in which () is always equal A. Area B. top and bottom and C. perimeter D. height
3. Xiao Hong uses 64 go pieces to form a regular hexagon on the go board. The number of pieces on each side is equal, and there are pieces at four vertices. How many pieces are placed on each side? Sorry, I made a mistake. It's a square Write the formula according to the standard of grade 4
4. As shown in figure (1), stack the right angle vertex C of two right angle trigonometric rulers together, (1) If ∠ DCE = 35 °, ACB=______ If ∠ ACB = 140 °, then ∠ DCE=______ (2) guess the special relationship between ∠ ACB and ∠ DCE, and explain the reason; (3) as shown in figure (2), if the apex a of 60 ° acute angle of two same right angle trigonometric ruler coincides, then what is the relationship between ∠ DAB and ∠ CAE, please explain the reason
5. As shown in the figure, it is known that ∠ AOB = 90 °, EOF = 60 °, OE bisects ∠ AOB, of bisects ∠ BOC, and the degrees of ∠ AOC and ∠ cob are calculated
6. Why don't stars fall from the sky?
7. On the 1:30000 scale map, it is measured that a highway is 5 cm long, and it takes 6 days to complete the joint construction by team a and team B. the work efficiency ratio of team a and team B is 2:3. How many meters does team a repair every day?
8. What figure does axisymmetric figure refer to? What two parts of figure does axisymmetric figure refer to
9. The parameter equation is x = cost, y = Sint, 0 ″ t ″ 2pi x=cost,y=sint,0《t《2pi The book says it's a circle, but I think it's a circle Why does t have to move on a circle if t is a straight line?
10. Who is going to talk about the definition, properties and formulas of the inner center, outer center, center of gravity and perpendicularity of a triangle? be deeply grateful Come on
11. Mathematical problems of electronic flea At a certain point K0 on the number axis, the electronic flea picks one unit to K1 to the left, jumps 3 units to K2 from K1 to the right in the second part, jumps 5 units to K3 from K2 to the right in the third part, jumps 7 units to K4 from K3 in the fourth step... Jumps 100 steps according to the above rule, the number shown is 2009 (k100), what is the number shown in the initial position K0 of the electronic flea
12. A mathematical problem is calculated by computer If the number key 5 of your calculator is broken, please find a way to use other number keys to calculate the following questions （1） 4560/60 （2）18*57 （3）1242/54
13. Math problems with calculator What is the cube root of 527? What is the cube root of 0.3612? What is the cube root of three fourths?
14. Math problem: press the calculator for me 260 + 50 * radical 5 =? 60 * the product of radical 2 divided by the sum of 2 and radical 2 Three eighths times the product of the root 41 plus nine sixteenth times the root 89 2 decimal places The first answer is the best
15. About selling calculators! 1、 Oriental specialty store specializes in selling calculators of a certain brand. The purchase price is 12 yuan / piece and the selling price is 20 yuan / piece. In order to promote sales, the specialty store decides to buy more than 10 calculators, and the selling price will be reduced by 0.10 yuan for each additional one (for example, if someone buys 20 calculators, the price can be reduced by 0.10 * (20-10) yuan, and the price can be 19 yuan / piece), but the minimum is 16 yuan / piece (1) How many at least can customers buy at the lowest price? (2) Write out the functional relationship between profit y (yuan) and purchase quantity x (pieces) when x pieces are purchased at one time (x > 10); (3) One day, a customer bought 46 and another customer bought 50. The exclusive store found that the profit of selling 50 was less than that of selling 46. In order to make more money each time, and other sales conditions remained unchanged, how much should the lowest price of 16 yuan be raised at least? Why?
16. Mathematical problems about calculators 4 /（1 ab/c 4 - 1 ab/c 3 ）=?A、48 B、-48 C、28 D、-28 The / after 4 above means divide by
17. 1. There are six taxis in a taxi parking station. After the first taxi leaves, a taxi leaves every four minutes. After the first taxi leaves for two minutes, a taxi enters the station. After that, a taxi returns to the station every six minutes. After the original taxi leaves for one time, another taxi leaves every four minutes, Can't the station leave on time? 2. Someone can go to work by train or car. If he goes to work by train in the morning, he will go by car in the afternoon, and vice versa. In X days, he will go by train 9 times, by car 8 times in the morning, and by train 15 times in the afternoon. What is x? 3. Simplification: i3x-1i + i2x-1i 4. If the value of 2x + i4-5xi + i1-3xi + 4 is constant, find the condition of X and the value of this constant 5. Known a
18. 1. If a worker works for you for 7 days, his reward is a gold bar, but you must give him a gold bar at the end of each day. If you are only allowed to break the gold bar twice, how do you pay the worker? 2. The white snake is 80 feet long. It was driven by the monk Fahai with magic and entered the cave at the speed of 15 / 2 feet in 5 / 14 days. However, the White Snake and he are not reconciled. Its tail grows at the speed of 11 / 4 feet in 1 / 4 days. Now I ask you: how many days does it take for the white snake to enter the cave? (to be listed)
19. As shown in the figure, if the initial input x value is 48, we find that the first output result is 24, the second output result is 12 Then the output result of the 2013 is______ ．
20. (1) 3 out of 10