Application of power The thickness of a piece of paper is 0.09mm. Xiaoming's height is 1.6m. Fold the paper continuously (the creases are parallel). How many times do you fold the paper to make it thicker than Xiaoming's height
0.09*2^n>1.6
=>
2^n>17.77777777777777778
=>
n>=5
At least 5 times
RELATED INFORMATIONS
- 1. A power calculation problem! Can you confirm the last number of 3 to the power of 2008? Please give your reasons and calculate the following questions 1. (- 0.125 to the power of 2007) * (- 8 to the power of 2008) 2. (- 2 to the power of 2001) + (- 2 to the power of 2000) 3. Two thirds to the fifth power * (- three thirds to the fifth power) 4. The opposite number of four fifths power of 2008 * (- five fifths power of 2008)
- 2. A difficult problem about the power of mathematics in grade one of junior high school It is known that the 55th power of 2 = a, the 33rd power of 3 = B, and the 22nd power of 5 = C Compare the size of a, B, C
- 3. In order to solve 20 mixed operations of rational numbers,
- 4. Simple puzzle of mixed operation of rational numbers in junior high school mathematics problems 1-1-2.45x8+2.55x(-8) Why can't this formula be simplified, only 1-1-19.6-20.4
- 5. Mixed operation of rational numbers, 1. (simple method) - 99 and 18 / 17 * (- 9) 2、-1²-【10/7+(-12)/6】²*(-3/4)³
- 6. Please write a rational number mixed operation problem and write the calculation process. The problem should meet the following conditions at the same time: 1. It must contain five operations: addition, subtraction, multiplication, division and power 2. Divisor must be a fraction 3. The base of a power operation must be a negative fraction 4. The result is equal to 2010
- 7. Mixed operation of rational numbers, The interest tax of a certain one-year fixed deposit with an interest rate of 20% (for example: deposit 100 yuan for one-year period, and the calculation formula of the income interest of the due depositor after tax is 100 * 2.25% - 100 * 2.25% * 20%). If a depositor has a one-year fixed deposit with an interest rate of 450 yuan after tax, how much is the deposit?
- 8. (1998/1-1)(1997/1-1)(1996/1-1)...(1001/1-1)(1000/1-1) Wrong, the numerator is 1, the denominator is 1998, everything else is
- 9. Application questions, quick The total weight of two baskets of vegetables is 84 kg. Take 20% of them out of basket a and put them into basket B. take 2 kg out of basket B and put them into basket a. the weight of the two baskets is exactly the same. How many kg are the total weight of the two baskets?
- 10. For a batch of parts, it takes 8 hours for Party A to produce them alone. Now, after Party A has done it for 2 hours, Party B has joined in the work, and it takes 4 hours for them to complete the task. It takes Party B to produce these parts alone___ Hours
- 11. A problem of power calculation The square of 2 + 2 + 2 + the cube of 2 + the fourth power of 2 +. + the power of 2006 =?
- 12. Calculation of power (- 2) Λ 2005 + 2 Λ 2004 (- what is the power of 2005 of 2 plus the power of 2004 of 2)
- 13. The given line AB 2cm extends AB to C, making AB to C, making BC = 2 / 1 × AB, and then extends AC to D in reverse, making ad = 2 / 1 × AC 【1】 Draw this picture 【2】 Finding the length of line segment ad
- 14. The latest edition of 2012 textbook, seventh grade volume I mathematics evaluation manual, Chapter II rational number section and thinking, p38 [content and method], the first question of knowledge and structure box filling, the first session P40 [inquiry and thinking] the sixth question of operation calculation and research, the second session p42 inquiry and thinking, the sixth question of binary
- 15. thirty-four Some of them won't be in a hurry before 8 o'clock
- 16. If the purchase price of a commodity is 3000 and the price is 4500, how much discount can the store sell at a discount of no less than 5% of the profit? If the sales of the commodity is not good, the store will sell it at a discount of no more than 5% of the profit. How much discount can the store sell it at a discount of no more than 5% of the profit?
- 17. How to solve the second problem on page 190 of the seventh grade mathematics volume I of Beijing Normal University Edition
- 18. There must be a problem with the plan, and there must be others
- 19. The first problem to be solved is the answer to the problem on page 176 of mathematics volume 1 of Grade 7 in Beijing Normal University
- 20. 2011 / 1-2010 / 1 + 2010 / 1-2009 / 1 + 2009 / 1-2008 / 1 + +2 / 1-1