wolfiewolffromsketch
23.07.2019 •
Mathematics
Now there is a door whose height is more than its width by 6 chi 8 cun. the distance between the [opposite] corners is 1 zhang. find the height and width of the door.note: 1 zhang = 10 chi = 100 cun. give your answers inunits of chi and cun.
Solved
Show answers
More tips
- H Health and Medicine How Did Inna Lose Weight on Dom 2?...
- H Health and Medicine Coughing: Causes, Types, and Treatment Methods...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
Answers on questions: Mathematics
- M Mathematics Find the Least Common Multiple (LCM) of the following terms: 70x37, 45y4z2...
- M Mathematics If f(x) = x^2 + 9 and g(x) = x + 3, which operation would not result in a polynomial expression? *...
- M Mathematics 34 = -6 + 5x Which property of equality do you use first?...
- M Mathematics Name 2 of the same side interior angle....
- M Mathematics Please help!!!If answered correctly I will give brainlist...
- M Mathematics What is the solution to the system of equations? 3x +y=4 2x + y = 5 (-3, 13) (-1,7) (-3, 12) (0, 4) Pls hurry will give brainiest...
- M Mathematics The height of a cable that runs between two supports on a suspension bridge can be modeled by a quadratic function () where is the horizontal distance from the first...
- M Mathematics A stock currently sells for $45 The dividend yield 36 percent and the dividend growth rate What is the amount of the dividend to be paid one yea...
- M Mathematics The cost to have tile installed varies directly with the size of the room ta room that is 100 square feet costs $1080 to install then how much will it cost to have...
- M Mathematics The scatter plot shows the average starting salaries for graduates of 8 universities along with the annual tuition costs for those universities. Average Starting Salaries...
Ответ:
Step-by-step explanation:
The factor-of-ten relationship between the different units means we can combine the numbers in decimal fashion. If 1 unit is 1 zhang, then 1 chi is 0.1 zhang and 1 cun is 0.01 zhang. Hence 6 chi 8 cun is 0.68 zhang.
Let x and y represent the width and height, respectively. In terms of zhang, we have ...
y - x = 0.68
x^2 +y^2 = 1^2
Substituting y = 0.68 +x into the second equation gives ...
x^2 + (x +0.68)^2 = 1
2x^2 +1.36x - 0.5376 = 0 . . . . . eliminate parentheses, subtract 1
Using the quadratic formula, we have ...
x = (-1.36 ±√(1.36^2 -4(2)(-0.5376)))/(2·2) = (-1.36 ±√6.1504)/4
x = 0.28 . . . . . the negative root is of no interest
y = 0.28 +0.68 = 0.96
In units of chi and cun, the dimensions are ...
height: 9 chi 6 cun
width: 2 chi 8 cun
Ответ:
Height: 9 chi 6 cun
Width: 2 chi 8 cun
Step-by-step explanation:
Now there is a door whose height is more than its width by 6 chi 8 cun. The distance between the [opposite] corners is 1 zhang. The height of the door is 9 chi 6 cun and the width of the door is 2 chi 8 cun.
1 zhang = 10 chi = 100 cun
Ответ:
another way to think about it:
2yards=1/4yd+1/4yd+1/4yd+1/4yd+1/4yd+1/4yd+1/4yd+1/4yd