# 1.3 /73.814 In significant digit notation, divid, and the answer to two significant digits. I will be happy to critique your work

71,152 questions, page 15
1. ## Maths

A number consists of two digits.THe digit in tens place is twice that in units place.if 18 is subtracted from the number. The digits are reversed.find the number.

asked by Sara on December 4, 2016
2. ## smiley

What number can you subtract from 3,200 so that their differences is a 4 digit number with the digits in the thousands place, The digits in the hundreds place and zero in the tens and ones place

asked by Anonymous on August 25, 2015
3. ## Math110

how many 6 - slots codes can be made up using 2 letters followed by 2 digits followed by 2 letters where All of the following conditions must be met: a. the allowable letters are A through G b. the allowable digits are 2 through 7 c. no digit can be

asked by Demon on April 1, 2013
4. ## maths.

1) the 1st digit of the square of the second digit 2) the sum of the 2nd and the 3rd digit is 4 3) if the 4th digit is equal to 2nd digit plus 1 4) if the 3rd and the 5th digit are 15 5) the sum of all the digit is 30 i.e when you add all your workings it

asked by POPPY on April 9, 2019
5. ## Physics.

Calculate the tension in a horizontal string that whirls a 1.9-kg toy in a circle of radius 2.3m when it moves at 2.8m/s on an icy surface. Express your answer to two significant figures and include the appropriate units

asked by Cassie on March 19, 2014
6. ## chemistry

The reaction, cyclopropane propene (isomerization), was observed to have rate constants k = 0.000213 s-1 at 477 °C and k = 0.0328 s-1 at 577 °C. What is the value of Ea expressed in kJ mol-1? Round your answer to 3 significant figures.

asked by bobjahng2 on November 23, 2010
7. ## 3rd grade math HELP ASAP

When I am rounded to the nearest hundred I am 400. The digit in my tens is 4 more than the digit in my hundreds place. The digits in my hundreds place and ones place are the same. What number am I?

asked by Niecee on October 24, 2012
8. ## Math

The difference between a number and the number that formed by reversing the digits is 36.if the digit at the tens place is twice the digit at the unit's place.find the number

asked by Anonymous on November 25, 2016
9. ## Math

How many digits are there in the number 30? I believe there are 2 - But is zero a digit?

asked by Jennyv on July 30, 2008
10. ## maths

how many 3-digit numbers have exactly 2 digits that are the same?

asked by tori on October 8, 2011
11. ## Math

I have 3 digits. My middle digit is 4, the first is 8 and the last 2. Who am I?

asked by Noghto on January 15, 2013
12. ## math

I am a 3 digit #. All 3 digits are the same . I could not be any greater . What # am I ?

asked by Ridgecrest on October 26, 2011
13. ## Probability

The no. Of 5 digit no.s Such that sum of their digits is even is=

asked by Edward on February 8, 2016
14. ## math

which digits are always the same in a 4 digit palindrome?

asked by corrie on April 23, 2010
15. ## maths

N is an even 3-digit number such that the last 3 digits of N*N are N itself. What is the value of N?

asked by Anonymous on February 16, 2013
16. ## Math 117

1. how many three-letter code symbols can be formed using a set of 5 different letters in repetion is not allowed? 2. Mark can remember only the first 5 digits of his friends phone number. He also knows that the number has 7 digits and that the last digit

asked by Jennifer on July 23, 2009
17. ## math

In how many positive four-digit integers that are not multiples of 1111 do the digits form an arithmetic sequence? (The digits must form an arithmetic sequence, in order. For example, the number 5137 does not count.)

asked by Lola on May 26, 2018
18. ## chemistry

The distance from Earth to the Moon is approximately 240,000 .What is this distance in meters? Express your answer using two significant figures.

asked by stan on June 9, 2011
19. ## U.S History

explain the debate in McCulloch v. Maryland and the final decision in the case. why was the decision significant? plz answer i rly need help

asked by Andrew on January 26, 2012
20. ## physics

Problem 22.2 2 *10^13 electrons flow through a transistor in 1.0ms . Part A - What is the current through the transistor? Express your answer using two significant figures. in mA

asked by Paige on September 25, 2011
21. ## Physics

What is his kinetic energy when his potential energy reduces to 1000 J? Express your answer to two significant figures and include the appropriate units

asked by Anonymous on March 10, 2014
22. ## math

tenecia is thinking of a number with 8 place values. the digit in the thousands place is 5. the digits in the hundred thousands are hundreds place are both an odd number greater than 7. the digit in each other place value is one less than the digit in the

asked by rebecca on September 11, 2012
23. ## Math

Tenecia is thinking of a number with 8 place values. The digit in the thousands place is 5. The digits in the hundred thousands and hundreds place are both an odd number greater than 7. The digit in each other place value is one less than the digit in the

asked by Mia on September 1, 2010
24. ## Chemistry

A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs out 338.mg of oxalic acid H2C2O4 , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in 250.mL of distilled water. The

asked by Emma on November 7, 2018
25. ## Physics

A plane traveling at 200.0 km/h attempts to land on a 250 m runway. The plane’s engines and brakes accelerate uniformly at –7.0 m/s2. Will the plane be able to land safely? Show all your work. Include any equations used, including the given and the

asked by Vivian on March 5, 2015
26. ## Math grd12

How many ten-digit telephone numbers are possible if the first three digits must be different? The answer is 72,000,000,000.... I need the method to get that:)

asked by Celina on November 21, 2010
27. ## Statistics

Hi, Could anyone help me please, because I'm not sure with my answer, Thank you so much for your help and value time. Blood samples from 10 persons were sent to each of two labs for cholesterol determination. The measurements are recorded below: Table 1.

asked by Jonhny on July 21, 2014
28. ## statistics

Hi, Could anyone help me please, because I'm not sure with my answer, Thank you so much for your help and value time. Blood samples from 10 persons were sent to each of two labs for cholesterol determination. The measurements are recorded below: Table 1.

asked by Jonhny on July 21, 2014
29. ## math

The student in Question 5 from Module 18 decides to conduct the same study using a within-participants design in order to control for differences in cognitive ability. He selects a random sample of participants and has them study different material of

asked by kim on June 29, 2013
30. ## math

please i need help with this...were studying probability...possible outcomes...im having trouble coming up with the right answer... The product code used by Pitz Toyz consists of a letter, followed by a digit from 1 to 9, followed by another letter, such

asked by logan on October 17, 2006
31. ## MATH PROBLEM

-One revolution of the Sun by the Earth requires 365 days, 5 hours, 48 minutes and 49.7 seconds. the 5 hours, 48 minutes and 49.7 second is approximated to 1/4 of a day. Every 4th year, one full day is added( leap year). How much of an error in minutes and

asked by Kim on January 16, 2013
32. ## algebra

The value of a certain two-digit number is eight times he sum of its digits. if the digits of the number are reversed the result is 45 less than the original number. find the original number. **please show both equations and work... thanks =)

asked by Bri on February 28, 2011
33. ## math

Consider all three-digit numbers that are greater than the sum of the squares of their digits by exactly 543. What are the last three digits of the sum of these numbers?

asked by shanmukh on August 16, 2013
34. ## Algebra

Consider all three-digit numbers that are greater than the sum of the squares of their digits by exactly 543. What are the last three digits of the sum of these numbers?

asked by John on March 12, 2013
35. ## Mathematics

The sum of the digits of a two digit number is 6.If 18 is subtracted from the number, the digits in the number are interchanged . Find the number.

asked by Prabhash on October 15, 2016
36. ## Algebra

A two digit number is three less than seven times the sum of its digits. if the digits are reversed, the new number is 18 less than the original number. what is the new number?

asked by Ashley Kate on January 9, 2014
37. ## Algebra

A two digit number is three less than seven times the sum of its digits. if the digits are reversed, the new number is 18 less than the original number. what is the new number?

asked by Ashley Kate on January 9, 2014
38. ## math

Consider all three-digit numbers that are greater than the sum of the squares of their digits by exactly 543. What are the last three digits of the sum of these numbers?

asked by Jacobb on March 11, 2013
39. ## Physics

In Cambridge, England, a seconds pendulum is 0.9942 m long. What is the free-fall acceleration in Cambridge? (Use 4 significant figures in your answer.)

asked by Anonymous on January 27, 2014
40. ## CHEMISTRY

The grams of protein in 1 cup of soup that has 110 Cal{\rm Cal} with 7 g{\rm g} of fat and 9 g{\rm g} of carbohydrate. Express your answer using one significant figure.

asked by LISA on February 1, 2014
41. ## physics

1.) If the penny is at a radius of 6.00 cm spinning at a speed of 3.50 rad/sec. What is the centripetal acceleration of the penny in m/s2? Enter your answer to three significant figures.

asked by Paige on October 8, 2018
42. ## World History- (Ms. Sue)

What is the significance of strike? I am unsure of the answer to this question, but I think it would be... strike is significant because stopped workers to demand better working conditions. Am I correct?

asked by Victoria on February 19, 2013

In an addition problem the answer should have the same number of significant figures as the measurement with the mot decimal places. True or False? I say True.

asked by kathy on August 21, 2012
44. ## Chemistry

Calculate the energy difference (E) for the transition from n = 1 to n = 6 energy levels of hydrogen per 1 mol of H atoms. (Report your answer to at least 3 significant figures.)

asked by Megan on November 1, 2010
45. ## Math

I am a number with 8 tens the digit in my ones place is 4 more than the digit in my hundreds place the sum of my digits is 16 what number am i

asked by Mike on December 1, 2015
46. ## math

Using each of the 7 digits 1, 2, 3, 4, 5, 6, 7 only once, what is the difference between the smallest 4-digit number that can be made and the largest 3-digit number that can be made?

asked by nisrin on January 5, 2014
47. ## aps rk puram .math

Q=if a three 3 digit units digit tense digit hundreds digit are in the ratio 1:2:3.if the difference of original number and the number obtained by reversing the digit is 594.find the no.

asked by mona on September 15, 2016
48. ## maths

In a tree digit number, the tens digit is thrice the units and the hundred digit its time the unit digit .also the sum of its digit is16 .find the number.

asked by nishant on August 10, 2014
49. ## math,correction

are these correct now i hope? Problem #1 simplify (m^2)/(8) divided by (m^5)/(16) My answer: (2)/(m^4) Problem #2 multiply (3x-30)/(x^2-4x) times (8x)/(10-x) My answer: (-6)/(x) No. 2/m^3 (3x-30)/(x^2-4x)* (8x)/(10-x) 3*(x-10)*8x /(x-10)(-1)(x)(x-4) x's

asked by jasmine20 on April 22, 2007
50. ## chemistry

follows first-order kinetics and has an activation energy of 244 kJ mol-1. At 684 K, k = 0.00000508 s-1. What is the half-life (min) for this reaction at 427 °C ? Round your answer to 3 significant figures. I really don't know what to do

asked by bobjahng2 on November 19, 2010
51. ## phyics

A car takes 11 s to go from v=0m/s to v = 22 m/s at constant acceleration. If you wish to find the distance traveled using the equation d=1/2at2, what value should you use for a? Please help on this i don't know what i should put i think m/s squared but i

asked by rachel on September 19, 2015
52. ## Maths

The sum of the digits of a two digit number is 13.The number obtained by interchanging the digits of the given number exceeds that number by 27.Find the number.

asked by Tej on June 11, 2016
53. ## math

Tyler used 2989 digits to number the pages of a book. How many pages does the book have? I know that pages 1-9 use 1 digit, total number is 9 Pages 10-99 use 2 digits, total number is 180 Pages 100-999 use 3 digits, 900 pages= 2700 with 25 extra pages Can

asked by emily on September 7, 2017
54. ## Math

Simplify: 3/5 x 13.65 - 2/9 x 1.307 When I work this problem I get: 7.899555556 _ Would that be: 7.89 (or) _ 7.8995 The answer depends upon the order of operations, which must be clarified with parentheses and brackets. What you calculated is [(3/5) x

asked by Rachel on February 24, 2007
55. ## Math

The number is a 2 digit number greater than 5 and 12 the number is not divisible by 2 both digits of this number are the same the sum of the digits of this number is one less than half the number of days in november

asked by Amberlea on November 22, 2016
56. ## math

suppose a license plate contains 4 digits.the probability of plate number having an even or an odd digit is the same.what is the probabilty of having a license plate with all even digits.

asked by Katherine on November 6, 2009
57. ## math

the digits of a certain number of 3 arithmetical digits are in arithmetical progression.Their sum is 15.And the number is 129 times the first digit.What is the number??? by using the formula.. please...

asked by lony on September 1, 2009

A shot-putter puts a shot (weight = 70.1 N) that leaves his hand at distance of 1.53 m above the ground. (a) Find the work done by the gravitation force when the shot has risen to a height of 2.18 m above the ground. Include the correct sign for work. (b)

asked by Mary on February 27, 2007
59. ## chemistry

Posted by lyne on Tuesday, March 25, 2008 at 11:44pm. What is the pH ( 3 significant digits) of a 0.01 M solution of sulfuric acid? Hint is that the first ionization constant is "large", and the second is finite, and the [H+] donated by the second

asked by lyne on March 26, 2008
60. ## math

How many different four-digit numbers have the same digits as 1993?

asked by Mike on January 18, 2010
61. ## Geometry

How many three digit numbers have three distinct digits?

asked by Jacob on April 5, 2013
62. ## Math

what is the least 4-digit number you can make with the digits 2, 4, 3, 1?

asked by Brianna on February 3, 2010
63. ## math

how many digits can the product of 2 2 digit numbers have

asked by Anonymous on November 16, 2011
64. ## Math

name the 2 digit multiple of 8 who digits add up to 10

asked by Kelly on June 10, 2008
65. ## math help

How many different two- digit numbers can be formed using each of the digits 3, 5, and 7 only once ?

asked by Tomas on August 13, 2013
66. ## math

i am two-digit even number between 60 and 65.my two digits add up to 10.what am i ?

asked by vianey on September 27, 2011
67. ## math

i am 6 digit number. all my digits are same and their sum is 8 more than 10. who am i?

asked by tanpreet on June 11, 2016
68. ## Probability

How many different four-digit numbers can be formed using the digits 3,2,1, and 0? 9,18,24, or 36?

asked by Anna on January 1, 2010

What is the sum of the six three-digit numbers that have the digits 2, 4, and 6?

asked by Andrew on August 30, 2013
70. ## Algebra

Consider all 2 digit numbers N such that the last 2 digits of N^2 are N itself. What is the sum of all these 2 digit numbers?

asked by John on March 26, 2013
71. ## Chemistry

If 20.00 mL of 0.2019 M HCl requires 39.63 mL of a NaOH solution for complete neutralization, what is the concentration of the NaOH solutions? How many significant figures are justified in the answer?

asked by Lilit *** on October 29, 2008
72. ## Chemistry

The density of aluminum is 2.70 g/ml. What is the mass of a cube of Al that measures 2.20 cm on each side?(remember significant figures and to include the units of g in your answer, remember that 1 ml=1 cm3)

asked by Erica on September 14, 2015
73. ## chemistry

SrH2 + 2 H2O ==> Sr(OH)2 + 2 H2 Determine the number of grams of strontium hydroxide (Sr(OH)2) produced when 10.0 g of hydrogen gas (H2) is also produced. (Your answer must have at least 3 significant figures.)

asked by ani on May 1, 2012
74. ## kv luchnow

one of two digit of a two digit number is 5 time other digit if we interchange the digit of is two digit number the resulting new number is 6 more then thrice theoriginal number find two digit original two digit number

asked by juni on September 7, 2015
75. ## Algebra 2

The sum of the digits of a two-digit number is 9. If the digits are reversed, the new number is 27 more than the original number. Find the original number. I hate silly word problems like this, please help me out.

asked by Alissa on November 13, 2010
76. ## Chemistry

The mass of a gold coin was measured three times and each measurement was made to five digits. The mass values were 23.319g, 23.341 g, and 23.296g. the average mass was reported as 23.32 g. The actual mass of the coin is 25.5631g. Why is the average mass

asked by Anonymous on October 5, 2015
77. ## Math

Joel scores in 80% of his games. His team is starting the playoffs, and if they make it to the state championship, they will have played 5 games. Joel wants to determine the probability that he scores in 4 of the 5 games. Which simulation design has an

asked by Asia on February 12, 2016
78. ## Math

Joel scores in 80% of his games. His team is starting the playoffs, and if they make it to the state championship, they will have played 5 games. Joel wants to determine the probability that he scores in 4 of the 5 games. Which simulation design has an

asked by Anonymous on February 12, 2016
79. ## math

there is two digit figure in which one digit is exactly half the other. If the position of both fonts or digits is interchanged, the resultant figure when added with the origional figure sum to 99. what is the origional figure?

asked by ramzan on April 19, 2016
80. ## statistics

Assume heights and weights are normally distributed with the given means and standard deviations from the table below. Strata Mean Standard Deviation Mean Standard Deviation Height Height Weight Weight (inches) (inches) (pounds) (pounds) U.S. Men 69.3 2.8

asked by Sara on October 20, 2014
81. ## math

read the clues to find each number. it is a 7 digit number. it has a 0. the greatest digit is in the hundered thousands place. the value of the digit 1is i,000,000. the digit 6 stands for 6,000. the value of the digit 5 is 5 ones. the digit 8 has a value

asked by Winnie on September 6, 2012
82. ## math

While adding ten two-digit numbers the digits of one of the numbers were interchanged. As a result the sum of all the ten numbers increased by a value which was four less than that number. Three times the sum of the digits of the original number is ten

asked by Suzanne on November 13, 2014
83. ## algebra

please write and equation, show your work, and find the answer: 1.a certain two-digit number has a value that is seven more than six times the sum of its digits. the tens digit is 3 more than the units digit. find the number 2.In Colorado Creek, Darrell

asked by Bri on February 16, 2011
84. ## science

Which of the following statements the aim of the person who threw darts shown the picture? A The person's aim was both precise and accurate B The person's aim was precise,but it was not accurate. C The person's aim was accurate,but it was not precise. D

asked by JACKSEPTICFAN!!!!! on September 21, 2017
85. ## math

i am a 5 digit palindromic number. My third digit is 5 more than my fifth digit , my fourth digit is 2 times greater than my first digit. The sum of my digit is 14 What number am i?

asked by amoura on September 15, 2012
86. ## stonegate math

I m a 4- digit number. My ones digit is 2. My ten digit is 4 great than my ones digit. My hundreds and thousands digit are both 3 greater than my ones digit. What number am I

asked by hakizimana saidi on September 3, 2014
87. ## mystery number

What is the three digit mystery number? It is less than 300. The tens digit is 4 more than the hundreds digit. The sum of the digit is 9. The hundreds digit is 2 less than the ones digit.

asked by camila on October 3, 2011
88. ## math

To get a year's digit product, multiply the year's digits. For example, between 1900 and 2000, the 2 years 1913 and 1931 each have a digit-product of 27. What is the largest integer n for which n of the years from 1900-2000 have the same non-zero product?

asked by George on August 4, 2015
89. ## algebra math

If 3 is raised to the 59th power, i.e. 359, what is the units digit? The units digit is the digit in the ones place. Explain the method used to find your answer.

asked by bethel on June 18, 2012
90. ## society

What are the most significant similarities between the Chinese American and Japanese American [cultural] experiences? What are the differences? • Choose from any of the following topics when considering similarities and differences: o Level of

asked by Dave on October 19, 2006
91. ## Chemistry

Given the following functions, answer the questions: Temperature (°C) Kw 0 1.1410−15 25 1.0010−14 35 2.0910−14 40. 2.9210−14 50. 5.4710−14 Is the autoionization of water exothermic or endothermic? (b) What is the pH of pure water at 35°C? (c)

asked by Margaret on February 19, 2013
92. ## singapore math

My 3rd grade son get this math problem. It states that John thinks of a 3-digit number. What is his number? Use the clues below to find John's number. Every digit is different. The sum of all thedigits is 19. The difference between the hundreds digit and

asked by lori on November 4, 2012
93. ## CHEMISTRY

Using a 0.20 M phosphate buffer with a pH of 6.5, you add 0.72 mL of 0.46 M NaOH to 58 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.) I don't even know where to begin!! I just need a set up of the

asked by Mack on March 3, 2015
94. ## physics

A watch manufacturer claims that its watches gain or lose no more than 8 s in a year. How accurate is this watch, expressed as a percentage? Express your answer using one significant figure.

asked by larry on September 4, 2015
95. ## physics

Calculate the water pressure at the bottom of the 50-m {\rm m}-high water tower shown in the photo. Express your answer to two significant figures and include the appropriate units

asked by Anonymous on April 3, 2014
96. ## physics

A crate with a mass of (111.5) kg is lifted by a crane. If the crate is accelerating upward at (2.7) m/s2, what is the tension in the cable? Give your answer in newtons (N) and with 3 significant figures.

asked by d on February 15, 2017
97. ## Help with Statistics (T-value and decision rule)

For a random sample of 12 observations, the sample mean was 407 and the standard deviation was 6. Using the .05 significant level, answer the following questions. What would the t value be? What is the decision rule? **** I think the t-value would be t =

asked by Jennifer on December 5, 2014
98. ## chem 1046

Calculate the solubility (in grams per 1.00 102 mL of solution) of magnesium hydroxide in a solution buffered at pH = 9. Enter your answer to 2 significant figures.) Ksp = 2.06e-13

asked by Anonymous on July 9, 2012
99. ## physical science

A sample of tin (Cp = 0.227 J/g•°C) is placed in a freezer. Its temperature decreases from 15.0°C to −10.0°C as it releases 543 J of energy. What is the mass of the sample? Round your answer to three significant figures.

asked by jhon on June 30, 2017
100. ## physics

A crate with a mass of (111.5) kg is lifted by a crane. If the crate is accelerating upward at (2.7) m/s2, what is the tension in the cable? Give your answer in newtons (N) and with 3 significant figures.

asked by dalia on February 13, 2017