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 11
1. stats

Say you perform an experiment in which you flip a coin 20 times. You are looking for statistically significant outcomes (outcomes that have a probability of occurring that is less than your alpha level). You choose an alpha level of 0.01. 1.) You decide to

asked by aw on August 9, 2010
2. Physical Science

Find a hydroxide-ion concentration in an aqueous solution having a pH of 2. Express your answer using one significant figures. I thought the answer was 1*10^-2, but I have no clue what I am doing wrong.

asked by Hannah on March 15, 2017
3. :(

I wrote a 1 paragraph answer for one of my short answer questions and when I put it into grammarly, it says that there is significant plagiarism!! BUt I didnt plagiarize!! Now I am scared to turn it in. HELP

asked by HElp on November 21, 2017
4. MATHS

Let N be the number that consists of 61 consecutive 3's. Let M be the number that consists of 62 consecutive 6's. What is the digit sum of N×M? Details and assumptions The digit sum of a number is the sum of all its digits. E.g. the digit sum of N is

asked by HELP!!! on May 21, 2013
5. Geometry

Luis has a simple calculator that has buttons for the digits 0 through 9, each of the 4 basic operations (+, - ,*,/ ), and an '=' button. Luis pushes a digit followed by the '+' sign, followed by another digit, followed by the '-' sign, followed by another

asked by John on March 1, 2013
6. Geometry

Luis has a simple calculator that has buttons for the digits 0 through 9, each of the 4 basic operations (+, - ,*,/ ), and an '=' button. Luis pushes a digit followed by the '+' sign, followed by another digit, followed by the '-' sign, followed by another

asked by John on February 28, 2013
7. math

a number has 4 digits. no digits in the number are repeated. the digit in the tens place is three times the digit in the thousands place. the number is odd. the sum of the digits in the number is 27. what is the number? I started with the 10s and 1000s

asked by ciera on March 5, 2007
8. math

I am adecimal number less than 1. the digit in my hundreths place is the sum of the digits in my thousandths place. The digit in my tenths place is 1 greater than the digit in my thousandths place. Which 3 numbers could I be?

asked by janrix on July 11, 2012
9. math

A two digit number is such that two times the tens digit is three less than thrice the units digit and four times the number is 99 greater than the number obtained by reversing the digits. Find the number.

asked by lekan on March 12, 2012
10. Physics

I have these two equations that I'm supposed to set equal to each other and find the answer for h which is height for this problem. But I don't think I'm solving it correctly. 0 - (h/5) = -1.1(v0) - (1/2)(-9.8)(1.1)^2 (v0)^2 = 2(-9.8)(h/5 - h) My final

asked by Kai on July 14, 2011
11. Algebra

A certain number is three times the sum of its digits,if 45 is added to the digit it is reverse. Find the digit. Let the two digit number be xy(10x and y) xy=3(10x+y) 3(10x+y)+45=10y+x how to solve this sum in addition and subtraction method i don't know

asked by Nathya on November 14, 2015
12. Math

How many 3-digit numbers can be formed sing the digits 0,1, 2, 3, 4, 5, 6, if repetitions are not allowed? however 180 can't be the answer i checked? any one know how to solve this one

asked by jacqueline on September 10, 2015
13. Math

What is the greatest 2 digit multiple of 10? 10 calaulate the unit rate what dose this mean ? multiply your 10's until your answer has 3 digits, the previous one is it.

asked by Mike on November 15, 2006
14. Science

Really confused on this question. A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of 2.16 microns in 5.0 seconds. The biologist wished to compare the speed of the bacteria with other animals, but the speeds of

asked by Gianna on September 27, 2013
15. math homework

The whole number are written across a piece of paper in order. There is room for 100 digits on each line and there are no spaces between each digit. What are the last 5 digits on the second line? 0123456789101112.......

asked by Bob on October 25, 2012
16. Math

Tens and hundred digits are equAland ones and thousands have a sum equal to one of the middle digits the entire digit sum is 21 what year was it made in

asked by G on November 13, 2012
17. Math

7 digit number no repetition of numbers digit 5 in thousands place, greatest digit in the millions place, digit in the hundred thousands place is twice the digit in the hundreds place, digit in the hundreds place is twice the digit in the ones place, digit

asked by Julia on August 20, 2015
18. Math

I am thinking of an odd two digit number.The sum of its digits is eight.The difference of its digits is six. It is greater than ten and less than twenty. What is my number?

asked by Rosa on August 13, 2012
19. Calculus Bonus

Form two four-digit numbers from the digits 2, 3, 4, 5, 6, 7, 8, and 9, using each digit exactly once, so that the absolute value of the difference of the two numbers is as small as possible. I don't know where to start, any help would be greatly

asked by Matt on October 27, 2007
20. statistics in health care

For example, you may be interested in learning whether there is a significant difference in birth weight for children born to mothers who take prenatal vitamins compared to children whose mothers take none. If you have collected ratio level, birth weight

asked by Jean on August 7, 2008
21. math

Prove that , if the difference between a three digit number in the form of a0b that is digit at ten's place is 0 and the sum of it's digits is divided by 99, we always get the number equal to a?

asked by TUHITUHI on August 28, 2012
22. MATH

HOW MANY SEVEN-DIGIT NUMBERS LESS THAN 1,048,000 CAN BE MADE USING THE DIGITS 0,1,4,6,7,8,AND 9? THINK: MAKE A LIST OF POSSIBLE WAYS TO REPRESENT YOUR SEVEN-DIGIT NUMBERS

asked by lanz on November 28, 2012
23. Math - PreCalc (12th Grade)

How many 4-digit numbers are possible if the hundreds digit is 8 and if repetition of digits is allowed? A) 100 B) 1,000 C) 9,000 D) 900 E) 1,800

asked by Shawna on March 21, 2014
24. Calculus Bonus

Form two four-digit numbers from the digits 2, 3, 4, 5, 6, 7, 8, and 9, using each digit exactly once, so that the absolute value of the difference of the two numbers is as small as possible. Confused need to double check with you all.

asked by Matt on October 25, 2007
25. Math

How many seven digit numbers less than 1.048,000 can be made using the digits, 0,1,4,6,7,8,9? Make a list of possible ways to represent your seven digit numbers

asked by shaneea on September 1, 2010
26. Math

How many seven-digit numbers less than 1,048,000 can be made using the digits 0,1,4,6,7,8, and 9? Make a list of possible ways to represent your seven-digit numbers.

asked by Ana on September 1, 2010
27. algebra

1. If the units digit of a two digit number is six more than the tens digit and the number is eight more than twice the sum of the digits, what is the number?

asked by Demdam on December 12, 2015
28. algebra/math

If the unit’s digit of a two-digit number is 6 more than the ten’s digit and the number is 8 more than twice the sum of the digits, what is the number?

asked by wildirisdetective on January 7, 2010
29. Math

It is a 5 digit no. ,palindrome,divisible by 4,10 digit is cube root of 1 digit,product of 100 digit and 1 digit is 54 ,sum of hundred and ones digit is 15.what is the number?

asked by Pooja on October 25, 2009
30. Chemistry

A chemist must prepare 500 ml of 9.00uM aqueous mercury(II) iodide working solution. He'll do this by pouring out some 81.0 umol/L aqueous mercury(II) iodide stock solution into a graduated cylinder and diluting it with distilled water. Calculate the

asked by Mia on December 20, 2018
31. chemisty

Calculate the moles of Cu in 8.4×1021 atoms of Cu. Express your answer using two significant figures.

asked by rolando on October 18, 2016
32. chemistry

Calculate the number of Li atoms in 3.0 moles of Li. Express your answer using two significant figures.

asked by rolando on October 18, 2016
33. physics

How much heat (in kJ) will it take to bring 56 kg of ice at -8°C to dry steam? Answer to 3 significant figures

asked by Anonymous on November 30, 2014
34. chemistry

I'm adding these three atomic weights (40.1+12.0+48.0) together, and I got 100.1 How can I round my answer to three significant figures? thank you!

asked by ally on March 21, 2015
35. chemi

Calculate the moles of Cu in 8.4×1021 atoms of Cu. Express your answer using two significant figures.

asked by rolando on October 18, 2016

For each of the three-digit numbers with no digits zero, the difference between the number itself and the product of its digits is calculated. The largest such difference is A. 110 B. 270 C. 902 D. 910 E. 927

asked by Jim on November 26, 2016
37. math

i am a 6 digit number.All of the digits in the ones period are the same. All of the digits in the thousands period are the same. The sum of my digits is 33. Whats my number

asked by Anonymous on September 3, 2013
38. chemistry

An experiment was conducted in which many pieces of data were collected. Considering all of the data, the limiting number of significant figures in the experiment was 3 significant figures. One of the values needed in these calculations was the barometric

asked by Jas on September 9, 2015
39. Math

oel 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 Allison Carson on February 9, 2016
40. math

3 digit number, divisible buy 5, odd number, product of the digits is 15, sum of digits is less than 10 and less than 12by12

asked by mbali on January 17, 2016
41. Math

The number 57733conteins two set of digits in which one digit is ten times as great as the other what are the values of the digits in each set

asked by Anonymous on September 23, 2013
42. math

A 999-digit number starts with 9. Every 2 consecutive digits is divisible by 17 or 23. There are 2 possibilities for the last 3 digits. What is the sum of these 2 possibilities?

asked by jack on June 18, 2013
43. math

i have three digits. the ones dijit and the ten's dijits are the same. the ten's digit is 3 less thantheb hundreds digit. the hundreds digit is 6. what am i ?

asked by vianey on September 27, 2011
44. MATH

my tenths digit is 3 less than my hundredths digit. The difference between my tenths and hundredths digit is 5. The sum of my digits is 10. What number am I?

asked by JAYDEN on January 15, 2013
45. maths

I am a number less than 100 .my unit digit is 4.the sum of my digits is an odd number. My tens digit is a multiple of 3. Who am I???

asked by hffg on June 5, 2016
46. Exploring mathematics elementary algebra

the units of a two-digit number exceeds thrice the tens digit by 1. the sum of the digits is 9. find the number.

asked by Joe Mhar Plaza on January 6, 2011
47. Math

Find all two-digit numbers such that reversing the digits results in another two-digit number that is 75% larger than the original number.

asked by Najib on September 28, 2011
48. math

How many Seven-Digit numbers less than 1,048,000 can be using the digits 0,1,4,6,7,8 and 9 ? Think: Make A List Of Possible Ways to Represent Your Seven-Digit Numbers.

asked by Tenecia on September 2, 2010
49. Math

I'm a number grater than 99 and less than 1,000. Two of my digits that aren't next to each other are the same. My tens digit could not be greater and it is. 1 more than my hundreds digit. What number am I?

asked by Anonymous on September 13, 2012
50. math

A number is between 150 and 200. A sum of the digits is 12. If you subtract the ones digit from the tens digit, the difference is 5. What is the number?

asked by Rose*** on September 15, 2010
51. algebra

a two digit number is four times the sum of its digits and twice the product of the digit. find the number using elimination method

asked by abhishek on June 12, 2011
52. Chemistry (urgent)

The gold foil Rutherford used in his scattering experiment had a thickness of approximately 4×10^−3 mm. If a single gold atom has a diameter of 2.9 x10^-8cm , how many atoms thick was Rutherford's foil? Express your answer using one significant figure.

asked by Bella on September 13, 2011

Show that one and only one out of n,n+4,n+8,n+12,n+16 is divisible by 5,where n is any positive integer. A two digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 or by multiplying the differences of the digits

asked by Abhishek kumar sahi on August 4, 2011
54. Physics

I'm confused about significant digits in multi-step problems. If I have something like (7.004 +0.2230)/(15.1-0.033+12.07) do I first do the addition and round to 4 sig figs and then do the denominator and round to 2 sig figs and finally divide? Or do I

asked by Katie on February 9, 2009
55. chem

What is the maximum mass of S8 in grams that can be produced by combining 87.1 g of each reagent? Do not include units in your answer. Answer to three significant figures. 8SO2 + 16H2S → 3S8 + 16H2O

asked by kate on August 1, 2014
56. Socials--no sites.

What happened on April 1st, 1999? Why is this significant? On April 1st 1999, the NorthWest Territories were split in two. This was so significant because it's what created Nunavut and the Western Territory. What does this area have for resources? For

asked by Anonymous on April 25, 2011
57. physics

A hockey puck moving at 37m/s slams through a wall of snow 31cm thick. It emerges moving at 15m/s . Part A Assuming constant acceleration, find the time the puck spends in the snow. Express your answer to two significant figures and include the appropriate

asked by Anonymous on January 25, 2015
58. Physics

I must show my work for full credit. I need help on this question. I don't need answers, but could you help me figure it out. Thanks A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of 2.16 microns in 5.0

asked by Mary on September 26, 2013
59. math

suppose you find the least of four 3-digit numbers by comparing the digits in the hundreds place. should you automatically examine the tens digits to find the next greatest number? explain and give an example.

asked by mythreyee on August 30, 2012
60. Math mystery number

This number has 7 digits The digit in the ten thousands place is 9 The digit in the hundreds place is 3 times greater than the digit in the ones place The digit in the millions place is the difference between the tens place and the thousands place The

asked by Creative kid on October 5, 2016
61. math

i posted this one a ways down, i apologize for double posting, but thought this might be a better way to ask. question:if you write the numbers from 1-999 on a piece of paper, (1234567891011121314151617181920...998999) what will the 2006th digit from the

asked by courtney on October 16, 2008
62. math

i am a digit greater than 50000 but less than 90000,my digits add up to 17, my first 2 digits are multiple of 10 and the last 3 are multiple of 100

asked by gigi on August 30, 2015
63. Math

I am thinking of a counting number that is a multiple of 5, but not of 2 or of 3. It has either 2 digits or 3 digits, and no digit is greater than 5. How many numbers could I be thinking of?

asked by PT on January 22, 2019
64. maths

A number of two digits is increased by 9. when the digits are reversed,the sum of the digit is 5. find the number. help pls

asked by miracle on October 30, 2014
65. math

In this subtraction, the boxes contain the digits 3, 4, 6, and 9 in some order and the circles contain the digits 4, 5, 8, and 9 in some order. What four-digit number is represented

asked by Jodi on January 9, 2018
66. Math Algebra

A 2 digit number is increased by 36 when the digits are reversed. The sum of the digits is 10. Find the original number.

asked by Anonymous on September 2, 2016
67. Algebra

Guess the 4-digit combination. An X stands for a correct digit in its correct place in the combination and an O stands for a correct digit out of its corect order. 8256 OX Two of the four digits 8,2,5,6 appear in the final combination(one in the position

asked by Matt on April 9, 2011
68. Chemistry

A compressed air tank carried by scuba divers has a volume of 9.5 L and a pressure of 140 atm at 20∘C. If the gas was instead in a cylinder with a floating, massless, frictionless piston, what would the volume of the gas be (in liters) at STP? Express

asked by Jessica on November 5, 2016
69. College Chem

A 1000 g sample of metal with a specific heat of 0.50 J/goC is heated to 100.0oC and then placed in a 50.0 g sample of water at 20.0oC. (Hint: Specific heat of water at 20.0oC is 4.182 J/goC). What is the final temperature of the metal and the water? Write

asked by nia on February 17, 2017
70. basic algebra

the tens digit of a certain number is 4 more than the units digit. the sum of the squares of the two digits is 26. find the number.

asked by kristina on February 8, 2016
71. Math

If a positive two-digit integer is divided by the sum of its digits, the quotient is 2 with a remainder of 2. What is the two-digit integer?

asked by Clary on January 8, 2017
72. Math

If a three digit number id formed from the digits 1, 2, 3, 4, 5, 6, and 7 with no repetitions, tell how many of this three digit numbers will have a number value between 100 and 500.

asked by Len on May 3, 2017
73. Algebra

If a positive two-digit integer is divided by the sum of its digits, the quotient is 2 with a remainder of 2. What is the two-digit integer?

asked by Isabelle on January 8, 2017
74. math

The tenths digit of ds decimal is the smallest prime n.The hundredths digits is twice the tenths digit is the GCF 18 and 27.

asked by josh on September 22, 2015
75. physics

A boxcar of mass 3.21 x 10^4 kg is rolling south at 5.16 m/s when it collides and couples with another boxcar of mass 5.18 x 10^4 kg that is rolling north at 2.38 m/s. What is the velocity of the coupled boxcars after collision? Take north as positive and

asked by lizbeth on February 23, 2016

Regression Analysis: Avg. Tot. Score versus %Takers, T/S Ratio Model Summary S R-sq R-sq(adj) R-sq(pred) 34.2385 79.91% 79.06% 76.83% Coefficients Term Coef SE Coef T-Value P-Value VIF Constant 1118.5 39.5 28.34 0.000 %Takers -2.547 0.187 -13.62 0.000 1.05

asked by SARAH on April 19, 2016
77. physics

Two separate seismograph stations receive indication of an earthquake in the form of a wave traveling to them in a straight line from the epicenter and shaking the ground at their locations. Station B is 60 due east of station A. The epicenter is located

asked by sammy on September 29, 2012
78. maths

can you replace the stars with figures **** x 3 ______ ***** the whole calculation uses each of the digits 0-9 once and once only the 4 figure number contains three consecutive numbers which are not in order. the third digit is the sum of 2 of the

asked by john on September 21, 2008
79. physics

When it is 10:00, the hour hand on an analog clock is 300 degrees ahead of the minute hand. How many minutes elapse (to three significant digits) before the minute hand next points in the same direction as the hour hand?

asked by Emily on November 1, 2009
80. Math

#1) which digit is 10 times the value in the underline digit in 36,119,432 (#that is underline is number 1 between the 1 and 9 ) I think the answer is one hundred thousand #2) which digit is 1/1000 of the value in the underline digit in 19,832,456 (#

asked by Jessica on May 20, 2016
81. Chemistry

A gas can holds 1.5 of gasoline, what is this quantity in cubic centimeters? answer using two significant figures,

asked by Hanna on September 24, 2012
82. engineering

represent each of the following to three significant figures and express each answer in SI units using an appropriate prefix: a)1568(10^5)mm b)0.005 63 mg

asked by ashley on September 3, 2008
83. Science

A student measures the volume of a liquid and finds it to be 40 mL. How many significant figures are in the measurement? A.1 B.2 C.3 D.4 Is the answer B?

asked by Gwen on September 2, 2014
84. Science, Biology

Can you teach me how should I answer these questions please.. Why the events are significant? First mammals: First primates: First modern humans:

asked by Emma on November 17, 2016
85. STATISTICS

If my p-value = .322 and my significant level is .05 , then; I cannot make a decision until my sample size is given. is the correct answer?

asked by John on June 10, 2010
86. crt205

When you are building an argument for an issue that is significant to you, do you think it is more important to be valid or sound? Explain your answer.

asked by james on December 1, 2009
87. Chemistry

Dividing 0.32g of sulfur by its density of 2.07g/cm^3 results in an answer with three significant figures? Am I right?

asked by Robert on September 2, 2015
88. Math

Use Newton's method to find a value of x that satisfies: e^x- (x^2/2) = 0 Use the starting value x0=0. Display answer in 4 significant figures

asked by Michael on November 15, 2012
89. chemistry

How many moles of protons are present in 7.54 grams of Rubidium? Report your answer to 3 significant figures.

asked by kyle on January 17, 2014
90. chemistry

asked by Anonymous on December 8, 2011
91. Science- Significant Figures

You calculate the area of a 150m x 100.0 m room. How many significant figures should your answer include? a. 1 b. 2 c. 3 d. 4 2?

asked by Anonymous on October 1, 2013
92. maths

the difference b/w a 3 digit number and the number formed by reversing its digits is 396,the difference of hundreds and the units digit,is one less than the sum of the units and tens digit .find the number

asked by anu on July 1, 2013
93. physics

A boxcar of mass 3.21 x 10^4 kg is rolling south at 5.16 m/s when it collides and couples with another boxcar of mass 5.18 x 10^4 kg that is rolling north at 2.38 m/s. What is the velocity of the coupled boxcars after collision? Take north as positive and

asked by lizbeth on February 23, 2016

The sum of my ones digit and tens digit is 10. My tens digit is les than my ones digit and both my digits are prime. i am a prime number. what number am i?

asked by damien on November 10, 2010
95. Math

A number magician tells you: : Pick any positive integer and multiply it by 18. Delete one of the non-zero digits of the product. Tell me the sum of the remaining digits of the product and I will tell you what digit you deleted." Explain this trick.

asked by Kara on October 4, 2009
96. Cost accounting

Cost behavior and classification: Factory supervision, Aluminum tubing, Rims,Emblem, Gearbox, Straight-line depreciation on paint machine,Fenders, Inventory clerk’s salary, Inspector’s salary, Handlebars, Metal worker’s wages, Roller chain, Spokes

asked by Danny on September 20, 2009
97. calculus

assume the half-life of the substance is 31 days and the initial amount is 183.9 grams. (a) Fill in the right hand side of the following equation which expresses the amount A of the substance as a function of time t (the coefficient of t in the exponent

asked by trace on September 16, 2010
98. discrete math

Q: Count the number of passwords with following constraints. Assuming digits = {0, 1, …..9}, letters = {a, b, ….. y, z} (a) 5 characters which are digits or letters. (b) 4 characters which are digits or letters, with at least 1 digit. (c) 4 characters

asked by akash on May 1, 2017
99. discrete math

Q: Count the number of passwords with following constraints. Assuming digits = {0, 1, …..9}, letters = {a, b, ….. y, z} (a) 5 characters which are digits or letters. (b) 4 characters which are digits or letters, with at least 1 digit. (c) 4 characters

asked by akash on April 30, 2017
100. math

1. First of all, pick the number of times a week that you eat chocolate. This number must be more than one but less than ten. 2. Multiply this number by 2 (just to be bold). 3. Add 5 (for Sunday). 4. Multiply it by 50. 5. Add 1750. 6. Add the last two

asked by opg on May 28, 2012