# 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 5
1. ## Chemistry

Complete each calculation. Express your answer to the correct number of significant digits. a)4.02mL + 3.76mL +0.95mL b)(2.7 x 10^2m) x (4.23 x 10^2m) c)5092kg divided by 23L d) 2-6.3 + 6-7 e)(6.853 x 10^3L) + (5.40 x 10^3mL) f)(572.3g + 794.1g) divided

asked by Julie on September 11, 2014
2. ## Pre-Algebra

-My tens and units digits are consecutive integers whose product is 2/3 of my hundreds digit. -My units digit is 1/3 of my hundreds digit. -The sum of my digits id equal to the sum of the first five counting numbers. What year am I?

asked by Shelbie on April 27, 2011
3. ## math

I am thinking of a six-digit number. One of the digits (not the first!) is a zero. There is a 3 to the left of a one. There is a 7 to the right of a 9. There is a 5 to the left of a 3. If the first three digits minus the last three digits is equal to 665,

asked by Anonymous on March 5, 2019
4. ## Math

The digits of a two-digit number are reversed. When both these two-digit numbers are added, the result is 88, and when subtracted, the result is 54. The original two-digit number contains which of the following digits? 2 3 5 7

asked by William on July 27, 2010
5. ## science(HELP)

how do i discuss, analysis and infer using data from a graph? how do i determine the number of significant digits? what are the 2 driving forces of natural selection?

asked by SIMP( secret important person) on August 23, 2009
6. ## Chemistry

Thank you! I redid my questions and I got the following answers. Please let me know if they are correct! I am really unsure about the significant digits! 1. 135.32g NH3 2. 1.85g H2 3. 9.93X10^19 molecules.

asked by Sarene-to Dr. Bob222 on September 28, 2010
7. ## physics

You pick up a 3.2 kg can of paint from the ground and lift it to a height of 1.4 m . Part A How much work do you do on the can of paint? Express your answer to two significant figures and include the appropriate units. Part B You hold the can stationary

asked by ... on October 24, 2016
8. ## Math

If a positive two-digit integer is divided by the sum of its digits, the quotient is 2 with a remainder of 2. If the same two-digit integer is multiplied by the sum of its digits, the product is 112. What is the two-digit integer?

asked by Kinnari on January 9, 2011
9. ## HELP!! Chemistry

Round your answer to the correct number of significant digits and show work. 1. How many grams of NaI would be used to produce a 2.0 M solution with a volume of 10.00 L? 2. What is the molarity of a 2.50 x 102 cm3 solution containing 450.0 g of C6H12O6 ?

asked by _Unknown on September 26, 2013
10. ## Maths

in a game you have to guess what a number is through some clues the clues you are given are the hundreds digit is twice as large as the thousands digit the ones digit is the largest the sum of the digits is 14 the tens digit is two less than the ones digit

asked by Lucy on April 24, 2016
11. ## Gen Chemistry

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 equilibrium depends upon the amount of [H+] already donated by

asked by lyne on March 26, 2008
12. ## college problem solving

a certain two-digit number is 6 less than the sum of its tens digit and 7 times its units digit. if the digits are reversed the number is increase by 27. fin the original two-digit numbers

asked by luckybee on November 24, 2013
13. ## Statistics

Foofy obtained a significant Fobt from an experiment with five levels. She therefore concludes that changing every condition of the independent variable results in a significant change in the dependent variable. (a) Is she correct? Why or why not? (b) What

asked by Anonymous on September 30, 2014

15. ## geometry

Find the third side of a triangle in which a 4.00-inch side and a 6.00-inch side are known to make a 56.0-degree angle. Round your answer to three significant digits.

asked by hodna on April 11, 2010
16. ## maths I need answer

The sum of the tens and ones digits of a 2-digit number is 12. The digit in the tens place is greater than the digit in the ones place The product of the two digits is 35. Find the 2-digit number.

asked by vishal on August 27, 2013
17. ## Chemistry- is this correct?

34 meters/seconds = _____ mm/hour I know 1 m is 1000 mm and 60 seconds is 1 hour. So I got 2040000. Would the answer in scietnific notation and significant figures be 2.0 x 10^6 mm/hour?

asked by Anonymous on September 22, 2013
18. ## mathematics

what is seven-digit number if the ones digit is the sum of the millions digit and thousands digit is and the digits is the number from the largest value to the smallest place value are consecutive numbers.

asked by lauren on June 19, 2012
19. ## Physics: Static Equilibrium

Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the

20. ## Physics: Static Equilibrium

Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the

21. ## Physics

Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of θ with the wall. The right-hand cable had tension 960 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the

22. ## Physics: Static Equilibrium

Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the

23. ## Physics: Static Equilibrium

Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the

24. ## Physics: Static Equilibrium

Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of θ with the wall. The right-hand cable had tension 960 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the

25. ## Physics: Static Equilibrium

Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the

26. ## physics

A skier of mass m = 55kg glides down a slope at angle theta = 32∘, as shown in the figure below. The snow is so slippery that you can neglect friction. Find the skier's acceleration. Express your answer using two significant figures. Find the force the

asked by Anonymous on February 16, 2015
27. ## Trigonometry

Round your answer to three significant digits. Use the distances shown in the following figure to determine the depth of the submarine below the surface of the water. Assume that the line segment between the surface ships is directly above the submarine. a

asked by Karen on October 22, 2014
28. ## chemistry

How many milliliters of a 3.00 M solution of hydrochloric acid are needed to completely react with 25.0 g of zinc sulfide according to the chemical reaction shown below? ZnS(s) + 2HCl(aq) ? ZnCl2(aq) + H2S(l) (Answer to three significant digits.) _____ mL

asked by joe walker on December 28, 2011
29. ## physics

When you go out to your car one cold winter morning you discover a 0.54 cm thick layer of ice on the windshield, which has an area of 1.6 m2. If the temperature of the ice is -4.1°C, and its density is 917 kg/m3, find the heat required to melt all the

asked by Ryan on April 26, 2010
30. ## Math

Adeline wrote a four digit number. The digit in the thousands place is 3 more than the digit in the hundreds place. The digits in the hundreds place is 2 less than the digit in the tens place. The digit in the tens place is 2 less than the digit in the

asked by Aepps on December 15, 2015

i am a number greater than 40,000 and less than 60,000 my ones digit and tens digits are the same. my ten thousands digit is 1 less tha 3 times the sum of my ones digit and tens digit my thousands digit is half my hundred digit, and the sum of those two

asked by edgar on August 22, 2010
32. ## Algebra

Need help plz. Don't really get this "reversing the digits" What is this really called in math language? Prob:Find the product of 32 and 46. Now reverse the digits and find the product of 23 an 64. The products are the same. Does this happen with any pair

asked by Katti on July 7, 2010
33. ## Math

A three- digit number between 600 and 700 is one less than 30 times ths sum of the digits. If the tens digits is one less than the units digit, What is the number?

asked by Anonymous on March 7, 2016
34. ## Math

Word Problem : The number has 3 digits the tens digit is half the hundreds digit the number is odd the sum of the digits is 9

asked by Ryan on January 25, 2011
35. ## Math

A three- digit number between 600 and 700 is one less than 30 times ths sum of the digits. If the tens digits is one less than the units digit, What is the number?

asked by Charls on March 7, 2016
36. ## math

i'am a four digit numeral between 3000 and 4000.My ones digit is 2 greater than my thousands digit. the two digits are the same. If the sum of my digit is, 20, what number am i in roman numeral?

asked by andrei on November 7, 2012
37. ## algebra

For every positive 2-digit number, x, with tens digit t and units digit u , let y be the 2 digit number formed by reversing the digits of x. Which of the following expressions is equivalent to x-y? a. 9(t-u) b. 9(u-t) c. 9t-u d.0

asked by reena on February 11, 2012
38. ## Analytical Chemistry

A solution is prepared by dissolving 0.2222 (¡¾0.0002) g of KIO3 in 50.00 (¡¾0.05) mL. (i) Calculate the molar mass of KIO3 with its associated uncertainty to the correct number of significant figures. (ii) Find the molarity and its uncertainty with an

asked by Matt on February 27, 2017
39. ## math

hypothesis testing , this is the example, The company has enjoyed success, and has grown to the current staff of 26 people. There is a perception/rumor in the company that the average pay rate for males is different than the average pay rate for females.

asked by yan on April 14, 2018
40. ## history plz help

describe significant events in the scial and economic reconstruction of the south. why are these events significant

asked by help?thanks on December 19, 2014
41. ## history

Describe significant events in the social and economic reconstruction of the south. why are these events significant?

42. ## SS ANYONE HELP?

Describe significant events in the social and economic reconstruction of the South. Why are these events significant?

asked by Christina on January 31, 2015
43. ## MATH

A number has three distinct digits. The sum of the digits equals the product of the digits. How many three-digit numbers satisfy this condition?

asked by Jhon on September 3, 2016
44. ## Math

A number has three distinct digits. The sum of the digits equals the product of the digits. How many three-digit numbers satisfy this condition?

asked by Ryan on September 4, 2016
45. ## Math

I am a six digit number. Two of my digits have the values 300 and 4000. All the digits in my thousands are the same. The remaining digits are also the same and their sum is the 10.

asked by Enzo on June 19, 2012
46. ## math

your social security number is a 9 digit number. suppose that the last 4 digits are chosen randomly from the number 0-9. a. how many sequences are possible for the last 4 digits? b. what is the probability of getting 5 or 0 in the last digit. c. what is

asked by Mackenzie on February 26, 2008
47. ## balayan national highschool

The hundred thousands digits of a six-digit even number is 3 more than the thousand digit, which is twice the ones digit. Give at least four numbers that satisfy the given condition.

asked by mercy laureano on June 22, 2015
48. ## Chemistry

You measure one edge of a cube using a meter stick marked in centimeters. Unfortunately, the edge is longer than 1 m. You mark the 1-m point on the cube edge with a pen and then, using a 15-cm ruler marked in millimeters, measure the remaining distance to

asked by Sally on October 16, 2011
49. ## Chem (last question, I promise)

You measure one edge of a cube using a meter stick marked in centimeters. Unfortunately, the edge is longer than 1 m. You mark the 1-m point on the cube edge with a pen and then, using a 15-cm ruler marked in millimeters, measure the remaining distance to

asked by Miranda on October 16, 2011
50. ## Physics

Problem 21.79 The plates of a 3.2nF parallel-plate capacitor are each 0.25 m^2 in area. Part A - How far apart are the plates if there's air between them? Express your answer using two significant figures. = Part B - If the plates are separated by a Teflon

asked by Paige on September 11, 2011
51. ## Algebra

How many odd three -digit numbers can be formed if the tens digit must be 4 ?(Repetition of digits is allowed and zero cannot be the hundreds’ digit)

asked by Delila on February 1, 2018
52. ## arithmetic

How many 2-digit numbers, with tens digit less than units digit, have the sum of digits equal to 3 times the difference?

asked by vinay on July 4, 2011
53. ## math

list all the 3 digit numbers that fit these clues. the hundreds digits is less than 3. the tens digit is less than 2. the ones digit is greater than 7

asked by maya on September 22, 2015
54. ## Maths

In A Two Digit Number, The Sum Of The Digits Is 14. Twice The Tens Digit Exceeds The Units Digit By One.Find the Numbers.

asked by Jacob on December 9, 2015
55. ## math

How many different positive four-digit integers can be formed if the first digit must be 2, the last digit cannot be 0, and digits may be repeated? a) 336 b) 900 c) 1000 d) 9000 e) 10000

asked by Kyle on July 12, 2010
56. ## Chemistry

When a (1.797x10^0) g sample of CuSO4 * 5H2O (Copper II Sulfate Pentahydrate) and NaCl was heated, a total sample of (2.74x10^-1) g of water was lost. What is the mass percent of hydrate in this sample? Give your answer in scientific notation with three

asked by Emma on May 31, 2018
57. ## Math

A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3? would this be 1/7 or 1/6? i'm unsure.

asked by bubbie on May 22, 2013
58. ## chemistry help!!

For each of the following pairs, indicate which element has the larger first ionization energy Mg or Al. i put Mg. Repulsion of paired electrons in Mg is more significant than Al's higher effective nuclear charge. but got it wrong. Al. Repulsion of paired

asked by Samantha on November 20, 2012
59. ## Chem

The galvanic cell described by the cell notation has a standard emf (electromotive force) of 4.05 V. Calculate the value (kJ) for the ΔG˚ of the cell. Round your answer to 3 significant figures. Mn(s) l Mn2+(aq) ll F2(g) l F-(aq) l Pt(s) St. Red. Pot.

asked by Jess on November 14, 2011
60. ## Math

I am a six-digit number between 600,000 and 700,000. The digit in the ten thousands place is 1 more than the digits in the thousands and hundreds place. The digit in the hundreds place is 3. The sum of the digits in the ones and tens place equals the

asked by Angela on October 10, 2016
61. ## Algebra

The difference between the digits in a two-digit numeral is 3. The units' digit is twice the tens' digit. Find the nuermal.

asked by Jane on October 22, 2012
62. ## maths

The product of digits of two digit no. Is 24.if its unit's digit exceeds twice its ten's digit by 2;find the number

asked by reet on July 31, 2016
63. ## math

A three-digit code is made up of three different digits from the set (2,4,6,8). How many three-digit codes can be formed if no digit is repeated?

asked by belle on June 29, 2016
64. ## Math

It is less than 300. The ones digit is 4 times the hundreds digit. The tens digit is 5 more than the hundreds digit. The sum of the digits is 17. What is the mystery number?

asked by Gon on September 27, 2012
65. ## Math

It is less than 300. The ones digit is 4 times the hundreds digit. The tens digit is 5 more than the hundreds digit. The sum of the digits is 17. What is the mystery number?

asked by Gon on September 27, 2012
66. ## Math

i am a four digit numeral number between  3000 and 4000.My ones digit is 3 greater than my thousands digit.The two other digits are the same.If the sum of my digit is 20,what number am i?

asked by Anne on June 21, 2012
67. ## Physics

Problem 21.79 The plates of a 3.2 nF parallel-plate capacitor are each 0.25 m^2 in area. Part A - How far apart are the plates if there's air between them? Express your answer using two significant figures. Part B - If the plates are separated by a Teflon

asked by Paige on September 13, 2011
68. ## math

It is between 7 and 8 million it contains all the digits greater then 1 and less then 8 the hundred thousands digit is 3 the ten thousands digit are the same their sum is the ones digit the tens digit is greater then the hundreds digit

asked by patricia on September 13, 2013
69. ## math

The sum of the digits in a three digit number is nine.The tens digit is half the sum of the other two and the hundreds digit is half the unit digit.Find the total value of the second digit

70. ## Algebra 2

A random sample of 1000 people was chosen for a survey. 80% of them had health insurance. Find the 95% confidence interval. Round answers to 4 significant digits.

asked by Abbie on December 2, 2015
71. ## maths

Find the sum of all 3-digit positive numbers N that satisfy the condition that the digit sum of N is 3 times the digit sum of N+3. Details and assumptions The digit sum of a number is the sum of all its digits. For example, 1123 has a digit sum of

asked by rohit on March 21, 2013
72. ## math

i am a relflex angle. all the digits in my angle measure are even. all of my digits are different. all three of my digits are factors of 8. my tens digit is greater than my one digit. what is my measure?

asked by janet on April 4, 2011
73. ## Chemistry;HELP

Help me set them up and then check my answers? Round your answer to the correct number of significant digits and show work. 1. How many grams of NaI would be used to produce a 2.0 M solution with a volume of 10.00 L? 2. What is the molarity of a 2.50 x 102

asked by Unknown on August 20, 2013
74. ## Chemistry

Help me set them up and then check my answers? Round your answer to the correct number of significant digits and show work. 1. How many grams of NaI would be used to produce a 2.0 M solution with a volume of 10.00 L? 2. What is the molarity of a 2.50 x 102

asked by _Unknown on August 18, 2013
75. ## chemistry

A solution is prepared by dissolving 0.2222 (¡¾0.0002) g of KIO3 in 50.00 (¡¾0.05) mL. (i) Calculate the molar mass of KIO3 with its associated uncertainty to the correct number of significant figures. (ii) Find the molarity and its uncertainty with an

asked by Hobson on March 28, 2010
76. ## Chemistry

The voltaic cell described by the cell notation has a standard emf (electromotive force) of 0.94 V. Calculate the value (J) for the maximum electrical work that the cell can do under standard conditions. Round your answer to 3 significant figures. Pt(s) /

asked by Roger on December 3, 2010
77. ## Place Value

Choose between the numbers 0, 2, 3, 4, 5, and 6 to make the largest four digit natural number in terms of value that you can. The number 078 has two digits. The number 00045 has two digits. Choose between the same numbers to make the smallest four digit

asked by Melissa on January 19, 2011
78. ## Significant Figures

I'm having a hard time with significant figures. Any help would be appreciated. The first one is 0.0000000502. I put that it has three significant figures. Is this correct? The other numbers I haven't a clue about are: 5.52 299,792,458 206,265 I get the

asked by Carl on January 16, 2013
79. ## Mathematics in science

Can you check my answers please? 1. A student measures the volume of a liquid and finds it to be 40ML. How many significant figures are in the measurement? 1. 2** 3 4 2.Calculate the area, with the appropriate number of significant figures, of a

asked by Moonlightlee on September 14, 2015
80. ## Math in Science

A student measures the volume of a liquid and finds it to be 40mL. How many significant figures are in the measurement? 1 *** 2 3 4 Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 m wide by 15.0 m

asked by Gabby on September 17, 2013
81. ## Physics

An athlete performing a long jump leaves the ground at a 27.1 ∘ angle and lands 7.73 m away. 1). What was the takeoff speed? Express your answer using three significant figures and include the appropriate units. 2).If this speed were increased by just

asked by Ashley on September 16, 2016
82. ## Ashley

An athlete performing a long jump leaves the ground at a 27.1 ∘ angle and lands 7.73 m away. 1). What was the takeoff speed? Express your answer using three significant figures and include the appropriate units. 2).If this speed were increased by just

asked by Help on September 16, 2016
83. ## Math

A locker combination has three nonzero digits, and digits cannot be repeated. If the first two digits are even, what is the probability that the third digit is even? A) 7/9 B) 1/3 C) 1/6 D) 1/7

asked by Sophia on April 28, 2019
84. ## Math: Probability

A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 9 and 8. What is the probability that the third digit is 7?

asked by Rebel #3 (Sophia) on April 29, 2019
85. ## math: probability

A locker combination has three nonzero digits, and digits cannot be repeated. If the first two digits are even, what is the probability that the third digit is even?

asked by Brooke on March 27, 2008
86. ## Math

A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3?

asked by Jess on May 3, 2011
87. ## Math: Probability

A locker combination has three nonzero digits, and digits cannot be repeated. If the first two digits are even, what is the probability that the third digit is even?

asked by Sophia on April 29, 2019
88. ## math

A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3?

asked by Anonymous on February 7, 2013
89. ## Math

I am a number less than 40,000. All my digits are multiples of 3. My first,third,and fifth digits are the same. both my thousands digits and my tens digit are six more than the others.

asked by Michael Taylor on May 9, 2013
90. ## math

A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3? is it 1/7 or 1/6?

asked by Maya on January 16, 2017
91. ## chemistry

Ammonia chemically reacts with oxygen gas to produce nitric oxide and water . What mass of ammonia is consumed by the reaction of 4.5g of oxygen gas? Round your answer to significant digits.

asked by Anonymous on September 27, 2011
92. ## Math

I am a number between 1 and 10. My tenth digit is one more than my one digit; my hundredth digit is the sum of my one and tenths digits.

asked by Andrea Vergara on June 19, 2014
93. ## Math

I am a four digit number the tens digit is greater than the ones and hundreds digit the digits have a sum of 15

asked by Dog on June 17, 2017
94. ## maths

sum of the digits of a two digit no is 9 when we interchange the digit it is found that the resulting new no is less than the original by 9 what is the two digit no

asked by priti on July 11, 2016
95. ## Chemistry

A plumber installs a pipe that has a diameter of 10 cm and a length of 2.4m, Calcualte the volume of water(in cm3) that the pipe will hold. Express your answer to the correct number of significant digits. Note: The formula for the volume of a cylinder is

asked by Jessica on September 13, 2014
96. ## math urgent

Billy chooses three dfferent non-zero digits and makes six different 3-digit numbers with no digit repeated in any number. He notices that one of the 3-digit nubers N say is the aerage of the other five. Find all possible values of N.

asked by mariana on August 5, 2018
97. ## Math

Juggling numbers from old newspapers cut out digits 0 to 9 and stick them in a creative manner make sure the digits are not too small.juggle the digits to make the numbers described below. The challenge is you can use a digit only once in a number Using

asked by Huma on October 3, 2018
98. ## Chemistry

Calculate the entropy change of the universe (in J/K) when 43.4 g of ethanol vapor is condensed in a laboratory at 20.4 oC. Report your answer in scientific notation to three significant figures. If something is condensed, does that mean the system gaines

asked by Student on January 27, 2008
99. ## statistics

15.34 In a four-digit lottery, each of the four digits is supposed to have the same probability of occurrence. The table shows the frequency of occurrence of each digit for 89 consecutive daily fourdigit drawings. Research question: At á = .01, can you

asked by Anonymous on December 5, 2010
100. ## Physics-Trajectory

A particle's trajectory is described by x =(12t3−2t2)m and y =(12t2−2t)m, where t is in s. What is the particle's speed at t=0s ? What is the particle's speed at t=5.0s ? Express your answer using two significant figures. What is the particle's

asked by Eric on September 11, 2015