1. what is

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

    asked by kme on August 31, 2005
  2. Physics

    Calculate the answer for the following question and state the answer with the correct certainty and units. Given the values of b and h, find A. b=3.2 cm, h=10.1 cm A=1/2bh The answer is 16 cm^2, which was rounded to two significant digits from 16.16

    asked by Emily on September 8, 2010
  3. Physics

    Talking about significant figures, my Physics textbook lists 5 rules for determining significant figures. 1) All nonzero digits are significant. 2) Zeros to the right of nonzero digits in a number containing a decimal point are significant. 4) Zeros to the

    asked by Autumn on August 21, 2012
  4. chemistry

    this is over significant digits. -Indicate how many significant figures are in each of the following measurements: e) 4.0 X 10-5 kg i got 1 significant digit, but i'm not sure it if it's right... (& i can't ask my teacher, the situation is complicated)

    asked by Ana on September 21, 2010
  5. Chemistry

    please check my answers for the following questions. 1) when a measurement that has six significant digits is divided by a measurement that has three significant digits, how many significant digits should the answer have? ANSWER: 2 2) How many hydrogen

    asked by anonymous on July 31, 2007
  6. Physics - bobpursely

    State the number of significant figures. 1) 809 Answer : 3 2) 0.0060 Answer : 5? 3) 0.00000095 Answer : 9? 4) 5.60 Answer : 3 5) 5.743 Answer : 4 6) 0.010 Answer : 4? Physics Help - bobpursley, Sunday, September 11, 2011 at 4:59pm 2, 3, 6 are wrong: Zeroes

    asked by Anonymous on September 11, 2011
  7. Chemistry

    When 25.302 is divided by 56.743, the answer should be reported to ____ significant digit(s). The result of the division, 25.302 / 56.743, reported to the correct number of significant digits is _______ When 56.743 is subtracted from 25.302, the result

    asked by sabrina on September 15, 2013
  8. Chem

    Another confusing significant digit problem. I added 36.6 and 2.4, and divided the result by 4.803. The book says the answer is 7.91, but I don'[t see how that could be, since the lowest number of significant digits in the problem is two (2.4). I think the

    asked by Coralie on February 15, 2009
  9. Aerodynamics

    Please if you could help with this... and explain very carefully I'll be very thankful. The dragonfly has a wing chord of 0.01 m, and can fly at 10 m/s. Assume roughly sea level viscosity ν=1.45×10−5m2/s. Determine the momentum thickness θ on the

    asked by Tony on April 16, 2014
  10. Significant figures

    How would I go and express these numbers with 3 significant figures in normal notation? a)15.08 b)1444 c)83,909 d)0.524 e)0.0254 for d and e aren't they already with 3 significant figures and also in normal notation? for a, b, and c I can't figure out what

    asked by ~christina~ on September 2, 2007
  11. Chemistry

    How you do this? can you do the first one, i'll try the second one if you can explain Perform the following operations and give the answear in standard exponential form with the correct number of significant figures 1) 37.2mL + 18.0mL + 380mL= 2) 0.57cm x

    asked by Bryan on January 11, 2007
  12. Chemistry

    We are currently studying significant digits/figures. I was asked to add 150 ml with 76.9 ml, plus 209 ml plus 0.036 ml. The book says the answer is 440, but I got 435. (the complete answer, without applying the significant digits rule is 435.936) How did

    asked by Coralie on February 15, 2009
  13. chemistry

    An electronic balance shows the number 2.705 grams ; which digits is/ are the uncertain digit and which are the significant digit?

    asked by Maria on August 26, 2012
  14. math.chem

    Give the answer to the following calculation with the correct number of significant digits. Report your answer in scientific notation. (6.17 x 10-1 + 4.9 x 10-2) x (3.95 x 10-2 + 6.454 x 10-3) i know the answer is 0.0306, but how many sigfigs should the

    asked by Jade on September 13, 2007
  15. Chemistry

    How can calculations affect the accuracy and precision of experimental results? Calculations, such as division and addition, can decrease precision in data by generating more digits that can be significant. Nonzero digits are always significant; however,

    asked by Quinn on October 12, 2018
  16. Algebra 1 (Check work)

    4. A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits. Answer: 6.25 feet * 6.25 feet = 39.0625 square feet. 6.25 has three significant digits. Rounding 39.0625 to three significant digits is 39.1

    asked by Bobby Newberry on August 27, 2017
  17. physics

    Using Newton's Law of Universal Gravitation, compare the effect of the Sun and the Moon on the tides. Constants: Mass of the Moon, M☽= 7.348E22 kg. Moon's semi-major axis, a☽= 3.844E8 m. You can find the other constants you will need on the Astronomy

    asked by Maria on November 16, 2011
  18. Science

    I'm a little confused when it comes to significant figures. Where it doesn't make sense to me is when zeros come before and after a number. For example: My book states that zeros that come before a digit are NEVER significant. Now this makes sense if you

    asked by Anonymous on December 9, 2009
  19. simple math

    If a= 9990.9 and b= 9886.1. First, convert these to scientific notation. If only three significant digits are allowed in decimal portion (mantisa) of the scientific notation and chopping and not rounding is used, what is a-b?

    asked by sara on September 14, 2013
  20. Math

    In a class of 83 students, 72 are present. What percentage of the students are absent? Provide answer up to two significant digits. a. 12 b. 13 c. 14 d. 15 What I did is I subtracted both 83 and 72 which is 11 and I put it as proportions. I put x as a

    asked by Bella on October 6, 2017
  21. math

    using digits 1-9 only once, multiply a 3 digit by a 2 digit number and get a 4 digit result 12*345=4140? looks ok to me. the answer would have to be 6789 or some order of those digits if you used the others in the question. digits 1-9 used only once, no

    asked by Trey on November 28, 2006
  22. Chemistry

    How does Significant Figures work? If i had a number: 1,007,000 is that with 4 sig figs or 7 sig figs? I checked 5 different resources and gotten conflicting answers. Help! The answer will depend on what's being measured and how it's being measured. If

    asked by Summer on September 14, 2006
  23. physics

    Written in scientific notation, with three significant digits, the number 0.01050 is_______?______ x 10?

    asked by l on July 31, 2014
  24. Physics

    A car passes the starting line traveling 20.5 mph. It accelerates constantly at 7.96 mi/hr-s. After 7.67 seconds, how far has the car travelled? Be sure to give your answer in miles with the correct number of significant digits. The answer should be in the

    asked by HI on October 2, 2016
  25. physics

    when i calculate the density from my measurement,mass=154.4, volume=175.00,and got 0.8823 g/cmexp3 as the answer,so do i have to express the answer in scientific notation or round off it? No, you do not need to express the answer in scientific notation

    asked by Katrina on September 17, 2006
  26. Math

    Solve the mathematical puzzle. Determine the digits of R from these clues. The first digit is the answer when the third digit is divided by 2. The second and third digits add to 7. The second digit minus the first digit is 1. R is a three-digit number:

    asked by Shawna Lynn on April 29, 2013
  27. MATH/CHEM PLEASE HELP!

    Give the answer to the following calculation with the correct number of significant digits. Report your answer in scientific notation. (6.17 x 10-1 + 4.9 x 10-2) x (3.95 x 10-2 + 6.454 x 10-3) i know how to solve for the answer, i just don't know the

    asked by Jade on September 13, 2007
  28. math?

    Give the answer to the following calculation with the correct number of significant digits. Report your answer in scientific notation. (6.17 x 10-1 + 4.9 x 10-2) x (3.95 x 10-2 + 6.454 x 10-3) i know how to solve for the answer, i just don't know the

    asked by des. student! on September 13, 2007
  29. Science

    Can someone please explain significant digits to me? (also known as significant figures)

    asked by Anonymous on August 14, 2011
  30. Math

    How many odd four-digit numbers, all of the digit different can be formed from the digits 0 to 7, if there must be a 4 in the number? My Answer: There are four options for the last digit (1, 3, 5, or 7). One of the other three digits only has 1 option (for

    asked by Ann on January 5, 2011
  31. Statistics

    A friend gives you the following Fs and decision made. Does the decision appear to be correct? Explain.Do NOT provide critical or table values as explanations. F(2, 63) = .10, not significant F(3, 85) = -1.70, not significant F(1, 120) = 64.32, not

    asked by Lizzy on November 3, 2016
  32. math

    I am thinking of a two-digit number in which the sum of the digits is 9 and the number is even. These clues alone do not create one answer. Add one more clue so that there is only one answer. Both digits are divisible by 2. The difference of the digits is

    asked by Christina on October 26, 2012
  33. CHEMISTRY

    Use the Nernst equation to calculate Ecell for each of the following cells. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4. (a) Mn(s) | Mn2+(0.11) M || Cr3+(0.24 M), Cr2+(0.11 M) | Pt(s) ____________ (b) Mg(s) |

    asked by sabrina: on November 30, 2012
  34. CHEMISTRY

    Use the Nernst equation and calculate Ecell for each of the following cells. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4. (a) Mn(s) | Mn2+(0.11) M || Cr3+(0.24 M), Cr2+(0.11 M) | Pt(s) ____________ (b) Mg(s) |

    asked by sabrina:help please with showing steps on November 30, 2012
  35. chemistry

    Which of the following is NOT true? A. A measurement contains significant figures and units. B. All numbers should be recorded from a digital readout. C. The uncertain digit is estimated between the last two markings. D. If an average of 4 trials is being

    asked by jared on May 10, 2007
  36. physics

    A projectile of mass 0.874 kg is shot straight up with an initial speed of 29.0 m/s. (a) How high would it go if there were no air resistance? (b) If the projectile rises to a maximum height of only 7.70 m, determine the magnitude of the average force due

    asked by Mesho on April 6, 2011
  37. physics

    round of the following digits- 3.65*105(upto are place of decimal) 0.882026(upto three significant figures) 311.299(upto four significant figures) 4.783(upto two significant figures)

    asked by yashaswi on August 26, 2016
  38. aeronautic

    A dragonfly wing airfoil is essentially a thin plate, whose upper and lower surface velocities can be closely approximated by ue(x)V∞ = (xc)−b(upper surface) (E1.22) ue(x)V∞ = (xc)+b(lower surface) (E1.23) Use the following case-sensitive typed names

    asked by JuanPro on April 15, 2014
  39. Chemistry (Check)

    Classify each of these statements as always true, sometimes true, or never true 11)sometimes true 12)Never True 11)Scientific notation is used to express large numbers in convenlent form. 12)Siginificant figures include all the digits that can be known

    asked by Bryan on January 13, 2007
  40. CHEMISTRY

    Use the Nernst equation and data from Appendix D to calculate Ecell for each of the following cells. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4. (a) Mn(s) | Mn2+(0.11) M || Cr3+(0.24 M), Cr2+(0.11 M) | Pt(s)

    asked by sabrina on November 30, 2012
  41. 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. 1.9(2.8)^2 .. then divid by 2.3 I

    asked by James on March 20, 2014
  42. Chem

    How many moles of hydrogen and oxygen are in 2 moles of water? water: h2o # of molecules = (6.022 x 10^23)(2)= 1.2044 x 10^23 # of hydrogen atoms = (1.2044 x 10^23)(2)= 2.4088 x 10^24 # of oxygen atoms = 1.2044 x 10^24 Did I do this correctly? What do I do

    asked by Lena on July 6, 2009
  43. Math

    The mystery number's tens digit is less than the ones digit. The tens digit is less than the tenths digit. The tens digit is even. Its ones digit divided by its tens digit is 5. The product of two of the digits is 6 It has two odd digits. One of its digits

    asked by Gene on September 25, 2012
  44. Programs and Services

    Children with developmental delays are those A. with significant subaverage intellectual performance. B. with significant lag behind norms in at least one developmental area. C. with significant delay in gross motor or language development. D. born at

    asked by Diana on November 24, 2018
  45. physics

    A hole in an aluminum plate has a diameter of 1.465 cm at 22.80° C. (a) What is the diameter of the hole at 199.0° C (to four significant digits)? (b) At what temperature is the diameter of the hole equal to 1.463 cm (to three significant digits)?

    asked by aok on December 10, 2010
  46. math

    I am a 2 digit number whose digits are different if you add my digits the answer is 9 the difference between the digits is 3 my units digit is half my 10 digit

    asked by juliette on October 10, 2014
  47. Chemestry

    Liquid is known to be composed of glycerol. The density of glycerol is equal to 1.26 kg/L. The volume of the liquid is measured to be 14.5 L. What is the mass of the object? Round your answer to correct number of significant digits and report it in

    asked by Will on June 26, 2017
  48. chemistry

    use exponential notation to express the number 480 in 3 significant figures and 4 significant figures

    asked by mathew on September 8, 2010
  49. Math Help Please

    Can you Please explain the answer that I received of 2469? It is the correct answer but I do not understand how to show the work. Thank you *************************************** Using the 9 digits, 1, 2, 3, 4, 5, 6,7, 8 and 9 you can arrange four

    asked by Urgent Please Please on March 9, 2012
  50. Chemistry

    Hi guys! I just learned about significant figures today, and I have a question about them. My teacher gave us a problem where all values have what I think is four significant figures (like 44.56) except the value for temperature (which is 25.5C). Are

    asked by Allie on September 9, 2015
  51. chemistry

    1. the diameter of a carbon atom is 0.000 000 000 000 154 m. what is the number expressed in the scientific notation? a) 1.54x10^12m b) 1.54x10^-12m c) 1.54x10^10 d) 1.54x10^-10 2. what is the result of multiplying 2.5x10^10 by 3.5x10^-7 a) 8.75x10^-3 b)

    asked by david on August 30, 2018
  52. chemistry

    1. the diameter of a carbon atom is 0.000 000 000 000 154 m. what is the number expressed in the scientific notation? a) 1.54x10^12m b) 1.54x10^-12m c) 1.54x10^10 d) 1.54x10^-10 2. what is the result of multiplying 2.5x10^10 by 3.5x10^-7 a) 8.75x10^-3 b)

    asked by david on August 30, 2018
  53. CHEM 1LB

    Which of the following is NOT true? A. The uncertain digit is estimated between the last two markings. B. Except for absorbance, most measurements contain significant figures and units. C. All numbers should be recorded from a digital readout. D. If an

    asked by Shawn Tabrizi on January 21, 2011
  54. chemistry(can anyone help me with this)

    Which of the following is NOT true? A. Except for absorbance, most measurements contain significant figures and units. B. All numbers should be recorded from a digital readout. C. The uncertain digit is estimated between the last two markings. D. If an

    asked by tea on January 19, 2010
  55. MATH

    What is my number if the hundreds digit is less than the tens digit and less than the ones digit and the hundreds digit is even and the tends digit divided by the hundreds digit is 5 and the product of two of the digits is 6 and it has two odd digits and

    asked by NANCY on August 28, 2014
  56. math

    Neelesh is fond of playing number games. Once when his friends were present he challenged them. He said that he has thought of a five-digit number and anyone who guesses it correctly can use his cycle for a full day. ‘To help you,’ he said, ‘I shall

    asked by gayathri on August 13, 2016
  57. Chemistry

    I have a Chemistry question which should be very simple but I do not know what significant figures are. Assuming the following numbers are measurements and using the rules for significant figures, determine the answer for the following calculation.

    asked by Pablo on January 10, 2013
  58. LSAT PREP

    A company employee generates a series of five-digit product codes in accordance with the following rules: The codes use the digits 0, 1, 2, 3, and 4, and no others. Each digit occurs exactly once in any code. The second digit has a value exactly twice that

    asked by Carolyn on January 6, 2015
  59. Math

    Received answer to the following question from Jishka. (2469) Would you please explain the steps you used to get the answer 2469. I must show work. Thank you Using the 9 digits, 1, 2, 3, 4, 5, 6,7, 8 and 9 you can arrange four different digits to form a

    asked by Urgent Help Please on March 8, 2012
  60. math

    Two friends are playing a variation of MasterMind where one friend tries to guess the three digit number that the other friend is thinking of. The rules of the game are as follows: -Digits can be repeated -Zero cannot be the first number, but zero can be

    asked by S on February 14, 2019
  61. Math

    3) Erik wants to form 4-digit integers using only the digits 1, 2, 3, and 4. He is allowed to repeat digits. What is the probability that he forms a 4-digit integer where at least one digit repeats? Express your answer as a common fraction.

    asked by Anonymous on October 1, 2016
  62. Math

    1. Is it more appropriate to use scientific notation for approximates or exact numbers? why? 2. In one plantation, there are 2700 young trees correct to 2 significant figures. In the other there are 830 full grown trees, correct to 2 significant figures.

    asked by Jason on February 21, 2012
  63. chemistry

    Suppose you are asked to find the area of a rectangle that is 2.1-cm \rm cm wide by 5.6-cm \rm cm long. Your calculator answer would be 11.76 cm 2 \rm cm^2 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not

    asked by Lindsey on August 29, 2013
  64. Physics

    i have just started physics, can someone please show me step by step how to do this: The radius of Earth is 6 370 000 m. Express this measurement in km in scientific notation with the correct number of significant digits. thank you for your help

    asked by y912f on January 28, 2009
  65. Math

    I need to show work for this but I don't know how. Erik wants to form 4-digit integers using only the digits 1, 2, 3, and 4. He is allowed to repeat digits. What is the probability that he forms a 4-digit integer where at least one digit repeats? Express

    asked by Becky on October 3, 2016
  66. Physics, still don't get it!

    The drawing shows a skateboarder moving at v = 5 m/s along a horizontal section of a track that is slanted upward by 48° above the horizontal at its end, which is h = 0.52 m above the ground. When she leaves the track, she follows the characteristic path

    asked by Mary on February 28, 2007
  67. math

    this code has five digit 1,2,3,4,5. the first digit plus the second digit is equal to the third digit the second digit twice times the first digit the second digit is half the fourth digit and the fifth digit is the sum of the first and fourth digits. what

    asked by shruthi on July 5, 2014
  68. PHYSICS

    PLEASE HELP WITH PART E AND F THANKS!! Find the direction and magnitude of the following vectors. A⃗ =( 22 m )x^+( -15 m )y^ Express your answer in degrees using three significant figures. θA = THE ANSWER IS-34 Part B Express your answer in meters using

    asked by sintia on February 13, 2017
  69. math

    perform this operation to the correct significant figure. 2.0cm × 0.01m in the correct significant figure. should the answer be in two or one significant figures

    asked by jay on January 19, 2016
  70. Math

    Need Answer to the Following Please: Using the 9 digits, 1, 2, 3, 4, 5, 6,7, 8 and 9 you can arrange four different digits to form a four-digit number that is NOT divisible by 7. The digits 1238 cannot be arranged to create a four-digit number that is

    asked by Need Help Please on March 7, 2012
  71. algebra

    the sum of the digits of a three digit number is 14. the tens digits exceeds twice the hundred digit by one. If 3 were added to the number, the units and hundreds digit would be the same. find the number. solve H = hundred digit t in ten digit u in unit

    asked by nancy on September 30, 2015
  72. Math Help Please

    Would you please explain the steps you used to get the answer 2469. Thank you Using the 9 digits, 1, 2, 3, 4, 5, 6,7, 8 and 9 you can arrange four different digits to form a four-digit number that is NOT divisible by 7. The digits 1238 cannot be arranged

    asked by TO: Steve on March 8, 2012
  73. Math

    I am a four digit number, I am between 2,000 and 3,000 the digit in the ones place is four times as much as the digit in the thousands place. Only one of the digits are the same. The digit in the tens place is one more than the digit in the hundreds place.

    asked by Anonymous on August 17, 2015
  74. Mathe

    The number has two digits. Both of the digits are even.the digit in the tens place is greater that the digit in the unit (or ones) place.the units (or ones digit) is not in the three times table. The tens digit is not double the ones digit. The sum of the

    asked by John on February 9, 2014
  75. Science (Chemistry!)

    I just do not understand ANYTHING about multiplying/dividing/adding/subtracting significant figures! For example, the problem is: Solve the following to the correct number of significant figures: (5.039)(0.0074) What am I supposed to do? Just multiply the

    asked by Hayley on August 31, 2006
  76. SCIENCE - PLEASE HELP PLESE

    1) Round 578.683 m, 47.3333 kg, and 789.5 cm to four significant figures. 2) Find the weight of a 12.25 kg dog. Round your answer to the correct number of significant figures. Use weight=massxfree-fall acceleration. 3) Round 3155.24m, 8.777 73 cm, and

    asked by Andra on September 28, 2014
  77. math

    Find a six-digit even number containing no zeros and no repeating digits in which the first digit is four more than the second digit, the third digit is one less than the sixth digit, and the fourth and fifth digits when read as a single number equal the

    asked by Chris on May 7, 2012
  78. Math

    It's a riddle question. All six digits in the number even remember that zero is an even number one digit is use once and all the other digits is used twice is four times the hundreds digit 10 digit is the difference of the ones digit in the hundred digit

    asked by Maria on September 21, 2016
  79. Math

    It's a riddle question. All six digits in the number even remember that zero is an even number one digit is use once and all the other digits is used twice is four times the hundreds digit 10 digit is the difference of the ones digit in the hundred digit

    asked by Maria on September 21, 2016
  80. physics

    The speed of a space shuttle is 3.2×10^6 cm/s. Convert this into miles per hour (mph) using only 12 inches/ft, 60 seconds/min, 60 minutes/hour, and 1 inch = 2.54 cm. Factor Analysis must be used. Express your result to three significant digits and in

    asked by sam on January 27, 2016
  81. Chemistry- urgent!

    Perform the following operations and express the results in the correct number of significant digits or decimal places. Express all results in scientific notation. Please help me I'm so confused on how to do this!! 15. (1.71 x 10^6)(6.73 x 10^-8)/2.25 x 10

    asked by Anonymous on September 7, 2014
  82. MATH

    Need Answer to the Following Please: Using the 9 digits, 1, 2, 3, 4, 5, 6,7, 8 and 9 you can arrange four different digits to form a four-digit number that is NOT divisible by 7. The digits 1238 cannot be arranged to create a four-digit number that is

    asked by Please Help Me on March 6, 2012
  83. physics

    Two stars with masses 2.75 x 10^30 kg and 5.92 x 10^30 kg form a binary system. If the two stars have an average separation of 7.28×10^8 km, compute the magnitude of the gravitational force in Newtons between the stars. Express your result in scientific

    asked by lizbeth on March 22, 2016
  84. Math

    math puzzle: i am less than 3000. all four digits are odd. all four digits are different. the sum of my tens digit and ones digit is 16. i am divisible b 13. who am i? Ans: the thousand digit must be 1, the hundreds digit is 3 or 5. The tens and ones

    asked by William on January 19, 2016
  85. math

    use the clues to find the 7th digit mystery number. * Its is between 1 and 2 million * the first three digits are the same the least possible digit is in the thousands place. *the greatest possible digit is in the ones place * the hundreds digit is 1 more

    asked by edwin on November 30, 2007
  86. math

    Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter your answer with the correct number of significant figures. 885.75 g + 10.151 g - 25.50 g Calculate the value of the

    asked by help? on September 23, 2010
  87. math

    What mystery number has 8 digits; none of the digits are the same. It is evenly divisible by 10. The value of one of the digits is 80,000. The digits in the millions place is the largest 1-digit odd number. The digit in the thousands place is 3 less than

    asked by Adonis on April 16, 2012
  88. Science

    Calculate and give answer of appropriate number of significant digits A. 7.6 x21.9 B. 2,15 x 3.1 x 100 C. 38/7

    asked by Mileena on March 8, 2017
  89. Math

    In scientific notation, what is the product of 1.2 × 10^3 and 1.4 × 10^2? Express your answer to two significant figures. Can you also explain how to do this? Thanks!

    asked by Kaitlyn on November 11, 2016
  90. 5th Grade Math

    Not only need answer but need to know how you teach a 5th grader how to solve this problem. You can only use the digits 0-9. I need an odd number that is a multiple of five with no repeated digits. Half the digits are odd and the other half is even. The

    asked by Amy on August 31, 2012
  91. 5th Grade Math

    Not only need answer but need to know how you teach a 5th grader how to solve this problem. You can only use the digits 0-9. I need an odd number that is a multiple of five with no repeated digits. Half the digits are odd and the other half is even. The

    asked by Amy on August 31, 2012
  92. chemistry

    Calculate the pH of a 3.00×10-4 M solution of the strong acid HClO4. Round your answer to 3 significant digits.

    asked by HELP ASAP PLEASE on October 10, 2013
  93. math count warm up

    What positive four-digit integer has its thousands and hundreds digits add up to the tens digit. Its hundreds and tens digits add up to its once digit and its tens and ones digits add up to the two digit number formed by the thousands and hundreds digits?

    asked by Sam on November 9, 2014
  94. math

    *The number has 8 digits, none of the digits are the same. *It is evenly divisible by 10. *The value of one of the digits is 80,000 *The digit in the millions place is the largest 1-digit odd number. *The digit in the thousands place is 3 less than the

    asked by rod on September 25, 2012
  95. STATISTICS

    A study examining the relationship between fetal X-ray exposure and a particular type of childhood blood cancer found the following odds ratio (and 95% confidence interval) for the association: 2.44 (0.95 to 6.33). This result would likely be considered:

    asked by Susie on August 7, 2013
  96. STATISTICS

    A study examining the relationship between fetal X-ray exposure and a particular type of childhood blood cancer found the following odds ratio (and 95% confidence interval) for the association: 2.44 (0.95 to 6.33). This result would likely be considered:

    asked by smoothjive on August 10, 2013
  97. S.S

    In the election of 1856, Millard Fillmore was the Know-Nothing candidate and received 21 percent of the popular vote. What conclusion could be drawn from this fact? A. A significant number of people opposed slavery. B. A significant number of people were

    asked by john on March 7, 2018
  98. math

    Solve the mathematical puzzle. Determine the digits of F from these clues. The digits of F are all the same. The sum of all the digits of F is 12. The answer when any two of the digits are multiplied together is also 9. F is a four-digit number.

    asked by Bria S. on June 30, 2013
  99. physics

    Find the direction and magnitude of the following vectors. A⃗ =( 22 m )x^+( -15 m )y^ Express your answer in degrees using three significant figures. θA = Part B Express your answer in meters using two significant figures. |A⃗ | = m Part C B⃗ =( 2.5

    asked by ana22 on February 11, 2017
  100. math

    Get the number right. *None of the digits repeat. *It is between 20,000 and 77,777 *The digit in the thousands place is 3 times the digit in the ten thousands place *The ones digit is a prime number *The hundred digit is half the sum of the ones,

    asked by Tori on September 26, 2012

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