Questions Asked on
August 26, 2010

  1. chemistry

    2H2O2 --- 2H2O + O2 is this a redox reaction if so what is the oxidized reactant and reduced reactant

    asked by Kelsey
  2. Chemistry

    What would be the steps to solving this problem? The aluminum sulfate hydrate [Al2(SO4)3 (times) xH2O] contains 8.20 % Al by mass. Calculate x, that is , the number of water molecules associated with each Al2(SO4)3 unit.

    asked by Amy~
  3. Chemistry

    The steps to getting the answer. A certain metal oxide has the formula MO where M denotes the metal. A 39.46g sample of the compound is strongly heated in an atmosphere of hydrogen to remove oxygen as water molecules. At the end, 31.70g of the metal is

    asked by Amy~
  4. physics

    The disk shaped head of a pin is 1.0 mm in diameter. Which of the following is the best estimate of the number of atoms in the layer of atoms on the top of the surface of the pinhead? 1. 10 to the 34th power 2. 10 to the 19th power 3. 10 to the 24th power

    asked by Kailey
  5. 5th grade

    what is the analogy to height:inches:weight?

    asked by makenzie
  6. Calculas

    In the early 1960s, radioactive strontium-90 was released during atmospheric testing of nuclear weapons and got into the bones of people alive at the time. If the half-life of strontium-90 is 32 years, what fraction of the strontium-90 absorbed in 1965

    asked by Cratch
  7. physics

    A car going at 30 m/s undergoes an acceleration of 2m/s squared for 4 seconds. What is it's final speed? How far did it travel while it was accelerating?

    asked by Anonymous
  8. English

    I need help to error free assignment. Sappho born 630 B.C. in Lesbo. She was lyric poet. She wrote poetry that was admired by ancient world. Her poetry work was very personal in nature .She talk about herself, family , daughter and lovers. She also

    asked by hiba
  9. algebra1

    an internet serive provider charges $9.95/month for the first 20 hours and $0.50 for each additonal hour. write and expression presenting the charges for h hours of use in one month h is more than 20 hours. what is the charge for 35 hours... pls show me

    asked by alanaR.
  10. physics

    a rock is dropped from a cliff falls one-third of it's total distance to the ground in the last second of it's fall. how high is the cliff?

    asked by chelsea
  11. Chemistry AP-Density

    The level of water in a graduated cylinder is at the 100 mL mark. When a platinum crucible floats on the surface of the water, the level reads 157.9 mL. When the crucible is totally immersed in the same cylinder, the level reads 102.70 mL. What is the

    asked by Victoria
  12. physics

    A stone is dropped from the top of a cliff. It hits the ground below after 3.10 s. How high is the cliff?

    asked by ami
  13. algebra 1

    real- world situation that could be modeled by the expression b less than 17

    asked by alanaR.
  14. algebra1

    friday's temperature was 20 degrees warmer than monday's temperature t. write an expression for friday's temperature.... my answer is 20dregees + T is that correct?

    asked by alanaR.
  15. science

    Which of the following is the MOST destructive force associated with tornadoes? a) The destructive pressure of the high winds associated with the tornado. b) The explosive pressure difference between the inside of a home and the lower pressure outside due

    asked by carl bennett
  16. science

    how are fossil fuels formed???

    asked by nichole
  17. NSU

    The Omega pharmaceutical firm has five salespersons, whom the firm wants to assign to five sales regions. Given their various previous contacts, the salespersons are able to cover the regions in different amounts of time. The amount of time (days) required

    asked by Ross
  18. Calculus

    A baseball, hit 3 feet above the ground, leaves the bat at an angle of 45' and is caught by an outfielder 3 feet above the ground and 300 feet from home plate. What is the intitial speed of the ball, and how high does it rise? So far i have got a few

    asked by Jerry
  19. physics

    To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights and hot energy,” by which we mean turning off lights and hot water when they are not being used, and keeping thermostats at a moderate level. In

    asked by Anonymous
  20. dynamics, check my ans

    Three identical train locomotives, on separate tracks, apply the maximum force needed to begin moving. The first train consists of a single empty freight car, the second train consists of 50 empty freight cars, and the third train consists of 50 equally

    asked by jenny
  21. phy

    A baseball is hit nearly straight up into the air with a speed of 24 m/s. (a) How high does it go? (b) How long is it in the air?

    asked by ami
  22. algebra 1

    ASTRONOMY- an object's weight on mars can be found by multiplying 0.38 by the object's weight on mars. a) an object weighs p pounds,on earth. write an expression for its weight on mars. my answer is 0.38p, is it correct? b)dana weights 120 pounds, and her

    asked by alanaR.
  23. spanish 1

    1-7 What would you say in the following situations? 1. You are dancing with a friend and accidentally step on his/her toe. 2. A friend gives you a birthday present. What do you say to him/her? How does he/she respond? 3. You want to pass by some people who

    asked by Jake
  24. 9th grade

    what three criteria can help you evaluate health information

    asked by jesus
  25. Algebra

    Kate cut a 100-foot rope into two pieces. One piece was 5 feet longer than 4 times the length of the other. Find the length of each piece.

    asked by Jacob
  26. History

    Please give me suggestion on this essay that I wrote. Thanks. Discuss the origins of World War I. Can any single country be blamed for starting the war? In what ways did the alliance system, implemented to maintain a peaceful balance of power in Europe, in

    asked by Adesuwa
  27. Physics

    When two vectors vector A and vector B are drawn from a common point, the angle between them is phi. If vector A and vector B have the same magnitude, for which value of phi will their vector sum have the same magnitude as vector A or vector B?

    asked by Ami
  28. percentages

    You and your coworker together make $ 16 per hour. You know your coworker earns 10 percent more than you do. Your hourly wage is $ ???? your hourly wage is raised to $ 12. This is a raise of ??? After returning to work you can't help mentioning casually to

    asked by Brianna
  29. math

    unscramble letters into 3 words m a s r r l a e a e h c d d i

    asked by jackson
  30. math

    If a ball is dropped from from 288 ft above the ground, how long does it take to reach ground level?

    asked by Gina
  31. Algebra

    After a 5% raise your new salary is $ 63000. Before the raise your salary was?? Help. Please.

    asked by Ryan
  32. Chemistry Help!

    The reaction is O3 + NO arrow O2 + NO2 If 0.740 g O3 reacts w/ 0.670g of NO, how many grams of NO2 will be produced? I've tried to solve this. but I can't seem to get the right answer

    asked by Amy~
  33. English Help 2

    Through out her poetry, she seems to be very passionate about her love .she talks about her lover “He seems to me Equal to Gods” .She thinks ,Her love for that man is undesirable .She loves him very much that she worship him like a God. She is at the

    asked by hiba
  34. zoology

    why all chordates are vertebrates but all vertebrates are not chordates? i need it badly

    asked by sharmili
  35. math

    two angles are complementry. one angle measures 50 degrees what is the measurement of the other angles 180-50=130 so it 130

    asked by anonymous1
  36. Math

    Eve:"Doris and I are twins" Ann: "Doris and Eve are not twins" Doris: "Ann and I are not twins" Who are the twins?

    asked by Nicole
  37. algebra1

    write an algebraic expression for each verbal expression. then write a real-world situation that couyld be a modeled by expressio. (what does it mean by real-world) like theres this on. the product of 2 and x, my answer is 2x, 2 times x... is it correct?

    asked by alanaR.
  38. chemistry

    An aluminum engine block has a volume of 4.86 L and a mass of 12.75 kg. What is the density of the aluminum in grams per cubic centimeter?

    asked by maryanne
  39. Chem 101. Science

    Rank the following samples in mass from least to greatest. a) 2 x 1023 S atoms b) 0.25 mol of Cu atoms c) 2 mol of N atoms d) 6 x 1023 Na atoms

    asked by Samuel
  40. spanish 1

    Can any one help me answer these questions, i am having trouble because i haven't received my book yet. Modelo: Elena / Colorado ¿De dónde es Elena? Es de Colorado. 1. la profesora Guzmán / España 2. usted / Texas 3. tú / Arizona 4. ellas / Chicago

    asked by Jake
  41. Economics

    A factory producing motorcycle helmets employs six workers. At the current production level, each worker produces 20 helmets per week. Assuming that labor is the only variable input and that the weekly wage equals $600 per week, average variable cost: a.)

    asked by Mary
  42. Chem 101

    Consider the reaction of 82.0 g of oxygen as follows: 4Fe + 3O2 2Fe2O3 How many moles of oxygen react? How many moles of iron must react? How many moles of product form? What mass of product forms?

    asked by Samuel
  43. math

    Part 1 If 1/4 cup of Egg Beaters equals 1 egg, how much Egg Beaters do we need if we only want 1/3 egg? The solution should be expressed in cups. Part 2: Convert your answer in part 1 to tablespoons or teaspoons, whichever unit gives a whole number. Let

    asked by Leona
  44. phy

    A helicopter is ascending vertically with a speed of 5.50 m/s. At a height of 155 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the

    asked by ami
  45. Math

    An equilateral triangle is one in with all three sides are length. If two vertices of an equilateral trangle (0,4) and (0,0), find the third vertex. How mant of these triangles are possible? How would you slove this??

    asked by Jane
  46. economics

    can anyone explain to me how to solve for P, if Q=240-2P?

    asked by Christina
  47. Chem 101 science

    Rank the following samples in number of atoms from least to greatest. a) 2 mol of K atoms b) 48 g of S c) 27 g of Be d) 50 g of Na

    asked by Samuel
  48. MATH

    What is 3/4 of 4/9 kilogram?

    asked by Sammy J
  49. 12th grade - Math

    Identify the system as consistent, inconsistent or dependent. Explain your choice. 1.) 3x - 2y = 12 6x - 4y = 24 2.) x= -5 y= 4

    asked by Liz
  50. geometry

    The coordinates for points C and R are (-1, 4) and (6, 4), respectively. RS and CD intersect at P (3, 2)

    asked by Ashley
  51. Physics 1

    The cartesian coordinates of a point in the xy plane are x= -3.64 m, y = -1.75 m. 1. Find the distance, r, from the point to the origin. Answer in units of m. 2. Calculate the angle between the radius-vector of the point and the positive x axis (measured

    asked by Kailey
  52. science

    Which of the following statements is FALSE? a) The first stage of a thunderstorm's development is the cumulus stage. b) Warm air is less dense than cold air c) The cumulus stage of a thunderstorm usually features heavy rains.

    asked by carl bennett
  53. phy

    A horse canters away from its trainer in a straight line, moving 140 m away in 16.0 s. It then turns abruptly and gallops halfway back in 5.0 s. (a) Calculate its average speed. (b) Calculate its average velocity for the entire trip, using "away from the

    asked by ami
  54. physics

    . When a driver applies brakes to keep a car going downhill at constant speed and constant kinetic energy, the potential energy of the car decreases. Where does this energy go? Where does most of it appear in a hybrid vehicle?

    asked by Anonymous
  55. biology

    what is the geologic time scale

    asked by roel
  56. marketing

    Mass marketing is dead versus Mass Marketing is still a viable way to build a porfitable brand?

    asked by jhean
  57. Physics

    Within a book on a desk there are billions of forces pushing and pulling on all the molecules. Why is it that these forces never by chance add up to a net force in one direction, causing the book to accelerate "spontaneously" across the desk?

    asked by Jenna
  58. algebra

    Translate the problem into a pair of linear equations in two variables. Solve the equations using either elimination or substitution. State your answer for both variables. In a basketball game, Will scored 26 points, consisting only of three-point shots

    asked by star
  59. Density

    A new penny has a mass of 2.54 g and a volume of 0.354 cm3. Is the penny made of pure copper? what is its density? thanks:) Density is mass/volume but I don't know how to find it with g and cm3

    asked by Maria
  60. physics

    To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights and hot energy,” by which we mean turning off lights and hot water when they are not being used, and keeping thermostats at a moderate level. In

    asked by Anonymous
  61. algebra 1

    this promblem will prepare you for the real world connection. the air around u puts pressure on ur body equal 14.7 pounds per square inch (psi). when you are underwater, the water exerts additional pressure on ur body. for each foot u r below the surface

    asked by alanaR.
  62. chemistry

    how could you find the mass and volume from this info Acetone (fingernail-polish remover) has a density of 0.7857 g/cm3.

    asked by Sara
  63. History

    Please give me suggestion on thie essay that I wrote.However, maybe there is some points missing. Thanks. How did imperialism impact non-western economies? How did Europeans achieve these transformations of local economies? What were the effects of those

    asked by Adesuwa
  64. Math

    Dave has quarters, dimes and nickles in his bank. He has 3 more dimes than quarters and 6 less nickles than quarters. There are 63 total coins. How many are quarters?

    asked by Josh
  65. History

    I have read the suggested link you and my conclusion is writting below. Thanks,for all your suggestions. Question 2 During World War I the most striking break from pre-war conditions on the home front was Answer (A)the use of volunteer armies. (B)central

    asked by Adesuwa
  66. math

    write the following science ideas mathematically using symbolic representation you observe that one fox eats 100 rabbits each year. you have an idea that every increase of one in fox population will cause the rabbit population to decrease by 100 fx100=

    asked by anonymous1
  67. math

    the expression 1/12 / (1/4 + 5/12) is equivalent to a - 1/18 b - 7/12 c - 1/8 d - 1/2 1/4= 3/12 3/12 + 5/12= 8/12 1/12 / 8/12 = 1/12 x 12/8 12/96=1/8 c-1/8

    asked by anonymous
  68. Science

    how do the properties of compounds often compare with the properties of the elements that make them?

    asked by Diamond
  69. geometry 11th grade

    suppose the coordinate of 9 is 2, pq=8 and pr=12. what are the possible coordinates of the midpoint of the given segment qr

    asked by cody
  70. math

    explain how you can find the sum 25+59 using mental math

    asked by tyquan
  71. language

    I am trying to do a report on the following and can't find any sites that contain info to make report. Looking for various types of humans that have lived on earth since time began. thanks for any help

    asked by nick
  72. Math(Please help)

    Simplify the expression: (x^9y^-4)^6 x^54/y^24 Is this correct?

    asked by Hannah
  73. spanish

    and then from this i got 2 correct Modelo: You want to greet Mrs. Gutiérrez. It is 10:00 A.M. Buenos días, señora Gutiérrez. 1. You want to greet Mr. Gutiérrez. It is 2:00 P.M. Your response: Buenos días, señor Gutiérrez. es el dos de la mañana

    asked by Jake
  74. Algebra Help

    Write the equation of a perpendicular bisector of the segment joining the points: (7,2) and (3,0). Okay, so I don't even know what a bisector is. Is there a formula for this or something? If some could someone tell me it. Or tell me the process.

    asked by Kendra
  75. Chemistry

    What is the freezing point of an aqueous 2.25 m potassium nitrate (KNO3) solution? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.

    asked by Cecilia
  76. psychology

    Within groups, differences in intelligence are highly correlated with_______. Between groups, differences are highly correlated with ________. a) heritability: environment b)environment: genes c) heritability:random error in measurment d) genes: the

    asked by Rina
  77. Physics

    100= 1/2 50 v* v=? *squared* 10=(50-v)/4 v=?

    asked by Jerry
  78. math

    You make $ 90000 a year, and you get a 10% raise. Your new salary is $ .??? The next year you get a 10% cut. Your new salary is $ ????. That is ??? % less than your initial salary. How would I go about solving this??

    asked by Brian
  79. calculus

    Find the anti-derivative of x^4... Isn't it 4x^3+c? Please help... Thanks!

    asked by deb
  80. reading (Beloved by Toni Morrison)

    In the book Beloved by Toni Morrison, who or what is Beloved? (need at least 3 theories, suggestions, guesses, etc)

    asked by May
  81. English

    can anyone come up with an idea for a short narrative for the poem "In the tube" by Richard Aldington. it has to fill a gap in the poem, in other words it has to say what it hasn't in the poem. the focus is on 'marginalization' i have to write an

    asked by star
  82. math

    What if Julie is thinking of an even number between 12 and 29with digits whose difference is 7? What is the number?

    asked by Anonymous
  83. conversion problems

    convert 3.1 L to quarts

    asked by Rebekah
  84. pre-algebra

    Think of a 1-9 multiplication table, are there more odds or evens, is it different from a 1-9 addition table

    asked by Kiera
  85. MATH!

    bob and his dad visited the hardware store on saturday. they observed the following transaction: Mr. Harris bought 4 for $0.50, Mrs. clark bought 21 for $1.00, Mr. Montaro bought 1,134 for $2.00 and Ms. Park bought 450 for $1.50. what were they buying?

    asked by Anonymous
  86. English

    I had to write five sentences in which I used 5 different tenses. Here is what I wrote: Education helps financial planning by giving basic skills needed for better jobs and higher wages. (Present) Education will help financial planning by giving basic

    asked by Katie
  87. science

    writ the following science ideas mathematically using symbolic representation You learn that for every 1,000 meters you know the temperature drops by 6`c. You have the idea that if you know the temperature at the base of a mountain and its height you can

    asked by anonymous1
  88. domains of development

    describe why it is important to consider each domain in the study of adult development

    asked by amber
  89. math

    a car is traveling at the rate of 40 miles per an hour. how many minutes will it take it to travel 220 miles? 220/40=5.5 5.5*60=330 330

    asked by anonymous1
  90. math

    14m^2n-6m^2n= a- 20m^2 b- 8m^2n c- 8m d- 8 e- 8m^4n^2

    asked by anonymous1
  91. math

    2/3=n/72 3n=144 144/3=48 48

    asked by anonymous1
  92. math

    Simplify the equation: 8^-3 X 8 I know that 8^-3 is 1/512 so do I now multiply the 8 to the 1 and 512?

    asked by Hannah
  93. science

    A mixture of two gases, Xe and H2, has the properties listed below. PXe=190torr PT=250torr What is the ΧH2 for this mixture? I'm sorry I really don't get this.

    asked by Tiffany
  94. Cultural Diversity

    what are two to three characteristics of Orientalism? How may Orientalism and prejudice contribute to hate crimes against Muslim and Arabic groups?

    asked by michelle
  95. algebra 2

    1/5(b+10)-7=1/3(b+9)

    asked by champ
  96. ALGEBRA 2 W/TRIG

    What is the slope for y=3/4x+1?

    asked by ashly
  97. spanish

    in Latin America, to several friends Your response: ellos Points earned: 0 out of 1 what pronoun would you use??

    asked by Jake
  98. Math

    how do I graph the equation 2x+y=0?

    asked by Jennifer
  99. algebra1

    which expression represents x? _________________________ x ^ 5 _________________________ 12 a) 12-5 b) 12 + 5 c) 12(5) d) 12 divied by 5... my answer is A, is it correct?

    asked by alanaR.
  100. Critical thinking

    Explain in a easy way of abiguity

    asked by dave johnson
  101. math

    i don't know how to get rid of the fractions in these linear equations, can someone help ? one: 9/2(x+3) -4 =23 two: 3/4(24-8x)=2(5x +1)

    asked by Catherine
  102. biology

    do some seeds have no cotyledons?

    asked by Anonymous
  103. Chemistry

    What is the freezing point of an aqueous 2.25 m potassium nitrate (KNO3) solution? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.

    asked by Cecillia
  104. science

    Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard

    asked by gilbert
  105. Child psychology

    Studies on the development of sexual orientation highlight the importance of A.genetics B. environment C. prenatal hormones D. multiple factors I said A the enviroment, Now thinking its D

    asked by Anonymous 2
  106. math

    n/12=3/4= 4n=36 36/4=9 9/12=3/4 9

    asked by anonymous1
  107. math

    1.032+0.987+3.07= 1.032+0.987=2.019 2.019+3.07=5.089 5.089

    asked by anonymous1
  108. math

    (2r+s)14r= A-28rs B-15p^4t C-15p^4t^2 D-8p^2t e-8p^4t^2 c

    asked by anonymous1
  109. algebra

    35ab/105bc

    asked by tifani
  110. 8th grade math

    The area of Manhattan Island is 641, 000,000 square feet. According to legend, the Indians sold it to the Dutch for $24. Estimate the area that was purchased for one cent.

    asked by Shaun
  111. science

    fog forms whenever there is a loss of heat from the earth through

    asked by pam
  112. us history

    where can i go to read a text book if i forgot it at school

    asked by brad
  113. chemistry

    Fill in the blanks. (a) 5.6 ft2 = ____ in2 (b) 5.6 yd2 = _____ ft2 (c) 5.6 m2 = ____ yd2 can you please explain how to do it

    asked by Rebekah
  114. science

    how are fossil fuels a part of the carbon cycle?

    asked by nichole
  115. English

    1. When you call to others, use the home phone. 2. Call to others' home phone numbers. 3. With the home phone, call to others' home phones. Don't use cell phone when you call others' cell phones. Use the Interphone. It's much cheaper. (Are the expressions

    asked by rfvv
  116. IDk wut subject

    how do you know if a penny is pure copper?

    asked by Sara
  117. English

    Sometimes he painted in his studio based on the sketches he drew outside. (is this sentence grammatical? What is the sense subject of 'based'? What other sentences can we make which have the same meaning?)

    asked by rfvv
  118. math

    Explain what benchmark you would use to estimate the number of people that can ride on a bus.

    asked by esteban
  119. algebra1

    for many skyscrapers, the height of one story is equal to about 12 feet. (a. write an expressing that approximates the height in feet of a skyscraper that is s stoires tall. (b. estimate the hieght in feet of skyscrapers that are 20, 24, 28, and 32 stories

    asked by alanaR.
  120. History

    Please can anyone check my answers to this question if is correct or not. Thanks. Question 1 In 1907, in order to balance the Triple Alliance, the Triple Entente was formed by Answer (A)Italy, France, and Britain. (B)France, Russia, and Britain. (c)

    asked by Adesuwa
  121. adult education

    Already Tried: Proposal to Solo Practitioner or Head of Firm For your Midterm Project, you will draw upon what you have learned so far in this course. Recall back to Unit 2, where you developed guidelines for ensuring network security in your office. In

    asked by TAMI
  122. phy

    what assumption have you made in performing the free fall lab experiment and analyyzing the results?

    asked by ami
  123. Calc HELP!

    an equilateral triangle is one in with all three sides are length. If two vertices of an equilateral trangle (0,4) and (0,0), find the third vertex. How mant of these triangles are possible? How would you sove this???

    asked by Anonymous
  124. math

    which number is greater 3.546 or 3.56

    asked by matt
  125. trig

    How do I find 2 tan squared time x = sec times x -1

    asked by Will
  126. Algebra

    -1

    asked by Bob
  127. science

    When cold air moves below warm air (which rises), we feel _______, depending on how fast the air moves. a) an earthquake or earth tremor b) a drizzle or rainstorm c) a breeze or wind d) a tornado or thunderstorm d

    asked by help
  128. math

    cos((sin^-1) 1/2)) sin^-1(sin 7pi/6)

    asked by kelly
  129. math

    the circumference of the circle is 24cm what is the radius? 24=2 pi r 24/3.14=8 8/2=4 4cm

    asked by anonymous1
  130. language fundemtal

    nouns? happy child

    asked by lp
  131. math

    a wheel has a diameter of 31.8 inches. what is the circumfernce?

    asked by karlie
  132. math

    3% of 80 2.4

    asked by anonymous1
  133. math

    unscramble letters into 3 words m a s r r l a e a e h c d d i

    asked by jackson
  134. Alg 2

    Complete the equation for te function picturEd in each mapping diagram. The domain is 1,2,3,4 and the range is 2,4,8,16. The equation is a number times X what's the equation. The book says that the answer is 2x but I don't know how they got that. Please

    asked by Jessica
  135. math

    7.5*100=7500

    asked by john
  136. math

    16/24=_________ 16/8=2 24/8=4 1/2

    asked by anonymous1
  137. MATH

    WRITE IN WORD&EXPANDED FORM 4,568,347

    asked by LAURA
  138. History

    Thanks, for for your suggestion.Please check on the following questions, if I have the correct answers. Question 1 During World War I the most striking break from pre-war conditions on the home front was Answer (A)the use of volunteer armies. (B)central

    asked by Adesuwa
  139. 8th grade

    4+6x-9x=3x

    asked by Dee
  140. 9th grade

    two of the forms of a linear equation are standard form and slope-intercept form. explain when each one is more useful

    asked by Donna
  141. math

    sin^-1(sin 7pi/6)

    asked by mathew
  142. chemistry

    28.66ml(.7857 g/cm cubed)= meters

    asked by Maria
  143. algebra 1

    please explain to me how I work out problems such as "-2-3" to get the correct answer and show the same on a number line

    asked by joe
  144. math

    why, when doing probability and rolling dice with inclusive numbers.... do you subtract 1 ?

    asked by tana
  145. algebra

    what is four less than eighteen

    asked by Anonymous
  146. mat115

    please help with math problem. Can you show me the work. 7(-7)-7(2-3) ____________ 2(-6+9) Thanks for your help!

    asked by adore001
  147. science

    what is a control?

    asked by shannon
  148. history

    what presidents make up mt rushmore

    asked by annie
  149. mat115

    Please help me with this math question. I am asked to show my work but I don't know how to solve the problem to show my work. The question is: Choose the correct list of factors of the number 8. Again, I have to show my work with this question. Please help

    asked by adore001
  150. Algebra

    Write the equation of the line that passes through the (-2,1) and is perpendicular to y=5. Okay, I don't understand how I can do this without a slope.

    asked by Kendra
  151. algebra

    what is -2=6/7p

    asked by zack
  152. geometry

    the length of a rectangle is 9 inches. write an expression for the area of the rectangle if the width is w inches. find the area of the rectangle when the width is 1,8,9, and 11 inches.

    asked by alanaR.
  153. math

    Explain what benchmark you would use to estimate the number of people that can ride on a bus.

    asked by esteban
  154. science

    what is the meaning of denitrification?

    asked by cuticess
  155. Algebra

    how do i get rid of the fractions in this expression ? its supposed to be using order of operations original problem: (6^2 + 18) divided by 9 + 2/3(8)-6

    asked by Catherine
  156. mat115

    Need help with this math question and need to show work. A computer transmits 11 web pages in 4 seconds to a web server. A second commputer transmit 33 pages in 8 seconds to the server. are these two computers transmitting at the same speed. Yes or no and

    asked by adore001
  157. mat115

    need help with computing this problem: -81 + (-13) need work shown. Thanks for your assistance

    asked by adore001
  158. math

    What geometrical shape is a top hat?

    asked by THerese
  159. high school

    Explain in your own words the difference between an account that is earning simple interest for 5 years and another account that is earning interest that is compounded annually for 5 years

    asked by kenneth
  160. Math

    Vehicle A averages 14 miles per gallon of gasoline, and Vehicle B averages 36 miles per gallon of gasoline. At these rates, how many more gallons of gasoline does Vehicle A need than Vehicle B to make a 1,008-mile trip?

    asked by Kelly
  161. mat115

    Need assistance with this problem. I have computed the problem but my answer isn't matching one of the multiple choices. What am I doing wrong? 11-6 ____ 7-7 11 - 7 = 4 4 - 6/7 = 3 + 7/7 - 6/7 =3 1/7 which is the same as 22/7 the multiple choices on my

    asked by adore001
  162. science

    The measure of the weight of the air above us is called "________."?

    asked by shorty
  163. science

    Hail is only observed directly under the cumulonimbus cloud in which it's formed. a) true b) false

    asked by shorty
  164. algebra1

    can someone please tell me if my answers are correct to my previous question...

    asked by alanaR.
  165. math

    what is the largest whole number x for which 2x is less than 13.7?

    asked by Aaron
  166. chemistry

    28.06 mL to grams

    asked by maryanne
  167. math

    what are some rational expressions used by accountants

    asked by spiderman
  168. economic

    Imagine that you are a business owner. Choose whether to hire a new person in the marketing department or upgrade your computer system. Each choice requires the same amount of investment. Address the following topics: What factors do you use to determine

    asked by Anonymous
  169. literature

    hopkins's use of "seared","bleared",and "smeared"is an example of?

    asked by Anonymous
  170. math

    what is the prime factorization of 84 a-2^2x3x7 b-2^2x3+7 c-2^3x3^2 d-2x3^2

    asked by anonymous1
  171. science

    how to find out the mass of your shoe

    asked by salome
  172. math

    evaluate 7/15 + 2/5 7/6 + 1/4 + 7/12

    asked by Sammy J
  173. math

    A pack of 250 key blanks cost $23.50. What is the unit price? If each key costs a customer $1.75, and it takes 2 minutes for Darren to cut a key, how much does Darren make per hour? If Darren, as the business owner, pays himself $800 per week, how much

    asked by Leona
  174. math

    Simplify the expression: (x^9y^-4)^6 x^54/y^24 Is this correct?

    asked by Hannah
  175. Business Communication

    Which of the following sentences advocates an idea in a positive way? A."I can't see anyone buying the product at that price." B."The unit is way overpriced." C."Customers can get a better deal anywhere else." D."We can corner the market if we discount the

    asked by Kimberly
  176. Chem 2 enthalpy

    How much heat is evolved when 25.5 g of benzene freezes at 5.5 Celcius (molar heat of fusion is 9.94 kJ/mol and molar mass of benzene= 78.0 g/mol)

    asked by Anonymous
  177. math

    have to label the sides of a vertices

    asked by jasmine
  178. math 5th grade

    Q 1. Find all the multiplication combinations you can for these two numbers, using whole numbers. Start by multiplying two factors. Then find ways to multiply with more than two factors. 18 & 180 Q 2. How did finding the ways to multiply with two numbers

    asked by Katelee
  179. science

    the absorption of heat by any substance is dependant upon

    asked by sean
  180. algebra1

    evalute each expression for r=6, s=5, and t=3.... sr, 56? what do i do next? i don't think i can do anything else, pls help me

    asked by alanaR.
  181. Math

    Simplify the equation: 8^-3 X 8 I know that 8^-3 is 1/512 so do I now multiply the 8 to the 1 and 512?

    asked by Hannah
  182. Physics

    M/5=30 M=?

    asked by Jerry
  183. digital photagraphy

    What would be in the priiciple of design abobut a tree in front, and the backround being dark?

    asked by raquelle
  184. algebra 1

    for many skyscrapers, the height of one story is equal to about 12 feet. (a. write an expressing that approximates the height in feet of a skyscraper that is s stoires tall. (b. estimate the hieght in feet of skyscrapers that are 20, 24, 28, and 32 stories

    asked by alanaR.
  185. Rational Expressions and Equations

    How do you know when to move the number to the left or the right. For example (x-5)/(x+8)=5/7 or (y-2)/(y+2)=3/7

    asked by April
  186. calculus help

    Find the points where the tangent line is horizontal or vertical. Find the area under one period of the curve. x= r(deta - cos deta) Y= r(1- sin deta)

    asked by stan
  187. 12th grade - Math

    Explain. 1.) To solve x(x-5)=0 either factor may be equal to zero. 2.) | 8-15i | = 17 3.) The solution for x^2 = -2 cannot be found graphically. [any help or explanation is greatly appreciated]

    asked by Liz
  188. Math

    how do you add,subtract,and multiply decimals? please don't put a link.

    asked by brxce
  189. science

    how long is earths orbit and its roatation?

    asked by christian
  190. business math

    If a parking meter has 100 coins in it that add up to $14.50, how man are dimes and how many are quarters?

    asked by lauri
  191. English

    I just would like to know if the following sentences are possible. Thank you. She wasn't allowed to enter the bus.(or get on/take the bus?) The price of sugar increased of 20% (better by?)

    asked by Franco
  192. Psychology

    Within groups, differences in intelligence are highly correlated with_______. Between groups, differences are highly correlated with ________. a) heritability: environment b)environment: genes c) heritability:random error in measurment d) genes: the

    asked by Rena
  193. Calc. Help

    Simplify. #1. 5(2-i) - 3(4+3i) ..my work: 10-5i-12-9i -2-14i Do you leave this as the answer or can you simplify it further? #2. (2-i√2)²

    asked by Hayden
  194. math

    Aparty has a $500,000 IRA. How should he divides the money into fund A for 5.2% annually, and Fund B for 7.7% annually, to produce an annual income of $30,000?

    asked by lauri
  195. chemistry

    to DrBob222 wouldn't it be like this then 4.86L/12.75kg*1000cm^3/1L*(1kg/1000g)^3

    asked by maryanne
  196. computers

    How does organization culture play a role in the successful reliance on the JAD process to identify and gather business requirements? Would JAD work in your company? Why or why not?

    asked by Anonymous
  197. 5th grade math

    what is 2 to the first and second power? component problem

    asked by jack
  198. Intermediate algbra

    How can I solve t^4 - 11t^2 + 18 = 0

    asked by whitney
  199. math

    50% of 182 182x.50=91 91

    asked by anonymous1
  200. science

    THE VOLUME OF A GLASS OF JUICE

    asked by salome
  201. math

    x+y=7 x-y= -3 2+5=7 2-5= -3 7,-3

    asked by anonymous1
  202. math

    4/n = 8/5 8n=20 20/8=2.5 2.5

    asked by anonymous1
  203. math

    28/32 28/4=7 32/4=8 7/8

    asked by anonymous1
  204. math

    4x-2=10 4x2-2=10 2

    asked by anonymous1
  205. Math(Please help)

    Simplify the equation: 8^-3 X 8 I know that 8^-3 is 1/512 so do I now multiply the 8 to the 1 and 512?

    asked by Hannah
  206. Rational Expressions

    How do you know when to move the number to the left or the right. For example (x-5)/(x+8)=5/7 or (y-2)/(y+2)=3/7 I know the first problems answer is 2/75 and the second is 5 and in both cases I seem to mess up on the last part of moving the numbers like

    asked by April
  207. 9th grade

    I am woking on Patterns and Inductive reasoning. I need help on numbers 14-16. Find the next two sequence. 14. Martha, Abigail, Martha, Dolley... 15. Geroge, Thomas, Abe, Alexander.... 16.Aquarius, Pisces, Aries, Taurus.... Please help me!

    asked by Lola
  208. geo

    patterns

    asked by amanda
  209. science

    As the atmosphere heats, the air _______ and becomes _________.?

    asked by sean
  210. math

    Roundes to the nearest ten I am 40. The sum of my digits is 11.

    asked by katia
  211. computer science

    Describe how an operating system that uses paging could make stacks grow dynamically if the original size proves too small. What would the page table data structures look like? Explain what would happen when a thread's stack grows past the area that has

    asked by super
  212. math

    1.x-15=4 6.-12x=60 7.x-8=-10 2.x-7=3 3.x/2=12 4.-6x=-42 5.x+9=22

    asked by grachi
  213. math

    in a pottery class the ratio of oys to girl is 9:15.which fraction is an equivalent form of this ratio . f-2/7 g-3/5 h-3/4 j-2/3 9/3=3 15/3=5 i think its g

    asked by anonymous1