Questions Asked on
February 22, 2017

  1. precalculus, complex numbers

    Let $\omega$ be a complex number such that $\omega^7 = 1$ and $\omega \neq 1$. Let $\alpha = \omega + \omega^2 + \omega^4$ and $\beta = \omega^3 + \omega^5 + \omega^6$. Then $\alpha$ and $\beta$ are roots of the quadratic \[x^2 + px + q = 0\] for some

    asked by Bobby
  2. chemistry

    Four gases were combined in a gas cylinder with these partial pressures: 3.5 atm N2, 2.8 atm O2, 0.25 atm Ar, and 0.15 atm He.What is the mole fraction of N2 in the mixture?

    asked by anonymous
  3. physics

    A large box of mass M is pulled across a horizontal, frictionless surface by a horizontal rope with tension T. A small box of mass m sits on top of the large box. The coefficients of static and kinetic friction between the two boxes are μs and μk,

    asked by jjh
  4. Math word problem

    The admission fee at an amusement park is $ 1.50 for children and $ 4.00 for adults. On a certain day, 258 people entered the park, and the admission fees collected totaled $712 . How many children and how many adults were admitted? I tried doing it this

    asked by Nathalie
  5. Math

    The product of (4z2 + 7z – 8) and (–z + 3) is –4z3 + xz2 + yz – 24. What is the value of x? What is the value of y?

    asked by anonymous
  6. english

    1.Even though he had been driving for five hours, Jacob was not (A. inclined, B. coherent, C. nuanced, D. incisive) to rest or trade spots with anyone else in the car. Although he was accustomed to sarcasm, Alex was not prepared for the comedian's biting,

    asked by marie

    Mg(s) + FeCl2(aq) → MgCl2(aq) + Fe(s). IS THE IRON(II) ION OXIDIZED?

    asked by JENNIFER
  8. computer programming

    Design the pseudocode for a program that allows a user to enter 10 numbers, then displays them in the reverse order of their entry

    asked by Marc
  9. Science HELP!!! FAST!!!

    24. Many people who care about conserving natural resources would choose to use wind energy to power their homes. However, wind power is not an option for people in many parts of the country. Explain what the benefits of wind power are and why it is not

    asked by Agala
  10. Algebra

    Sally can paint a room in 4 hours while it takes Steve 7 hours to paint the same room. How long would it take them to paint the room if they worked​ together?

    asked by Sydney
  11. History

    Please check my answers. Question 1(Multiple Choice Worth 5 points) [06.06 MC] Which answer best describes how the Supreme Court viewed Maryland's taxing of the national bank created after the War of 1812? The Supreme Court decided Maryland was within its

    asked by Anonymous
  12. Chemistry

    How much ethylalcohol must be added to 1litre of water so that the solution will freeze at 14 farenite, kf of wa ter is 1.86 c/mol

    asked by Ria
  13. Statistics

    A coin is tossed 7 times. What is the probability that the number of heads obtained will be between 2 and 4 inclusive? Express your answer as a fraction or a decimal number rounded to four decimal places.

    asked by Sadie
  14. science

    A solid weighs 100g in air,75g in water and 70g in oil.Calculate the relative density of oil.

    asked by Gauri
  15. math

    Jude's kayak is 10 feet and 2 inches long. Alexa's kayak is 29 inches longer. How long is Alexa's kayak?

    asked by kill
  16. Math

    Find two numbers a and b whose sum a+b is -1 and whose difference a−b is 5. I do not understand the question

    asked by Nathan
  17. Physics

    Sputnik, the first artificial satellite to orbit the Earth, had a mass of 83.6kg and travelled at 7574 m/s. The radius of the earth is 6371 km and its mass is 5.972 x 10^24 kg. What gravitational force did Sputnik apply to the earth during this orbit? What

    asked by Grace
  18. Math

    a net for each three dimensional figure would always have six congruent rectangular regions A. triangular prism b. rectangular pyramid c. hexagonal pyramid d. hexagonal prism

    asked by Please Help Me
  19. English help urgent

    Why are the outsides of the buildings in Philbert Place so darkened ? London weather is foggy.

    asked by Ella
  20. anatomy

    describe in detail how a lack of calcium ions would affect muscle contraction.

    asked by Aria
  21. Language Arts

    7. Which sentence uses the italicized word incorrectly? 1 The dragonfly (SKIMMED) the surface of the pond. 2 When Aunt Hazel was young, no girl would ask a (FELLOW) on a date.**** 3 The young boy (SKIMMED) his knee on the pavement. 4 That (FELLOW) is

    asked by Kaydence
  22. math

    3. The measure of angle A is 73 classify the angle as acute right obtuse or straight (1 point)

    asked by help me please
  23. maths

    A rectangular feild 15m long and 9m. Width it has apath 1.5m width all around it find the area of the path

    asked by suchitrs
  24. Physics

    A Ball of Mass 0.5kg Moving At 10m/s Collide With Another Ball Of Equal mass At Rest.If The Two Balls Move Together After The Impact Calculate Their common Velocity

    asked by Physics
  25. American Government

    Which of the following is an example of protections under the establishment clause of the first amendment? a. A father objects to his son's school including a daily prayer b. An Amish family objects to a law requiring schooling until age 16 c. Restrictions

    asked by Rox
  26. science

    Consider a point charge with q = 1.510-8 C. (a) What is the radius of an equipotential surface having a potential of 30 V? (b) Are surfaces whose potential differ by a constant amount (1.0 V) evenly spaced in radius

    asked by Swaran
  27. Math

    Lilla read 1/5 of her book last week. This week she read 3 times as much as she read last week. Write an expression to show how much of her book she has left to read. Then simplify the expression.

    asked by Caden
  28. Social Studies

    How did the attack of pearl harbor change the lives of many Americans? A. Americans were divided over how to respond. B. The American military was weakened by the attack.*** C. The Unites States declared war on Germany. D. Americans developed a wartime

    asked by EmberShy


    asked by JENNIFER
  30. Algebra

    Insert five geometric means between 0.125 and 8. I know one set is 0.25, 0.5, 1, 2, 4 What would be the other set?

    asked by Anonymous
  31. SS

    Immigrants who came to the united states in the 1800s, had which effect on the country? A:filled many jobs. B:created businesses. C:fueled expansion of the united states. D: all of the above. I think the answer is D. Thank you

    asked by Jaden

    1. what are the differences between white blood cells and antibodies? 2.why is HIV not detected immediately as foreign material once it enters our blood stream or white blood cells? 3.what is the enzyme used by HIV to convert RNA to DNA?

    asked by sophie
  33. Chemistry

    A 5.00g of sodium chloride is Dissolved m, exactly 250 mL calibrated volumetric flask, what is the molarity of the solution?

    asked by Dillan
  34. computer programming

    Design the logic for a program that allows a user to enter 10 numbers, then displays each and its difference from the numeric average of the numbers

    asked by Marc
  35. Science- Earth

    Under which circumstances do neap tides occur? HELP NEED ASAP!!

    asked by kat
  36. Chemistry

    calculate the change in ph for 1l of buffer solution containing NH4OH and NH4Cl upon addition of 1) 0.02 moles of HCl 2) 0.02 moles of NaOH I got the initial pH as 9.2504 But now Im stuck cus I dunno what happens when we add HCl and NaOH? Please help! :)

    asked by Isura
  37. Social Studies

    Toword the end of the Civil War, how did General Grant affect Southern civilians? A) He allowed those living in the South to keep their ownership of land B) He ordered his generals to impose a "total war" strategy on the South**** C) He ordered his army to

    asked by Sherlock
  38. math

    Make a conjecture and give a general term for this pattern

    asked by Bliezo
  39. Algebra

    Petra, who can paddle her canoe at a rate of 12 mph in calm water, is paddling her canoe on a river whose current is 6 mph. How long will it take her to travel 3 miles upstream against the current? Please help

    asked by Alissa
  40. History

    1. “… to overspread and to possess the whole of the continent which Providence has given us for the development of the great experiment of liberty and federated self-government entrusted to us.” –John O’Sullivan The quote above can be most

    asked by Parker
  41. math

    the bulletin board in Shain's classroom is 3 1/4 feet by 4 1/2 feet. what is the area of the bulletin board? is this right? 24 1/2 ?

    asked by Lindsey
  42. Physics Word Problem

    suppose a meteorite called head on with mars and becomes buried under mars surface. what would be the elasticity of this collision? explain your answer.

    asked by Anthony
  43. Math - Related Rates

    Air is being pumped into a spherical balloon at a rate of 2 cubic meters per minute. At what rate is the radius changing when the volume of the balloon is 36pi cubic meters?

    asked by Sophie
  44. Algebra

    You need to rent a moving truck for two days. Rider Moving Trucks charges $50 per day and $.50 per mile. UMove Trucks charges $45 per day and $0.75 per mile. Write an equation describing each situation. Graph them on the same xy axis. You only need

    asked by Sophie
  45. math

    find the measures of the complement and the supplement of an angle with measure 50 degrees

    asked by help me please
  46. math

    if secA=12/5 what is the value of A

    asked by Shamim Hossain
  47. Social Studies

    ”We took away their best lands; broke treaties, promises; tossed them the most nearly worthless scraps of a continent that had once been wholly theirs. But we did not liquidate their spirit. The vital spark which kept them alive was hardy." Based on

    asked by Anonymous
  48. Mayh

    Martin used apples to make muffins. Omar used apples to make applesauce. Omar used 5 fewer than half as many apples as Marrin used. Write an expression to show the number of apples that both used in all. What does variable represent?

    asked by Caden
  49. math

    name the angle that is supplementary to

    asked by help me please
  50. math

    Name the angle that is supplementary to

    asked by help me please
  51. math

    3.A rectangular prism has a width of 92ft and a volume of 240ft.Find the volume of a similar prism with a width of 23ft.Round to the nearest tenth, if necessary. 4.A pyramid a height of 5in. and a surface area of 90in^2.Find the surface area of a similar

    asked by anndreana
  52. Maths

    The sum of first 7 terms of an ap is equal to the sum of its first 13 terms . find the sum of its ist 20 terms

    asked by Kashav
  53. Derivative-Optimization Problems

    You plan to enclosed part of a rectangular farmland with a fence. Since one side of it is bounded by a river, you only need to fence the other three sides. if you have enough budget to buy 600m of fencing material, what is the largest area you can enclose?

    asked by Liv
  54. Science

    How did Rutherford come to the conclusion that most of the space in atoms is empty?

    asked by Nnek hahs
  55. Book comphrension

    In the book thief, how is Liesel Meminger affected by the war?

    asked by Andrea
  56. Algebra

    9/4% of what is 9?

    asked by Jennifer
  57. Algebra

    A gigabyte memory is ___ or ___ times larger than a kilobyte. I know that a gig (G) is 10^(9) & kilo (k) is 10^(3)

    asked by Nicole
  58. Algebra

    Sal Boxer divided a gift of $6000 into two different accounts. He placed $2000 in one account that earned an annual simple interest rate of 8.5%. The remaining money was placed in an account that earned an annual simple interest rate of 9.25%. How much

    asked by Alissa
  59. Algebra

    Jameston High School has 2020 students. Its enrollment has been decreasing at a rate of 125 students per year. Townsville High School has 1075 students. Its enrollment has been increasing at a rate of 80 students per year. Assuming the enrollment rates

    asked by Anonymous
  60. Math

    Construct an isosceles triangle PQR in which PQ = PR, base QR = 5.6 centimetres, angle PQR = 75 degrees using a ruler and a pair of compasses. Draw its lines/line of symmetry.

    asked by Harry
  61. Math

    Country A has a population of 102.4 million people and total land area of about 150.7 thousand square miles. What is the population density (the # of people per square mile?

    asked by Josh
  62. Chemistry

    What mass of solute is needed to make the following solutions: 0.238 M FeCl3 solution in 1000. mL of solution.

    asked by Emily
  63. Algebra

    Find the first four terms of the sequence represented by the expression. 3n+5

    asked by Parker
  64. Algebra

    A 29 horsepower lawn tractor sells for $1599.99 This is 12% more than the price of the same lawn tractor with a standard transmission. What is the price of the less expensive model?

    asked by Jennifer
  65. maths

    Find two natural numbers in ratio 5:7 such that their 120

    asked by sanjay
  66. Science

    How are the primary pigments related to the primary colors? The primary pigments are: A. Complementary to the primary colors B. Associated with the primary colors C. Unrelated to the primary colors

    asked by Anonymous
  67. biology

    if you want to make 50 ml of a 1x TAE solution fro a 50X stock, how would you prepare it?

    asked by anonymous
  68. Engineering

    When we drive our car at 110 feet per​ second, we measure an aerodynamic force​ (called drag) of 61 ​pounds-force that opposes the motion of the car. How much horsepower is required to overcome this​ drag?

    asked by logan
  69. Algebra

    I do not understand this problem axbxaxb= The answer I put is ab squared. Is that correct?

    asked by Uel
  70. biology

    if you have 1.0*10^9 molecule in tube and perform a 10^-7 dilution, how many molecule will in the new tube?

    asked by anonymous
  71. chemistry

    calculate the volume of hydrogen that will combine with 40 litres of oxygen to form steam at 150°C and atmospheric pressure?

    asked by lokeswari
  72. Anatomy

    What consequence would an over abundance of acetylcholine have both overall and at the molecular level of the muscle?

    asked by Aria
  73. Differential equations,Calculus

    So I have the following differential equation. The general solution I have is: t=k(-1/r)+c I now need to find the particular solution when t=0 and the radius (r) = 1cm. So k is a constant which is approx 3.9 (5/4pi) So for the particular solution im really

    asked by Anon
  74. maths

    a rectangular field is 15m long and 10m wide the otherrectangular field having same perimetre has its sides in the ratio 4:5 find the dimension of the second field

    asked by siddhant
  75. physics

    the human body can survive a negative acceleration trauma incident if the magnitude of the acceleration is 250m/sq. s. If you are in an automobile accident with an initial velocity of 29.17 m/s and are stopped by an airbag that inflates from the dashboard,

    asked by judel
  76. Precal

    Find the $2 \times 2$ matrix $\bold{A}$ such that \[\bold{A} \begin{pmatrix} 1 \\ 0 \end{pmatrix} = \begin{pmatrix} 1 \\ 2 \end{pmatrix}\] and \[\bold{A} \begin{pmatrix} 0 \\ 1 \end{pmatrix} = \begin{pmatrix} -7 \\ 4 \end{pmatrix}.\]

    asked by Zheng
  77. social science

    which places or countries are located at 20 degrees south and 20 degrees east?

    asked by alina
  78. Social Studies

    which of these was a primary difference between the republic and the empire? a.More people could be citizens in the republic. b.Religious freedom was greater during the empire. c.Rome established colonies only during the empire. d.Political power was less

    asked by Herllo
  79. Math

    Felisa will carpet her rectangular living room shown below. The carpet she selected is sold by the square yard, at a cost of $32 per square yard. To the nearest dollar, how much will it cost to carpet the living room?

    asked by Anonymous
  80. Introduction to small engines

    The distance the piston must travel from TDC to BDC is referred to as the of the engine

    asked by Aaron
  81. Vocabulary

    Choose a vocabulaty from the list and pay attention to the tenses used. In some cases, you may have to use the opposite form or different parts of speech of the vocabulary. Vocabulary List: 1.official 2.bruise 3.atmosphere 4. pitch 5. golden snitch

    asked by deyond ng
  82. math

    a man bought 360 eggs at rs 12 per dozen. 60 eggs were broken and 30 were rotten. find his profit and loss percent . if he sells the rest of the eggs at rs 15 per dozen.

    asked by abc
  83. Maths

    Prove that Log9 cube divided by 4 cube = log2

    asked by Gopa Dhar Choudhury
  84. Science

    How do the spaces between particles affect viscosity?

    asked by Anonymous
  85. math help asap

    For the data in the table does y vary directly with x? if it does write an equation for the dorect variation. x;y 10,15 16,24 20,30 a:yes; y=1.5x b:yes;y=2x c:yes;y=x+5 d: y does not vary directly with x if you are from connections and know any other

    asked by anon
  86. Math

    Rod is 6feet tell he casts a 3-foot-long shadow at the Same time a tree casts an 8-foot-long shadow what is the height of the tree

    asked by Lizbeth
  87. Álgebra

    Matt cut a circle into 8 equal sections. He drew an angle that measures the same as the total measure of 3 of the sections in the circle. What is the measure of the angle Matt drew?

    asked by Isabella
  88. Math

    Consider a number. Greater than 2 which do you think is larger, the sum if you add a number to itself 10 times, or the product if you multiply the number by itself 10 times? Explain

    asked by Mia
  89. Math

    If a recipe calls for 4 eggs for 8 people how many eggs would it be for 32 people

    asked by Angel
  90. Chemistry

    the lead (II) nitrate in 25.49 ml of a 0.1338M solution reacts with all of the aluminum sulfate in 25.00 ml solution. What is the molar concentration of the aluminum sulfate in the original aluminum sulfate solution?

    asked by CL
  91. Physics

    A stone is thrown vertically upward with the velocity of 49.0 m/s. (a) how high will it travel before it starts to fall? (b) how many seconds will it take the stone to reach the highest point?

    asked by Angelo
  92. Math

    Find a formula for D^n_x(1/x). (The n is superscript and the x is subscript)

    asked by Anonymous
  93. Physics

    Davi Kent caldoza is riding the Giant Drop at great America. If Davi Kent free falls for 3.6 seconds, what will be his final velocity and how far will he fall?

    asked by Angelo
  94. Algebra I

    Scott wants to make 6 gal of a 50% sugar solution by mixing together a 60% sugar solution and pure water. How much of each solution must he use? mixture 1 @ 60% = x gallons pure water = 100% - x (??? that's my that correct? or is it 0?)

    asked by Cale
  95. Math

    Just need help to start this problem. Given f(x)=x^3+3x+1 is one to one. Without actually determining the inverse function f^-1, compute the following (show and discuss your work. f^-1(-3)

    asked by Mekhia
  96. Math Derivatives

    Find f''(2) of function f(x)=xsin(pi/x)

    asked by Anon
  97. math

    Find the cost of buying 4 dozen of exercise books at sh 6000 per dozen,a half dozen of pencil at sh 2050 per dozen,5 dozen rulers at sh 3600 per dozen #i need anyone to help me please# and in case someone know where i can get such the questions,i am kindly

    asked by kelvin
  98. Math

    Use the table of values. x y -2 -5 0 -1 1 1 2 3 A. Graph the ordered pairs. B. Is the function linear? Explain. C. Write a rule for the ordered pairs in terms of x and y. D. What is the value of y when x = 10?

    asked by Anonymous
  99. Math

    Pawan is twice as old as ruby . 3years ago he was 3 times as old as ruby .how old is pawan now

    asked by Sushma more
  100. math

    if one sixth of a number is added to one eighth of the same number, the result is 35. find the number?

    asked by Sandra
  101. math

    Dallas was given a discount of 10 percent of the following items: 1/1/4 cartons of exercise books @ sh 42000 per cartons,ten cartons of pens sh 22000 each.How much did he pay all together after the discount of 10 percent? *I need anyone to help me please*

    asked by kelvin
  102. Book comphrension

    In the book thief, how is Liesel Meminger affected by the war?

    asked by Andrea
  103. maths

    using a ruler and a pair of compass only. Construct ABC such that angle ABC=90°,AB=5cm and BC=6cm.Measure AC

    asked by Helena
  104. Calculus

    Kayla claims that she can find an approximate value for sin 1o without using a machine to do any computations. Explain or show how she can do this (Hint: if you choose to explain the process, please be very specific. If you choose to show how it is done,

    asked by Demi
  105. Algebra

    given two consecutive integers. The sum of three times the first integer and four times the second integer is 95. Find the integers

    asked by MOnica
  106. Biology

    A life cycle in which organisms switch back and forth between diplid and haplid stages?

    asked by Anonymous
  107. American Government

    Why is the right to petition important? a. Citizens do not have many other ways to make their voices hear in a democratic country b. It is the preferred way for citizens to have their voices heard in an absolute government c. It is an important option for

    asked by Rox
  108. Math/Calculus

    Find the equation of the tangent line to the given equation at the indicated point a) y^2=cos(5x-3y) at ((2pi+3)/5, 1) b) x^2+x^2y+4=0 at (2,-2)

    asked by Anonymous
  109. Math

    Graph y = -2X an y = -Xsquared what points do the graphs have in common? How are they different?

    asked by Kaity Bear
  110. ss

    Where was the declaration of independence signed?

    asked by Maya
  111. math

    the sex of to domain species is unknown but they each have a probabilty of X and -5 what does x equal and waht is the domain species? Plz someone help me dont give me the answer just plz explain the procees of theis to me i have no clue where ot start

    asked by carry on
  112. keshavareddy schoolphysics

    a body is released from the top of the tower Hmetres high. It takes t seconds to reach the ground .where is the body t/2 second after release

    asked by pranitha
  113. maths

    two poles 6m and 15m tall are 20 m apart a wire is attached to the top of each pole and is also staked to the ground some where b/n two poles where should be the wire be staked so that the minimum amount of wire be used?

    asked by Dd
  114. Social Studies

    Why were Whig Congressman angry about the war? What did they accuse Polk of? Plz help

    asked by tatiana
  115. Math

    Can someone explain how to solve this equation using each step? I'm confused. (2^8⋅5^−5⋅19^0)^−2⋅(5^-2/ 2^3)^4⋅2^28

    asked by CCB
  116. value

    What are the reasons for olympic games to be largest sport events?

    asked by value
  117. Educational Technology

    why is it important to take responsibility for your online publication (1 point)

    asked by Anonymous
  118. geometry

    A tourist is standing in the center of a roof 1000 feet skyscraper wants to a photo of the top of the adjacent skyscraoer that is 1500 feet tall what is the angle of elevation from the tourist to the top of the skyscraper to nearest yenth

    asked by sheila
  119. ss

    9. The economies of the United States and Canada are (2 points) very different. strongly linked. dependent on tourism. exactly the same.

    asked by Anonymous
  120. Math

    How many cubes with 1/4-inch side lengths will fit in a 87 1/2 if they are packed with no gaps?

    asked by Cindy
  121. Science

    Describe th flow of blood in the human body, including through each of the four chambers of the heart. Explain how the blood changes as it moves on locations in the body i have been stuck on this for almost 3o minutes i need help :)

    asked by Bill Shrum
  122. Math

    Hello everyone. I have a math problem that I need a bit of help with please. Ava wants to ride the Rip Ride Rocket roller coaster at Universal Studios. She knows that she has to be at least 40 inches tall. If h represents the height of the children that

    asked by Patrick
  123. Algebra

    2. You have $80 and your brother has $275 dollars. You save $10 of your allowance each week. Your brother spends his allowance plus $15 each week. A. Write an equation to model this. B. How long before you have as much money as your brother? C. How much

    asked by Anonymous
  124. Math

    How many cubes with 1/4-foot side lengths will fit inside 77ft3 if they are packed with no gaps

    asked by Cindy
  125. SS

    After the Civil War, many settlers who migrated likely went? 1) to Canada 2) to the South 3) to the West 4) to Maine

    asked by Jaden
  126. Literature

    Hi! So I need help describing someone with heterochromia, for a third-point-of-view fictional story. Thanks for your help!

    asked by Vivian
  127. Math

    The most Gabriel has ever earned delivering newspapers is $43 in one day. Write an inequality showing the amount Gabriel earns delivering newspapers.

    asked by Aliana
  128. Grade 7 math

    Bob currently has $1,000 in a saving account he saves $25 per month he saves the same amount each month and does not take any money out of the account and how many months will boris have 1,450

    asked by Spy girl
  129. social studies

    In which of the following ways did the 1920s wealth gap contribute to the start of the Great Depression. A. The wealth gap led to a decline in stock investment during the 1920s B. A concentration of wealth led to less spending across the economy C. Many of

    asked by Taryn
  130. Algebra

    If $4 can be exchanged for $113.72 in Russian Rubles, how many Russian Rubles can be obtained for $1100 ?

    asked by Sydney
  131. Physics

    write an equation that relates to frequency(f) applied to the string to the length(L) between the two fixed end points. This was from lab of standing waves.

    asked by kailey
  132. Math

    You have $80 and your brother has $275 dollars. You save $10 of your allowance each week. Your brother spends his allowance plus $15 each week. A. Write an equation to model this. B. How long before you have as much money as your brother? C. How much have

    asked by Anonymous
  133. physics

    The pitcher throws a pitch from the mound toward home plate 18.4m away. The ball is released horizontally from a height of 1.8m with a velocity of 32m/s. Find the height above ground when it gets there.

    asked by charlee
  134. Algebra

    Not sure how to do this problem need a little help at least to start. If h(x) = 1/(x+3)^3 then determine f(x) and g(x) such that h(x) = (f of g)(x).

    asked by Nicole
  135. math

    you want to use a square section of your yard for a garden. You have at most 52 feet of fencing to surround the garden. write and solve an inequality to represent the possible lengths of each side of the garden. Math - Dylan, Tuesday, March

    asked by Sweg Man Jones
  136. Chemistry

    Find the pH of a buffer solution with equimolar concentrations of: HCOOH and NaCOOH (Ka = 3.5 x 10-4 for HCOOH)a

    asked by Bill
  137. Biology

    What is the reaction that creates polysaccharides? What covalent bond forms between 2 sugars? Which is the main group involved in this bond formation? I've been reading my book for hours and I can't find the answer to this

    asked by Bree
  138. Chemistry

    Find the ratio of the volumes of NaC3H5O3 soloution to HC3H5O3 (lactic acid) required to prepare a buffer with a pH of 3.90. the solutions are equal in molarity. Ka = 1.4 x 10-4 for HC3H5O3. ratio = ________ mL of NaC3H5O3 per mL of HC3H5O3

    asked by Bill
  139. science

    1. When Mendeleyev arranged the elements into the periodic table, he found that elements with fell into groups on the table A. the same mass B. similar size C. Similar properties D. The same color 2. Every element has its own atomic number. The atomic

    asked by Help me
  140. Chemistry

    Compound A consisting of carbon and hydrogen only. The compound was found to contain 80% carbon by mass,cal. its empiri.

    asked by Mverve Edwin, SP
  141. Math. Fair race project help!

    Animal one: coyote Max speed: 43 mph Anime two: elk Man speed: 45 mph Rough draft: d= distance in miles T= time in hours. Coyote: d=43t Elk: d= 45t Final draft: Animal ones fair race equation:? Animal two fair race equation:? Please help!

    asked by Thanks