Questions Asked on
February 3, 2015

  1. Language Arts

    Which is the best paraphrase of these lines from"New World"? eagles/hie and/hover/above/the plain A. Eagles hurry and hang above the flatland. B. Eagles hang in midair and wave their wings C. Eagles race and rush in an ugly way D. Eagles soar and swoop in

    asked by Callie
  2. Math( PLease help Ms. Sue)

    Use the figure shown to complete each of the following questions. 1. ∠QTR and ______ are complementary. ∠QTS ∠RTS ∠PTN ∠QT 2. ∠QTN and _____ are supplementary. ∠QTS ∠QTP ∠RTS ∠PTR 3. If ∠PTQ measures 29°, then PTN measures _____.

    asked by Josslyn
  3. Computers

    1. What does the term "fair-use exception" mean? (1 point) to use only material that has never been published the ability to use material made by others for educational purposes an exception to copyright restrictions for images only Educational material is

    asked by Andre
  4. Math

    Name the solid according to its description: The figure has two bases that are parallel congruent circle. A. Cylinder B. Rectangular prism C. Sphere D. Cone Is the answer A? Thank you

    asked by Callie
  5. Math

    Identify the solid formed by the given net. The middle and a triangle on each edge of the middle triangle. A. Triangular prism B. Triangular pyramid C. Cone D. Triangle Is the answer B? Thank you

    asked by Callie
  6. social studies

    Why did the Jews feel entitled to claim Israel as their nation following World War 2 A) They had no place else to go B) They believed that God had promised them this land C) They had military strength to hold the land D) The United Nations had given them

    asked by Abby
  7. Science

    Suppose the total momentum of two masses before a collision is 100 kg m/s. What is the total momentum of the two masses after they collide? A. 0 kg m/s B. 50 kg m/s C. 100 kg m/s D. 200 kg m/s Is the answer D? Thank you

    asked by Callie
  8. math

    an average person's heart beats about 103, 680 times a day. write and solve an equation to find about how many times the average person's heart beats in a minute

    asked by poop
  9. chm

    An aqueous solution that is 10.0 percent sulfuric acid (H2SO4) by mass has a density of 1.143 g/mL. Determine the molality of the solution. ( 3 significant figures)

    asked by tyler
  10. math

    Use the circle graph shown below to answer the question 42% =football 25% =soccer 33% =baseball If 210 people said football was their favorite sport to watch how many people were surveyed?

    asked by Cheerbear
  11. Two English Questions (HELP!!)

    1. Which of the following uses a pronoun in the possessive case? A. Ask Sarah to pass the chips to me. B. Check for my signature on the front page. C. He went to the park to find the dog. D. The winner of the contest was she. I think 1. is B. 2. Revise the

    asked by *
  12. science 1 question

    In which way does the circulatory system rely on the skeletal system? A. Glucose is secreted by compact bone as an energy source for blood. B. Spongy bone stores minerals needed by blood cells. C. Bones provide a source of oxygen to blood. D. Blood cells

    asked by SkatingDJ
  13. Science

    Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s? A. A 71 kg lion running at 10 m/s. B. A 45 kg zebra running at 13 m/s. C. A 5,000 kg elephant walking at 1 m/s. D. A 61 kg zebra running at 8.0 m/s. Is the answer C?

    asked by Callie
  14. English

    revise the following sentence so it uses a pronoun in the objective case I took the book from Ian. a. Ian handed the book to me b. He handed the book over c. I took his book d. We exchanged books

    asked by BUBBLES
  15. English

    Which word in this sentence is a personal pronoun in the objective case? We know two tour guides, and they gave us a tour themselves. We they us themselves

    asked by BUBBLES
  16. math

    show three ways to estimate 3/5 x 9 1/2.identify each method you use.

    asked by LAKSHMI
  17. English

    In "January" what does the speaker mean by the image in the following lines? The sun a spark Hung thin between The dark and dark. a. The sun barely shows behind the dark clouds b. The sun sends off thin sparks in the night c. The sun appears for only a

    asked by BUBBLES
  18. Science

    Jellyfish sometimes squeeze the sides of their bodies. This pushes a stream of water from the back end of their bodies. According to Newton's third law of motion, how will this behavior affect the movement of the jellyfish? A. The jellyfish will move

    asked by Callie
  19. math

    Which one of the following statements is true? If f is continuous on (a, b), then f attains an absolute maximum value and f attains an absolute minimum inside the interval (a, b). If f '(x) > 0 on the interval (a, b), then f is decreasing on the interval

    asked by Mark
  20. English **One Question**

    In a sense we have come to our nation's capital to cash a check. When the architects of our republic wrote the magnificent words of the Constitution and the Declaration of Independence, they were signing a promissory note to which every American was to

    asked by Don
  21. English

    Which phrase from the lines helped you identify the correct answer to the previous question? A.The sun B.a spark C.Hung thin D.and dark I think its B

    asked by .Vee
  22. math

    You have 15 pennies in your pocket, 3 are Canadian. You pick aenny out of your pocket at random. FInd p (not Canadian)

    asked by Anonymous
  23. English

    Which of the following sentences uses a pronoun in the possessive case? a Ask Sarah to pass the chips to me b Check for my signature on the front page c He went to the park to find the dog d The winner of the contest was she A?

    asked by BUBBLES
  24. General Chemistry

    1,When aqueous sodium hydroxide is added to a solution containing lead(II) nitrate, a soHowever, when additional aqueous hydroxide is added the precipitate redissolves forming a soluble [Pb(OH)4]2–(aq) complex ion.lid precipitate forms. 2,The Ksp of

    asked by jay adams
  25. Chemistry

    The coinage metals -- copper, silver, and gold -- crystallize in a cubic closest packed structure. Use the density of gold (19.3 g/cm3) and its molar mass (197 g/mol) to calculate an approximate atomic radius for gold. Work So Far:

    asked by Caroline
  26. English

    Which of the following sentences uses a pronoun in the possessive case? a Ask Sarah to pass the chips to me b Check for my signature on the front page c. He went to the park to find the dog d The winner of the contest was she I have C?

    asked by .Vee
  27. English

    Which is the best paraphrase of these lines from "New York"? eagles/ hie and/ hover/ above/ the plain a. Eagles hurry and hang above the flatland b. Eagles hang in midair and wave their wings c. Eagles race and rush in an ugly way d. Eagles soar and swoop

    asked by BUBBLES
  28. social studies

    if you wanted to catch a rain shower while visiting Israel, Where would you most likely visit 1)Southern Israel 2) east of Jordan river 3) The dead sea 4) The Mediterranean sea

    asked by Abby
  29. Physics

    A particle leaves the origin with an initial velocity of 4.90 m/s in the x direction, and moves with constant acceleration ax = -2.70 m/s2 and ay = 3.90 m/s2. How far does the particle move in the x direction before turning around? What is the particle's

    asked by Anh
  30. Science

    What is the momentum of a 20.0 kg scooter traveling at 5.0 m/s? A. 4.00 kg m/s B. 20.0 kg m/s C. 25.0 kg m/s D. 100 kg m/s Is the answer D? Thank you

    asked by Callie
  31. English

    In which situation are you most likely to use the word tongue? a translating a book from German to English b writing an ad for a new business c carrying some groceries into your home d driving in a car to the store I say A

    asked by BUBBLES
  32. Chemistry

    The temperature of an object increases by 44.9 °C when it absorbs 3871 J of heat. Calculate the heat capacity of the object.

    asked by Samantha
  33. Physics- Start off good?

    Estimate the moment of inertia of a bicycle wheel 67 cm in diameter. The rim of the tire have a combination mass of 1.1kg. (1.1)(67) = 73.3

    asked by Ray
  34. math

    Suppose you are exchanging currency in the London airport. The currency exchange service there only makes transactions in which one of the two currencies is British pounds, but you want to exchange dollars for Euros. Thus you first need to exchange dollars

    asked by Anonymous
  35. Science

    According to Newton's third law of motion, if a rolling ball collides with a wall and exerts a force of 3 N on that wall, how much force does the wall exert back on the ball? A. 0 N B. 3 N C. 6 N D. 9 N Is the answer b?

    asked by Callie
  36. English

    in which hobby would you most likely know about the word pollen? A.Fencing B.knitting C.gardening D.bowling

    asked by Help plz
  37. Chemistry

    How much ethylene glycol (C2H6O2, the major component of antifreeze) must be added to 1 L of water to keep it from freezing at -20 oC? Kf = 1.86 oC/m.

    asked by Sheila
  38. physics

    a metal object is suspended from a spring balance scale. the scale reads 800 N when it is suspended in air and 700 N when the object is completely submerged in water. find the buoyant force, the volume and the density of the metal.

    asked by ryan
  39. linear algebra

    Find the inverse of A = [−5 2 2; −3 1 1; −9 3 4]

    asked by hannah
  40. math

    a bean plant grows 15% of its height each day, after 10 days the bean plant is 27 inches tall. how tall was it yesterday?

    asked by Anonymous
  41. physics

    Three vectors, expressed in Cartesian coordinates. What is the angle of the resultant vector S, T, U measured from the positive x axis? x-comp y-comp S -3.5 +4.5 T 0 -6.5 U +5.5 -2.5 To find the resultant, i'm assuming I have to add the columns up. If

    asked by heylo
  42. Physics/Math

    A 25.0 gram piece of charcoal is found in some ruins of an ancient city. The sample shows a 14C activity, R, of 250 decays/min. How long (in years) has the tree this charcoal came from been dead? I think I have the use the equation: R=lamda*No*e^(-lamda*t)

    asked by Kristina
  43. Accounting

    Complete the following exercise. In December 20X2, the Cardoso Company established its predetermined overhead rate for jobs produced during the year 20X3 by using the following cost predictions: Overhead costs: $750,000 Direct labor costs: $625,000. At

    asked by Jane
  44. Chem Uni. Urgent!!!

    Have to find theoretical yield of recrystallization of acetanilide from water. 1 gram of crude product used (85% acetanilide, 14% Sodium chloride and 1% charcoal) I got 0.50 grams of purified product. With percent recovery of : (0.50g/1.00g)* 100% = 50%.

    asked by Joshua
  45. English LAST 1. (:

    It's about MLk I Have A Dream speech. Why does King use the rhetorical technique of parallel structure in his speech? A)to show that he is aware of the time that has passed B)to show that others are not aware of the time that has passed C)to show that two

    asked by Don
  46. chemistry

    1. Write the electron configuration for each atom or ion. Then explain the distribution of electrons among energy levels. Ca, Be2+, and Br- I already found the electron configurations but I don't understand the second part of the question.(Then explain the

    asked by Morgan
  47. Physics

    A flat disk 1.0 m in diameter is oriented so that the plane of the disk makes an angle of pi/6 radians with a uniform electric field. if the field strength is 589.0 N/C, find the electric flux through the surface. I know that Flux=(integral)|E|cos(theta)dA

    asked by Harry
  48. Physics Coulombs Law

    A proton is at the origin and an electron is at the point x = 0.45nm , y = 0.38nm . Find the electric force on the proton. Fx , Fy = N How do I go about solving these 2 problems?

    asked by Anonymous
  49. physics

    A 98.0 kg ice hockey player hits a 0.150 kg puck, giving the puck a velocity of 49.5 m/s. If both are initially at rest and if the ice is frictionless, how far does the player recoil in the time it takes the puck to reach the goal 13.5 m away?

    asked by alex
  50. chemistry

    How to test calcium nitride.? ( ca3n2) when calcium reacts with nitrogen , Calcium nitride is formed. How can we test that the product formed is calcium nitride?

    asked by saurav
  51. Science

    Which of the following describes the relationship between friction and inertia? When there is more friction, there is less inertia. When there is less friction, there is more inertia. When there is more friction, there is more inertia. When there is no

    asked by Callie
  52. physicsss

    An oxygen molecule consists of two oxygen atoms whose total mass is 5.3 x 10^-26 kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is 1.9 x 10^-46 kg*m^2. Estimate, from these data, the

    asked by may
  53. chemistry

    I am having some chemistry problems. 3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10), and the Na++ ion (Z = 11). (the graph shows F having an Orbital Energy of 692.45, Ne+ with 47.74, and Na++ with 33.52) a. How

    asked by Morgan
  54. math

    What are the two positive integers whose sum is 200 and whose product is a maximum?

    asked by Mark
  55. math comparing fractions

    James says that 5/5 is greater than 9/10 is he correct

    asked by Maddi
  56. Geometry B

    What is the value of x in the proportion: (x-1)/5 = (4x + 2)/35 How do I go about getting this solved?

    asked by Sandra
  57. Math

    I'm really confused on these two. Can someone help explain this to me? Thanks! :) 1.) What values of u are not permissible in the expression csc(u)tan(u)? 2.) What values of u are not permissible in the expression sin(u)cot(u)?

    asked by Whitney
  58. Math

    1. The set of ordered pairs of the form (x,y) shown below represents points on a graph for a direct variation. (−4,6) (−1,−1.5) (0,0) (2,3) (6,9) Which equation best represents the relationship? A. y=3/2x B. y=2/3x C. y=x-2 D. y=x+3 Should I just

    asked by Tia
  59. Chemistry due soon

    I am having some chemistry problems. 3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10), and the Na++ ion (Z = 11). (the graph shows F having an Orbital Energy of 692.45, Ne+ with 47.74, and Na++ with 33.52) a. How

    asked by Morgan
  60. Physics

    A .70 m tall barrel is closed on top except for a thin pipe extending 5.3m up from the top. When the barrel is filled with water up to the base of the pipe the water pressure on the bottom of the barrel is 6.9 kPa.

    asked by Delaney
  61. Math - Answer Check

    Determine whether the polygons are similar. ABCD with vertices A(–5, 4), B(–2, 4), C(–2, 2), D(–5, 2) and EFGH with vertices E(–2, 0), F(4, 0), G(4, –6), H(–2, –6) They aren't similar, right?

    asked by Anonymous
  62. College Algebra

    A grocer mixes peanuts that cost $1.49 per pound and walnuts that cost $2.69 per pound to make 100 pounds of a mixture that costs $2.21 per pound. How much of each kind of nut did the grocer put into the mixture?

    asked by Monica
  63. SPANISH

    This question tells us to answer if the children bahaved good or bad from the paragraph below. Todos los niños le regalaron a Ana muchas cosas fantásticas. Había muñecas, juguetes, animales de peluche … y más cosas. Susana le regaló un oso de

    asked by Carl
  64. physics

    Can the gravitational potential energy of a baseball ever be negative? Yes No Explain without using a formula.

    asked by mathew
  65. Chemistry

    Benzene has a vapor pressure of 183 mm Hg at 40 degrees Celsius. Taking it's heat of vaporization to be 30.8 kJ/mol, calculate it's vapor pressure at 25 degrees Celsius. The answer is 101 mm Hg, but I keep getting 4.613, and I can't figure out where 101 mm

    asked by Jessica
  66. Physics electric field

    A -1.5μC charge experiences a 10i^−N electric force in a certain electric field. What force would a proton experience in the same field? My answer of Fx= 4.17 *10^-13 N is wrong. What am I doing wrong? How do I get the correct answer?

    asked by Anonymous
  67. Math-ratios

    Mary saved $44. On Thursday, she spent $7 of her savings. what ratio represents the portion of her total savings that she still has? I know she has $37 left but I don't understand what ratio it would be.

    asked by G
  68. Physics

    A charge of 8.0 x 10^(-6) is located inside a sphere. What is the flux through the sphere? Im not sure if this would be just the charge over elipson0. it seems to easy...

    asked by Brad
  69. algebra

    A gym has an enrollment fee of $80 and a $25 fee per month of membership. Write an expression to represent the total cost of m months of membership?

    asked by Holly
  70. Math Homework

    I'm really confused on how to do this. Can someone show me step by step on how to solve this? The directions say to use the Sum-to-Product formulas to find the exact value of the expression. sin 5pi/4-sin 3pi/4

    asked by Rachel
  71. physics

    when two lenses of focal length +10cm and -5cm are placed in contact then find the net power ?

    asked by Raj Mohan Jha
  72. Check Answers (Math)

    1. Which binomial is a factor of x^3-3x^2-28x? A. x-4 B.x^2-4 C.x-7*** x^2-7 2. A company's profit is described by the equation. P(x)=-5^2+300x+15,000. Where x is the price in dollars that the company charges for its product. What should the company charge

    asked by Tia
  73. algebra

    Zimak bought 3 xylobars and 5 yackities from the Intergalactic Candy Store for $1.75. Jeejuju paid $1.88 and got 4 xylobars and 1 yackity. How much would Dado pay for 1 xylobar and 2 yackities?

    asked by Anonymous
  74. physics

    A 40-N box is suspended in the ceilingusing two ropes . Each ropes makes an angle of 45° with the vertical . How much is the tension in each rope?

    asked by cristine
  75. math

    What is the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y = 12 - x^2?

    asked by Mark
  76. physics Electric force

    session.masteringphysics. com/problemAsset/1256632/2/RW-20-43.jpg In the figure take q1 = 69μC , q2 = -30μC , and q3 = 16μC. Find the electric force on q3. Fx, Fy = N . How do I solve this problem?

    asked by Anonymous
  77. Physical Science

    Identify these functions galvanometer step-up transformer electric motor generator electromagnet step-down transformer commutator

    asked by Lindsey
  78. Chemistry

    Cola drinks have a phosphoric acid content that is described as `from 0.057% to 0.084% of 75% phosphoric acid, by mass." Estimate the pH range of cola drinks corresponding to this average range of H3PO4 content. I am having trouble with the wording of this

    asked by Ken
  79. Math

    Hello again! You might see me a lot today. Just a heads up. 1. Which function represents an initial population that increases 22% per year where A represents the initial value and X represents time in years? A. Y=A(0.22)^x B. Y=A(0.68)^x C. Y=A(1.22)^x D.

    asked by Tia
  80. MATH

    THE FIRST AND LAST TERMS OF AN ARITHMETIC SERIES IS 5 AND 61 RESPECTIVELY WHILE THE SUM OF ALL THE TERMS IS 957. DETERMINE THE NUMBER OF TERMS IN THE SERIES.

    asked by CLARENCE KHUMALO
  81. Chemistry

    Calculate the amount of heat required to heat a50kg sample of ethanol from 13.0∘C to 18.0∘C Specific heat capacity of ethanol is 2.42 J/g∘C.? Please help

    asked by Eduardo
  82. Math

    Draw a velocity vector to represent the following (1cm represents 10km/h): a) a girl running around a circular track travelling at 15km/h heading due east. In the solutions, it shows it heading south, why is that?

    asked by Donna
  83. math

    If A Bicycle Wheel Has A Diameter Of 27 Inches, Find The Radian Measure Of The Angle Through Which The Wheel Turns As The Bicycle Travels A Distance Of 1 Mile

    asked by Anonymous
  84. math

    Given that OA = 3i – 2j + k and OB = 4i – j – 3k. Find the distance between points A and B to 2 decimal places.

    asked by kudu
  85. science

    In a water tank,on throwing a stone 20 full ripples are produced in 1 sec.the distance a crest and a through is 10 cm.calculate: (a) the wavelength of ripple (b) frequncy of ripple (c) velocity of the ripples.

    asked by saurav
  86. Earth Science

    1.   What term is used to describe the process by which agents are carried from one place to another because of erosion?  A. Disposition B. Deposition C. Reposition D. Transplantation B?

    asked by Sarah
  87. physics

    Tarzan is running towards a cliff, ready to swing down rescue Jane from some poisonous snakes, and make it back up to a tree on the other side. For now, we are going to assume energy is conserved and ignore momentum. If the height of the cliff is 10m, the

    asked by carolyn
  88. chm

    What is the vapor pressure (in mmHg) of a solution containing 16.0 g of (3 marks) glucose (C6H12O6) in 80.0 g of methanol (CH3OH)? The vapor pressure of pure methanol at 27 °C is 140 mm Hg. If the experimentally determined vapor pressure is 128 mm Hg,

    asked by jonny
  89. math

    Does a machine that takes one quarter at a time into its input and produces one gumball in its output act like a function? my guess is YES

    asked by Elena
  90. math

    Mohan and Sohan went to a bakery shop. Mohan bought 6 puffs, four burgers and three cakes and used up all the money he had. Sohan bought three puffs, eight burgers and six cakes and spent 20% more than Mohan. What percent of his money did Mohan spend o

    asked by nisha
  91. Math

    Randy had a sheep that started eating more and more as each day passed. on the first day, Tandy's sheep ate 5 carrots. On the second day, Randy's sheep ate 11 carrots. On the third day, the sheep ate 18 carrots. And on the fourth day, the gluttonous sheep

    asked by Erika
  92. Physics Field Strength

    An electron experiences an electric force of 0.75 nN. What's the field strength at its location? E= N/C How do I solve this problem?

    asked by Anonymous
  93. chm

    An aqueous solution that is 10.0 percent sulfuric acid (H2SO4) by mass has a density of 1.143 g/mL. Determine the molality of the solution. ( 3 significant figures)

    asked by vikki
  94. Project Mangament

    It would seem that if you shorten the critical path, you need to spend MORE money (overtime, extra labor, express shipping, etc.), not less. So how could it save money and shorten the duration of a project?

    asked by jimmy
  95. Math

    A tour boat on a river traveled 40 miles downstream in 4 hours. The return trip against the current took 5 hours. What was the rate of the current? A. 2.0 MPH B. 1.5 MPH

    asked by Tia
  96. physics

    Using a coil made of 117 turns of single-strand copper wire, you use a motor to rotate the coil at a constant angular speed of 30.0 revolutions per second at various orientations and locations throughout the room. In one particularly significant

    asked by Tyler
  97. math

    Lucy has 40 bean plants,32 tomato plants,and16 peppers plants.She wants to put the plants in rows with only one type of plant in each row.All rows will have the same number of plants.How many plants can Lucyput in each row

    asked by olivia
  98. Pre-calculus

    The area of a triangle wall on a barn is 160 square feet. Its length is 4 feet longer than twice the width. Find the length and width of the wall of the barn

    asked by Tamika
  99. anonymous

    Consider what you have learned about the geography and climate of Canada and the United States. Why do you think the United States has 10 times more people than Canada?

    asked by history
  100. Science

    long wings are dominant to short wings in fruit flies. make a punnett square to show the predicted outcome of a cross between two parents that have both alleles for wing length. what is the ratio of flies produced?

    asked by Student
  101. College Algebra

    A truck driver traveled at an average speed of 55 miles per hour on a 200-mile trip pick up a load of freight. On the return trip (with the truck fully loaded), the average speed was 40 miles per hour. What was the average speed for the round trip?

    asked by Monica
  102. math

    (1/36)^w+2 < (1/216)^4w

    asked by vrow
  103. Physics

    A flat 1.0m^2 surface is vertical at x=2.0m and parallel to the yz-plane. What is the flux through the surface if it is located in a uniform electric field given by E= 26.0i + 42.0j + 62.0k N/C? Explanation if possible :)

    asked by Pappy
  104. Social studies

    A shortage of what would have devastating consequences for the south during the civil war? Roads Canals Rivers Railroads ? I think all would be a consequence I have went back and looked it mentions canals and railroads?

    asked by Dude1
  105. Physics

    Consider a modified Atwood machine, with a mass sitting on an inclined plane connected by a string which stretches over a pulley connected to a hanging mass. Friction is ignored. Draw a free body diagram for both blocks. Apply Newton's second law to both

    asked by carolyn
  106. english

    Lots of my friends think that Prince's music is old, but I think it's not only excellent but also an innovation.

    asked by x
  107. Finance

    Given an interest rate of 6.25% compounded annually, how much would you accumulate if you started with $3,250 and then contributed $1,950 per year (at the end of each year) for 13 years? Is this correct? Calculate each FV and sum? PV1 = 3,250 i = 6.25% N =

    asked by Jessica
  108. Math

    your family is planning a 4-h car trip. along the way, you are planning to make a 1/2-h stops. at what time should you leave home to arrive at the destination by 8:00pm.?

    asked by taylor swift
  109. anthrolopogy

    Have Globalization and Internet Technology, two phenomena of our time, affected our aesthetics values? Please provide examples

    asked by jimmy
  110. Math-ratios

    Ed, bob, and sue want to share 24 crackers. They each get 8. Bo comes along and they want to share with him too. Now they each get 6. A. what is the ratio of people? I think 3:4 B. What is the ratio of crackers? I think 8:6 or 4:3simplified. C. Explain how

    asked by G
  111. physics

    The brakes of a car traveling at 16 m/s can decelerate it until it stops after 10m. Find (a) its negative acceleration, and (b) the time requires to stop

    asked by Allyn
  112. Chimstery

    What mass of CO is required to react with 146 g of iron (|||) oxide?

    asked by Ghada
  113. chemistry

    Need help stepping through this for a review. I need to prepare 40grams of a 29% sugar solution. How do I calculate how much sugar and how much water is needed? Was given this formula: weight% (w/w)=100 * (mass of solute/total mass of solution) I set up my

    asked by j3z
  114. calculus

    Hello! Just needed help with understanding this specific question. We never really wet over Euler's method so I'm not sure how to go about it. "Use Euler's method in order to solve the initial value problem below. dy/dx = x-3 and y=4 when x=1 Use Euler's

    asked by megan
  115. HSM/230

    Post a 200- to 300-word response to the questions found at the end of the case study.

    asked by Al
  116. Science

    Two forces of 5N and 12N respectivley act on the same point. Show how you would determine the Magnitude of the resultant by using the Tail to head and Tail ti Tail methods and pythagoras theoram (13N)

    asked by Lindelwa sbiya
  117. college algebra

    A rectangular auditorium seats 1920 people. The number of seats in each row exceeds the number of rows by 8. Find the number of seats in each row.

    asked by Katlyn
  118. math

    Find the x-coordinate of the point(s) of inflection on the graph of y = x^3 - 12x^2 - 5.

    asked by Mark
  119. algebra

    Solve. Simplify your answer. Type an exact answer using radicals as needed. y^2 + 31 = 12y Solution y = {8.236067978, 3.763932022} 1. y =(12-√20)/2=6-√ 5 = 3.764 2. y =(12+√20)/2=6+√ 5 = 8.236 Which would be the correct way to answer this equation,

    asked by slomo
  120. Math

    sorry I wrote problem wrong: Which equation would you use to find out if the two lines in the graph are parallel:(a)(1,4) and (-1,1) (b) (3,3) and (-1,-1) a. 4-1/-2-1 = 3-1/3-1 b. 4-1/-2-1 = 3-(-1)/3-1 c. 4-1/1-(-2)= 3-(-1)/3-(-1) d. 1-(-2)/4-1 = 3-1/3-1

    asked by BUBBLES
  121. Science Project on African Elephant

    What are the physical and behavioural adaptations of an african elephant with the danger and extinction of the african elephants????

    asked by Wimbika
  122. chemistry

    How can you test calcium nitride.. ( Ca3N2) I have written the reaction between calcium and nitrogen. A question that says " how will you test the product formed " is given. SO can you please help me, How can you test calcium nitride?

    asked by saurav
  123. Math

    Vector AB whose tail is at (-4,2) and whose head is at (-1,3). Calculate the magnitude of Vector AB.

    asked by Toby
  124. Math

    1.A tour boat on a river traveled 40 miles downstream in 4 hours. The return trip against the current took 5 hours. What was the rate of the current? A. 2.0 MPH B. 1.5 MPH C. 0.5 MPH D. 1.0 MPH This is also another question I did not understand. Thank you.

    asked by Tia
  125. Geometry

    Line CD is the perpendicular bisector of line AB. E and F are midpoints. If AB=6 and CZ=4, find the triangle ABC. Z is the centroid.

    asked by caleb
  126. Math

    A 30-second commercial during this year’s Super Bowl costs $4.5 million. B) Doritos is running 2 thirty-second commercials. A 16-ounce party-size bag of Doritos costs $3.98. If after paying the production costs of making and packaging this snack the

    asked by Anonymous
  127. science

    Give five reasons to prove that labio rohita (rohu) is a chordate.

    asked by saurav
  128. science

    Define buoyancy.state the factors on which buoyant force depends?

    asked by saurav
  129. math

    are the following a function 1. y=x/2 my guess is yes 2. y=2x+1 my guess is yes 3.y=x^2 my guess is yes 4.y=mx+b im not sure

    asked by Elena
  130. College Algebra

    s=c+rc solve for c

    asked by Monica
  131. College Algebra

    solve for b, A=1/2(a+b)h

    asked by Monica
  132. maths surds please help and explain

    Simplify A.1/root a +2 b.root 18/25 c.root a x cubed root a d.root x + 2 root y/root x-2 root y e.root5 x root72 /root 3

    asked by Bettina
  133. statistics

    Produce a 99.9 % confidence interval for the population mean body temperature of a healthy male. Then do the same for the population of healthy females. Round your answers to three decimal places.

    asked by j
  134. College Algebra

    A person who is 6 feet tall walks away from a 50-foot tower toward the tip of the tower's shadow. At a distance of 32 feet from the tower, the person's shadow begins to emerge beyond the tower's shadow. How much farter must the person walk to be completely

    asked by Monica
  135. chm

    KBr does not dissolve in nonpolar solvents because.... I think it is because they have similar solute but I really don't know.

    asked by bubles
  136. physics

    Astronauts visiting Planet X have a 2.6 -long string whose mass is 5.0g . They tie the string to a support, stretch it horizontally over a pulley 1.8m away, and hang a 1.8kg mass on the free end. Then the astronauts begin to excite standing waves on the

    asked by sunday
  137. math

    Spencer Morris works in the telemarketing division for a company that pays a salary of $735 per month plus a commission of 31 2% of all sales greater than $15,500. If he sold $45,900 last month, what was his total gross pay?

    asked by john
  138. Math

    Find the remainder when 3^997 is divided by 5. n=1 3n/5=3/5 n=2 3^2=9/25 n=3 3^3=27/5 n=4 3^4=81/5 n=5 3^5=243/5 r=3,4,2,1,3,4,2,1 n=997

    asked by Erika
  139. chemistry

    A method for scrubbing CO2(g) from the air on a spacecraft is to allow CO2(g) to react with NaOH according to the following (unbalanced reaction). NaOH(s) + CO2(g) → Na2CO3(s) + H2O(l) Use the appropriate thermodynamic tables to calculate the enthalpy,

    asked by Boris
  140. Criminal Justice/Judicial System

    One concern with specialized courts is that they are ________; critics say that treatment, individualized sentencing, and judicial monitoring coddle offenders. A. insufficient in judicial buy-in B. a passing fad C. blurred D. soft on crime I think it's D,

    asked by Pat
  141. Math

    When Juan divides each of five consecutive integers by his age , the sum of five remainders he gets is 32 . When Nikita ,several years older , divides each of a different set of five consecutive integers by her age , the sum of the five remainders she gets

    asked by Ereny
  142. Accounting

    Complete the following exercise. Fill in the Excel spreadsheet provided via the link below to provide your answers to parts a and b. Then paste the Excel data into a Word document on which you can also write the answer to part c. Income Statement

    asked by Jane
  143. Pre-Calculus

    Describe the function resulting from reflecting f(x)=x^3+2x^2-x+5 about the y-axis and then shifting to the left by 4. Is this the same as performing the operations in the reverse order

    asked by Jose
  144. Pre-Calculus

    If h(x)=x^3, what is the difference between h(x) reflected about the x-axis and h(x) reflected about the y-axis?

    asked by Adrian
  145. math

    What are the critical values on the graph of y = x^3 - 6x^2 + 9x + 3?

    asked by Henry
  146. computer

    code for a program to display a payroll in C++ to calculate the salary and bonus % show the name, age and rank.

    asked by abdul
  147. algebra with applications

    5(W+3)-6(W+5)=0

    asked by tamika
  148. algebra

    if f(x)=2x+1 then f(-2)=

    asked by Anonymous
  149. Math

    Trey can drive his car 130 miles on 4 gallons of gas. At this rate, how many miles can Trey drive on 6 gallons of gas?

    asked by Amy
  150. GENETICS

    long wings are dominant to short wings in fruit flies. make a punnett square to show the predicted outcome of a cross between two parents that have both alleles for wing length. what is the ratio of flies produced?

    asked by Melissa 8th grade
  151. Anthropology

    Review the concepts of Animism, Animatism, and Deism and describe how they vary in differences and similarities. Then, describe how each belief system is expressed by a particular culture that practices each concept. Animism is the belief that all life

    asked by MeMe
  152. math

    where are the parentheses in 3 times 2 minus 4 divided by 1

    asked by lily
  153. algebra

    michael purchased a certain number of shares of one stock for a total of $1400. The second stock was selling for 6$ less per share. Michael could have brought 3 more shares of the second stock for the same amount of money. How many shares of the first

    asked by bobby
  154. Math Help

    Hi! Can someone help check this for me and see if I'm doing it right? Thanks!! :) Directions: Use the Half-Angle formulas to determine the exact value of sin(pi/12). Here's what I have: π/12 = ( 180° ) / 12 = 15°. = sin ( π/12 ) = sin 15° = sin ( 45°

    asked by Mimi
  155. Math

    An item regularly priced X has a 130% mark up. Write two expressions for the new price

    asked by Josh
  156. physics - class 10

    An object is kept in front of a concave mirror of focal length 15cm . The image formed is three times to size of object. Calculate two possible distances of the object from the mirror ?

    asked by Raj Mohan Jha
  157. science subject

    write the structural formula of 2-methylpropane.2,2-dimethylpropane.1,2-dichloroethane.2-chloro-3-methylpentane.2-chloro-2-iodopropane.3,4,4-trimethyl-5-proplynon-2-ene.

    asked by barson
  158. Math

    How can you determine if the given lines are perpendicular :(a)(1,4) and (-1,1) (b) (3,3) and (-1,-1) a. 4-1/-2-1 = 3-1/3-1 b. 4-1/-2-1 = 3-(-1)/3-1 c. 4-1/1-(-2)= 3-(-1)/3-(-1) d. 1-(-2)/4-1 = 3-1/3-1

    asked by BUBBLES
  159. math

    The velocity V ms^-1, of a moving body at time t seconds is given V = 5t^2 – 12t + 7 Calculate the acceleration when t = 2 seconds

    asked by kudu
  160. math

    the willis tower is 1453 feet tall. it is 323 feet taller than the john hancock building. write and solve an equation to find the height of the john hancock building?

    asked by rainbow dash
  161. algebra

    Multiply and simplify. Assume that no radicands were formed by raising negative numbers to even powers. √6x^3 * √18x^2 = √2 * 3 * x^3 * √2 * 3^2 * x^2 = √2 * 3x^2x * √2 * 3^2 * x^2 = 6x^2 * √3x Is this correct?? If not can you show me the

    asked by slomomo
  162. Geometry

    find the area of a triangle whose vertices have coordinates:(5,5)(3,4)(8,3)

    asked by al
  163. Phy

    A flat 1.0m^2 surface is vertical at x=2.0m and parallel to the yz-plane. What is the flux through the surface if it is located in a uniform electric field given by E= 26.0i + 42.0j + 62.0k N/C? Im having trouble understanding the question, I know how to

    asked by Emily
  164. chemistry

    What happens when calcium is inserted in a gas jar of nitrogen? How will you test the product formed?

    asked by abbott
  165. chemistry

    Given the following values of ΔH, ΔS and T, calculate ΔG (in kJ). The values are: ΔH = -95.0 kJ, ΔS = 217 J/K, and temperature = 160 C.

    asked by danny
  166. spell

    Chicle:sphere A. Link:Chain B Length: breadth C. triangle:cube

    asked by Analogies relación
  167. Math

    A classroom of n = 10 children has a mean score of 17.200 on a measure of hyperactivity. One new child is added to the class, and the mean hyperactivity score for the resulting classroom including all the children is 18.000. Find the value of the new

    asked by Luis
  168. Math

    How do you change 97% into a fraction?

    asked by Mo
  169. math

    Draw a cookie that is divided into 2 equal parts.Write the fraction to go with your drawing.

    asked by nevaeh
  170. geometry

    Janine made a cylindrical vase in which the sum of the lateral area and area of one base was about 3000 square centimeters. The vase has a height of 50 centimeters. Find the radius of the vase. Explain the method you would use to find the radius.

    asked by Emi
  171. Math

    Polar ice is about 3/4 of the 3% of Earth's fresh water. What fraction of all of Earth's water is polar ice?

    asked by Mo
  172. History

    What was the purpose of ziggurats in Sumer? A. They were homes for wealthy Sumerians. B. They were conduits for water transport. C. They were temples for gods and goddesses. D. They were monuments to previous kings.

    asked by Britney
  173. College Human Geography

    "Why is there inadequate action by the state to curb the violence?" Can someone explain what the question is asking?

    asked by Ana
  174. Math Work

    Can someone please help me with this? Thanks! :) Directions: Use the Product-to-Sun formulas to write the product as a sun or difference. 4cos pi/3 sin 5pi/6

    asked by Abby
  175. Criminal Justice/Judicial System

    In alternative or problem-solving courts, __________ stay involved in the cases from beginning to end. A. court-appointed counselors B. defense attorneys C. judges D. prosecutors I think it's C, but not sure.

    asked by Pat
  176. History

    What we're professional baseball clubs forced to do in world war 2

    asked by Anonymous
  177. science

    Shubham lives in avillage,where drinking water facilites are very limited.they collect drinking water from a pond people also bathe and wash their clothes in that pond.he observed the most of the people are suffering from diarrhoea he advised people to use

    asked by saurav
  178. calculus

    Find the value of the limit. lim ã(x+4) - 2 divided by x x->0 The 2 is outside of the square root. The answer is supposed to be 1/4 but I keep getting 0/0 no matter how many times I redo the algebra.

    asked by paula
  179. math

    Todd needs to make 6 sandwiches. He uses an eight of a loaf of bread for each sandwich. draw a number line to represent how much bread he needs for 6 sandwiches? 0--1/6---2/6---3/6---4/6---5/6---6/6---1 Is this correct y or y-not? thank you.

    asked by moni
  180. science

    Define the following and give sl unit each: (a) power (b) work done (c) kinetic energy

    asked by saurav
  181. Math

    I'm really confused on these two. Can someone help explain this to me? Thanks! :) 1.) What values of u are not permissible in the expression csc(u)tan(u)? 2.) What values of u are not permissible in the expression sin(u)cot(u)?

    asked by Whitney
  182. Math

    The velocity V ms^-1, of a moving body at time t seconds is given V = 5t^2 – 12t + 7 Calculate the acceleration when t = 2 seconds

    asked by kudu
  183. algebra

    Use the laws of exponents to simplify 5/(6^12) 2/9 = I am not sure how to do this at all. Please and Thank you

    asked by slomo
  184. Pre-Calculus

    Describe the function resulting from reflecting f(x)=x^3+2x^2-x+5 about the x-axis and then the y-axis. Does the order of the reflections matter?

    asked by Andrea
  185. scince

    A loboratory uses an ultrasonic-scanner to trance tumar in tissue. The operting frequency of the 6 scanner is 4.2*10 hz.calculate the wavelength of sound in the tissue if the speed of the sound is 1700 m/s.

    asked by saurav
  186. Pre-Calculus

    find all the maximums of the polynomial f(x)=x^2-8x+11 What is the global (absolute) maximum?

    asked by Andrea
  187. Pre-Calculus

    Reflect f(x)=x^2 about the y-axis. What changes?

    asked by Christian
  188. science

    With the help of a labeled diagram describe in brief the rutherford's alpha particle scattering experment. Write three important conclusions drawn frm the expirment.

    asked by saurav
  189. algebra

    Multiply and simplify. Assume that no radicands were formed by raising negative numbers to even powers. √6x^3 * √18x^2 = √2 * 3 * x^3 * √2 * 3^2 * x^2 = √2 * 3x^2x * √2 * 3^2 * x^2 = 6x^2 * √3x Is this correct?? If not can you show me the

    asked by slomo
  190. math

    An equation is not a function if even one x value produces ____ corresponding y value(s). one less than one more than one zero for a my guess is more

    asked by Elena
  191. Pre-Calculus

    find the inverse of g(x)=(x+7)^3+4

    asked by Drue
  192. Science Fair Project

    Please help any tutors around, i really need help on what topic to choose, and my science fair is in February 16, 2015!!!!!! I just want to get a really good mark so i get an A in Science again this year in my report card. From a Student in need!!!Wimbika

    asked by Wimbika
  193. science

    'classification of life forms is closely related to their evolution'.justify this statment with the help of examples.

    asked by saurav
  194. math (geometry)

    find the value of each variables

    asked by yajaira salcedo
  195. algebra

    Solve each system graphically. If a system has an infinite number of solutions, use set builder notation to write the solution set. If a system has no solution, state this. x + y = 6 x - y = 4 I'm lost, Please Help!! Thank you

    asked by slomo
  196. math (geometry)

    does anyone know how to do inscribed angles????????????............!!!!!!!!!!!

    asked by yajaira salcedo
  197. Math

    Can't get started on this for my granddaughter: Grace had 3 times as many berries as Tyler. After Grace eats 50 berries she has half as many berries as Tyler. How many berries does Grace have left.

    asked by Robin
  198. algebra

    the sum of two numbers is 21. The first number is 2/5 of the second number. what are the numbers? Help, I have been trying to figure this out for two hours and my eyes are starting to cross!! Please and Thank you.

    asked by slomo
  199. Finance

    Given an interest rate of 6.25% compounded annually, how much would you accumulate if you started with $3,250 and then contributed $1,950 per year (at the end of each year) for 13 years?

    asked by Jessica
  200. physics/Math

    Buffy the Vampire Slayer is buffing up her 0.53 meter long arms by bench pressing. In 31 seconds she can lift 39 kilograms of mass 22 times. How powerful are Buffy's arms?

    asked by Anonymous
  201. math

    The second and fifth terms of a geometric progressions are 16 and 2 respectively. Determine the common ratio and the first term

    asked by kudu
  202. Math

    4x-2y=7  3x+6y=9 Please help me solve this system by multiplying

    asked by Student
  203. Math: Intro to Vectors

    Left side = right side check type of question. x - (x + y)/2 = (x - y)/2 What I did was times the x in the left side by 2. I got: =(2x-x+y)/2 which equals =(x+y)/2 But the left side is (x-y)/2. What am I doing wrong?

    asked by annonymous
  204. math work for workeys

    Ok so I have an example and I used it for my work. First I'll show the example. Multiply a mixed number with a whole number. 4 times 2 and 1/8 . You multiply 4 times 2 and 4 times 1/8. Get 8 + 4/8. Simplified and got 8 and 1/2. The problem that I got was.

    asked by andrea
  205. algebra with applications

    5(x-1)-4(×2+3x+4)-9(x+8)

    asked by tamika
  206. chemestry

    how many moles of 2g h

    asked by jay adams
  207. Math

    How would I write an expression for the following? 20 less than a number

    asked by Amy
  208. Programming

    The following is the Ticket for ABOOD Bus service Passenger’s Names: Going to: Date of issue: Report time: Seat no: Fare: Date of travel: Departure time: Bus no: Write a program to generate tickets for 30 passengers and save these tickets in an output

    asked by Nick
  209. Math (PreCalculus)

    How do I prove the following identity? sec^2x-1 (division line)> -------- = (tanx)(secx) (sinx)

    asked by Charli
  210. business calc

    52,000 for a loan and a monthly payment of 450.23 for 30 years ?

    asked by jasmine
  211. Organic Chemistry TLC Chromatography

    If you have 5.6 ml of 95:5 ethyl acetate, how many ml of 85:15 ethyl acetate can you make? Assume unlimited supply of pure ethyl acetate.

    asked by Joseph
  212. algebra

    factorize: 2a(2a-b) + (2a-b)-8

    asked by Anonymous
  213. algebra

    Multiply and simplify. Assume that no radicands were formed by raising negative numbers to even powers. √6x3 √18x2 I have never been good at figuring this formula out with square roots and I am practicing for a test next week and I really want to

    asked by slomo
  214. math

    Find the absolute maximum of the function f(x)=2x+1, where -2

    asked by Mark
  215. algebra with applications

    (x-3)(2x - 4)-(x+1)(x-5) 

    asked by tamika
  216. math

    limit as x --> ininity of (5-e^x)/5+ 3e^x

    asked by sam
  217. Math

    Directions: Find all solutions of the equation in the interval (0, 2pi) sin x/2=1-cosx

    asked by Lola
  218. English

    1. The big boy picks on me at school. 2. The big boy harasses me at school. ---------------- Q1: Are both the same in meaning? Q2: What are the parts of speech of both 'picks' and 'on'? Q3:picks on 1) an intransitive verb + a preposition? 2) a transitive

    asked by rfvv
  219. math

    where the parentheses in 4=3-1+4/2

    asked by lily
  220. algebra

    The product of 3and4,plus the quotient of 20 divided by 4

    asked by subbrina
  221. english

    This is Engish 8th grade: So in my book titled "The Raven" by Edgar Allen Poe, the bird sits on the bust of Athena the goddess but my homework is asking my why Poe choose Athena and not another god or goddess and how does she go with the story... Please

    asked by Kendal
  222. algebra

    Solve. 9x^2 + 12x = 32 x2 + (4/3)x - (32/9) = 0 has two solutions: x = -2/3 + √ 4 or x = -2/3 - √ 4 This is the solution I came up with. Is this right?? Please and Thank you.

    asked by slomo
  223. math

    17+k=514

    asked by gabby
  224. Math

    Determine the equation of the lines perpendicular to the given lines and passing through the given points:(a)(1,4) and (-1,1) (b) (3,3) and (-1,-1) a. 4-1/-2-1 = 3-1/3-1 b. 4-1/-2-1 = 3-(-1)/3-1 c. 4-1/1-(-2)= 3-(-1)/3-(-1) d. 1-(-2)/4-1 = 3-1/3-1

    asked by BUBBLES
  225. math

    Given that OA = 3i – 2j + k and OB = 4i – j – 3k. Find the distance between points A and B to 2 decimal places.

    asked by kudu
  226. Acidity of different concentrations

    Does the molar concentration (mol/L) of an acidic solution affect its pH value? - For example 0.3 mol/L of acetic acid will have a higher pH value than that of 7 mol/L of acetic acid. Correct?

    asked by Yassol
  227. Economics

    Simon Tam is negotiating passage on Serenity as a clandestine fugitive from the planet Persephone. He is told that the 185 million kilometer trip to Osiris will cost $4,120. Alternatively, he can take a 365 million kilometer trip to Bellerophon, but that

    asked by Ashley W
  228. English

    Making a poem about the word problem

    asked by Mpho Webb
  229. Criminal Justice/Judicial System

    In alternative or problem-solving courts, __________ stay involved in the cases from beginning to end. A. court-appointed counselors B. defense attorneys C. judges D. prosecutors I think it's C, but not sure.

    asked by Pat
  230. linear algebra

    Which of the following homogeneous systems have a nontrivial solution? 5x+ y + 5z =0 −2x + 2y− 4z = 0 4x− 3y + 6z = 0 can someone please explain how you know

    asked by sam
  231. math

    the number of photos t.j. has on his laptop is twice as many as the amount rolando has on his laptop. write and solve a multiplication equation to find how many photos rolando has on his laptop

    asked by poop
  232. Math

    Solving systems by Multiplying. 4x-2y=7 3x+6y=9

    asked by Student
  233. mathematics

    You enter the Kruger national park at komatipoort how far do u have to travel in the park to reach the orpen gate

    asked by Thato
  234. health

    Why is health care recession proof?

    asked by Rose
  235. Anthropology

    Ms.Sue, I am having problem with this, can you please assist me? Thank you Describe how each belief system is expressed by a particular culture that practices each concept.

    asked by MeMe
  236. algebra

    write a quadratic equation having the given numbers as solutions. -6 and -4 Not sure how this is to be written into an equation. Please help. Thank you

    asked by slomo
  237. Trigonometry

    Can you please help me verify these? >sin7x-sin5x= tanx(cos7x-cos5x) >(1-cosx)cot(1/2x) = sinx >1+tanx tan(x/2) = secx Its very confusing because of all the double-half angle formulas >_

    asked by Karla
  238. math metric unit

    A box of hot cocoa packets has 30 grams of hot cocoa mix. How many boxes of mix can be made from 6 kilograms of hot cocoa mix.

    asked by sarah
  239. Algebra 2

    f(x)=-x^2 - 3x Find the axis of symmetry, vertex, direction it opens, and write the equation in vertex form. If f(x) =x^2 + 2x g(x)= x-9 h(x) = 3x - 2 Find [f o g o h] (-2) Please explain how you got it I'm really confused right now.

    asked by Jessica
  240. Math - Operations with Algebraic Vectors

    If a = 3i + 2j and b=-2i+j calculate |a+b| a and b are vectors and i and j have the arrow pointy thing above it instead of the dots. The correct answer is square root 11. So, what I did was substitute a + b with the equations: =(3i+2j-k)+(-2i+j) =i+3j-k

    asked by Help-me-Please
  241. Math

    7/15 - 2/5=

    asked by Unknown
  242. algebra

    Use the law of exponents to simplify. 5/6^12 * 2/9 I don't remember if the second fraction you do the reciprocal and I have not done one where the denominator has to the power of. Help!!

    asked by slomomo
  243. Math

    In a group of 9 coins, one is fake and weighs slightly less. What is the fewest number of times you need to use a pan balance to find the counterfeit coins? (A pan balance is a scale used to measure weights, where weights are placed in two pans. The

    asked by Erika
  244. chemistry

    How many core electrons are there in a ground state phosphorus atom?

    asked by danny
  245. math

    Find a number b such that f∘g=g∘f, where f(x)=3x+4 and g(x)=bx−4. b=

    asked by Anonymous
  246. Math

    What does vitally mean?

    asked by Anonymous
  247. chemistry

    What happens when calcium is inserted in a gas jar of nitrogen.? How will you test the product formed

    asked by abbott