Questions Asked on
April 10, 2016

  1. Reading

    Which answer choice states the most logical conclusion based on the following statement by Patrick? I’ve never built anything before, much less a house. (1 point) 1. Patrick is not telling the truth. 2. Patrick feels uncertain in new 3. situations.

    asked by Quinn
  2. Life Orientation

    Describe the human rights violation that is taking place in your community or neighbouring community.Give your own position on xenophobia.

    asked by kenneth
  3. Calculus

    An energy drink container in the shape of a right circular cylinder must have a volume of 12 fluid ounces (1 fluid ounce is approximately 1.80469 cubic inches). The cost per square inch of constructing the top and bottom is twice the cost of constructing

    asked by Katie
  4. English

    prepared speech:English is a language of opportunity, why bother teach indigenous languages

    asked by Emily Miller
  5. math

    Robert must read a few books from his home library. He read 4 out of 6 books from the top shelf, then 2 out of 3 books from the middle shelf and then 3 out of 6 books from the bottom shelf. In how many ways can Robert read the books, if different orders in

    asked by yaz
  6. Science

    You observed light passing through lenses and through a set of prisms. Why does refraction occur? Include your lab observations in your answer. Respond to at least two other posts and evaluate the thoroughness and accuracy of each response. Can you please

    asked by Anastasia
  7. life oriantation

    Critical discuss six ways that the human rights violations influence individual, groups and the broader south African community

    asked by mushe
  8. College Physics 1 (Algebra-based)

    Calculate the force required of the "deltoid" muscle, Fm, to hold up the outstretched arm shown in the figure below. The total mass of the arm is 3.31kg. Assume that alpha = 15.2°, d = 12.0 cm and D = 24.0 cm. Figure: tinyurl com/hszqaqw Any help (at

    asked by collegegirl
  9. Physics

    An ideal spring hangs vertically from the ceiling. When a 1.0 kg mass hangs from the spring it is extended 5.0 cm from its relaxed length. A downward external force is now applied to the mass to extend the spring an additional 10 cm. While the spring is

    asked by Joane
  10. interest

    Bryan invests $500 in an account earning 4% interest that compounds annually. If he makes no additional deposits or withdraws, how much will be in the account: About how long would it take to double his $500 investment? Round to one decimal place.

    asked by jane
  11. Math :)

    Since the purpose of an ice cube is to keep a drink cold, is it better for an ice cube to have a high volume or a low volume? I thought that the higher the volume, the longer the amount of time the ice cube does NOT melt. Which one is best? Thank you. :)

    asked by Mariana W.
  12. Biology

    1. In a plant’s stem, the vascular tissue (1 point) is always arranged in rings of vascular bundles. is continuous from the roots to the leaves.*** carriest nutrients up the stem but not down. plays a role in photosynthesis and storage. 2. Many cacti,

    asked by SkatingDJ
  13. Math

    1. Determine which ordered pair is a solution of y = x^2-2 (5, 21), (–5, 24), (–1, –1), •• (–2, 6) 2. Without graphing, tell whether the line containing (6, –3) and (0, –8) is horizontal, vertical, or neither I think it's horizontal Correct

    asked by Queen
  14. Math: Parametric Equations

    The graph of the parametric equations x=cos(t) y=sin(t) meets the graph of the parametric equations x=2+4cos(s) y=3+4sin(s) at two points. Find the slope of the line between these two points. So far I've set up the system of equations cos(t)=2+4cos(s)

    asked by Katie
  15. Mathematics

    1. Determine which ordered pair is a solution of y = x^2-2 (5, 21), (–5, 24), (–1, –1), •• (–2, 6) 2. Without graphing, tell whether the line containing (6, –3) and (0, –8) is horizontal, vertical, or neither I think it's horizontal Correct

    asked by Queen/Halle
  16. Please Help ! Calculus

    Find two numbers whose sum is 42 and whose product will be at the largest possible.

    asked by Wawen
  17. PHYSICS CENTER OF MASS

    A thin rectangular plate of uniform areal density σ = 2.79 kg/m2 has length of 37.0 cm and width of 23.0 cm. The lower left hand corner is located at the origin, (x,y)= (0,0) and the length is along the x-axis. (a)There is a circular hole of radius 8.00

    asked by Nancy
  18. Physics CENTER OF MASS

    A thin rectangular plate of uniform areal density σ = 2.79 kg/m2 has length of 37.0 cm and width of 23.0 cm. The lower left hand corner is located at the origin, (x,y)= (0,0) and the length is along the x-axis. (a)There is a circular hole of radius 8.00

    asked by Jesse
  19. math

    in 2000, the population of a town was 8914. the population expected to grow at a rate of %1.36 each year. in what year will the population first exceed 15000? my answer:2007

    asked by Anonymous
  20. maths

    The 12th term of exceeds the 3rd term by 36 of an a.p If it's 16th term is 64 find first term and common difference

    asked by hetal
  21. Business Math - help needed

    Federal Express bought material handling equipment for its hub operations that cost $180,000. Using the MACRS, what is the depreciation expense in year 3 (using a five-year class)? A. $43,560 B. $34,560 C. $15,360 D. $40,000 Answer: B??

    asked by A
  22. interest

    Perry has an opportunity to put $12,000 into an investment with an APR of 5.6% compounded annually. How long will it take his investment to double? (round to one decimal place)

    asked by kelsey
  23. Physics

    A proton, moving with a velocity of vii, collides elastically with another proton that is initially at rest. Assuming that after the collision the speed of the initially moving proton is 1.50 times the speed of the proton initially at rest, find the

    asked by Dance Queen
  24. Sociology

    Im writing a paper on the similarities and differences of race and ethnicity. I have no problem finding similarities on the two, but finding differences are challenging. The only difference I know of is that they are both socially constructed. Can

    asked by Jen
  25. Physics

    A 1100 kg safe is 2.0 m above a heavy-duty spring when the rope holding the safe breaks. The safe hits the spring and compresses it 40 cm. What is the spring constant of the spring? I don't understand what to do here

    asked by tom
  26. science

    a car with two passengers travelling at 15m/s collides with a tree. one of the passengers who is not wearing a seat belt strikes the windshield head first and comes to rest in 0.03 s. the area of contact between the head and the windshield is approximately

    asked by Christoper
  27. physics

    A 1.00-kg beaker containing 2.29 kg of oil (density = 916 kg/m3) rests on a scale. A 2.33-kg block of iron is suspended from a spring scale and is completely submerged in the oil (see figure below). Find the equilibrium readings of both scales. top scale N

    asked by anna
  28. geometry (check answers)

    Determine whether you can construct many, one, or no triangle(s) with the given description. a) a triangle with angle measures of 50°, 70°, and 100° no b) a triangle with one angle measure of 60° and one 4-centimeter side no c) a scalene triangle with

    asked by cade
  29. life oriantation

    Make six suggestions on how to combat the violation of human rights

    asked by mushe
  30. HELP PHYSICS!! WORK

    How much work is it to push a box (mass 190 kg) up an incline (angle 16 degrees with the horizontal) that is 8.3 meters long, if the coefficient of kinetic friction between the box and the incline is 0.6?

    asked by Emma
  31. life orientation

    Make six suggestion on how to combat the violation of human rights

    asked by Anonymous
  32. stats

    raffle with a grand prize $500., 2 second place prizes of $100., 4 third place prizes of $50.. the raffle offers 250 tickets for $4. each. what is probability model , the expected value of a single ticket and the target of $200.to be raised can they expect

    asked by teresa
  33. Chemistry: Salt of weak acids and bases

    If 25 mL of 0.20M NaOH is added to 20 mL of 0.25M boric acid, what is the pH of the resultant solution?

    asked by Wen
  34. Chem

    Given the equation 2C8H18 + 25O2 = 16 CO2 + 18H2O: How many moles of oxygen gas (O2) are consumed upon combustion of 2.20 L of octane ( D = 0.703 g/mL)?

    asked by Chris
  35. MATHS

    Prove the identity: 4x=1-8sin^2x+8sin^4x

    asked by PRELUDE
  36. Trig

    Find sin(x+y), cos(x-y), tan(x+y), and the quadrant of (x+y) if sinx= -1/4, cosy= -4/5, with x and y in quadrant 3.

    asked by Brendan
  37. math

    A worm is 130 millimeters long. How many centimeters long is the worm?

    asked by Sereniti
  38. English

    Traditional African marriage is an advantage for men only?

    asked by bongumusa
  39. PHYSICS work on a ramp!!!

    How much work is it to push a box (mass 190 kg) up an incline (angle 16 degrees with the horizontal) that is 8.3 meters long, if the coefficient of kinetic friction between the box and the incline is 0.6? My doubt is how do I find force?

    asked by Matt
  40. Science

    A car is traveling 20m/s brakes and takes 3 s to stop.What is the acceleration in m/s

    asked by Breanna
  41. chem

    Calculate ΔG° (in kJ/mol) for the following reaction at 1 atm and 25 °C: C2H6 (g) + O2 (g) → CO2 (g) + H2O (l) (unbalanced) ΔGf° C2H6 (g) = –32.89 kJ/mol; ΔGf° CO2 (g) = –394.4 kJ/mol; ΔGf° H2O (l) = –237.13 kJ/mol

    asked by holly
  42. math

    There are 54 paintings in the National Museum. The ratio of the number of sculptures to the number of paintings in the museum is 7:9. (a) Express the number od sculptures as a fraction of the number of paintings. (b) How many sculptures are there in the

    asked by Saba
  43. PHYSICS!!

    Two basketball players collide head on. play a weighs 80 kg and is travelling 2.5m/s to the right while player b weighs 68 kg and is travelling 1.2 m/s to the left. after collision player a is travelling at 1.0 m/s to the right. a. what is the change in

    asked by tom
  44. physics

    A golf ball is hit at a velocity of 30 m/s at an angle of 40˚ from the ground. a.) How high will the golf ball rise? b.) How long will it take for it to hit the ground? c.) How far will it go?

    asked by suzie
  45. Math

    find the slope of a line that is perpendicular to the line containing the points (–2 –1) and (2 –3) A.) m=-2 B.) m=2 C.) m=-1/2 D.) m=1/2

    asked by jai
  46. math

    Steve runs a kennel and purchases dog food from a U.S supplier. The supplier sells 25 lb bags for $28.95 U.S Each dog eats about 3.5kg/week and Steve boards an average of 16 dogs per day. How many bags of dog food will he need for 3 months? The answer is

    asked by yvonne
  47. Interest

    Perry has an opportunity to put $12,000 into an investment with an APR of 5.6% compounded annually. Use the number of years you got as an answer in the previous to find out how much Perry’s balance would be at the end of that time. Round to one decimal

    asked by kelsey
  48. English

    Is the following sentence a smiple compound complex or compund-complex? She invited her neightbor to the party even though she didn't know her very well

    asked by Ryan
  49. quim

    A 453 K y 755 mm Hg, ¿qué volumen de N2 reaccionará completamente con 22.2 L H2 para producir NH3? N2(g) + 3 H2(g) --> 2 NH3(g) tengo la duda si uso la fórmula de gas ideal PV=nRT o alguna otra, pero al tener solo una presión y una temperatura no se

    asked by Marie
  50. Physics

    A flying squid (family Ommastrephidae) is able to "jump" off the surface of the sea by taking water into its body cavity and then ejecting the water vertically downward. A 0.80 kg squid is able to eject 0.32 kg of water with a speed of 20 m/s. (a) What

    asked by xxxxxxx
  51. maths

    A tower 7 metres high stands on top of building which is 9 metres high. An observer at the bottom of the building notices that, as she walks away from the building, the angle theta which the tower subtends at her eyes seems to increase in size for a

    asked by haro
  52. math

    solve for x and y , the simultaneous equations 4^x+3 = 32(2^x+y) and 9^x + 3^y = 10

    asked by Deen
  53. Jw dot org

    Anybody ever hear of the Jehovah's Witnesses?

    asked by Raul Resendiz
  54. Physics

    The amount of radiant power produced by the sun is approximately 3.9 x 1026 W. Assuming the sun to be a perfect blackbody (e = 1) sphere with a radius of 6.96 x 108 m, find its surface temperature (in kelvins).

    asked by Akeneta
  55. math

    a tower 7 metres high stands on top of building which is 9 metres high. An observer at the bottom of the building notices that, as she walks away from the building, the angle theta which the tower subtends at her eyes seems to increase in size for a

    asked by haro
  56. Healthcare Statistic

    The HIM coding supervisor agrees to pay a new graduate $13.50 per hour. This is a full-time coding position at 2,080 hours per year. The cost for a full-time employee's fringe benefits is 24 percent of the employee's salary. How much must the supervisor

    asked by Sally
  57. math

    There are 1500 poultry on a farm. 40% are chickens, 2/3 of the ramainder are ducks and the rest are geese. What percentage of the poultry are geese?

    asked by Saba
  58. physics

    A bullet with a muzzle velocity of 200 m/s is fired horizontally from a rifle mounted on top of a window ledge 7.8 m from the ground. a.) How long will it take to hit the ground? b.) What is the range of the bullet?

    asked by suzie
  59. Work

    A truck carrying a 57 kg crate accelerates uniformly from rest to 86.5 km/hr in 18.4 s. Calculate the work done on the crate by the truck (in J). I got 16454 J right. Now why is it positive? K-K = negative if Velocity from rest is 0.

    asked by Chris
  60. math

    To make muffins, Mrs Chan mixed 3 cups of flour with every cup of milk. (a) What is the ratio of the number of cups of flour to the total number of cups of flour and milk? (b) What proportion of the mixtures is milk? (c) If Mrs Chan used a total of 20 cups

    asked by Saba
  61. Math

    how do the surface areas of the five prisms (triangular, square, pentagonal, hexagonal, and octagonal) compare as the number of faces in the prisms increases? I had to make prisms out of construction paper of the same size, but I think my measurements are

    asked by Jace
  62. math

    A rice cooker was sold for $60 after a discount of 60%. What was the price of the rice cooker?

    asked by Saba
  63. Physics

    Einswine has a mass of 300 kg. He sits on an ideal spring. Before he sits on the spring it is 2 m tall. After he sits on the spring it is only 1.5 m tall. What is the spring constant of the spring?

    asked by joane
  64. Science

    Calculate the frequency of rotation of the second hand clock

    asked by Kenny
  65. Math 143

    What is the probability of not rolling a number larger than 4 with a fair die?

    asked by Lucy
  66. Chemistry

    In the equation 2 NaN3----2 Na + 3 N2// how much N2 would be produced if 100 grams of NaN2 completely reacted at STP?

    asked by Lisa
  67. english

    English is the language of opportunities why bother to teach other indigenous language

    asked by Anonymous
  68. Geometry

    The Z company specializes in caring for zebras. They want to make a 3-dimensional "Z" to put in front of their company headquarters. The "Z" is 15 inches thick and the perimeter of the base is 390 inches. What is the lateral surface area of this "Z"? 390 x

    asked by Boberto
  69. Healthcare Statistic

    A coding supervisor must determine the number of full-time equivalents (FTEs) needed to code 500 discharges per week. If it takes an average of 20 minutes to code each record and each coder works 7.5 productive hours per day, how many FTEs will the coding

    asked by Linda
  70. Math Grade 7

    To improve her cardiovascular capacity,Mia wants to increase the distance she walks each day. She now walks 1/2 mile in 8 1/2 minutes. If Mia keeps the same pace, will she be able to walk 1 1/2 miles in less than 1/2 hour?

    asked by April
  71. Math

    A web-site asks users to create a 5-symbol PIN code where first and second symbols are any letters from the English alphabet and next 3 symbols are any digits. How many different PIN codes can be created?

    asked by I need help
  72. Physics

    A 3.10 kg block is pushed along a floor by a constant applied force that is horizontal and has a magnitude of 43.5 N. What is the coefficient of kinetic friction between the block and the floor? I tried dividing the N by the KG and vise versa but it didn't

    asked by xxxxxxx
  73. Physics

    A 25 kg box is along a horizontal floor and a force of 400 N pushes the box with an angle of 50 degree with the horizontal. Starting from rest, the box achieves a velocity of 2 m/s in a time of 4 seconds. Find the coefficient of sliding friction between

    asked by Shekinah
  74. Geometry

    given the parallelogram of the perimeter RATU with vertices R(1,3) S(-2,-2) T(4,0) U(7,4):round to the nearest hundredth Rec1: Rec2: triangle 1: triangle 2: triangle 3: triangle 4:

    asked by Anthony
  75. Chemistry

    calculate the % dissociation of a 0.750M acetic acid solution and 0.50 M sodium acetate solution. I got the % for acetic acid to be 0.48% but cant finish the question.

    asked by Meaghan
  76. Math

    Shelley drives her car for p days over a 30-day period. Her sister Helen used it for 1/6 of the remaining days. (a) For how long does Helen use the car? (b) For how long do Shelley and Helen use the car over a 30-day period?

    asked by Jackii
  77. Math ratio

    Melanie mixes water with plant fertilizer in a proportional relationship that can be represented by the equation w=3p, where w is the number of quarts of water and p is the number of tablespoons of plant fertilizer. To keep this suggested ratio,should

    asked by Caroline
  78. math

    Which figure results from slicing a pentagonal pyramid with a plane through the vertex that is perpendicular to the base?

    asked by Anonymous
  79. algebra

    A flagpole has a height of 6565 yards. It will be supported by three​ cables, each of which is attached to the flagpole at a point 55 yards below the top of the pole and attached to the ground at a point that is 3232 yards from the base of the pole. Find

    asked by melissa
  80. 7th grade math

    A submarine descends below the oceans surface at a rate of 75 feet per minute. How naby feet below the iceabs surface will the submarine be in 12 minutes

    asked by zaire
  81. Quick Physics help

    1. What is the medium for waves on a rope? 2. What is the medium for earthquake waves? 3. A characteristic of waves is that after the wave has passed the medium is (disturbed, undisturbed) is this disturbed? 4. A cork is floating in the water 20 m from the

    asked by Anonymous
  82. Physics

    A 1.4 kg box that is sliding on a frictionless surface with a speed of 10 m/s approaches a horizontal spring. The spring has a spring constant of 2000 N/m. (a) How far will the spring be compressed in stopping the box? (b) How far will the spring be

    asked by michael
  83. Multiplicative inverse

    Angelo says that if you know one unit rate in a proportional relationship, the other unit rate is always the multiplicative inverse of the unit rate you know. Is Angelo correct? Explain

    asked by April
  84. Math

    A plane flies 430 miles at a bearing of N27°E, then turns and flies N63°E for 135 miles. Find the distance and the bearing from the starting point to the ending point ? I found distance to be 450.69 mi by using A^2+B^2=C^2 because it is a right triangle.

    asked by Nicole
  85. English

    1. He will must go to Japan. (X) 2. He will have to go to Japan. 3. She will may go to the amusement park.(X) 4. She will be allowed to go to the amusement park. 5. He must can speak Chinese.(X) 6. He must be able to speak Chinese. 7. He may must parctice

    asked by rfvv
  86. Math

    Laurie and Anna are running a 3 mile race. After 5 minutes, Laurie has run 3/5 miles and Anna has run 7/10 mile. If both ladies can keep their same pace for the remainder of the race, how many minutes ahead of Laurie will Anna cross the finish line?

    asked by April
  87. PHYSICS ENERGY CONSERVATION!!

    The car shown in the figure has a mass of 395 kg when it passes through point A with a speed of 17.7 m/s, being the height of A 7.2 m above the ground (y = 0). In the instant that passes through C its speed is diminished to 7.6 m/s. Assuming that the path

    asked by Malcolm
  88. physics

    A mass m = 0.068 kg of benzene vapor (Lv = 3.94x105 J/kg) at its boiling point of 80.1°C is to be condensed by mixing with water at 45.0°C. What is the minimum mass of water required to condense all of the benzene vapor? Assume the mixing and

    asked by jose
  89. Economics

    What are cost and consequences of providing welfare and subsidies?

    asked by Ayanda
  90. Geometry

    A rectanglular swimming pool has a length of 25 feet and a width of 12 feet. You want to !@#$%^& a gravel walkway that is 4 feet wide all the way around the pool. What is the area of the gravel walkway

    asked by Saniya
  91. Chemistry

    What volume of 1.0 M NaOH must be added to 1.5 L of 1.20 M CH3COOH (ka=1.8x10^-5) to make the solution a buffer for pH 4.50? I do not understand how to determine the mols of NaOH. I tried to use the equation where: [H3O+] = ka (nHA/nA-) but it is not

    asked by Charles
  92. Math

    Ginny had 1 4/5 yards of green ribbon and 1 2/3 yards of yellow ribbon. Did she have enough ribbon to put around a hat that needed 3 yard of ribbon? Explain your answer. ----------------------------------- I need help on the explaining part. I said no.

    asked by Bonny the Horse
  93. Calculus

    Determine the following limits if it exists. a. lim x-->5 (4x/x-5)

    asked by Marc
  94. Math

    Find F'(x) Original equation: F(x)= definite integral of x+3 to 0 (10t+1) dt

    asked by Lanie
  95. Math

    Jake is on the Appalachian Trial hiking. He hikes 8 miles due north and then turns and hikes an additional 10 miles at a bearing of N 67°W at which point he has reached a vista, eats lunch, and decides to bushwhack directly back to the trailhead. How far

    asked by Nicole
  96. physics

    A ball is thrown horizontally from a height of 100 m. It covered a horizontal distance of 3,350 m when it touches the ground. a. What is its horizontal velocity? b. How many seconds after it was fired will it touch the ground? c. What was its vertical

    asked by suzie
  97. math

    There's a frog at the bottom of a 30-foot well. The frog will rise 3 feet in the morning & would slid down 2 feet in the evening. If the frog will start on February 1, what date will it reach the top?

    asked by johanah
  98. Math

    A utility company has the following rate schedule for natural gas usage in a city's district: Monthly service charge of $8.80; Per therm service charge: 1st 25 therms: $0.6686/therm; Over 25 therms: $0.85870 (a) What is the charge for usaging 25 therms in

    asked by Anonymous
  99. problem solving

    susan is 4 years older than her sister rita. Seven years ago, Susan was twice as old as Rita. How old are they now?

    asked by Presley
  100. Energy of satellite PHYSICS

    An m = 43 kg mass instrument package is put into orbit at an altitude above the Earth of A = 23000 km. What is the kinetic energy of this satellite in Joules?

    asked by Stephanie
  101. physical science

    When a rocket is 3km above the ground,it has an upward velocity of 10 m.s^-1.A booster rockect is fired downward,resulting in a net force of 6000 N being exerted upward on the shuttle.The time it takes the booster to leave the shuttle after being fired is

    asked by jeniffer
  102. Specialist maths

    'A pole casts a shadow 20 m long when the altitude of the sun is 49. Calculate the height of the pole.'

    asked by HAJA
  103. maths

    1-cosA+sinA DIVIDED BY 1+cosA+sinA

    asked by passeint
  104. math

    A school library had 1050 books last year. There are only 950 books in the library this year. What is the percentage decrease in the number of books? Round your answer to 2 decimal places.

    asked by Saba
  105. English

    Thank you for your help. Did you have a good weekend? I have some more questions. 1. Take time and look upward at night. 2. ___________ and look upward at night. (What other similar expressions can we use in the blank?) 3. Point your foot backward. 4.

    asked by rfvv
  106. science

    If you place a green filter in front of a white light and shine it on a pink flower,what colour will it change into.what effect did the green filter have on the pink flower.Explain the reason for the change in colour..THANK YOU:-)

    asked by ?
  107. math

    solve the equation Ig(x+14)-Ig(x-2)=2Ig5

    asked by carolina
  108. Math

    You have $30 to spend on picking 25 pounds of two different types of fruit at a farm. The apples cost $1.40 per pound the blueberries cost $.90 per pound and the cherries cost $1.10 per pound. You want prices many pounds of apples as the other two fruits

    asked by Jude
  109. political science

    During the 2nd Party System in American politics, parties moved from a ______ in Congress to a _______ in order to pick candidates and develop a party platform. caucus; national convention informal poll; direct primary caucus; direct primary random

    asked by ryan
  110. math

    in a school with 1500 students , one student returned from vacation with a contagious flu virus on 1st January. the spread of the virus through student body is given by y=1500/1+1499e^-0.85t where y is the total number of students infected after t days.

    asked by holy
  111. political science

    Which of the following is NOT considered a critical election? William McKinley (1896) Theodore Roosevelt (1904) Abraham Lincoln (1860) Franklin Roosevelt (1932)

    asked by ryan
  112. physics

    A light spring of constant k = 95.0 N/m is attached vertically to a table (figure (a)). A 2.70-g balloon is filled with helium (density = 0.179 kg/m3) to a volume of 4.00 m3 and is then connected to the spring, causing the spring to stretch as shown in

    asked by anna
  113. History

    What exactly happened in the Halifax Explosion? all the websites are confusing me so can someone explain it to me in their own words? i know the Mont blanc and imo collided but what happened to ship specifically and how did it happen?

    asked by Tory lanez
  114. organic chemistry

    This is for a phase catalysis lab experiment 1. How is the phase transfer catalyst removed from the product? I said, by washing it with salt. 2. what purpose does washing with 15% (half-saturated) NaCl solution serve? I said, to remove bulk of water 3.

    asked by tols
  115. Math

    List All Of The Integers There Are Between The Square Root Of 13

    asked by Samantha
  116. Calculas

    W= [ a , a+b ] (2x2 matrix) a-b , b a, b are element of R Show that W is a Subspace of M22?

    asked by Wong
  117. Physics

    A ball is thrown from the ground toward a cliff of height h with a speed of 30.0 m/s and an angle of 60o above horizontal. It lands on the cliff 4.00 s later. How high is the cliff? Answer: 25.5 m But having difficulty getting this answer

    asked by Sarah
  118. Math: Trigonometry

    Find the sum of the three smallest positive values of x such that 4cos^2(2x-pi) = 3. (Answer in radians.)

    asked by Katie
  119. Statistics

    Several states, including California, have passed legislation requiring automakers to sell a certain percentage of zero-emissions cars within their borders. One current alternative is battery-powered cars. The major problem with battery-operated cars is

    asked by Eddy
  120. Question

    What is the population density in miami florida?

    asked by Queen
  121. Math geometry

    A rectangle is 146cm long. A diagonal makes an angle of 50° with the width. How wide is the rectangle?

    asked by Jasnoor sidhu
  122. Block Colliding with a Spring

    A moving 1.60 kg block collides with a horizontal spring whose spring constant is 480 N/m. The block compresses the spring a maximum distance of 12.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal

    asked by Chris
  123. math

    In an English test, Alvin scored 28 out of 40 marks. In a Mathematics test, he scored 36 out of 60 marks. (a) In which test did Alvin score better? (b) What was the percentage difference between Alvin's scores for both tests?

    asked by Saba
  124. Math

    Victor can ride his bike 15 miles in 2 hours. He uses this ratio 15:2, to write an equation that shows the relationship between the distance he bikes and the time it takes. Victor's work is shown below. Is his equation correct?

    asked by April
  125. Math

    Katherine spends 7 h a day in school. This includes a 30 min lunch break each day. a) Write a ratio that compares the time for her lunch break with the total time she spends at school each day. b) Write a ratio that compares the time for her lunch breaks

    asked by O
  126. Math

    I need help. Solve the proportion: 4:x :: -3/8:12

    asked by Lynn
  127. science

    Explain the reasons for the change in colours

    asked by ??????
  128. Math

    You have tow ropes one 14inches the other 23 inches if you if you need three feet of rope what do you do use RDW to solve

    asked by Courtney
  129. Trigonometry

    What are the two radians and degrees for the following? 1. tanè=sqrt 3 over 3 Answer: pi/6 or 30deg What is the other radian and degree? 2. cotè=-1 3. secè=2 4. cscè= sqrt 2

    asked by Anonymous
  130. mathematics

    given that log(6)/log(a) = p and log(108)/log(a) = q , express log(3)/log(a) in terms of p and q

    asked by Kaelyn
  131. Calculus

    Find the volume of the solid bounded below by the parabloid z = x^2 + y^2 and above by the plane 2x + z = 3

    asked by Macy
  132. physics

    given the following apparatus; retort stand,stone,thread,spring balance,water,beaker and kerosine.using Archimede's principle, describe a simple experiment on how to determine the density of kerosine.

    asked by kelechi
  133. Math

    I need Help! ---------------------------------- 1.Peeta walked 8 miles. He stopped every 3/4 of a mile to eat a cookie. How many cookies did he eat during his walk? 2.What fraction is the same as the division problem below? A.8/3 B.5/8 C.8/2 D.3/8 3.Which

    asked by Bonny the Horse
  134. algrbra

    the volume of the shape below is placed into a bow that is 10 feet tall and the area of the base is 48ft squared feet. to the nearest tenth what is the remaining space. The figure is a sphere that has a radius of 6 ft. r=6ft I really need help figuring how

    asked by hello2248
  135. History

    When was cursive writing used in newspapers? Was it the 1800s?

    asked by Poya
  136. Physics projectile

    If a body projected vertically upwards, give a graph showing variation in its kinetic energy

    asked by Anonymous
  137. Chemisty

    An ideal gas with an initial volume of 96L, temperature of 277K, and 7.3mol is permitted to come to a second state with a volume of 450mL and a temperature of 203C. Show the calculation for the final number of moles of gas in the system.

    asked by Kevin
  138. Calculus

    limit of (x*(y-1)^2*cosx)/(x^2+2(y-1)^2) as (x,y)->(0,1). By evaluating along different paths this limit often goes to 0. This does not necessarily imply that it exists. So how would i prove that it exists. Can someone please show me how i can prove using

    asked by Jim
  139. math

    how many pieces would that be a month

    asked by anita
  140. Linear Algebra

    p1, p2, p3 are elements of P_2 p1(x)= 1+x-2*x^2 p2(x)= 2+3x-x^2 p3(x)= 3+5x-x^2 Is S = {p1, p2, p3} linearly independent?

    asked by Alex
  141. Math

    What is the ratio in fraction form for 9 pints to 2 quarts

    asked by Joseph
  142. Maths

    a hosepipe feeds water into a tank of height 2m and an internal diameter of 1.6m. Calculate the volume of water in the tank when it is full. Please help as I'm very confused :)

    asked by Stoof
  143. chemistry redox reactions

    can someone check my labels for the reaction of a radical with an extra electron, (R(e-)) and an antioxidant, ArOH. R(e-) + ArOh --> RH + ArO(e-) R(e-) is oxidizing agent. ArOH is reducing agent. RH is reduced ArO(e-) is oxidized. Is this correct? And the

    asked by Anonymous
  144. Math

    A utility company has the following rate schedule for natural gas usage in a city's district: Monthly service charge of $8.80; Per therm service charge: 1st 25 therms: $0.6686/therm; Over 25 therms: $0.85870 (a) What is the charge for usaging 25 therms in

    asked by Anonymous
  145. math

    find the constant of proportionality(k) from the equation 2y=108y

    asked by gladys
  146. Math

    Circle the number closest in value to 4. 1. 4.123 2. 4.03 3. 3.981 4. 4.001 The answer I selected is 3.981 is this correct?

    asked by Harry
  147. math

    A carterer makes 50 l of lemonade. She keeps 10% of the lamonade for her family. She sells 65% of the remaining lenonade. How many liters of lemonade does the carterer have left?

    asked by Saba
  148. math

    There are some peanuts and almonds in a packet. The proportion of peanuts is 2/3 of the total number of nuts in he packet. (a) What proportion of nuts in the packet are almonds? (b) What is the ratio of the number of almonds in the packet to the total

    asked by Saba
  149. Math

    Jake is on the Appalachian Trial hiking. He hikes 8 miles due north and then turns and hikes an additional 10 miles at a bearing of N 67°W at which point he has reached a vista, eats lunch, and decides to bushwhack directly back to the trailhead. How far

    asked by Nicole
  150. science

    What effect did the green filter have on the pink flower

    asked by unknown
  151. Math

    Is this correct? Divide the reciprocal of -9 by the opposite of -9. This is my answer -9/1 / -9 -1/9 / 9 -1/9 * 1/9 = -1/81

    asked by Lynn
  152. science

    What effect does green filter have on pink flowers??please help me now.I am waiting.thank you

    asked by anonymous
  153. maths

    solve the equation log(y)/log(2) + log(y)/log(4) = 6

    asked by dan
  154. political science

    As US ambassador to the United Nations, Samantha Power has what rank compared to other members of the executive administration? cabinet committee sub-committee sub-cabinet

    asked by ryan
  155. physics

    Piston circled 1 in the figure below has a diameter of 0.28 in.; Piston circled 2 has a diameter of 1.6 in. In the absence of friction, determine the force vector F necessary to support the 500-lb weight. in lb i got 1.53 lb but it is incorrect

    asked by anna
  156. Math

    If Owen gives $50 to charley, they will have an equal amount of money. If Charley gives $100 to Owen, the ratio of Owen's money to Charley's money will be 4:1. How much money does Owen have in the beginning?

    asked by John U.
  157. Physics

    You take a trip in your car. Starting from rest, you accelerate at 1.00 m/s2 for 10.0 s, heading north. You then stop accelerating and immediately head west at a constant speed for an additional 20.0 s, at which point, you crash into a building coming to

    asked by sarah
  158. political science

    One of the main differences in passing a bill is that the House has a _____ which the Senate does not. rule committee lower requirement for passage veto power fast-track committee its the veto power?

    asked by ryan
  159. physics

    Consider the circuit shown below. Assume that the op-amp is ideal. fa2014_fn_diode_opamp2.png Figure 3-1 The diode has the following I-V characteristics: iD=Is*(e^(vD/vth)-1) where iD is the current through the diode,( Is ) is the reverse bias saturation

    asked by bearinthewoods
  160. Nazi related S.S

    What would happen if one of the German soldiers would turn against Hitler? just need a site or an explanation please thanks,

    asked by Emma
  161. factoring polynomiald

    8b(2power)+ 6b +1=

    asked by michael
  162. Foundation of sociology

    define max's notion of relations of production,in one sentence.

    asked by Nancy Asino
  163. Express Maths

    Queation : 3x + [- 5(- 4x - 8)] = 2x

    asked by A.Sarah
  164. Geometry

    Find area of a triangle with side lengths 15 15 and 8

    asked by Anonymous
  165. Life sciences,Geography,History and Maths

    What courses are available with these subjects and at which universities

    asked by Mpho Patricia Motsamai
  166. statistics

    The probability of an event could be 16/17.

    asked by amy
  167. math

    what is a 100 tons per month? please answer

    asked by anita
  168. math

    15=2^x

    asked by amire
  169. physics

    A window air conditioner consumes 900 W of electric power and has COP = 2.9.If it runs continuously for 24 h , how much heat gets removed from the house?

    asked by lizbeth
  170. Math

    A farmer has enough seeds to grow 200 crops of wheat and 300 crops of oats in one season. However, his water supply is limited to growing only 250 crops. Find a system of inequalities that describes the possibilities for his farming.

    asked by Anonymous
  171. Question

    Is New York a region??

    asked by Queen
  172. Calculus derivatives

    Consider the equation x^2 + xy + y^2 = 1 Find all points where the tangent line is parallel to the line y = −x. Thank you for helping

    asked by Jumpman
  173. Computer science

    Is computer a system?

    asked by Noor
  174. Chemistry

    If the percent yeild of the following equation is 55%, how many grams of H2SO4 are produced when 4.88 x 10^24 molecules of SO3 are combined with excess water? SO3(g)+H2O(l)->H2SO4(aq). what would be the formula to solve this equation

    asked by Sean
  175. math

    There were 60 basketball players in the school team last year. This number of basketball players increases to 80. What is the percentage in the number of basketball players?

    asked by Saba
  176. Ela

    What figurative language is this sentence "you dived to deep"

    asked by Doaa
  177. geography,life sciences, history,maths literacy

    i want to know careers which are related to those subjects

    asked by lindiwe mlindo mokgobu
  178. English

    1. You can do these activitiesa at any place, at any time. 2. You can do these activitiesa anyplace, anytime. 3. You can do these activitiesa anywhere, anytime. (Are they all interchangable? Are they all grammatical?)

    asked by rfvv
  179. Chemistry

    Make NaCl from NaHCO3 and HCl-Starting with 3.0 grams of NaHCO3-what would be a source of error on yield of purity of NaCl and what modifications could be made?

    asked by Lisa