Questions Asked on
February 17, 2015

  1. chemistry

    4g of a mixture of CaCO3 and sand is treated with an excess of HCl and 0.88g of CO2 is produced. What is the percentage of CaCO3 in the mixture

    asked by Ana
  2. Physics

    A contestant in a winter games event pushes a 59.0 kg block of ice across a frozen lake as shown in the figure below. The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. The block is being pushed at a direction of 23

    asked by Mariah
  3. Language Arts

    Both "Grandma Ling" and "your little voice . . ." use imagery to convey the emotions or attitudes of the speakers. Choose one of these poems. In a paragraph, discuss how the poet uses imagery to present the speaker's feelings. Support your response with

    asked by XenaGonzalez
  4. physics

    A 7.00-kg bowling ball moves at 2.15 m/s. How fast must a 2.40-g Ping-Pong ball move so that the two balls have the same kinetic energy?

    asked by Michael
  5. physics

    21. A traffic signal of mass 25.0 kg is suspended by two cables as shown in the diagram below. Solve for the tension in each cable each of the following scenarios: (a) θ1 = θ2 = 20.0°, and (b) θ1 = 20.0°, θ2 = 30.0°.

    asked by Danny
  6. tec

    What is an AUP? the abbreviation for the school administrator in an online education environment a document outlining what is acceptable behavior when using the Internet for schoolwork a policy outlining the proper formatting to use in Microsoft® Office

    asked by help?thanks
  7. agreement error

    Patient was brought to the operating room, induced in general endotracheal anesthesia, and we then placed him in the supine position on the operating room table.

    asked by rhonda
  8. algebra

    The product of the first ten prime numbers must be divisible by: F. 16 G. 18 H. 20 J. 22 K. 24 Please provide detailed explanation with answer (if possible) Thanks in advance.

    asked by ER
  9. Calculus

    A craftsman wants to make a cylindrical jewelry box that has volume, V, equal to 60 cubic inches. He will make the base and side of the box out of a metal that costs 50 cents per square inch. The lid of the box will be made from a metal with a more ornate

    asked by Shyan
  10. wcc

    Andres Michael bought a new boat. He took out a loan for $23,880 at 4.25% interest for 2 years. He made a $4,000 partial payment at 2 months and another partial payment of $3,000 at 8 months. How much is due at maturity? (Do not round intermediate

    asked by gislb
  11. math

    A square brass plate is 2 mm thick and has a mass of 1.05 kg. The density of the brass is 8.4 g/cm3. Calculate the length of the plate in centimeters

    asked by kudu
  12. analytic geometry

    The main cables of a suspension bridge uniformly distribute the weight of the bridge when in the form of a parabola. The main cables of a particular bridge are attached to towers that are 600 ft apart. The cables are attached to towers at a height of 110

    asked by Designing suspension bridge
  13. science/ velocity

    a body moves along a straight line,its distance from the origin at any instant being given by the equation x= 8t -3t squared, where x is in centimeter and t is in seconds. find the average velocity of the body in the interval from t=0 to t=1 sec,and in the

    asked by rhine
  14. maths

    a boy spend 2/7 of his pocket money on transport and 1/5 on sweet. what fraction of his pocket money does he spend on transport and sweet?

    asked by Edmond
  15. life orientation

    To what extent can intrapersonal conflict affect communication in relationship choice of career job performance when employed

    asked by mpho
  16. calculus

    An artificially created lake is bordered on one side by a straight dam. The shape of the lake surface is that of a region in the xy-plane bounded by the graphs of 2y=16-x^2 and x+2y=4. Find the area of the surface of the lake.

    asked by Akki
  17. maths

    Two circles with centers a and b of radii 3 cm and 4 cm res , intersecting at two points c and d such that ac and bc are two tangets of the circles, then length of common chord .

    asked by Phalgun
  18. physics

    A person walks 4.0 miles east and then makes a 50° turn to the right and walks another 2.0 miles. How far is she from her starting point?

    asked by alexis
  19. physics

    A fire helicopter carries a 664 kg bucket of water at the end of a 24.9 m long cable. Flying back from a fire at a constant speed of 44.2 m/s, the cable makes an angle of 41.6o with respect to the vertical. Determine the force of air resistance on the

    asked by Brad
  20. Anthropology

    Ms. Sue, Can you please give me your opinion. I would really I will appreciate it very much. Its on the gender and gender sexuality. Let me know if I need to do added anything else. The identities, inequality and equality.The Cangoan gender and sex

    asked by jimmy
  21. Physics 202

    A rail gun uses electromagnetic forces to accelerate a projectile to very high velocities. The basic mechanism of acceleration is relatively simple and can be illustrated in the following example. A metal rod of mass 10.0g and electrical resistance 0.100Ω

    asked by Tiffany
  22. Anthropology

    I need some serious Assisting. PLEASE!!!!I am doing a project on gender and gender roles including identities and the equality and inequality. The Culture is Native American. I need help a.s.a.p. This is my last week in this class. Please, please help me.

    asked by jimmy
  23. Science

    Which statement is true of an organ system? A. It supports all part of the organism. B. it is not necessary for the survival of the organism. C. One organ system can take over for another organ system. D. It has no connection with other organ system in the

    asked by Daisy
  24. English - Please read.

    I know what an epic simile is but I'm trouble finding two epic similes in these line I've given below. And I also need to know why I think the author used these two epic similes Please help! Here's the lines I have to find the two from : The Odyssey : Book

    asked by Marina
  25. art

    an artist loved to work with smooth, flowing paint that has vibrant color. Know she has many months to finish a commission. Her best choice for a material would be: 1. tempera paint 2. oil paint 3. acrylic paint 4. watercolor'

    asked by jon
  26. algebra

    if a school has 24 teachers and 480 students, what is the ratio of teachers to students?

    asked by stephanie
  27. algebra

    An artist framed a rectangular picture. The dimensions of the frame are 4x+3 and 3x+5. He is going to place the picture with the border of 2 inches. Then he wants to paint the border. What is the area he has to paint?

    asked by Alex
  28. algebra

    if 240 widgets cost $36, what is the cost of 180 widgets?

    asked by stephanie
  29. physics

    A string under a tension of 59.0 N is used to whirl a rock in a horizontal circle of radius 2.55 m at a speed of 20.0 m/s on a frictionless surface as shown in the figure below. As the string is pulled in, the speed of the rock increases. When the string

    asked by Anonymous
  30. concept development

    Which of the following process skills is generally more important for use with older children? A. Observing B. Communicating C. Classifying D. Predicting my answer I think is c.

    asked by Brittney
  31. concept development

    A basic rule in evaluating learning activities is to be sure A. the child has no prior knowledge. B. a variety of science process skills are used. C. the strategies are limited. D. the textbook provides step-by-step photos. my answer is b.

    asked by Brittney
  32. cconcept development

    When a teacher chooses learning objectives for a child, which question should be asked? A. What should Kelly learn next? B. Where's Kelly in the learning process? C. Do the plan and materials fit my lesson? D. Has Kelly learned what was taught? a.

    asked by Brittney

    What is the value of p? A right triangle with angles measuring 45, 45 and 90 and a leg measuring P and hypotenuse measuring 44 22 22 sqrt 2 44 44 sqrt 3 It always helps to know how...thanks

    asked by Anonymous
  34. College Algebra

    Flight of a Ball If a ball is thrown upward at 96 feet per second from the top of a building that is 100 feet high, the height of the ball can be modeled by S(t)=100 + 96t -16t^2 feet, where t is the number of seconds after the ball is thrown. How long

    asked by Bridgett
  35. Science

    A particular ecosystem in Georgia can support a maximum population of 100 bluebirds which of the following would allow hundred 20 bluebirds to live together in this ecosystem? (a. Human activity disrupting the nesting out of a predator hawk) (B. Flooding

    asked by Ruby :)
  36. Science

    Getting Oxygen 1) Name the components of the respiratory system in the order incoming air would encounter them during breathing. :Trachea,pharynx,larynx,alveoli,bronchi. :Bronchi,larynx,alveoli,trachea,pharynx. :Larynx,trachea,bronchi,pharynx,alveoli.

    asked by TheLOUDEST_0430
  37. physics

    An object 5 cm high is placed at a distance of 60 cm in front of a concane mirror of focal length10cm .Find the position and size of image

    asked by sumit
  38. Social Studies

    1 which statement best describes why constitutions are needed? A Constitutions are needed so that governments don't get carried away with taxes B Constitutions are needed because all of the laws have to be written down somewhere. C Constitutions are needed

    asked by BUBBLES
  39. math

    The size of an interior angle of a regular polygon is 3x° while its exterior angle is (x- 20)°. Find the number of sides of the polygon

    asked by kudu
  40. Organic Chemistry

    A 1.0 gram sample of aspirin will dissolve in 300 mL of water and in 17 mL of chloroform at 25 deg C. a. What is the solubility of aspirin in each solvent expressed in g/mL? (show your calculations) I don't know where to start, does the molecular weight

    asked by Kyle
  41. economics

    Can someone help me out with this multiple choice question in AP Macro? "Congress votes to substantially increase the minimum wage. The determinant causing the shift in this scenario is: A. price B. productivity C. resource cost D. political or

    asked by phoebe
  42. math

    A particle moves along straight line such that its displacement S meters from a given point is S = t^3 – 5t^2 + 4 whee t is time in seconds. Find (a) The displacement of particle at t = 5 (b) The velocity of the particle when t = 5 (c) The values of t

    asked by kudu
  43. Science

    I need an acrostic poem for Balanced Forces and Unbalanced Forces!

    asked by Anonymous
  44. Health

    ________ causes contraction of the smooth muscle in the wall of the uterus. It also stimulates the ejection of milk from the lactating breast.

    asked by misha
  45. science

    what is an example of fundamental quantity between viscosity,tension,force,weight or non of the above

    asked by pontsho
  46. statistics

    S) Suppose we want to determine the (binomial) probability (p) of getting 5 heads in 15 flips of a 2-sided coin. Using the Binomial table in the appendix of the text, what values of n, x, and p would we use to look up this probability, and what would be

    asked by slomomo
  47. chemistry

    Why material properties vary in spite of the similarity in crystalline form?

    asked by abeer
  48. math

    If a person has 56 pencils n 37 more and pens how many pens do she has

    asked by shunda
  49. maths

    how many terms are there in an arithmetric sequence if it has a common difference of 3 , a last term of 30 and the sum of its terms is 135

    asked by john
  50. English

    I'm sorry to ask this again but I still don't know what to put as examples of hope and hopelessness from Act One in A Raisin in The Sun

    asked by Amy
  51. physics SOS

    a 62.8 kg astronaut is floating toawrd the front of her ship at .16 m/s relative to the ship. she wishes to throw away the 2.9 kg book she was carrying. what should the speed of the book be to achive her goal?

    asked by Anonymous
  52. Calculus

    If f(x) = x4 + 6x,find f'(x).

    asked by Tay Tay
  53. SS

    What are the similarities between Africa north of the equator and south of the equator?

    asked by Anonymous
  54. physics

    Toby is jogging at a constant speed of 3 m/s along a winding path. He is accelerating even though he is going at a constant speed. how is this possible? please help..

    asked by Aileen
  55. Physics

    how does the value of V relate to V1 and V2?

    asked by Ly
  56. statistics

    In testing the hypotheses H0: = 0.40, H1: > 0.40 at the 5% significance level, if the sample proportion is .45, and the standard error of the sample proportion is .05, the appropriate conclusion would be

    asked by Margot
  57. Math

    You have a pizza that's 6 cool slices if you eat 4 .what it what is the angle measure of doing fortune of pizza in degrees

    asked by Ricardo
  58. Chem

    What pairs of ions produce similar colours in the flame test? Use your periodic table of elements to explain the reason for this. I think it's the different groups of elements, but I'm not sure.

    asked by Al
  59. Algebra


    asked by M
  60. science

    the change in velocity takes place in 10 sec interval. What is the magnitude, the algebraic sign and the direction of the average acceleration in each interval? At the beginning of the interval a body is moving to the right along the x-axis at 5 ft/sec,

    asked by rhine
  61. History

    How was the West drawn closer to the North and the South further isolated? Why did an increase in productivity lead to an improvement in transportation technology ?

    asked by Amy
  62. life orientation

    by means of a practical example. describe the conflict that exist between the should and want as a source conflict

    asked by tiny
  63. Equivalent fractions

    Equivalent fraction for 5/6

    asked by Dede
  64. math

    every container of fruit salad contains 1/3 of an apple. how many whole apples are there in 6 containers or fruit salad what should i do

    asked by Anonymous
  65. physics

    38. A rock of mass 0.400 kg is released from the surface and sinks in the ocean. As the rock descends it is acted upon by three forces: gravity, buoyancy, and drag. The buoyancy is an upward force equal to half its weight. Drag from the water can be

    asked by Danny
  66. Calculus

    Calculate the area of the bounded region between the curves y^2=x and 3y = -3y + 9 ?

    asked by Akki
  67. physics

    43. A block of mass 2.00 kg rests on a ramp tilted at 25.0°. Coefficients of friction for the block/ramp: μs = 0.300, μk = 0.100. A string passing over a high quality pulley connects the block with a bucket as shown below. The bucket contains sand but a

    asked by Devin
  68. english check answers

    Over the past ten years more than two dozen athletes have died from the medical condition known as heatstroke. Heatstroke occurs when the body’s internal temperature becomes so elevated that its cooling system begins shutting down. Who is most at risk?

    asked by Robb4301
  69. physics

    Two blocks are connected by a lightweight cord that passes over a frictionless, massless pulley. The bottom block has a mass of 2.00 kg and the top block has mass 0.500 kg. The coefficient of kinetic friction at each sliding surface is equal to 0.10. The

    asked by Cali
  70. calculus A

    A particle moves according to a law of motion s = f(t) = t3 - 12t2 + 21t, t 0, where t is measured in seconds and s in feet. v(t) = 3t^2 - 24t 21 a(t) = 6t - 24 e) Find the total distance traveled during the first 8 s. i) When is the particle speeding up?

    asked by sohee
  71. Biology

    What happens as a result of insertion (the mutation)?

    asked by bobbie
  72. Math

    if 12 ft of ribbon is cut into pieces that are 2 1/4 ft long,how much ribbon is left over?

    asked by Tiffany
  73. math

    It costs $12.50 to see a movie at a theater near Jason's house. It costs only 1.95 to rent a DVD from an online service. A DVD player costs $125. To the nearest whole number, how many movies must Jason watch on DVD instead of at the theater before he

    asked by priyanka
  74. Science

    Q1. Why is the shape of the nerves important in the nervous system? Q2. Which structure is more complex, a tissue or an organ? How do you know?

    asked by Daisy
  75. history

    Can charismatic leadership evolve into transformational leadership?

    asked by SHarday
  76. law

    Why does charismatic leadership sometimes lead to disastrous negative consequences?

    asked by SHarday
  77. religion

    For silent reading during solat there is an opinion that the reading must be heard by his ear.Is it true?If it is not true what are the arguments against it?(Normally the person beside him will hear his vocalization and will disturb his solat)

    asked by amaliena
  78. maths

    Please help solve for x A.7^x+(4)(7^x) =245 B.x-|x+20=0 C.1+3/(x+1)=x Simplify D.(|24 +2|6 + |54 / |96 - |6 Keys: |=square root, /over or divided by

    asked by lebogang
  79. algebra

    One number is twice a second number. The sum of those numbers is 45. Find the numbers.

    asked by lisa
  80. algebra/trig

    You need a 100 pounds of two types of candy that cost 50 cents per pound and 75 cents per pound. A.) Verify that your total cost is c(x)=0.50x + 0.75(100-x) thx a ton:)

    asked by favour
  81. AP Chemistry

    A student titrates 25.0 mL of a 0.100 M solution of acetic acid with a 0.100 solution of sodium hydroxide. Calculate the pH at the equivalence point.

    asked by Anonymous
  82. science

    A solution is prepared by mixing 90 ml of 5 M HCl and 30 ml of 8 M HNO3. Water is then added until the final volume is 1 L. Calculate the [H+], [OH-], and the pH for this solution.

    asked by polly
  83. philosophy

    Between the Buddha, John Locke, David Hume, and Derek Parfit, which philosopher has the most convincing account of personal identity?

    asked by Tay Tay
  84. math - ans.check

    Given function G(x)=-7/8(45-x), find x to nearest tenth, when G(x)=15 ____________________________________ I'm stuck on this question,i tries on my own but i couldn't get it right, plz help! 15=-7/8(45-x) -8/7(15)=45-x (-17.1428..)=45-x -> stuck at this

    asked by troy
  85. Chemistry

    How do I get the answer to ?mass, 200 cm3volume, 6.843 g/ml=

    asked by Rosalind
  86. Chemistry

    If all the H2O2 in 25mL of a 3% solution of H2O2 decomposed, calculate the diameter of a sphere that would contain the resulting O2 at 1 atm and 296K. I understand how to do the problem if I have moles but I am not sure how to get moles. I thought

    asked by Caroline
  87. calculus 3

    A golf ball is driven down a horizontal fairway with an initial speed of 55m/s at an initial angle of 25 degrees. (Assume the tee from which the ball is hit is of negligible height). a). how far does the ball travel horizontally b). when does the ball

    asked by Mark
  88. Statistics

    A population has u=100 and o=20. If you select a single score from this population, on average, how close would it be to the population mean? Explain your answer. I don't understand the question itself. Please help.

    asked by Luis
  89. Physics

    Sound of a certain wavelength is coming from within a room and passing through a rectangular door (a "slit"). If the width of the doorway is twice the wavelength of the sound, what is the diffraction angle è of the sound leaving the doorway? Please show

    asked by Tiffany
  90. physical

    I'm working on projectile motion and I am supposed to find the speed for this problem, however I'm having trouble setting up the problem. I'm not finding any help from the book either. A golfer hits a shot to a green that is elevated 2.50 m above the point

    asked by Carissa
  91. English

    Which sentence is capitalized correctly? A.) James Monroe was the fifth president of the United States. B.) James Monroe was the Fifth President of the United States. C.) James Monroe was the Fifth president of the United States. D.) James Monroe was The

    asked by Cassie
  92. Physics

    I'm having trouble finding the speed to the problem. My book isn't helping much either. A golfer hits a shot to a green that is elevated 2.50 m above the point where the ball is struck. The ball leaves the club at a speed of 18.7 m/s at an angle of 51.0˚

    asked by Carissa
  93. Physics

    suppose you had a circuit with three resistors in series and you measured I=7.0 milliamps; V = 14.7 volts; V1= 3.5 volts and V2 = 1.4 volts. What would be the voltage across the third resistor? What would its resistance be?

    asked by Anonymous
  94. physics

    with what velocity must a ball be thrown in order to achieve the height of 50 ft.? and how long will it stay in the air?

    asked by rhine
  95. Algebra


    asked by Satish
  96. Pre-Calculus

    Q.Determine the sum of each infinite geometric series. t_1= 8 r = -2^1/2 ---------------------------------------- A.This is a divergent series because the absolute value of r is greater than 1. ---------------------------------------- Q. The first term of

    asked by Lucina
  97. Chemistry and physics

    What causes a red glow when the iron and sulphur mixture is heated?

    asked by Maureen
  98. math

    how do i do this equation ? -158=-2x+ 2(7x -7) . thank you

    asked by sam
  99. chemistry

    What pairs of ions produce similar colours in the flame test? Use your periodic table of elements to explain the reason for this. The pairs with similar colours were Ba2+ and Cu2+, and Sr2+ and Li+. Ba and Cu had light green-ish colours, and Sr and Li had

    asked by alyssa
  100. Music

    If you were to add a Dor to a quarter note in four-four time, how many beats would the dotted quarter note occupy? 1. Half a beat 2. One beat 3. One-and-a-half beats 4. Two-and-half beats

    asked by Help!
  101. law

    what are four charismatic theories?

    asked by SHarday
  102. Calculus: Optimization

    I have no idea how to approach this problem, if someone knows just how to relate h, r with H,R, that would be extremely helpful and I can workout the rest! Thank you in advance. Given a right circular cone, you put an upside-down cone inside it so that its

    asked by Jazz
  103. English

    Would these be good examples of hopelessness, hope, and realism in A raisin in the Sun 1. hopelessness Mama :Well whether they drinks it or not ain't none of my business. But whether I go into business selling it to 'em is, and I don't want that on my

    asked by Amy
  104. life orientation

    Evaluate he extent to which peer pressure can impact negativity on intrapersonal conflict.give two well explained examples to support answer

    asked by malompo
  105. math

    If a city has an atmospheric pressure of 12.27 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round your answer to the nearest foot.)

    asked by dee dee
  106. Pre-calculus

    Find the first two terms of a geometric sequence if t_3+ t_4 = 50 and t_4 + t_5 =100? t3= a(r^2) t4= a(r^3) t5= a(r^4) a(r^2)+ a(r^4)= 100 ------------------------- a(r^3)+ a(r^4) = 50 ar^3 ----- = 2 ar^2 r = 2

    asked by Lucina
  107. Life orientation

    How intrapersonal conflict can lead to emotional stress

    asked by Aluwani
  108. math

    35. Aaron wants to find an function that relates the price of a pizza to its size. He knows that this function need s to be non- linear. Which function below should he use? A. y=4piex B. y=pie(x-3) C. y=pie(x-3)^2 D. y=pie(x-3)^2+3(x+7)

    asked by Max
  109. Physics

    Two boxes, A and B, are connected to each end of a light vertical rope. A constant upward force 90.0N is applied to box A. Starting from rest, box B descends 11.0m in 3.50s . The tension in the rope connecting the two boxes is 30.0N a) What is the mass of

    asked by Jordan
  110. chemistry

    In a 1L beaker, 203mL of 0.307 M ammonium chromate was mixed with 137mL of 0.269 M chromium(iii) nitrite. 3(NH4)2CrO4 + 2Cr(NO2)3 -> Cr2(CrO4)3 + 6NH4NO2 If the percent yield of the reaction was 88.0 %, what mass of solid product was isolated?

    asked by carolin
  111. Health

    What has the society done concerning the current problems with teen pregnancy?

    asked by Anonymous
  112. Algebra

    If a quadratic has a vertex at (-2,2) and passes through (-1,0) what is its equation in standard form? A. y = -2(x-2)^2 + 2 B. y = -2(x+2)^2 + 2 C. y = -(x+2)^2 - 2 D. y = (x+2)^2 + 2 Is the answer B?

    asked by Jake
  113. chemistry

    In a 1L beaker, 203mL of 0.307 M ammonium chromate was mixed with 137mL of 0.269 M chromium(iii) nitrite. 3(NH4)2CrO4 + 2Cr(NO2)3 -> Cr2(CrO4)3 + 6NH4NO2 If the percent yield of the reaction was 88.0 %, what mass of solid product was isolated?

    asked by carolin
  114. mathematics literacy

    There are seven red peppermints in a packet of 22 peppermints.what percentage of the peppermints are red?

    asked by kaycee lee
  115. 3rd grade math

    mrs. lens wants to put a ribbon around the edge of a pillow. which tool and unit should she use to measure the perimeter of the pillow? measuring tape or ruler or yard stick?

    asked by kris
  116. math

    A perpendicular to the line -4x +3 = 0 point (8, 5). Determine its equation x = 4/3 undefined y = 5

    asked by David
  117. Check my answers SS

    Which of the following state program areas consumes the largest part of the executive budget? (1 point) human services education *** natural resources transportation 2. Which state department is responsible for mental health-related issues and welfare? (1

    asked by XenaGonzalez
  118. algebra

    an electron cuts a 12 ft piece of into two pieces. one piece is 7 ft longer than the other how long are the pieces?

    asked by lamiracle
  119. math

    I'm doing my math hw, what does the sign ' mean for sets? Thanks

    asked by Eric
  120. Physical Science

    A rock is dropped off a 20m tall cliff. How long does it take to get to the bottom of the cliff? What is the instantaneous velocity right before it hits the bottom of the cliff?

    asked by Alex
  121. physics

    You are sitting in a car going 20 m/s relative to the ground and decide to throw a ball backwards with a velocity of 4m/s relative to your car. A person in another car behind you sees the ball moving towards him with a velocity of 2.50 m/s relative to his

    asked by jyothi
  122. English

    Sorry for asking a lot of questions. But what can I write as an example of realism in A a Raisin in the Sun I'm having trouble finding an example of it

    asked by Amy
  123. algebra

    the midpoint of a line segment is (3,4). one of the endpoints of that line segment is (7,4). what is the other endpoint?

    asked by stephanie
  124. PNU

    An element has a body-centered cubic(bcc) structure with a cell edge of 288pm the density of the element is 7.2g/cm3. How many atoms are present in 208g of element

    asked by abeer
  125. science

    Which explains how the greenhouse effect and greenhouse gases can affect global temperatures? A. The more greenhouse gases that are in the atmosphere, the more heat will be trapped, thereby increasing global temperatures. B. The more greenhouse gases that

    asked by Chloe
  126. Physics

    Suppose you had a circuit with three resistors in series and you measured I=7.0 milliamps; V = 14.7 volts; V1= 3.5 volts and V2 = 1.4 volts. What would be the voltage across the third resistor? What would its resistance be?

    asked by Dean
  127. math

    In the geometric progression, the first is a and the common ratio is r. The sun of the first two terms is 12 and the third term is 16 Determine the ratio (ar^2)/(a+ar) If the first term is larger than the second term, find the value of r.

    asked by David
  128. chemistry

    By titration, 26.7 mL of aqueous H2SO4 neutralized 26.2 mL of 0.028 M LiOH solution. What was the molarity of the aqueous acid solution?

    asked by Ki-Ra
  129. algebra

    jake and jessie are standing next to each other in the sun. if jake's shadow is 48 inches long, and he is 72 inches tall, how long is jessie's shadow, in inches, if she is 66 inches tall?

    asked by melvin
  130. math - relations and functions

    What is mean , Write a set of 10 ordered pairs that represent a function?

    asked by jo
  131. algebra

    a bug crawls clockwise around the outside rim of a clock from 12 to 4 and travels 7 inches. if a second bug crawls around the outside rim from 6 to 11, in the same direction, how many inches did the bug crawl?

    asked by melvin
  132. math

    3/8jof the cast in a musical hE TO SING. WHAT FRACTION OF THE CASt DOES not have to sing?

    asked by john
  133. math

    Find the value of θ between 0° and 360° satisfying the equation 5 sin θ = 4 θ= sin-1(4/5) = 53.13, 143.13

    asked by kudu
  134. History

    Who were the "antis" (ant-imperialists) and why were they opposed to U.S. expansion? (HINT: different people had very different reasons.) Try to put yourself in the shoes of someone living in the 1890s: do you think you would have supported or opposed

    asked by Tay Tay

    What are the angle measures of the triangle? A right triangle with a hypotenuse measuring 14sqrt3 and legs measuring 7sqrt3 and 21 30°, 60°, and 90° 45°, 45°, and 90° 60°, 60°, and 60° They cannot be determined.

    asked by Anonymous
  136. Calculus

    Find an equation of a line tangent to y = 2sin x whose slope is a maximum value in the interval (0, 2π]

    asked by Sara
  137. algebra

    What do you get if you drop a grand piano down a mine shaft

    asked by Anonymous
  138. Math

    Three boxes each contain a number of billiard balls. One box contains only even-numbered balls, one box contains only odd numbered billiard balls, and the third box contains a mixture of odd and even numbered balls. All the boxes are mislabeled. By

    asked by Erika
  139. oil prices

    supply and demand affect the price of oil

    asked by bella
  140. Society

    What are the individual and social implications of teenage pregnancy?

    asked by Anonymous
  141. math

    the sum of the first four terms of a geometry series is 15 and the sum of the next 4 terms is 240.determine the positive constant ratio.

    asked by niky
  142. algerbra

    Find the distance between points P(3,-6) and Q(6,4). Round to the nearest tenth.

    asked by gerald
  143. chemistry

    Consider the reaction of 14.20ml of 0.141 M H3PO4 and 0.0521 M Ba(OH)2. 2H3PO4 + 3Ba(OH)2 ->Ba3(PO4)2 + 6HOH What volume of Ba(OH)2 is required to completely react with the H3PO4?

    asked by carolin
  144. physics

    A horizontal force of 150 N is used to push a 45.0-kg packing crate a distance of 5.75 m on a rough horizontal surface. If the crate moves at constant speed, find each of the following. (a) the work done by the 150-N force (b) the coefficient of kinetic

    asked by Sierra
  145. chemistry

    Consider the reaction of 14.20ml of 0.141 M H3PO4 and 0.0521 M Ba(OH)2. 2H3PO4 + 3Ba(OH)2 ->Ba3(PO4)2 + 6HOH What volume of Ba(OH)2 is required to completely react with the H3PO4?

    asked by carolin
  146. Calculus Chain rule

    How can derive this function?f(x) = 2/(9x^5+1)^5 The answer is The answer is -450x^4/(9x^5+1)^6 Can you please show why? Thank you

    asked by Tom
  147. Math 222

    18z plus 45 plus z^2 *My addition sign is not working*

    asked by Monica
  148. Math

    I am asked to graph a triangle with the vertices (-3, 2), (5, 6), and (6, -4) after performing a dilation about the origin of scale factor 4. What does "about the origin" mean? Is this the same as just multiplying the ordered pairs by 4? Are the new

    asked by Anonymous
  149. Math

    Identify the geometric figure that each object represents. _____1. Tip of the hair _____2. Chalkboard _____3. Ceiling _____4. Grain of sand _____5. Mole _____6. Flaslight _____7.String _____8.Wall _____9.Tip of a pen _____10.Edge of a box

    asked by Trixsy Joy
  150. kayli

    why did a portion of the tabletop get cold when natasha placed her drink on the table?

    asked by Anonymous
  151. Math 222

    ). a^4b plus a^2b^3

    asked by Monica
  152. math

    The Position of two A and B on the earth’s surface are (36°N, 49°E) and (360°N, 131°W ) respectively. (a) The difference in long between town A and town (b) Given that the radius of the earth is 6370, calculate the distance town A and town B. (c)

    asked by kudu
  153. Math

    Frank paid very well finance rate of 1.5% on the first $500 and 1% at any amount above $500 how much did he pay at the unpaid balance was $741.23

    asked by Anonymous
  154. Mathematics


    asked by Noma
  155. Algebra

    Find five solution sets for the linear equation 3x - 5y = 15.

    asked by Elizabeth
  156. math

    A real estate agent makes 4.5% commission on every property she sells. How much commission does she make on a sale of a house for $132,500.00? Don't understand how to do the problem. Can you help me? Thank you

    asked by dave
  157. social studies help please

    Which of the following was NOT a reason why there was less industrial development in the South than in the North? A.because the rockiness of southern land made it difficult to develop railroads. B. because there was a lack of capital in the South. C.

    asked by anonymous
  158. math

    Show that the series 1 + 2x/5 + 3x^2/25 + 4x^3/125 + convergent if -5

    asked by tolu
  159. Statistics

    Approximately 6% of the male population is color blind. If a random sample of 250 male adults is tested for color blindness, what is the probability that at least 10 but no more than 20 will be color blind?

    asked by Dmitivch
  160. Chemistry

    What is the name of the substance with formula Cu(H2O)6SO4?

    asked by Brian
  161. Technology

    Is there a app that shuts off iPhone without pressing home or sleep button?

    asked by Kimberly
  162. math

    Gary measured the middle school and made a scale drawing. He used the scale 1 inch = 5 feet. The gym is 85 feet long in real life. How long is the gym in the drawing?

    asked by Anonymous
  163. math

    Henry is attending a rodeo in Union County. The nearest airport is in Vindale, which is 33 miles away. On a map, the rodeo grounds and the airport are separated by 3 inches. What scale does the map use?

    asked by angelica
  164. Math

    A fuel dealer makes a profit of shillings 520 for every 1000 liters of petrol sold and shillings 480 for every 1000 liters of diesel sold. In a certain month the dealer sold twice as much diesel as petrol. If the total fuel sold that month was 900,000

    asked by David
  165. chemistry

    Predict if a precipitate will form when 20.00 mL of the 50% saturated solution is mixed with 20.00 mL of 0.0100M of the following solutions.? the saturated solution is : BaCO3, it has the Ksp of 5.1 x 10^-9 the solubility is 7.1 x 10^-5 M. I don't know how

    asked by Crystal
  166. Pre ALGEBRA

    HELP PLS MS SUE. Find the surface area of a sphere with a radius of 8 cm.

    asked by Oscar
  167. imp

    Is dirt an abstract or concrete and why?

    asked by hanan
  168. science

    a car travels first one third with speed of 10km/hr,next one third distance with 20km/hr.What is the average of car for whole journey

    asked by ashwini
  169. AP CHEM

    A solution formed by mixing 13.0 mL of 0.013 M Ba(OH)2 with 31.0 mL of 7.0 ✕ 10-3 M NaOH. Calculate [OH-]

    asked by Jordyn
  170. physics

    An object has a velocity of 5.00 m/s at an angle of 30.0˚ north of east. If we define east as the +x direction and north as the +y direction, what is the magnitude of vy?

    asked by alexis
  171. physics

    An object travels at 5.00 m/s in the +x direction and 4.00 m/s in the +y direction. What is the magnitude of its velocity?

    asked by alexis