Questions Asked on
January 29, 2014

  1. math

    i was doing the mean theorem for this problem: (x+4)^2 (x-3) on [-4,3] i got to: 3x^2 + 10x-8=7 someone helped me out and told me the answer was (-5 +/- sqrt(70))/(3) but i don't know how to get to there, can someone please explain to me how to get to this

    asked by eric
  2. writing

    i need help finding mistakes in this paragraph my teacher said there's 9 can you help me find it? The assignment is to First correct it the mistakes in the paragraph. than re- wright it the passage correctly in cursive. I'll show you, Yesterday was the

    asked by Gila
  3. physics

    A toy rocket is launched at an initial velocity of 50 m/s at an angle of 75° with the horizontal. Write parametric equations to represent the path of the rocket. (A)x = 50t cos 75°y = 50t sin 75° – 4.9t2 (B)x = 50t cos 75°y = 50t sin 75° – 16t2

    asked by physics
  4. Literary term

    What is the definition of universality in regard to literary term? What is one example of this ?

    asked by Anonymous
  5. Algebra Assignment

    Please check my work on this part of the assignment. Medical x-rays, with a wavelength of about 10^-10m, can penetrate completely through your skin. a. ultraviolet rays, which cause sun burn by penetrating only the top level of skin, have a wavelength

    asked by Anonymous
  6. algebra

    A fruit drink is 15% white grape juice. Use a system of equations to find the amount of pure white grape juice and the amount of this fruit drink needed to make 27 gallons of a new drink that is 21% white grape juice. Round to the nearest tenth

    asked by Anonymous
  7. Algebra 1A

    What are the four steps for solving a problem?

    asked by Lola
  8. compressors

    We have a compressor that has two problems ¡K the engine is constantly loaded to maximum, and the life of compressor valves is short. It is suggested to reduce the lift on the compressor valves. What problem would this help? Why would this help? What

    asked by Tony
  9. Chemistry

    The pH of a solution prepared by mixing 325 mL of 0.25 M NaOH and 675 mL of 0.20 M HClO3 is 6.50. Solve for Ka.

    asked by Snoop Lion
  10. ENGLISH

    Paraphrase the sentance,"to cut a long story short,one day i decided to be a man about my feelings."

    asked by THABO
  11. chemistry

    calculate the number of calcium ions present in calcuimchloride

    asked by De Noch
  12. chemistry

    calculate the number of calcium ions present in 11.1 grammes ofcalcuimchloride(1mole=6.02*10^23)

    asked by De Noch
  13. Extended mathematics

    In the diagram ,N lies on a side of the square ABCD,AM and LC are perpendicular to DN,prove that ADN=LCD.

    asked by FARHAN
  14. Extended mathematics

    In the diagram,LMN=ONM=90 degree.P is the mid point of MN,MN=2ML and MN=NO,Prove that (a)the triangles MNL and NOP are congruent

    asked by FARHAN
  15. english

    What is a good thesis statement according to the disagreement of gay marriage?

    asked by Judy
  16. ENG1511

    Hi, I need help please. I have to write 3pges of an argumentative essay. I have to provide heading which summaries my point of view and then write a convincing argument in support of my views. The topic is:- Social media have made our lives easier. Write

    asked by Hloniphile
  17. lit

    After the death of Curly in The Call of the Wild, Buck concludes that no fair play exists in his world and that he will never go down in a fight. The theme illustrated here is apparently derived from London's interpretation of

    asked by Anonymous
  18. math

    point M is locted at (-4,3) and point N is located at (-2,11).find the line segment of MN.

    asked by mike lopez
  19. physics

    A wave travels a distance of 20m in 3s. The distance btw successive crests of the wave is 4cm. What is the frequency of the wave?

    asked by bisi
  20. algebra

    Chad rides 2 hours total on a bicycle trip into the country and back. He rode out at the rate of 18 mph and returned at the rate of 22 mph. How far into the country did Chad ride

    asked by vilawn
  21. geography

    Hi, I desperately need state assistance in connection with the homework of my Son,-Complete a SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis of sea turtles ..I obviously do not expect that someone will do it for him.The problem with the

    asked by kina
  22. chemistry

    If someone swallows ammonia, what would they drink to counteract it? Water, Milk, Orange Juice, Tea

    asked by Gatorgirl
  23. physics

    What neutralizes acid rain?

    asked by Gatorgirl
  24. Finance

    An investment bank has created a CDO by pooling 100 bonds which will either pay off $0 (in case of default) or pay off $1. The CDO has three risk classes rated AAA, BBB, and CCC with face values of $70, $20, and $10, respectively. The current prices of the

    asked by Nabil
  25. maths literacy,business,economics,accounting

    which career to look into when doing those subjects?

    asked by buhle
  26. history

    Please please check my answers? and correct if needed? Thanks! 1. Which of the following represents an argument for annexing Texas? (1 point) Another slave state would be added, causing political debate. Texas was an independent state, so a treaty would

    asked by Melissa
  27. Maths lit,geo,science,l.o,life science,eng

    Im doing those subjects and i would like you guys to help me out...what carrer can i do...im a matriculant im so stressed

    asked by Ntombifuthi
  28. chemistry

    osmotic pressure of a solution containing 7g of protein in 100ml of solution is 20mmhg at37celsius calculate molecular mass of the protein

    asked by himanshu
  29. Math- Vectors

    Whta is the equation that has the same x-intercepts as L1:[x,y,z]= [3,5,-1] + t[4,-10,2] and is perpendicular to L2:[x,y,z]= [5,8,-2] + s[3,7,1]

    asked by Tristan
  30. math

    Quinn used a scale drawing to build a soccer field near his school. Initially, he wanted the field to be 28 yards long and 17.5 yards wide. He decided to change the length of the field to 36 yards. If the width is to be changed by the same scale factor,

    asked by Kaitlyn
  31. Science

    1. Which of the following is true about mixtures? (1 point) Mixtures consist of two or more substances chemically combined. Mixtures cannot be separated by physical means. Mixtures consist of only one kind of atom. ***Mixtures have two or more substances

    asked by TTR+S<3
  32. chemistry

    Ammonium chloride and sodium nitrite react to form sodium chloride, water and nitrogen gas. If 6.33 moles of ammonium chloride react with sodium nitrite, how many grams of sodium chloride will be produced?

    asked by Julie
  33. math

    Hello I v got 4 question with answers .. Could somebody check that for me,please. 1.If two angles of a triangle add up to 110^what is the size of the third angle? I think is 55 2.Three children shared £6 Bred received 1/4 Lynsey was given 1/3 and James

    asked by DAMIAN
  34. Math

    How? Ann is painting a fence that is 8 1/4 times as wide as she is tall. If Ann is 5 1/2 feet tall, how many feet wide is the fence? I so confused???? Any help would be appreciated - Thank You

    asked by Jeremy
  35. Math

    A song plays 12 times each day. If the song is 4 1/5 minutes long how many minutes a day is the song played? CAN ANYBODY HELP????

    asked by Cassidy
  36. physic

    Two volleyballs, each of mass 0.300 kg, are charged by an electrostatic generator. each is attached to an identical string and suspended from the same point, as shown in Fiq.2. They repel each other and hang with separation 50.0 cm. The length of the

    asked by sila
  37. Physics

    A car experiences a constant acceleration of 2.3 m/s2. How long does it take (in s) for the car's speed to increase from 6.6 m/s to 17.9 m/s?

    asked by Chris
  38. science(check answers)

    1. A 60-kg cheetah reaches a speed of 30 m/s as it chases its prey.What is the kinetic energy of the cheetah? A.900 j B. 1,800 j C.27,000 j D. 54,000 j

    asked by annabelle
  39. social studies---check 1 question pls

    6. Whose mill launched the factory system? (1 point) James Monroe Eli Whitney ***Samuel Slater*** Francis Cabot Lowell help pls

    asked by TTR+S<3
  40. Math

    If a gas water heater was able to produce 25000 btu/hr, how long would it take to heat 30 gal of water from 70f to 140f

    asked by Shannon nault
  41. science(check answers)

    2.how would the kinetic energy of a 12,000-kg train compare with the kinectic energy of a 900-kg compact car if both were traveling at the same speed? A.the trains kinectic energy would be equal to the cars kinectic energy. B.the trains kinectic energy

    asked by annabelle
  42. SOCIAL STUDIES

    10. Why did sectional differences grow in the 1820s? (1 point) because of the Adams-Onis Treaty because of differing views of foreign policy because of the decline of the Federalist Party ***because of regional differences, especially those concerning the

    asked by TTR+S<3
  43. Math

    1 divided by 1/3 = what?

    asked by Anonymous
  44. Physics

    Please help! 400 calories of heat are added to 40grams of water at 20celcius . What's the final temp reached ?

    asked by Kinley
  45. science (check answers)

    4.how does the kinectic energy of a 10,000-kg train traveling at a speed of 10 m/s compare with that of a 2,600-kg compact car traveling twice as fast? A.the train has less kinectic energy than the car. B.the train has more kinectic energy than the car.(I

    asked by annabelle
  46. Chemistry

    I have this problem: How much heat energy is required to raise the temperature of 0.365kg of copper from 23.0 ∘C to 60.0 ∘C? The specific heat of copper is 0.0920 cal/(g⋅∘C). I did the equation using formula Heat= mass x change in temperature x

    asked by mysterychicken
  47. Science

    A ball is thrown upward at 20 metres per second off the top of a building that is 12 m high. What is the height of the ball above the ground at its highest poin?

    asked by Nthabiseng
  48. Early childhood education

    An important aspect of socialization is helping children recognize, accept, sort out, identify, label, integrate, express, and cope with their a. satisfaction b. behaviors c. expression d. emotions i say it's d. emotions

    asked by li
  49. physic

    Two volleyballs, each of mass 0.300 kg, are charged by an electrostatic generator. each is attached to an identical string and suspended from the same point, as shown in Fiq.2. They repel each other and hang with separation 50.0 cm. The length of the

    asked by Anonymous
  50. L.A

    Locate the participle (not the entire participial phrase) and the word it modifies. Dressed in a cheap suit, John looked like my uncle Earl.

    asked by Nataliya
  51. Math

    Classify the triangle with side lenghts 4 4 and 4

    asked by The Guy
  52. social studies

    In the state of Louisiana is it possible for a presidential candidate to win the popular vote but lose the race. true or false ?

    asked by victoria
  53. science(1answer)

    4.how does the kinectic energy of a 10,000-kg train traveling at a speed of 10 m/s compare with that of a 2,600-kg compact car traveling twice as fast? A.the train has less kinectic energy than the car. B.the train has more kinectic energy than the car.(I

    asked by annabelle
  54. English

    I am writing a description of a boring teacher Here is what I have so far Miss Tedious (the most lacklustre teacher ever) was talking algebraic garbage but her voice just seemed a blur. Her eyes seemed to sag with an expression of dullness and lack of

    asked by Anonymous
  55. Math

    OK a pattern has 1 small square 1 3/4 on all sides middle has 5 1/4 on all sides large has 8 3/4 on all sides. I did'ent know how to do this now she wants to make the pattern 2 1/2 times bigger and show what will be the new lengths of the sides of the

    asked by Dawn
  56. physics

    What neutralizes acid rain?

    asked by Gatorgirl
  57. English

    Can someone check the opening of my story? I’m in a hospital bed with my mum gripping her hand onto mine. All I have endured is an extensive amount of excruciating agony of aching pain, within my joints. All that’s in my head is the constant thudding

    asked by Anonymous
  58. Response Evaluation (Writeacher!)

    Is this better? What other improvements do you suggest? Although it may be derivative and overly nostalgic, I think the 1993 film The Sandlot, directed by David M. Evans, is a genuinely sweet and hilarious adventure that that takes place upon a screen.

    asked by Anonymous
  59. College algebra

    Things did not go quite as planned. you invested $8,000, part of it in a stock that payed 12% annual interest. However the rest of the money suffered a 5% loss. If the total annual income for both investments was $620.

    asked by Kat
  60. physics

    A 3.90 kg block is in equilibrium on an incline of 27.5◦ . The acceleration of gravity is 9.81 m/s 2 . What is Fn of the incline on the block? Answer in units of N

    asked by bf
  61. Physics

    Snells law lab

    asked by Anonymous
  62. Calculus

    Consider the solid obtained by rotating the region bounded by the following curves about the line x=1. y=x,y=0,x=4,x=6 Find the volume So it would be pi (integral from 3 to 6) of ((1-y)^2 -(1-0)^2) right? so then you integrate it and get pi(Y^3/3-y^2) from

    asked by christina
  63. Environmental Science

    An effective approach to preventing future shortages of usable water should focus on?

    asked by Destinee Boydston
  64. arone moeti

    if yor-100m in mine a shaft and the lift take you down another 200m calculate your new level bank account is at -130and deposit R55 later draw R20 new bank account

    asked by nketu alice
  65. Algebra

    A rectangular dog pen has a perimeter of 10 yd and a width of 2yd. What is its area?

    asked by Sam
  66. physics

    A 230 kg steel crate is being pushed along a cement floor. The force of friction is 480 N to the left and the applied force is 1860 N to the right. What is the acceleration of the crate?

    asked by roman
  67. math

    a quadrilateral has angles measuring 27, 56, and 80. what does the fourth angle measure?

    asked by jaden
  68. am history

    General Grant's army came closest to defeat in the West as a result of a surprise Confederate attack at the Battle of

    asked by jane
  69. Physics

    Problem 1 (80 points) Consider a spring of equilibrium length L, lying horizontally in a frictionless trough. The spring has cross sectional area S perpendicular to its length. The trough constrains the motion of the spring so that any wave propagating

    asked by Brandon
  70. Social Studies

    What events in hitler's childhood lead him to become a dictator? Please help and thank you so much.

    asked by Marissa
  71. Math

    How would you solve each system by the substitution method? 1. Y=6x-5 Y=-x+9

    asked by Anonymous
  72. math

    In Asheville North Carolina in August the temperature is an even number less than 40 that has the same number of tens and ones Ans: 34

    asked by CC
  73. Social Studies

    How is the pharaoh an example of a polytheism ruler.?

    asked by Not Available
  74. physics

    A small block is released from rest at the top of a frictionless incline. The distance from the top of the incline to the bottom, measured along the incline, is 3.60 m. The vertical distance from the top of the incline to the bottom is 1.36 m. If g = 9.80

    asked by Tara
  75. geography

    What are the major challenges facing the Balkan countries?

    asked by austin
  76. am history

    Which of the following nineteenth -century inventors is associated with Menlo Park in New Jersey? A. Gustavus F. Swift B. Alexander Graham Bell C. Cyrus W. Field D. Thomas Alva Edison

    asked by jane
  77. olgc

    a circle is divided into 18 equal parts. how many degrees is the angle for each part? how many degrees is the angle for the 5 parts?

    asked by isabel
  78. Calculus

    write in parametric form the equation of the line that joins (1,-2) and (3,0)

    asked by Amy
  79. Linear Algebra!

    Write in parametric form the equation of the line that is perpendicular to r=(2i + 4j) + (i - 2j)t and goes through (1,0)

    asked by Liz
  80. Statistic

    A basketball player makes 80% of her free throws. Recently during a very close game, she shot 5 free throws near the end of the game and missed 3 of them. The fans booed. What is the probability of her missing 3 (or more) free throws out of 5? Set up and

    asked by bowershe
  81. math

    In asheville north carolina in August the temperature is an even number less than 40 that has the same number of tens and ones Answer: Could it be 22 4 tens and 0 ones = 4 2 tens and 2 ones = 4

    asked by CC
  82. Finite Math

    The total monthly cost (in dollars) of producing x thousand beanie babies is: C(x)= 250x + 5,000. a. What are the fixed costs? b. What is the marginal cost per beanie baby? c. What is the total cost of producing 100,000 beanie babies? d. What is the

    asked by TJLawson
  83. Spanish

    Are these correct? Answer the following questions using the present progressive. Be sure to answer with the same verb that is used in each question. 1. Creo que Xavier (1) _____ (2) __________ en la casa de sus padres mientras asiste a la Universidad.

    asked by Eric
  84. Calculus

    A particle starts at the point (5,0) at t=0 and moves along the x-axis in such a way that at time t>0 its velocity v(t) is given by v(t)= t/(1+t^2). a). Determine the maximum velocity of the particle. Justify your answer. b). Determine the position of the

    asked by Rasheda
  85. Response Evaluation (Urgent! Please, help me!)

    Should I revise anything? What improvements do you suggest? Although it may be derivative and overly nostalgic, I think the 1993 film The Sandlot, directed by David M. Evans, is a genuinely sweet and hilarious adventure that that takes place upon a screen.

    asked by Anonymous
  86. Health

    the patient received preventive medicine services. the physician's fee is $150. the patient's copayment is $10 (0f the $75 fee schedule). the payer reimburses the physician 80% of the $75 fee schedule.

    asked by Tisha
  87. Math

    If I has plots of (3,2) and (8,6) how would I find the area in square units

    asked by AJ
  88. Math/Algebra

    Delivery company charges $10 plus 40¢ per kilometer or part of a kilometer. Find the cost for a trip of: a.5 kilometers b.7.5 kilometers c.3.2 kilometers d.Graph the ordered pairs (kilometers, cost). Is this a function?

    asked by Judy Conrad
  89. math

    How do two fractions have a sum of exactly 1

    asked by Matt
  90. math

    In right triangle, the side opposite to right angle is called what? ANSWER FAST PLZ!!! THX

    asked by greg
  91. Finite Math

    A company claims that for selling x thousand beanie babies the monthly revenue (in dollars) is given by: R(x)= 290x. The monthly cost function is C(x)=250x + 5,000. Find the break-even point. Put the answer in context of the problem. (This is part of a

    asked by TJLawson
  92. am history

    During the bitter struggle over reconstruction policy, Congress overrode Johnson's veto of the

    asked by jane
  93. A & P

    A young man happens to spot an ex-girlfriend he's trying to avoid. Why does his mouth become dry? A. His cranial nerves shut down saliva production. B. His central nervous system shuts down saliva production. C. His sympathetic nervous system overrides the

    asked by Diana
  94. public speaking

    when researching for supporting materials about the impact of violence in the media, it is a good idea to get assistance from this resource. a. television b. call-in radio c. librarian d. personal interview i chose d. but it wasn't correct

    asked by michelle
  95. PYED

    how do you do juming jacks

    asked by dummy preson
  96. math

    100(10)^2 is this 10,000?

    asked by Anonymous
  97. Algebra 1

    A train travels on a 30 mile long circular track that surrounds an entire city. What is the area of the city rounded to the nearest half mile?

    asked by Zoey
  98. public speaking

    In conducting a personal interview, setting limits on what will be covered should occur: a. at the beggining of the interview b. in the middle of the interview c. at the end of the interview d. during the strategy stage i chose d

    asked by michelle
  99. public speaking

    Mandy interviewed a source who told about how she was illegally treated by the police. using her information in the speech is an example of: a. facts and statistics b. narrative c. testimony d. hypothetical example i chose b

    asked by michelle
  100. art history

    paleolithic cultures, cavepaining,talismanic sculpture, Mesolithic cultures,mesolithic,jerricho catal,huyuk stonehenge

    asked by elliot miller
  101. Math

    Which of the following represents the difference between two equal fractions? A.1 B.1/2 C.1/4 D.0

    asked by Hero
  102. geometry

    can not figure out how to simplify a problem into scientific notation

    asked by hailey
  103. Physical Science

    How does the potential energy of an object change when its height is tripled?

    asked by Alex
  104. history help plzzzzzz

    1. What was the Trail of Tears? (1 point) the nickname given to Manifest Destiny by many Native Americans the battlefield where thousands of Cherokees were killed defending their home territory the path walked by Native Americans as they were forced to

    asked by josh
  105. 8gradeHistory

    The United Provinces of Central America was established in what year?

    asked by mathidislikeperson
  106. Math

    The nth term of an A.P. Is 3 times the 5th term.(a)find the relationship between a and d.(b)prove that the 8th term is 5times the 4th term.

    asked by Miracle
  107. Math

    Given that T7=23,Tn=43 and T2n=91.for an A.P.find a,d and n...help please

    asked by Miracle
  108. Math

    Given that T7=23,Tn=43 and T2n=91.for an A.P.find a,d and n...help please

    asked by Miracle
  109. Math; Please help and thank you

    sin(x+(pi/4))- sin(x-(pi/4))=1 1. Apply the sum and difference formulas for sine to simplify the left-hand side of the equation. 2. find all the solutions you found to the equation you found.

    asked by Alisa
  110. MATH

    prove tan (theta/2)= (sin(theta))/(1+cos(theta))for theta in quadrant 1 by providing the calculation along with the reason. I appreciate the help.

    asked by LIZZIE
  111. trig

    if sin and sec of theta are less than zero what quadrant is it in

    asked by Anonymous
  112. chemistry

    I'm not sure how to solve this: If 125 cal of heat is applied to a 60.0-g piece of copper at 20.0∘C , what will the final temperature be? The specific heat of copper is 0.0920 cal/(g⋅∘C). Express the final temperature numerically in degrees Celsius

    asked by mysterychicken
  113. Math

    When camomile finished making a bracelet , it was 7.9 inches long what was the diameter?

    asked by Beth
  114. Math

    Jerrod's bike has a tire diameter of 26 inches. How far will the bike travel in 100 rotations of its tires?

    asked by Tom
  115. "Jiskha" Question

    So who exactly answers any homework questions I have for school? IM just wondering ya'know?How reliable are the answers? ~fanofchan

    asked by ilikezackalot
  116. Science

    1. The combination of sulfur dioxide, nitrogen oxide, and atmospheric moisture creates A. drinking water. B. smog. C. pesticides. D. acid rain. D? 2. Another name for unicellular organisms that dominated Earth up to the Precambrian time is A. eukaryotes.

    asked by Beatrice
  117. Math

    if a 16 ounce can of soup costs 64 cents, what is the cost for each ounce of soup?

    asked by Chloe
  118. Algebra 1

    A merry-go-round has a circumference of 15 feet. What is the radius of the merry-go-round to the nearest tenth of a foot?

    asked by Anonymous
  119. Math

    Mr Townes created a 2foot wide garden path around a circular garden. The radius of the garden is 7 feet. He wants to cover the path in stones. If mr. Townes needs 1 bag of stones for every 5 square feet of path, how many bags of stones will he need to

    asked by Sam
  120. general chemistry II

    Phosphoric Acid is usually obtained at an 85% phosphoric acid solution, by mass. If this solution is 15 M, what is the density of the solution? What is its MOLALITY?

    asked by JL
  121. math

    : Cost of machine $ 90,400 Residual value $ 3,400 Useful life 5 years Estimated units machine will produce 100,000 Actual production: Year 1 Year 2 54,000 11,500 Use MACRS table. Depreciation Expense Method Year 1 Year 2 what is the Units of production

    asked by Anonymous
  122. math

    the ratio to the number of mystery books to the number of science fiction books is 4:3 the ratio of the number of science fiction books to the number of biographies is 4:5 if there are 48 science fiction books, find the total number of books using bar

    asked by Anonymous
  123. Algebra

    A spoke on a wagon wheel is 2 feet long. What is the circumference of the wagon wheel to the nearest tenth of a foot?

    asked by Anonymous
  124. Math

    A rubber ball is dropped from height h. It bounces 27" (60%). Write an equation you can use to find height h

    asked by Jeanne
  125. MATH

    How do the principles of convection, conduction, and radiation explain how the water in the saucepan gets hot?

    asked by Cindy
  126. math

    Katepoured 8 ounces of juice of a 64 ounce bottle Brian poor 60 ounces of juice from a 128 ounces bottle what ratio of juice is missing from each bottle of the ratios proportional

    asked by Tania
  127. math

    on a certain map,10 miles is represents 1.5 centimeters.what is the distance on the map that represents 40 miles?

    asked by ivyjane
  128. Calculus

    A superball is tossed vertically 40 feet and rebounds on each bounce 3/5 of the height from which it fell. How far will it travel before coming to rest?

    asked by Joann
  129. Science ~ Structures and Properties of Matter

    How do the principles of convection, conduction, and radiation explain how the water in the saucepan gets hot? Help ME PLEASE! PLEASE

    asked by Cindy
  130. math

    from a height of 40 m above sea level, two ships are traveling due west. the angles of depression are 45 degrees and 60 degrees. how far apart are the ships?

    asked by carlos
  131. history

    what was Scribner's monthly, "a georgia plantation" about? thanks!

    asked by lauren
  132. Math

    The white house, built 1792, is the oldest federal building in washington DC . The building has undergone extensive remodeling over the years. The main building is 4 stories high and is about 170 ft long by 85 ft wide. If a replica of the white house were

    asked by Nick
  133. science

    Granite is an igneous rock that forms from magma cooled below Earth's surface.Why would granite have larger crystals than igneous rocks formed from lava cooled above Earth's surface?

    asked by Anonymous
  134. math

    If the area of triangle A B C D is 25 square inches, what is the area of the parallelogram A B C D?

    asked by Isabella
  135. Physics Speed of Sound

    Does sound travel faster in wood or water?

    asked by Anonymous
  136. Life Management

    1. Which of the following foods are exempt from the food labeling law? *ready to eat foods as foods at a bakery, deli and/or candy store items packaged cereal, bread and crackers sodas fruit juice, milk and cheese 3. Which one of the nutrients listed below

    asked by Cassie
  137. science

    Carbon dioxide is obtained from the air and changed into carbohydrates and oxygen during the process of A) fossilization. B) respiration. C) digestion. D) photosynthesis

    asked by Ally
  138. physical science

    How much time is needed for a car to accelerate from 8.0 m/s to speed of 22 m/s if the acceleration is 3.0 m/s^2?

    asked by Anonymous
  139. Math

    An athletes long jump rounded to the nearest metre was 8 m. What are the longest and shortest lengths the jump could have been in decimals to the hundredths.

    asked by Ann
  140. Science - Disproven Genetic Theory

    What genetic theory has been disproven ?

    asked by Anonymous
  141. Chemistry

    From data below, calculate the total heat (in J) associated with the conversion of 0.265 mol ethanol gas (C2H6O) at 451°C and 1 atm to liquid ethanol at 25.0°C and 1 atm. (Pay attention to the sign of the heat.)

    asked by Sarah
  142. English

    If you consider The Call of the Wild to be an allegory, which one of the following statements would be true: Judge Miller represents the primordial condition.B Buck represents some characteristic of humanity

    asked by Alice
  143. Math

    An athletes long jump rounded to the nearest metre was 8 m. Whar are the longest and shortest lengths the jump could have been in decimals to the hundredths ?

    asked by Ann
  144. Ball Charter Math

    Julia arrived 20 minutes before the race began. She started right on time. it took her 24 minutes to finish the 6-Kilometer race. She stayed 10 minutes after the race to cool off; then she left. If she arrived at the race at 9:10 A.M., What time was it

    asked by Kim Whiteside
  145. Average Body Fat

    What is the average body fat percentage?

    asked by Anonymous
  146. Math

    An investment was worth $1000. By the end of 2010 the investment had lost 30%. What percent must the investment grow by in 2011 to be worth $1000 by the end of 2011? Round your answer to the nearest tenth of a percent.

    asked by Martin
  147. Math

    I still don't know how to directly solve this problem. Can someone guide to solve this system of equation by using the substitution method? Thanks! 1. Y=6x-5 Y=-x+9

    asked by Anonymous
  148. chemistry

    calculate the heat needed at 0c each of the following joules to freeze 275gof water

    asked by delana
  149. Chemistry

    The volume of a sphere is given by V=(4/3)3.14r^3, where r is the radius. Compute the volume of a sphere with a radius of 329pm. state your answer in units of m^3.

    asked by Cain
  150. chemistry

    A solution is prepared by dissolving 10.00 grams of a monobasic salt in a total volume of 1.00 litres. The pH of this solution was measured at 13.07 and a conductivity experiment determined that this salt was completely ionized in solution. What is the

    asked by Temmi
  151. math(help)

    can anyone answer these 3 answers showing how your work.thanks Mrs. Walters drove 160 miles on 5 gallons of gas. How many gallons of gas will she need to travel 256 miles? Stephen read 90 pages in 6 days. If he continues reading at that rate, how long will

    asked by annabelle
  152. Pre-Calculus

    Find dy/dx if y= x^6[(x^2-9)^8]? So the answer is supposed to be 2x^5[(x^2-9)^7](11x^2-27), but I don't understand how to get it. Do you use product rule, chain rule or both? thanks

    asked by Ann
  153. physics

    A river flows due east at 1.65 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 10.7 m/s due north relative to the water. What is the velocity of the boat relative to shore?

    asked by Tsion
  154. Life Management: Please look, just give your opini

    1. Which of the following foods are exempt from the food labeling law? *ready to eat foods as foods at a bakery, deli and/or candy store items packaged cereal, bread and crackers sodas fruit juice, milk and cheese 3. Which one of the nutrients listed below

    asked by Cassie
  155. Chemistry

    An office heater puts out 2070 Btus (British thermal units) of energy in the form of heat per hour. Given that 1 Btu = 1.055 kJ, how many megajoules of energy in the form of heat can be produced per year (365 days) by the heater (assume continuous

    asked by Cain
  156. human and social biology

    what causes the decreases of the oestrogen levels and on which days of the cycle it occured?

    asked by kay
  157. math(CHECK ANSWERS)

    please check my answers. Mrs. Walters drove 160 miles on 5 gallons of gas. How many gallons of gas will she need to travel 256 miles? (ANSWER):160 divided by 5=32 256 divided by 32=8 Stephen read 90 pages in 6 days. If he continues reading at that rate,

    asked by annabelle
  158. Chemistry

    A particular MP3 encoder can convert 79.0 kilobytes (kb) of music per second from a typical music CD. How many minutes will it take to convert 13.3 megabytes (Mb) of music from a CD?

    asked by Katie
  159. Social Studies

    what were the effects of having to use rivers to complete such long journeys

    asked by Jaennie
  160. social studies (CHECK ANSWERS)

    1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders.(I PICK THIS) C.It ended the revolution. D.It lessened the power of the president. 2. It is hard

    asked by annabelle
  161. math

    Tanya has 4 red marbles, 7 blue marbles, and 8 green marbles. Which expression can be used to find the percent of Tanya's marbles that are blue?

    asked by Paige
  162. Centrifulag pump curve

    Q4 The system on site is a pressure sand filter, with a service curve. The filter is backwashed using the feed pump, at a higher flow rate, shown as backwash curve. Service duty point : 3 m3/h Backwash duty point : 9 m3/h Part (a) (4 marks) What is the

    asked by Tony
  163. compressor operations

    We are operating a centrifugal compressor. The gas composition does not change during this excursion. While holding suction pressure and flowrate constant, the inlet temperature rises. What would you expect to happen to the discharge pressure, and why

    asked by Tony
  164. lube oil systems

    With many lube oil systems, it is common to cool the oil before it is pumped to the end user (engine, compressor, etc). However, for large centrifugal compressors, it is common to pump the lube oil hot, and cool the oil immediately before it enter the

    asked by Tony
  165. Algebra

    A convenience store owner needs to set the regular price for one gallon of 2% milk. He is going to run a "30% off sale" later in the week on this product. The sale price will be $2.53 per gallon. Find the regular price that the owner should charge for the

    asked by Anonymous
  166. physics

    A motorcycle stunt driver zooms off the end of a cliff at a speed of 30 meters per second. If he lands after 0.75 seconds, what is the height of the cliff?

    asked by Anonymous
  167. Physics

    Problem 1 (80 points) Consider a spring of equilibrium length L, lying horizontally in a frictionless trough. The spring has cross sectional area S perpendicular to its length. The trough constrains the motion of the spring so that any wave propagating

    asked by Barb
  168. physics

    Four charges −8 × 10^−9 C at (0 m, 0 m), −7 × 10^−9 C at (5 m, 1 m), −1 × 10^−9 C at (−2 m, −3 m), and 2 × 10^−9 C at (−2 m, 4 m), are arranged in the (x, y) plane as shown. Find the magnitude of the resulting force on the -8c

    asked by sarah
  169. Computer Programming

    Professor Merlin has asked you to help him. He has 100 total students in his four classes but he is not sure that all of them took his last exam. He wants to average the grades for his last exam in all four sections of his medieval literature course and

    asked by Krystal
  170. physic

    A student throws a ball vertically upward such that it travels 6.8m to its maximum height. What is the average speed? What is the average velocity?

    asked by bety
  171. physic

    A student throws a ball vertically upward such that it travels 6.8m to its maximum height.If it i caught at 2.4s. What is the average speed? What is the average velocity?

    asked by bety