Questions Asked on
March 15, 2017

  1. Trig

    Convert the polar equation to rectangular form. r=4cos-4sin What I have so far: r^2=4rcos-4rsin x^2+y^2-4x+4y x^2-4x+y^2+4y=0

    asked by Amb
  2. Math

    Alice is covering a foam cube with fabric to make a fool stool. Each side of the cube is 20 inches. How many square inches of fabric will she need? Im thinking 20*4

    asked by PLZ HELP I HAVE NO IDEA WHAT TO DO HELP
  3. math

    samuel is painting the toy chest shown in the diagram (including the bottom). He needs to know the surface area to determine how much paint to buy.Which of the following is the surface area of the chest.

    asked by HELP PLZ
  4. Math

    A boy's age if formed by reversing the two digits in his grandfather 's ages. If the sum of the digits used 9 and the grandfather is 63 years older than his grandson. Find their present ages?

    asked by Prinsha
  5. maths

    ABCDEF is a regular hexagon.if AB=a BC=b,express AC ,AD, AND AE In terms of a and b. Also prove that AB +BC+ CD+ DE +EF +FA=0

    asked by sankalpa
  6. Chemistry 11

    What mass of iron can be obtained from 500.0g of Fe3O4? I am having a hard time getting started on this question. I think I need to find the percent of iron in the compound and then multiply that by 500.0 g. But, when I tried that I got a really wonky

    asked by Karen Zhang
  7. Organic Chemistry

    What is the literature value for the partition coefficient for caffeine?

    asked by Mark
  8. calculus

    A variable force of 7x−2 pounds moves an object along a straight line when it is x feet from the origin. Calculate the work done in moving the object from x = 1 ft to x = 19 ft. (Round your answer to two decimal places.)

    asked by cynthia
  9. Chemistry

    When 22.50 mL of 0.500 M H2SO4 is added to 22.50 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ΔH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the

    asked by Beth
  10. calculus

    A cable that weighs 6 lb/ft is used to lift 750 lb of coal up a mine shaft 500 ft deep. Find the work done. Show how to approximate the required work by a Riemann sum.

    asked by megan
  11. calculus

    A bucket that weighs 4 lb and a rope of negligible weight are used to draw water from a well that is 70 ft deep. The bucket is filled with 44 lb of water and is pulled up at a rate of 2 ft/s, but water leaks out of a hole in the bucket at a rate of 0.2

    asked by megan
  12. calculus

    Consider the given function and the given interval. f(x) = 10 sin(x) − 5 sin(2x), [0, π] (a) Find the average value fave of f on the given interval. (b) Find c such that fave = f(c). (Round your answers to three decimal places.)

    asked by polina
  13. calculus

    In a certain city the temperature (in °F) t hours after 9 AM was modeled by the function T(t) = 52 + 15 sin(πt/12) Find the average temperature Tave during the period from 9 AM to 9 PM. (Round your answer to the nearest whole number.)

    asked by polina
  14. calculus

    Consider the following function. f(x) = (6 − x)e^−x (c) Find the point of inflection. (If an answer does not exist, enter DNE.) (x,y)=( , )

    asked by galina
  15. maths sir damon reiny or steve help!steve see

    Given u(x, y) = x^2 + 2y where x (r, t) = r sin(t) and y(r,t) = sin^2(t), determine the value of ∂u / ∂r and ∂u / ∂t using the chain rule. Plz show step

    asked by payuto
  16. Comprehension

    To see the outline of a building as its shadow is cast on the lawn of a park is always amazing to see. When the sun rises perfectly centered at the end of an avenue lined with beautiful buildings, it can make a person stop dead in their tracks to admire

    asked by deyond ng
  17. math

    A newlywed couple wishes to have 3 children. What is the probability of having exactly 2 boys?

    asked by Georgette
  18. maths

    A right angled triangle has sides a and b where a

    asked by sivakumar
  19. LAnguage arts

    Part A In Act 1, Scene 5, the young Scrooge�s beloved ends their relationship. She says, �Have I not seen your nobler aspirations fall off one by one, until the master-passion gain engrosses you He is too intrested in money. she thinks they are too

    asked by HELPWITHMYCONNEXUSLESSON
  20. LA PLEASE HELP!!!!!!

    Part A In phantom of the tollbooth Act 1, Azaz gives milo a box of letter of the alphabet to... A. can eat them when hes hungry B. will win against the mathemagician C. will learn to be a better reader D.will be protected on his journey

    asked by Abby a.k.a ANGEL
  21. 11 grade / physics

    a body reaches the max height of 80m when projected at the angle of 30degree find the horizontal component

    asked by muskan
  22. Language

    1. When developing answers for smaller four. Extended response questions how many sentences should you develop? 2. When developing answers for a larger essay questions how many paragraphs should you develop? 3. What does RARE stand for and why is RARE

    asked by I need help
  23. english

    Which lines best reveal Lawrence Ferlinghetti's troubled view of modern American society? To the Oracle at Delphi by Lawrence Ferlinghetti (excerpt) I, Americus, the American, wrought from the dark in my mother long ago, from the dark of ancient Europa—

    asked by marie
  24. English

    M: It's 100% silk, ma'am. W: But I don't have enough money with me now. M: How much do you have? W: Thirty dollars, but I need two dollars for the bus. -------------------------- In this dialogue, what is the part of speech of 'for the bus'? Is it an

    asked by rfvv
  25. math

    cassie needs 16 yards of yarn and she has 580 inches of yarn does she have enough and explain please

    asked by brandy
  26. World History

    Which of the following examples could be used in support of the claim that nationalism contributed to World War I. A. France considered Alsace and Lorraine to belong to France rather than Germany. B. When Austria declared war on Serbia, it was also

    asked by June
  27. English

    Bob: Look at that terrible painting! (Amanda steps backward and gives Bob a puzzled look.) Amanda: Why don't you like it? I think it's quite creative. Bob: It's just squiggles and spots. I can't make any sense out of it. Amanda: It's a abstract art, Bob.

    asked by CanYouHelpMe
  28. social studies

    The Aztecs adapted to their environment mainly by: 1) using terraces and irrigation to farm 2) living a nomadic hunter-gatherer lifestyle 3) trading peacefully with neighbors 4) settling along the coasts where they fish I THINK #1

    asked by Evelyn
  29. english

    Select the abbreviation that tells how the italicized noun clause is used. S-subject, DO-direct object, SC-subject complement, OP-object of preposition (What I wanted to do) was to finish my work. S The valedictory prize will be awarded to (whoever has the

    asked by Jaden
  30. Math

    (b) Each piece of wood for the porch must be 2.25 feet long. • How many pieces can Tyler’s father cut from the 10 boards? • Use words and numbers to explain how you found your answer

    asked by Pain is Beauty and Beauty is Pain
  31. Social Studies 6th grade

    which of the following contributed to the defeat of Aztecs? A. Drought B. enslaved Africans C. earthquakes D. small pox ****

    asked by BlueFire
  32. Algebra

    Triangle DOG is congruent to triangle CAT, DO=5, OG = 6, DG = 7 and CA = 2x + 1. Find x

    asked by Raquel
  33. English

    The students elected him secretary.

    asked by Anonymous
  34. Mathematics

    If the radii of the circular ends of a conical bucket,which is 45cm high,are 28cm and 7cm.Find the capacity of the bucket?

    asked by Elsa tony
  35. Algebra

    TriangleWED is congruent to triangle FRI, angle W = 80degrees, angle D = 45 degrees, angle E = 55 degrees and angle R = 4x + 10. Find x

    asked by Raquel
  36. History

    One reason that protesters may have chosen nonviolent methods was to? A:ensure that they would not be attacked B:Retaliate against racist by force C:Win attention of Ghandhi D:Generate support among the public**** Is this correct?

    asked by Marylyn
  37. Statistics

    Based on data collected by the National Center for Health Statistics and made available to the public in the Sample Adult database (A-5), an estimate of the percentage of adults who have at some point in their life been told they have hypertension is 23.53

    asked by Vanessa
  38. History

    All of the following people may have inspired nonviolent methods of the civil rights movement except? A:Henry David Thoreau B:Ida B. Wells*** C:John F. Kennedy D:Langston Hughes

    asked by Marylyn
  39. mat222

    Suppose that the function h is defined, for all real numbers, as follows. =hx −4 if x2 Find h0 , h2 , and h5 .

    asked by samantha
  40. MATH HELP! CHECK MY ANSWER ASAP!

    1. The formula V = lwh is used to calculate the volume of a rectangular prism. What is the equation solved for h? (1 point) a. Vlw = h b. Iw/V = h c. V/Iw - h** d.Vh = lw 2. What is the equation x = y + z solved for z? (1 point) a. x + y = z b. x/y = z c.

    asked by Cream Puff
  41. intermediate algebra

    Inequalities –1 ≤ x – 3 ≤ 5

    asked by sean
  42. World History

    Which of the following best explains how the alliance system contributed to the outbreak of World War I? A. Alliances had limited trade, causing economic problems and spurring unrest. B. Rival alliances had promoted tension rather than security. C.

    asked by June
  43. intermediate algebra

    inequalities –1 ≤ x – 3 ≤ 5 –2x – 5 < –2 or x – 3 < –10 Be careful of how a negative x-term is handled in the solving process. Show all math work arriving at the solutions. •Show the solution sets written algebraically and as a union or

    asked by sean
  44. math

    CC-chem co manufactures a single product, product W, and have provided you with the following information which relates to the period which has just ended. Standard cost per unit of product W Materials: Materials Price per kilo total Kilos $ $ F 15 4 60 G

    asked by Cyrus
  45. World History

    Who controlled Russia and established the Soviet Union under Lenin's leadership? A. a small group of loyal Bolshevik revolutionaries B. a group of Russians from all political backgrounds. C. a small group of leaders loyal to tsar D. a group of military

    asked by June
  46. science

    how many grams of nacl are required to neutralize 100 ml of 1M h2so4???

    asked by Chemistry
  47. Health and Physical Education

    The Nose, The Diagram and lungs are apart of which system ?

    asked by Young Trippy Lil G
  48. math

    Dench manufacturing has received a special order from Sands to produce 225 components to be incorporated into Sand's product. The components have a high cost, due to the expertise required for their manufacture. Dench produces the components in batches of

    asked by Cyrus
  49. Maths

    The eighth term of an arithmetic series is twice the third term. The sum of the first eight terms are 39.Calculate the first term. Please help

    asked by ryan
  50. World History

    +How was imperialism a cause of World War I? A. Rivalry over overseas territories increased tensions in Europe. B. Colonies' efforts to gain independence increased tensions in Europe. C. Alliances among overseas territories increased tensions in Europe. D.

    asked by June
  51. Mathematics

    The eighth term of an arithmetic series is twice the third term. The sum of the first eight terms are 39.Calculate the first term. Please help i've been stuck for hours on this question

    asked by Ryan
  52. social studies

    Which of the following industries was most important to the development of the West: mining, farming and ranching, or the railroads? I need a pargraph

    asked by Nylah
  53. Math

    9. Calculate the area of the composite figure, which is not drawn to scale. (Workpad needs to be worked out, correctly). 17 cm (rectangle part) top, 22 cm height (one side, rectangle), 10 cm height (other side, rectangle), 19 cm bottom (some, triangle

    asked by Kk
  54. Social Studies

    The decades around the year 50 B.C. saw the end of the Roman Republic and the rise of the Roman Empire. What factors led to the decline of the Roman Republic? Do you think there was any way for the republic to be preserved? What are the disadvantages of an

    asked by Naomi
  55. Math

    Hi! I quickly just need to know what is an irrational number? Thanks! ~Dani

    asked by Dani
  56. SCIENCE

    The handle of a tennis racket is enclosed in rubber. What is the function of the rubber handle? 1)to increase energy 2)to increase weight 3)to increase friction 4)to increase force I think # 3

    asked by Evelyn
  57. Math

    [Note: I did the first half of this question by myself and got it correct. But I got the second half wrong] Question: How much work does the electric field do in moving a proton from a point with a potential of +160 V to a point where it is -45 V ? Express

    asked by Ashley
  58. World History

    How did new military technology influence the fighting in World War I? A. It allowed battle fronts to move widely. B. It shortened the length of the war. C. It increased the number of casualties. D. It brought the European colonies to war. My Answer: C

    asked by June
  59. math

    CC-chem co manufactures a single product, product W, and have provided you with the following information which relates to the period which has just ended. Standard cost per unit of product W Materials Price per kilo total Kilos $ $ F 15 4 60 G 12 3 36 H 8

    asked by Ndung'u
  60. ENGLISH

    WHICH DETAIL DO you not need in order to draw a conclusion

    asked by TIFFANY
  61. Science

    My sister plays her PS4 all day and whenever her remote vibrates while it's sitting on the couch, I can feel the vibration from a different seat. I don't understand how the vibration of a little remote can move throughout a whole, large couch.

    asked by Gabe
  62. idk

    what are some good ways to convince my friends to volunteer

    asked by Young Trippy Lil G
  63. Pre-cal

    Determine two positive integers such as 5 less than two times the first number is the second number. The sum of the second number and the square of the first is 115.

    asked by John
  64. SCIENCE

    Barry used a ramp to transport a load to a truck. The ramp made work easier by : 1) reducing the size of the input force 2) reducing the input force to zero 3)changing the distance over, which the input force was exerted 4) reducing the output force to

    asked by Evelyn
  65. World History

    I am not allowed to type in an internet address so just google "Women! help America's Sons Win The War poster". It should be the first few results in the 'image' section. Which of the following is the primary argument being made by this World War I

    asked by June
  66. World History

    Which of the following is one way Russia's lack of industrialization impacted the war? A. Russia quickly surrendered and removed itself from the war. B. Trench warfare did not develop on the Eastern Front. C. The Ottomans were prompted to join the war. D.

    asked by June
  67. math

    A person sold 100 shares of a stock at a loss of 40%. If the selling price for the 100 shares was $3,000, which of the following comes closest to what was paid for the stock?

    asked by toya
  68. Math

    Which statement shows 28% on a 5x5 grid? ÷ are the shaded/× are the blank A.÷×÷÷÷ ÷÷÷×÷ ÷÷÷÷÷ ×÷÷÷× ÷÷÷÷× B. ×÷××÷ ÷××÷× ××÷÷× ××××× ××××÷ C. ××××× ÷×÷×× ×÷××× ××÷×× ÷×××÷ D.

    asked by CanYouHelpMe
  69. World History

    Which of the following was one reason the February Revolution in Russia was less successful than the October Revolution? A. It had less support among all social classes in Russia. B. It was planned and led by followers of Karl Marx C. It did not affect

    asked by June
  70. Mathematics

    Along a road lie an odd number of stones placed at intervals of 10 metres.These stones have to be assembled around the middle stone.A person can carry only one stone at a time.A man carried the job with one of the end stones by carrying them in

    asked by Elsa tony
  71. CHEMISTRY

    WHY A CONICAL FLASK CONTAINING A HOT SOLUTION IS NOT TIGHTLY STOPPERED TO PREVENT SOLVENT LOSS DURING COOOLING.

    asked by CYNTHIA
  72. Science

    The image above shows the movement of a wave over three seconds. What is the frequency of the wave? A. 2 hz B. 5 hz C. 1 hz D. 3 hz

    asked by Anonymous
  73. World History

    Which of the following was one effect of the failure of Germany’s Schlieffen Plan to quickly defeat France? A. Germany had to fight the war on both the Eastern and the Western Front. B. Germany was not able to bring Austria-Hungary into the war as its

    asked by June
  74. Math

    Question: An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 249 m/s^2 . Part A: What is the magnitude of the electric field? Answer: E=_____ N/C Part B: What is the direction of the electric field?

    asked by Ashley
  75. S.S @ Ms Sue Plzz HELP!

    Why did Christianity apparel to many Romans???

    asked by Young Trippy Lil G
  76. Caclulus

    Let x and y be to positive numbers whose product is 500: (a) Find the maximum sum of x and y (b) Find the minimum sum of x and y: 2. A cylindrical container can hold a volume of 1 liter. Find the dimensions of the container that minimizes the surface area.

    asked by cool
  77. Math

    A quart of milk and cream contains 28 ounces of milk. If 8 ounces of cream are added, what percent of the new mixture is cream?

    asked by colandaa
  78. chemistry

    A 275 mL sample of 1-propylamine vapor (in equilibrium with the liquid) at 25 °C is removed and dissolved in 0.500 L of H2O. For 1-propylamine, Kb = 3.72 x 10-4 and the vapor pressure at 25.0 °C is 316 Torr. a. What should be the pH of the aqueous

    asked by Andreea Grigore
  79. World History

    Which of the following was an effect of Allied defeats and high casualty rates on the Eastern Front? A. Russia entered the war on the Allied side B. Russia experienced a revolution and dropped out of the war. C. The United States issued the Four Points. D.

    asked by June
  80. english answer check please, 4 questions

    1. To plan your time for a research project, it is best to (1 point) divide the time spent on each step evenly. keep your deadlines flexible. start at the beginning and plan from there.***** work backward. 2. Which of the following is not a guideline for

    asked by Anonymous
  81. World History

    What with the political monopoly, the Cheka and the Red Army, all that now existed of the "Commune-State" of our dreams was a theoretical myth. -Victor Serge, Memoirs of a Revolutionary Based on this quotation, which conclusion can you draw about the

    asked by June
  82. Math and Hurry Please!

    A prism is completely filled with 2304 cubes that have edge length of 1/4 cm What is the volume of the prism?

    asked by JT
  83. Math! Help Hurry!

    A rectangular prism has a length of 8 in., a width of 4 in., and a height of 2 1/4 in. The prism is filled with cubes that have edge lengths of 1/4 in. How many cubes are needed to fill the rectangular prism?

    asked by JT
  84. Math! Help Hurry!

    A prism is completely filled with 96 cubes that have edge length of 1/2 cm. What is the volume of the prism?

    asked by JT
  85. Math! Help Hurry!

    Tasha has foam blocks stored in a box that measures 3 1/4 ft long by 3 ft wide by 1 ft tall. Each foam block is a cube with 1/4 ft edge length. How many blocks can fit into the box? A)156 B)312 C) 624 D) 2496

    asked by JT
  86. Math! Help Hurry!

    A chest shaped as a rectangular prism can hold 576 wooden cube blocks with edge lengths of 1/4 ft. What is the volume of the chest?

    asked by JT
  87. EDTECH

    Which of the following is a good test-taking strategy for multiple-choice questions? A)answer C is almost always the correct answer, so pick answer C if you don't know the answer. B)read the answers first, then read the question. C)when in doubt, provide

    asked by Royal
  88. social studies

    2. In 1999, Canada's Inuits became (2 points)

    asked by CJ So Cool
  89. Math HELP

    A new luxury car costs $80,000. You pay 10% down and amortize the rest with equal monthly payments over a 7-year period. If you pay 9.25% compounded monthly, what is your monthly payment? How much interest will you pay?

    asked by Lilian
  90. Math1

    use formula from 2c to find the values of t and t 7 20 c)36,31,25,21,...

    asked by Rocky
  91. Science

    In the record setting race, a dragster reached a velocity of 145.08 m/s in 4.48s. What was the dragsters average acceleration? Assume that the direction of the velocity is positive.

    asked by Mileena
  92. Math

    The original Ferris wheel introduced at the 1893 World's Fair in Chicago had a diameter of 250 feet. What is the closest distance a person who rode this wheel travelled in one complete revoulution

    asked by KK
  93. World History

    The second bullet struck the Archduke close to the heart. He uttered only one word, "Sofia"- a call to his stricken wife. The his head fell back and he collapsed. He died almost instantly. -Borijove Jevtic, co-conspirator Which of the following was the

    asked by June
  94. Math

    Find the length of the curve y=(x3/3)+x2+x+14x+4 Plases help to find the curve

    asked by Abdullah
  95. english

    8 - 10 paragraphs on The Odyssey part 1. PLEASE, I WONT TAKE THIS FOR GRANTED. god bless. i tried but i cant read it very well

    asked by steve
  96. English

    In the poem silk weed which line from the exact rhyme with each other

    asked by Anonymous
  97. Math (Ms.Sue please help!)

    Sarah owns a small business. There was a loss of $19 on Thursday and a loss of $12 on Friday. On Saturday there was a loss of $11, and on Sunday there was a profit of $15. Find the total profit or loss for the four days. A. $35 loss B. $19 profit C. $27

    asked by Fork-A-Dork
  98. Science

    A professional baseball player pitchers a ball giving it a velocity of 45m/s towards the butter. The batted ball has a velocity of 30m/s towards the pitcher. Let the direction from the batter to the pitcher be the positive direction. If the change in

    asked by Mileena
  99. LA HELP/CHECK!

    1. Part A In Act 1, Scene 5, the young Scrooge’s beloved ends their relationship. She says, “Have I not seen your nobler aspirations fall off one by one, until the master—passion, Gain, engrosses you?” From this dialogue, what can you conclude is

    asked by Agala
  100. Math

    It took Jen, who biked at a speed of 12 mph, 20 minutes to get home. What is Jim’s speed, if it took him only 15 minutes to bike that distance?

    asked by URGENT
  101. Math

    Three workers can do a job in 28 hours. How many more workers are needed to do this job in 12 hours?

    asked by URGENT
  102. english

    Which type of essay is Amy Tan's "Mother Tongue"? a. persuasive b. regional c. bias d. reflective I read this essay and I think it is an essay that gives information to others people about the trials and tribulations of having a mother that doesn't speak

    asked by marie
  103. Physical Science

    Find a hydroxide-ion concentration in an aqueous solution having a pH of 2. Express your answer using one significant figures. I thought the answer was 1*10^-2, but I have no clue what I am doing wrong.

    asked by Hannah
  104. Physical Science

    Find the hydroxide-ion concentration in an aqueous solution when the hydronium-ion concentration is 1×10^−10M. Recall that 10^a×10^b=10^(a+b). Express your answer to one significant figure and include the appropriate units.

    asked by Hannah
  105. Algebra

    How do I factor this question? 3n^2-n-4=

    asked by Tyler
  106. Physics

    A hamster sits 0.10 m from the center of a lazy Susan of negligible mass. The wheel has an angular velocity of 1.0 rev/s. How will the angular velocity of the lazy Susan change if the hamster walks to 0.30 m from the center of rotation? Assume zero

    asked by Anonymous
  107. Physics

    A wheel with rotational inertia I initially rotates with a angular speed ωi . A torque is applied, speeding the wheel up to three times the angular speed in time Δt . A) Find the magnitude of the applied torque. B) Find the work done on the wheel during

    asked by Anonymous
  108. Physics

    The game of Jacks is played with pieces like those shown to the right, consisting of four small spheres at the ends of two perpendicular rods of length L and mass M. The piece is spun as shown about an axis through the third perpendicular rod of length L

    asked by Anonymous
  109. Physics

    A potter’s wheel with rotational inertia 24 kg m2 is spinning freely with no friction at 50 rpm. A piece of clay is dropped from above the wheel and sticks 0.5 m from the center of the wheel. Afterward, the rotational speed of the wheel and clay has

    asked by Anonymous
  110. Physics

    A block and a spool have the same mass, and are each pulled across a level, frictionless surface by a string, as shown to the right. The string pulling the spool is wrapped around it many times, and the other string is fastened to the center of the block.

    asked by Anonymous
  111. sccial studies

    which statement descried the automotive industry in the 1950

    asked by PLZ.Help ME
  112. Language Arts

    In what marking period was Melinda suicidal. In the book Speak And please do not give me links to other sites.

    asked by Anonymous
  113. Social Studies

    Which cause most motivated the push for Mexican independence from spain? A.trade with the United States B.lack of rights and opportunities among non-Spanish C.Catholic missionary efforts D.geographic distance from spain I read my textbook and I came up

    asked by Aron
  114. SS

    1 Cattle ranchers are generally found in northern Mexico because. A There are many cities where beef can be sold. B There is a lot of open space for grazing. C Cattle thrive in rain forest. D There are many sources of water. 2 For what reason did Hernan

    asked by Jaden
  115. AP Physics

    A block and a spool have the same mass, and are each pulled across a level, frictionless surface by a string, as shown to the right. The string pulling the spool is wrapped around it many times, and the other string is fastened to the center of the block.

    asked by Anonymous
  116. Math

    Kylee bought a pack of 12 cookies. One-third of the cookies are peanut butter. How many of the cookies in the pack are peanut butter?

    asked by Gianna
  117. math

    John let out 50 foot of kite string when he observes that his kite is directly above a point on the ground 30 feet away from him, how high is the kite ?

    asked by carlos
  118. sir damon help plz steve plz chip into these

    An airplane ✈ makes a turn which has a banking curve of 30° to the horizontal with a radius 5m, in 10sec, what is the mass of the airplane, if it has a force of 500N. The power the plane travelled with, and what's the speed of the airplane when it made

    asked by payuto
  119. english

    If people are ignored because of their inability to speak standard English, what have they encountered? a. language bias b. language variety c. language prejudice d. language snobbery Are these real phrases? I don't know where to look them up to try to

    asked by marie
  120. sir damon steve damon damon help maths

    Record, indicate that t hours past midnight, the temperature at the local airport was T(t)=-0.3t^2+4t+10degree celcius. What was average temperature in farenheit at airport between 9am and noon? Plz damon show step

    asked by weryiyemi
  121. dunno maths help asap

    The volume of water inside a swimming pool doubles every hour. If the pool is filled to its full capacity within 8hours, in how many hours was it filled to one quarter of its capacity? Help step

    asked by erami
  122. Math

    If the scale had been 2/3 inch: 4 feet , how many inches longer would the scale drawing of Quinta's bedroom have been?

    asked by Anonymous
  123. language art

    so I am reading a book (The Hiding Place) But I need help on a question. What does the cathedral in Haarlem boast?

    asked by help me
  124. Statistics

    A pilot sample of 50 measurements of the breaking strength of cotton threads gave S_(pr) = 18 grams. Determine the sample size needed to obtain a 90% Confidence Interval of length 4. I tried using the sample size formula but that did not gave me the right

    asked by Zabe
  125. Science

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

    asked by Anonymous
  126. Pre-Algebra

    The wind blew away 12 of your muffins. That was 3/7 of all of them. How many are left?

    asked by Alex
  127. algebra, series

    The sum of the first n terms of a series is 1-(3/4). Obtain an expression for the nth term of the series. Prove that the series is geometric, and state the values of the first term and the common ratio. Please show workings

    asked by youngguru
  128. Algebra

    Multiply -4b by 1-b/b? I did -4b/1 × 1-b/ b But my answer isn't adding up?

    asked by Matt
  129. Math

    Describe the cross sections formed as the plane intersects the interior of the sphere but moves away from the center

    asked by George
  130. English

    A driver didn't have a license and went down a one-way street, moving in the wrong direction. A policeman saw it but did nothing to stop the driver. Why?

    asked by Dw
  131. Social Studies

    Which of following contributed to the rapid growth of the American economy after world war ll

    asked by CanYouHelpMe
  132. math

    find the circumference of the circle round to the nearest foot. it is 42 ft I got a but I'm not sure. A.132ft B.264ft C.1,320FT D.2,640FT

    asked by Anonymous
  133. MATH

    In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezoid.

    asked by none
  134. math

    Mike says that 3/3 of his fraction model is shaded blue. Ryan says that 6/6 of the same model is shaded blue. Are the two fractions equivalent? If so, what is another equalivant fraction?

    asked by gianna
  135. math

    The sale price of an item is $180 after a 25% discount is applied. What is the original price of the item?

    asked by Madeline
  136. Math

    50 is what percent of 125?

    asked by Madeline
  137. math

    find the area of the circumference. 42 FT A. 132 ft I got A. and others told me this 2 is this correct?

    asked by Baby girl
  138. math 1

    c) 36,31,25,21,... t7 and t20 arithmetic and geo metric

    asked by Rocky
  139. Chemistry help!!

    Phosphoric acid, H3PO4, has some important applications. It can be used to produce fertilizers and it is present in soft drinks. Phosphoric acid can be made from phosphorus in a two step process: Reaction 1: P4 + 5 O2 --> P4O10 Reaction 2: P4H10 + 6H2O-->

    asked by Lyndsay
  140. math

    A ladder 29 feet long leans against a wall and the foot of the ladder is sliding away at a constant rate of 3 feet/sec. Meanwhile, a firefighter is climbing up the ladder at a rate of 2 feet/sec. When the firefighter has climbed up 6 feet of the ladder,

    asked by karthik
  141. Science

    What abiotic and biotic factors might limit population size and mono lake?

    asked by Lily
  142. maths

    A right angled triangle has sides a and b where a

    asked by sivakumar
  143. science

    A bullet of mass 20g travelling at speed of 350m per second strike a steel plate at an angle of 30degree with the plane of plate it ricochets off at the same angle at a speed of 320m per second what is the magnitude of impulse that the steel plates gives

    asked by gobind
  144. math

    Amy leaves home at the same time every morning and gets to school exactly at 8 AM. If she traveled at 70 meters per minute she would arrive 10 minutes early. If she traveled at 60 meters per minute she would arrive 8 minutes early. What time does Amy leave

    asked by Dave
  145. science

    A bullet of mass 20g travelling at speed of 350m per second strike a steel plate at an angle of 30degree with the plane of plate it ricochets off at the same angle at a speed of 320m per second what is the magnitude of impulse that the steel plates gives

    asked by gobind
  146. Biology

    the eventual evolution of living organisms on earth is based upon the following theory: during the early stages of the earth's history the chemical characteristics of the world changed as the conditions on the planet changed. The changes established the

    asked by Samantha
  147. Math

    A test has 12 problems, and each problem is worth 5 marks. Full marks are given for a correct answer, 2 marks are given if there is no answer, and no marks are given for an incorrect answer. Some scores between 1 and 60, are impossible to get on this test.

    asked by Thomas
  148. science

    A truck of mass 2000 kg moving on a highway experience an average frictional force 800 N. il its speed increase from 25m / s to 35m/s over a distance of 500m. What is the force generated by truck

    asked by gobind
  149. Spanish

    How do you say and conjugate the word "make" in Spanish?

    asked by Crystal
  150. science

    An automobile travelling at 80km per hours has tyres of radius 80 cm. On applying brakes the car is brought to a stop in 30 complete turns of the tyres. What is the magnitude of the angular acceleration of the wheels how far does the car move while the

    asked by gobind
  151. basic math

    how to write forty five thousand three hundred twelve

    asked by Anonymous
  152. math

    You have a total of 52 dimes and quarters. You have 10 more quarters than dimes. Which system of equations can you use to find the number x of quarters and number y of dimes you have? Use the system to determine how much money you have in quarters and

    asked by jane
  153. science

    what is the molar ratio between barium hydroxide and potassium hydrogen phthalate if they were reacted together in an acid base titration

    asked by Jake
  154. Science

    What would be the effect on the seasons and the northern and southern hemispheres if Earth were not tilted?

    asked by Help I need somebody not just anybody
  155. Calculus

    A bowl is created with circular cross sections so that its radius (in cm) is a function of height (in cm) according to the equation r=4sqrt(h+1). Find the volume of soup that fills the bowl if the bow is 2 cm high.

    asked by Sara
  156. chemISTRY

    Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously. After a certain amount of time, it was found that 5.36 mL of O2 had passed through the membrane, but only 3.60 mL of of

    asked by Hannah
  157. CHEMISTRY

    If He(g) has an average kinetic energy of 4190 J/mol under certain conditions, what is the root mean square speed of Cl2(g) molecules under the same conditions?

    asked by Hannah
  158. chemISTRY

    What is the rms speed of N2 molecules at 281 K? What is the rms speed of He atoms at 281 K? where R=8.314

    asked by Hannah
  159. World History

    Evaluate the pros and cons of the Great society. Did the program achieve it's goals? I did all the questions but this last written one is stumping me... if you can help it would be greatly appreciated. My response was the death lead by the great society

    asked by Dork Schnrodenough
  160. Math

    Find the length of the curve y=(x3/3)+x2+x+1/4x+4 Plases solve

    asked by Abdullah
  161. Math, Series

    Given that 1/(y-x), 1/2y, and 1/y-z are consecutive terms of an arithmetic progression, prove that x,y, and z are consecutive terms of a geometric progression.

    asked by Raj
  162. Series

    Given that 1/(y-x), 1/2y, and 1/y-z are consecutive terms of an arithmetic progression, prove that x,y, and z are consecutive terms of a geometric progression.

    asked by Raj