Questions Asked on
March 17, 2017

  1. Physics

    Two point charges of 16 microcoulomb and - 9 microcoulomb are placed at8 cm distance. determine the position of the point at which resultant electric field is zero

    asked by Harsh
  2. Math

    Square ABCD has side length 60. An ellipse E is circumscribed about the square and there is a point P on the ellipse such that PC = PD =50. What is the area of E? I got to the part with the point (30, 30). Now what next?

    asked by Steve
  3. math

    A motorboat covers the distance from one pier to the other pier in 4 hours and the way back in 5 hours. What is the speed of the boat in still water, if it covers 70 km with the current in 3.5 hours?

    asked by annie
  4. Algebra

    An aircraft factory manufactures airplane engines. The unit cost C (the cost in dollars to make each airplane engine) depends on the number of engines made. If x engines are made, then the unit cost is given by the function =Cx+−0.2x248x21,748 . What is

    asked by Shelby
  5. Math

    Use the sterm-and-lead plot below to answer questions 1-3 Stem Leaf 5 4 5 6 0 6 9 7 2 3 4 5 5 8 1 2 8 9 9 5 6 5/4= 54 1. What is the range of data? A. 40*** B. 42 C. 54 D. 96 2. What is the median of the data? A. 64.5 B. 72.5 C. 74.5*** D. 75 3. What is

    asked by Help me plz
  6. Geometry proportions in triangles

    1. What similarity statement can you write relating the three triangles in the diagram? A. UVW~UWT~WVT B. UVW~ WUT~WVT C. WUT~ VUW~WVT D. TWV~ WUV~UWT 2. What are the values of A and B? A. a=9/2, b=15/2 B. a=15/2, b= 9/2 C. a=16/3, b=15/2 D. a=9/2, b=13/2

    asked by Idkkk
  7. calculus

    Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→∞ {(5x − 4)/(5x + 3)}^5x + 1

    asked by christina
  8. Social studies 7

    What inspired the boxer rebellion? The open door policy Industriazatiin in Japan Foreign influence in china The overthrow of queen liliuokalani

    asked by Mackenzie
  9. Math - Trigonometry

    A, B and C are three towns, the bearing of B and C from A being 295° and 205°, and their distances from A are 280km and 800km respectively. Find the bearing of C from B to the nearest minute.

    asked by Anonymous
  10. Chemistry

    A gas expands its volume from 4.7 L to 8.9 L at constant temperature. Answer the following: a) If the gas expands against vacuum conditions, calculate the work (in joules) done by the gas. b) Calculate the work done (in joules) by the gas if it expands

    asked by Anon
  11. Calculus/Optimisation

    An open water tank with a square base is to be made from a thin sheet of metal. find the length of the square base and the height of the tank so that the least amount of metal is used to make a tank of capacity 8 meters cubed

    asked by J.
  12. Chemistry

    What is the final temperature when 180.0 mL water at 101.3 C is added to 93.1 mL of water at 65.5 C?

    asked by Anon
  13. math

    Two shelves contain 55 books. If half of the books from the second shelf were relocated to the first shelf, then the first shelf would contain 4 times more books than the second one. How many books are there on each shelf?

    asked by annie
  14. physical science

    an object has 2.0x 10^19 more electrons than protons. What is the net electric charge of this object in coulomb?

    asked by fred
  15. calculus

    Find the limit. Use l'Hospital's Rule if appropriate. If there is a more elementary method, consider using it. lim x→0 (e^x − e^−x − 2x)/(x − sin(x))

    asked by christina
  16. science

    Two charges repel each other with a force of 10-5newton when they are 20cm apart. what is the force on each of them are i 3cm apart and ii when they are 100cm

    asked by physics
  17. science

    The wood thrush is a bird species that lives in deciduous forests in North America. Wood thrushes nest in tall trees, forage for insects and snails in decaying leaf litter on the forest floor, and drink water from nearby freshwater sources. Identify one

    asked by mackenzie
  18. Physics

    A positive charge moving up enters a magnetic field pointing out of the screen. What is the direction of the magnetic force on the charge? up down right left

    asked by Anonymous
  19. Physics

    A wire runs left to right and carries a current in the direction shown. What is the direction of the magnetic field at point Z?

    asked by Anonymous
  20. calculus

    Find dy/dx by implicit differentiation. arctan(2x^2y)=x+4xy^2

    asked by christina
  21. Science

    Compare lunar and solar eclipses and answer the following questions: How does a lunar eclipse happen? How does a solar eclipse happen? Which one occurs more often?

    asked by Help I need somebody not just anybody
  22. Statistics

    Consider a t distribution with 30 degrees of freedom. Compute P(t "greater than or equal to" -1.50). Round your answer to at least three decimal places. Consider a t distribution with 6 degrees of freedom. Find the value of c such that P(-c

    asked by Mariah
  23. Math - Geometry!!!

    What shape is created if you connect the following points: (1,1), (5,1),(7,3), and (3,3)?

    asked by Luca Gonzalez
  24. English

    Like the modernists, postmodern writers focused on subjective experience rather than objective cultural norms.

    asked by Shawn
  25. Math

    what is the surface area of the rectangular prism? length: 21.5mm height: 5mm Width: 4mm A. 480MM^2 B. 427MM^2**** C. 213.5MM^2 D. 255MM^2

    asked by BlueFire
  26. algebra

    peter is twice as old as paul was when peter was as old as paul is now. the combined ages of peter and paul is is 56 years. how old are peter and paul now?

    asked by roy
  27. Language Arts

    1. Which of the following sentences has correct subject-verb agreement? A. A scarf or a hat keep you warm in the winter. B. Either Grandma or your brother pick your birthday gifts each year. C. Stacey and her sisters go to the beach every summer.** D. A

    asked by Anonymous
  28. Language Arts

    The Tide Rises, the Tide Falls by Henry Wadsworth Longfellow The tide rises, the tide falls, The twilight darkens, the curlew calls; Along the sea-sands damp and brown The traveller hastens toward the town, And the tide rises, the tide falls. Darkness

    asked by Anonymous
  29. math

    in cooking 1 drop equal 1/6 of a dash. if a recipe calls for 2/3 of a dash, how many drops would that be.

    asked by Anonymous
  30. Seventh grade math

    The area of a square floor on a scale drawing is 64 square centimeters, and the scale drawing is 1 centimeter:2 ft. What is the area of the actual floor? What is the ratio of the area in the drawing to the actual area? I have been trying to answer this

    asked by Braylynn
  31. Chemistry

    Which equation would describe the following equilibrium constant? Kc = [Bi3+]2[S2-]3 ----- Bi2S3 (s) 2Bi3+ (aq) + 3S2- (aq) Bi2S3 (s) + 6HCl (aq) 2BiCl3 (aq) + 3H2S (aq) BiS (s) Bi3+ (aq) + S2- (aq) Bi2S3 (s) 3Bi2+ (aq) + 2S- (aq)

    asked by nonny
  32. Maths

    Dennis score 7.5mark in a test and it is equivalent to 93.75%.what is the total marks for the test?

    asked by Razah
  33. Math

    The difference between two numbers is 21. If twice the smaller number is added to one-half of the larger number, the result is 38. What are the numbers?

    asked by Jeanine
  34. math

    The sum of two numbers is equal to 63 and their difference is equal to 12. Find the numbers.

    asked by annie
  35. Statistics

    I am confused by the following and need some help You want to find the values for the equation ŷi=a+bxi. What is the value of the slope? time spent on Bookface predictor variable, time spent working is the response variable. correlation between minutes

    asked by claire
  36. chemistry

    Calculate the pH of a buffer solution prepared by mixing equal volumes of 0.20 M NaHCO3 and 0.10 M Na2CO3. (Ka = 4.3 x10-7)

    asked by Anonymous
  37. Math

    Simplify 5! A.5 B.15 C.120 D.125

    asked by Wally West
  38. geometry

    Let the incircle of triangle $ABC$ be tangent to sides $\overline{BC}$, $\overline{AC}$, and $\overline{AB}$ at $D$, $E$, and $F$, respectively. Prove that triangle $DEF$ is acute. I have tried proving that triangle DEF's angles were les than the opposite

    asked by Aaa
  39. Algebra

    Consider the following matrix. A = 7, -5 -4, 3 Choose the correct description of A Find A^−1 if it exists. Answer either Choice 1, or Choice 2: CHOICE 1: A is nonsingular; that is, it has an inverse. A^-1 = _________ or CHOICE 2 : A is singular; that is,

    asked by Shelby
  40. English

    1. Write about you and introduce yourself taking turns in groups. 2. Write about yourself and introduce yourself taking turns in groups. ----------------------- Do we have to use 'you' or 'yourself' after 'about'?

    asked by rfvv
  41. Math

    A container has capacity of 2/3. It is filled 3/4. How many liters of water will be left in the container after 1/6 liter is poured out? I have no idea how to do this problem! Please help guide me through this math problem! Thank You!

    asked by Stargirl
  42. Math

    whats the decimal notation for seventy seven thousandths

    asked by Brandon Terry
  43. Math

    2 + 6+ 10+ 14 + 18 + 22 + 26+ 30+ 34 + 38 = 200 To inme se kisi 5 ko Total kar ke 100 banaao.!

    asked by Anonymous Calculus
  44. Algebra

    John will be half of the father's age his father will be 33 next year, how old will John be

    asked by Daniel
  45. Algebra

    In 4 years time John will be half of the father's age his father will be 33 next year, how old will John be

    asked by Daniel
  46. English

    Like the modernists, postmodern writers focused on subjective experience rather objective cultural norms A: Expressing or dealing with facts or condition as perceived without distortion by personal feelings prejudices or interpretations** B: Characteristic

    asked by Shawn
  47. Math

    The oldest man in the world is 110 years old . If his younger brother is 9/10 of his age how old is his younger brother?

    asked by Sky
  48. Spanish

    What can visitors see at the Canaima National Park?

    asked by I'm a Queen
  49. English

    1. I have two dance classes on Monday. 2. I have two dancing classes on Monday. (which one is correct as a subject, dance or dancing?)

    asked by rfvv
  50. Math

    What is half of 4 and 4 1/2

    asked by Anonymous
  51. Social studies

    why was the americans attack on manila harbor in the philippines important for a quick american victory in the spanish american war? The United States relied on war supplies from Asia and securing the Philippines protected those.••• The United States

    asked by Mackenzie
  52. economics

    Explain why we might be concerned about the potential for the misrepresentation of costs.

    asked by annoymous
  53. Last math question of the night plz help quickly!

    Find the domain and ranges of the following: f(x)=(2/3)x-3 f(x)=-3x+7 Thank you in advance, this helps me a lot because I really suck at finding domain/range and it's super late rn.

    asked by help!
  54. Food analysis

    How to prepare 0.5m of hcl

    asked by Ogbonna
  55. physical science

    a cars radio draws 0.25 A of current in the autos 12 volt electrical system. How much power in watts does the radio use?

    asked by fred
  56. chemistry

    when hcl reacts with mg, how many grams of magnesium are needed to produce 100 grams of hydrogen?

    asked by tehreem
  57. Physics

    The magnetic field 0.02 m from a wire is 0.1 T. What is the magnitude of the magnetic field 0.01 m from the same wire?

    asked by Anonymous
  58. English

    doing research on a report for how study scheduling apps can help students. the apps i have chosen are evernote, my study life and my homework. The info i need is how these apps can benefit students and how they can actually help and how they coorelate to

    asked by Ria
  59. Math

    A rectangular field has side lengths of 2/3 mile and 3/4 mile. What is the area of the field.

    asked by Jac
  60. Physics

    What must be known to determine the direction of the magnetic force on a charge? the type of the charge the amount of the charge the direction of the magnetic field the velocity of the charge the strength of the magnetic field

    asked by Anonymous
  61. Chemistry

    Determine the pH of a solution after 20.00 mL of 0.4963 M HI has been titrated with 12.64 mL of 0.5174 M NaOH.

    asked by Sarah

    a stone of mass 0.5kg is drop from a height of 12m. calculate; it's kinetic energy. (g=10m/s2).

    asked by GLORY
  63. english

    Who am I? I am a national builder My favourite letter is K My favourite food is Japanese

    asked by peter
  64. maths

    OPQR is a rhombus , three of whose vertices lie on a circle with centre O.If the area of the rhombus is 32 root 3cm square ,find the radius of the circle

    asked by Manish
  65. maths

    ABCD is a parallelogram and AE perpendicular to DC if AB is 20cm. and the area of parallelogram is 80cm. then find the AE which is 90degree?

    asked by honey
  66. Social studies

    The Macdonald-Cartier bridge that stretches the Ottawa River and connects Ontario to Quebec is named for two Canadian politicians, one ______ and one _______. A)English, German B)Inuktitut, French C)French, Cree D)English, French

    asked by Alyssa
  67. Math

    How much must be deposited today into the following account in order to have$120000 in 14 years ? No additional deposits are made. An account with quarterly compounding and an APR of 7.4% ?

    asked by Debra
  68. Maths

    Peter deposit k180,600.00 with BSP which offers 6 1/4% per annum interest. Calculate the interest earned after 6 years if it is compounded:

    asked by Regina
  69. Math

    If I earn £200 a week,the tax man takes 3/8 of it and I pay my mum 1/2 of my earnings for rent , how much do I end up having to spend on things I want?

    asked by Mark
  70. algebra

    An object is thrown straight up into the air at an initial vertical velocity of 32 feet per second from an initial height of 128 feet and is represented by the vertical motion model, h(t) = -16t^2 + 32t + 128. How much time does it take for the object to

    asked by Jo
  71. Social Studies

    Question 1 (1 point) How have residents of Canada's eastern coast dealt with changes in the fishing industry? a They have banned aquaculture. b They concentrated on other economic activities. c They have completely given up fishing. d They only fish for

    asked by Savannah
  72. 5th grade math

    Rachel has a box of cupcakes that she wants to share equally with her 5 friends. Write an expression to represent the problem.

    asked by Douglas
  73. math

    A boy draw the frame of a picture to a scale of 1cm to 15cm.if his drawing has 5cm length and 3cm as breath, what is the actual length and breath of the picture?

    asked by Ene
  74. Integral Calculus

    How to determine the order and degree of this differential equation, (y''')^2-2(y')^6=x-2

    asked by Liv
  75. physics

    A kg construction worker is standing on an 18.0 kg plank. The plank is m long and it is suspended by vertical cables at each end. If the worker stands 2.80 from the right end of the plank, what is the tension in right cable? Give your answer in newtons (N)

    asked by Idali
  76. algebra

    The average speed of an express train is 20km/hour more than the average speed of a passenger train .To cover a distance of 360kms the express train takes 3 hours less than that of the passenger train. Find the average speed of both passenger and express

    asked by chinnu
  77. Maths

    Peter deposit k180600 with bsp which offers 6 1/4% per annum interest. Calculate the interest earned after 6 years if it is compounded:

    asked by Regina
  78. Math Help!

    On your birthday, you deposit $540.00 in an account that pays 6% interest, compounded annually. How much is in the account 3 years later? (1 point) • $637.20 • $543.18 • $643.15*** • $1,717.20

    asked by Agala
  79. Maths

    Peter deposit k180600 with bsp which offers 6 1/4% per annum interest. Calculate the Interest earned after 6 years if it is compounded:

    asked by Razah
  80. Science

    If 5 equal pieces of 25 ohm (omega) is joined in parallel then what is the equivalent resistance of it. Is it 5 or 1.please urgent

    asked by Sanjay
  81. Linear Algebra

    I need help for the Linear Algebra B Unit 2 test. Please help. 1. For the data in the table does Y vary directly with X? If it does, write and equation for the direct variation. l X l Y l l 10 l 15 l l 16 l 24 l l 20 l 30 l A- Yes: Y=1.5X B- Yes: Y=2x C-

    asked by Noone
  82. Maths

    How much money would I need to invest for 8 years at 6 1/4% simple interest to earn k500?

    asked by Razah
  83. physics-lenses

    A converging lens of focal length 4.3 m produces a magnified image 6.7 times the size of the object. What is the object distance if the image is real? virtual? pleasse help!

    asked by eliz
  84. Maths

    Having invested k12000.00 into fixed deposit account for 5 years,i received k1850.00 what was the simple interest rate?

    asked by Razah
  85. physics-lenses

    A converging lens f1=10cm, is placed 25cm to the left of a diverging lens, f2=−15cm. An object is placed 22cm to the left of the converging lens. Locate the final image... in cm and its magnification. I'm not sure how to approach this problem, or the

    asked by eliz
  86. Mink high school MatheMatics

    Peter deposit k180600 with bsp which offers 6 1/4%per annum interest. Calculate the interest earned After 6years if it is compounded:

    asked by Regina
  87. physics-lenses

    What eyeglasses would you prescribe for persons with the following conditions: a) A near point of 49.8cm ? b) A far point of 49.8cm ?

    asked by eliz
  88. Math - Trigonometry

    When calculating the lengths for a square based pyramid, is there a way to calculate the length from a point to the point opposite of it, given the side length and height? Thanks in advanced.

    asked by Anonymous
  89. economics

    why we might be concerned about the potential for the misrepresentation of costs.

    asked by annoymous
  90. science

    An object 4.0cm in height is placed at a 25cm from a concave mirror of focal length 15cm.find the position, nature, and size of image formed.

    asked by seerat
  91. Algebra

    6. List of all the Quadrilaterals with exactly one pair of Parallel sides. A. Parallelogram; Trapezoid B. Rhombus; Parallelogram; Rectangle C. trapezoid D Rhombus; Square; Rectangle I wanna say its B but I'm not sure :/ I haven't really got a 100%

    asked by Random Emo Girl
  92. Algebra

    A $4,000 principal is invested in two accounts, one earning 3% interest and another earning 4% interest. If the total interest for the year is $126, then how much is invested in each account?

    asked by J
  93. Math - Trigonometry

    The diagonal of a rectangle of width 3.8, makes an angle of 32° 15' with each of the longer sides. Find the length of the diagonal, and the length of the rectangle. Im not sure how to picture/draw the shape, which in term will tell me if it is cos, sin or

    asked by Anonymous
  94. Math - Trigonometry

    Standing on top of a building 42 m high, an observer sights two objects at P and Q on opposite sides of the building. The angles of depression from the observer to P and Q are 23° 18' and 35° 33' respectively. What is the distance between P and Q to the

    asked by Anonymous
  95. Basic Math

    Surface area of a square pyramid 11in 13in and 9in 11 height 13 side? 9 base edge I keep getting the wrong answer its not 328.62 or 294.93 Square area of a cone 15 side? 12 height 6 base It's not 365.99 or 417.62 I don't need anything

    asked by Sally
  96. Math

    Sorry for posting twice I have to round 7276.74 by two decimal places but I keep getting it wrong...

    asked by Sally
  97. History

    Identify two factors that led to Hitler launching the Battle of Britain. A.the surrender of France, American policy of isolationism, C.the Munich Conference, D.a German alliance with Italy. I think it is d and c, but I'm not too sure.

    asked by Evan
  98. Math

    Surface area of a square pyramid 11in 13in and 9in 11 height 13 slant height 9 base edge I keep getting the wrong answer its not 328.62 or 294.93 Square area of a cone 15 slant height 12 height 6 base

    asked by Sally
  99. Calculus/Optimisation

    A real estate manages 80 apartment units. When the rent of each unit is $180 per month, all units are occupied. However, for each $6 increase in rent, one of the units becomes vacant. Each occupied unit requires an average of $18 per month for service and

    asked by Monica
  100. Algebra

    If 70 is added to a number the result is 40 less than 3 times the number find the number

    asked by Caleb
  101. Language Arts

    1. what is the best way to correct the error in this sentence? Neither Tim nor Kristina go to the movies often A.delete the conjunction B.Change go to attend C.Change the verb to goes** D.Change neither to either 2. Which sentence below contains a

    asked by Anonymous
  102. Math

    A car today costs $32000. Assume that the average annual rate of growth per year was 5.83% over the last 45 years to answer the following question. Round all answers to the nearest whole dollar. How much would the same value of car have cost 45 years ago

    asked by Tyreice
  103. Math

    Professor Smith has invented a time machine and is going to travel back in time 15 years to buy his wife a diamond ring. The ring cost $5000, 15 years ago . The average rate of inflation is 3.09% per year. Round answers to nearest whole $. How much money

    asked by Tyreice
  104. Calculus/Optimisation

    A skateboarded decides to jump off a ramp. The path of the jump from the ramp can be approximated by: h = -3t^2 + 6t + 1 Where h is the height above the ground in meters, s is the horizontal displacement and t is the time after leaving the ramp in seconds.

    asked by Monica
  105. Math

    7m long flagstaff is fixed on tower standing on horizontal plain . Frm a point on the ground angle of elevation of top and bottom of flag staff are 60 and 40 find height of tower

    asked by Anonymous
  106. Algebra

    Difference of two ninbers is 5 and difference of thier reciprocal is 1/10 find the numbers. Answer: X-Y=5 X=Y+5 1/X - 1/Y = 10 1/Y+5 - 1/Y =10 LCM ....

    asked by Anonymous
  107. Math, Induction

    prove by induction that 3.7^(2n)+1 is divisible by 4

    asked by Majeed
  108. Help Polynomial

    A polynomial P(x) has remainder R x +S on division by (x-a) (x-b). If a is not equal to b, express the constants R and S in terms of a, b, P(a), P(b). Find the remainder when P(x) is divided by (x-a)^2.

    asked by youngguru
  109. Math

    A bank advertises a savings account that earns 3% APR compounded daily. What is the "n" become for the compound interest formula?

    asked by Tyreice
  110. Physics

    If a Wire Resistance is 10 ohm at 0 DegC and the same wire Resistance becomes 15 ohm at temperature 100 DegC, then at what temperature the wire Resistance will be 30 ohm? Temperature coefficient of the wire material is 0.0047.

    asked by SIDDHARTHA
  111. English

    Which of the following lines from a&p illustrates updikes use of conflict A. the whole store was like a pinball and I didn't know which one they'd come out of. B. you could see the, when Queenie's white shoulders dawned on then, kind of move, or hop, or

    asked by steve
  112. state & local government

    1. Why have the powers of the governor increased in modern times?

    asked by liz
  113. Maths

    Sophie borrowed $2000 at a simple interest rate of 15% for 3 years to repay the loan and has $900 in interest. If Sophie's interest was calculated at the same rate on the balance owing, how much would she have owed after 6 months if she repaid $40 per

    asked by Lara