Posts by Jacob

Total # Posts: 956

  1. Math

    In an effort to retire comfortably, you decide to deposit $750 at the end of every month into an annuity that pays 5% compounded monthly. How much will you have saved in 40 years when you are ready to retire? Round to the nearest cent.
  2. math

  3. math

    A charity raffle offers a first prize of $1,000,000, a second place prize of $100,000 and a third place prize of $10,000. A total of 500 000 tickets will be sold. What price should be charged for a ticket in order for the charity to make a 60% profit on this raffle?
  4. English

    I have an assignment to write a 4 page audience analysis essay of a persuasive article. What is an audience analysis essay, and how do I go about writing a 4 page audience analysis based off of an article?
  5. Chemistry

    2. Solid ammonium iodide decomposes to yield ammonia gas(NH3) and hydrogen iodide gas at 400oF. The equilibrium constant for this reaction is 0.215. Ten grams of ammonium iodide are sealed in a 10.0 L flask at equilibrium. Complete the following: a. Write a balanced reaction b...
  6. English

    1. The best way to improve listening comprehension is to a. take informal notes on what you hear. b. use complete sentences to take detailed notes of both main ideas and details. c. concentrate on listening to the speaker's transitions. (C) 2. Critical listening occurs ...
  7. Math

    ya i agree ms.sue can be an a$$
  8. math

    which word or words correctly complete the sentence? a ________ has five faces, five vertices, and eight edges. a. triangular pyramid b. cube c. pentagonal pyramid d. rectangular pyramid
  9. ELA

    Mary, you're right.
  10. Physics

    A frog in a hemispherical pod finds that he just floats without sinking in a fluid with a density of 1.33 g/cm3. If the pod has a radius of 5 cm and negligible mass, what is the mass of the frog? Answer in units of kg.
  11. Math

    water accounts for about 60% of a person's body weight. a. write an equation that represents the water y of a person who weights x pounds. identify the independent variable and the dependent variable. b. make an input-output table for the equation in part (a) use the ...
  12. Pre calc

    Use half angle indentites to find an exact value without a calculator Cos(11?/12)
  13. Pre calc

    Perform the indicated operation and simplify the result Tanx(cotx-cscx)
  14. Math

    The temperatures at 10pm were 58f outside and 67f inside. At 4am they were 48f outside and 62f inside. Draw a graph of these data points and calculate slope of the line connecting them.
  15. Math

    A tool shed 250cm high and 100 cm deep is built against a wall. Calculate the shortest ladder that can reach from the ground, over the shed, to the wall behind. How can I solve this?
  16. Pre calc

    Perform the indicated operation and simplify the result . Cot x(tan x- sec x) Please help , I am struggling a lot !! Thank you!!!
  17. Physics

    On a very muddy football field, a 100 kg linebacker tackles an 75 kg halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.5 m/s north and the halfback is sliding with a velocity of 7.5 m/s east. What is the magnitude of the velocity at ...
  18. math

    Paulo earns a salary of 15000$ per month for selling cell phones. He receives an extra 30$ for each cell phone over 100 units that he sells. How much will be make if he sells R cell phones? 50 cell phones?
  19. History

    one of them is incorrect, read your textbook!
  20. Math

    Symbol for A
  21. Math

    Choose the symbol that completes the statement. 7/8. 8/10* A < B > C =
  22. Physics

    A bicycle is racing around on a horizontal surface in a circle of radius 27 m. The force exerted by the road on the bicycle makes an angle of 16 degrees with the vertical. What is its speed?
  23. Language arts

    My Answer B.
  24. Language arts

    The word expectations best describes which situation from “Two Kinds”? Waverly’s reputation as a chess champion the mother’s hopes for her daughter to become a prodigy Mr. Chong’s retirement from teaching piano the daughter’s performance at the ...
  25. math

    Sarah is 5 years younger than 9 times Mario's age
  26. Physics

    A red ball is thrown directly upwards from the ground with an initial velocity of 35.0 m/s. At the same time, a blue ball is thrown directly upwards from he ground with an initial velocity of 10.0 m/s. 1. How high is the red ball when the blue ball reaches its highest point? 2...
  27. Maths

    Six numbers are written in ascending order: 1.4, 3, 4.7, 5.8, a, 11. Find all possible values of a if the number 11 is considered to be an outlier. The answers say 5.8 is less than or equal to a<6.2 but i am struggling to figure this out
  28. Maths

    Find the interquartile range for a set of data if 75% of the data are above 2.6 and 25% of the data are above 3.7.
  29. Mathematics question

    In my town some of the animals are really strange. Ten percent of the dogs think that they are cats and ten percent of the cats think they are dogs. All the other cats and dogs are perfectly normal. One day I tested all the cats and dogs in the town and found that 20% of them ...
  30. Maths

    In addition to spanning a river which is 50 metres wide, a straight bridge also has considerable overlap of both banks of the river. One third of the bridge overlaps one bank and one half overlaps the other bank. The total length,in metres, of this bridge is A. 100 B.150 C.200...
  31. Washington state history

    please help What about Washington’s post-World War II economy does the image represent? A.a change in focus to large businesses, science, and technology B.a change in focus to large businesses, science, and technology C.a decline in building and city growth D.a shift from...
  32. College Chemistry

    No Thank you very much.
  33. College Chemistry

    You have combined 1.218 moles of calcium ions and 0.943 moles of lithium ions in enough solvent to make 500.00mL of solution. What is the mole fraction of lithium ions in this solution? What type of problem is this and how do I set it up to solve?
  34. maths

    A 60m long bridge has an opening in the middle and both sides open up to let boats pass underneath. The two parts of the bridge floor rise up to a height of 18 m. Through what angle do they move?
  35. Algebra 2

    Use the values of a_1( 1 is below the a) and s_n (n is below also) to find the value of a_23. A_1=10, s_23=2760, find the value of a_23 Please help, I really need help. Thanks.
  36. spanish

    rewrite each statement two ways using object pronouns : Tenemos que recordar la informacion.
  37. Physics

    A diver springs upward with an initial speed of 2.93 m/s from a 3.0-m board. (a) Find the velocity with which he strikes the water. [Hint: When the diver reaches the water, his displacement is y = -3.0 m (measured from the board), assuming that the downward direction is chosen...
  38. math

    yes! thank you much
  39. math

    seven times the sum of a number and seven is 13 more than the number. what is the number? i know it cant be that hard but please help
  40. Math

    A box weighing 700 pounds is on a ramp inclined at 15 degrees with the horizontal. Find the force necessary to prevent the box from sliding down the ramp.
  41. Math

    A diagonal of a parallelogram is 10 inches long and makes angles of 25 degrees and 43 degrees with the side. how long is the longest side?
  42. word problem

    Thank you
  43. word problem

    Ashton and molly start out 97.2 miles apart .They begin riding their bicycles toward each other with Aston riding three mph faster than Molly. If they meet in three hours, how fast was each person riding? Please help
  44. English

    Help Me!! ____no centeral goverment at the time, there would have been no peace inth land. a)There had been b)Should there be c)Had there been Wich will be correct answer?
  45. Calculus

    Prove that the function defined by: f(x)={1 if x is rational, 0 if x is irrational is not integrable on [0,1]. Show that no matter how small the norm of the partition, ||P||, the Riemann sum can be made to have value either 0 or 1.
  46. History

    what is it a b c d
  47. chemistry

    Use the table of complex ion formation constants to calculate the molar concentration of free Fe^2+ in 0.510M aqueous solution of potassium hexacyanoferrate(II) K4(Fe(CN)6) at 25 degrees celsius. I know the answer is 1.96*10^-6 m, but I'm at a loss on how to get there. I&#...
  48. MATH

  49. Chemistry

    Urea, which has the chemical formula (NH2)2CO, is a fertilizer that can be prepared by reacting ammonia (NH3) with carbon dioxide (CO2). Given the following chemical equation, what is the theoretical yield of urea (in grams) if 4.16 mol ammonia is the limiting reactant? 2 NH3(...
  50. Science

    What is the identity of the precipitate that forms when 70 mL of 0.3 M BaCl2 reacts with 65 mL of 0.35 M Na2CO3
  51. Social Studies

    Your answer is wrong, check it again
  52. Physics

    State the similarities between Coloumb's law And Newton's Law Of Universal Gravitation.
  53. Chemistry

    Fireflies flash at a rate that depends on the temperature. At 29oC, the average rate is 3.3 flashes every 10 seconds, whereas at 23oC, the average falls to 2.7 flashes every 10 seconds. Calculate the "energy of activation" (in kJ/mol) for the flashing process.
  54. Physics

    A hollow sphere has a uniform volume charge density of 4.61 nC/m3. The inner radius is a = 14.6 cm and the outer radius is b = 43.8 cm. What is the magnitude of the electric field at 21.9 cm from the center of the sphere? What is the magnitude of the electric field at 140. cm ...
  55. Math

    Order the following from least to greatest 0.3 3/5 0.66 2/3 0.35
  56. Linear Algebra

    (a) Use the triangle inequality: ||u + v|| <= ||u|| + ||v|| to prove that (i) ||u - v|| <= ||u|| + ||v|| (ii) ||u|| - ||v|| <= ||u - v|| (b) If ||u|| = 5 and ||v|| = 3, what are the smallest and largest possible values of ||u - v|| and ||v - u||?
  57. Linear Algebra

    Find the matrix of the following transformations: (a) Multiplication of the point (x, y, z) in ?^3 to give the point (x - y, y + 2z, x + z) (b) Reflection of points in ?^2 across the line in y = x.
  58. Math

    -1/2x-3greater than 8
  59. algebra

    Jane has $4.50 in pennies, nickels and dimes. She has twice as many pennies as she has nickels and dimes combined. How many of each coin does she have?
  60. english3

    Even a young actor can appear old through the ___ of stage makeup.
  61. english

    Pinocchio's lies cause his nose to grow, but when he ___ it returns to its usual size.
  62. math

    A bag contains 45 marbles of various colors. Jon draws 60 times, each time replacing the marble before drawing again. He gets a total of 12 blue marbles. Which is best prediction of how many blue marbles are in the bag?
  63. Math

    The table shows the results of a spinner with four colored sections. Use the table to answer the question. The spinner is spun 50 more times. Which is the best prediction for the number of times the spinner will stop on blue?
  64. math

    Brahim completed 18 free throws and missed 12. Using experimental probability, how many free throws is he predicted to complete in the next 100 tries?
  65. calculus

    Find the values for the following functions. If f(x)=2^x, show that f(x+3) -f (x-1)=15/2f(x) If G(x)= sin 2x, find G(0),G(1/4 pie),and G(7/8 pie)
  66. calculus

    Find the domain of the variable x for which the following equations determine y as a real function of x. If G(x)= sin 2x, find G(0),G(1/4 pie),and G(7/8 pie) can someone help me please!
  67. Math Help ;)

    Oh ok. I get it now. Thank you so much Ms.Sue. Have a wonderful day!
  68. Math Help ;)

    So, I've been stuck in these for quite some time.... can someone help me? Which ratios can form a proportion? A) 9/45 , 8/40 B) 8/12 , 12/21 C) 8/12 , 12/15 D) 9/22 , 14/28 I think it might be C but my brain is fried. Thank you so much, Jacob
  69. Physics

    A football is kicked at ground level with a speed of 17.7 m/s at an angle of 39.8 ? to the horizontal. How much later does it hit the ground? Answer=> t=_____ s Express your answer using three significant figures and include the appropriate units.
  70. Chemistry

    A 50.0 mL aqueous solution of sodium hydroxide has a pH of 12.50. If 36.00 ml of 0.0200 mol/L sulfuric acid is added to this sodium hydroxide solution, what will be the new pH of the resulting solution? Assume that the temperature stays constant at 25 C, and that the volumes ...
  71. Pre Algebra

  72. Pre Algebra

    No so the answer would be -2. If so i get what I did wrong. For some reason I always make simple mistakes.
  73. Pre Algebra

    No -1 would be the answer
  74. Pre Algebra

    So the answer would be -64
  75. Pre Algebra

    I meant -8 instead of -5
  76. Pre Algebra

    N*-5 / -4=4 N*-5 = 8 N= -40
  77. Pre Algebra

    Please help this is really ergent.
  78. Pre Algebra

    A number is divided by -4, then multiplied by -5. The result is 40. What is the number? I had problem finding a formula for it. And this one was also like it. A number is multiplied by -8, then divided by -4. The result is 4. What is the number?
  79. Check my awns-The true cost of fossil fuels - Quiz

  80. Check my awns-The true cost of fossil fuels - Quiz

    When you say last one is wrong do you mean the one I commented ? Or the last one
  81. Check my awns-The true cost of fossil fuels - Quiz

  82. Check my awns-The true cost of fossil fuels - Quiz

    Which of the following is one benefit of recycling It increases the volume of solid waste. If it is recycled, and materials will not be biodegradable. It conserves resources and energy. It uses more raw materials that need to be mined. **?
  83. Check my awns-The true cost of fossil fuels - Quiz

    _________ is a solid fossil fuel that forms from plant remains. Coal ** Hydrocarbon Natural Gas Petroleum Air pollution can be controlled by Permitting more storm runoff. Burning more coal. Eliminating Sewage Putting scrubbers on power ** Formed how are fossil fuels? They are ...
  84. math

    Tommy walked 3 2/7 miles. write the distance Tommy walked as an improper fraction. A.4 B.4/3 <<my answer<< C.5/2 D.23/7 please tell me if B is right.
  85. Check My Answer Please

    Why were women fighting for suffrage? A:because they wanted to end abuse toward women B:because they wanted to win the right to vote**** C:because they wanted to gain the right to work D:because they wanted to end women's inequality Completely doing an educated guess right...
  86. math

    r is no less than 1 unit from 24
  87. PreCalc

    Suppose that $14,000 is invested in a savings account paying 5.2% interest per year. (a) Write the formula for the amount A in the account after t years if interest is compounded monthly.
  88. math

    Tony bought some stock for $504. If each share had cost $4 less he could have bought 3 more shares for the same $504. How many shares of stock did he buy
  89. algebra

    The diagonal and the longer side of a rectangular plot are together three times the length of the shorter side. If the longer side exceeds the shorter side by 140 ?feet, what is the area of the? plot?
  90. algebra

    Find the equation for the graph of the path of a point? P(x,y) that moves such that? P(x,y) is the same distance from the point ?(14?,0) and the? y-axis.
  91. Algebra

    Divide by long division (4x^3 - 2x^2 - 8x+3)/(x^2 +5) Please help I can't figure this out.
  92. Technology

    You smell like your ugly mama
  93. maths

    Using trigonometric ratios find the remaining side lengths and angle measurements to 2 decimal places each: (a) ? = 35°, ? = 90°, a = 30 (b) ? = 90°, b = 7, c = 6 (c) a = 33, b = 56, c = 65

    Why won't the cookies taste the same though...? I'm so confused. I've been doing this stupid test for hours
  95. Math

    Why do you have to use estimation to find the number of triangles you need for the string? I was wondering why this question is quite confusing and i was wondering if you can explain it to me in a way i can understand it. I'm not looking for an answer just a more simpler ...
  96. Chemistry

    0.5g of MG ribbon is reacted with 100ml of 1M HCL. The initial temperature of HCL is 20.4 degrees celsius. After the reaction the highest recorded temperature is 40.7 degrees celsius. Calculate the molar enthalpy of MG. I tried to find mol from HCl and then use nH=mcdeltat. ...
  97. Algebra

    I mean this is great, but I want to know how to do it.
  98. math

    A=50 S=62
  99. Science

    Fuel can burn in the furnace.
  100. MATHS

    The square of a number is 3 more than half the number.find the possible values of the number.
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