Questions Asked in July 2016

Most Popular Questions of July 2016

  1. Physics

    Question: A Toyota car travelled at the rate of 70 km/hour leaves the house 2 hours after a Kia car has left and overtakes it in 5 hours. at what rate was Kia car travelling? What's the Formula pls? Thanks

    asked by John on July 21, 2016
  2. Math

    There are 12 more toy cars than toy trucks in a toy box with a total of 38 toy cars and trucks. How many toy trucks are in the toy box?

    asked by Jane on July 5, 2016
  3. chemistry

    If potassium chlorate is 80 percent pure ,then 48gram of oxygen would produced from how many gram of potassiumchlorate

    asked by biswamohan on July 5, 2016
  4. life Orientation

    Define the concept"risk behsviour"and explain why it is important for teenagers to investigate and be knowledgeable about it

    asked by happiness on July 28, 2016
  5. Statistics

    A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within four percentage points with 99 ​%

    asked by Zechariah on July 6, 2016
  6. Physics

    A body of volume hundred centimetre cube is immersed completely in water contained in a jar containing water. the weight of the jar and the water before immersion was 700 grams. After immersion weight of the jar and the water will be

    asked by Vidhi on July 27, 2016
  7. math

    what is the average of 14 17 22 27

    asked by Anonymous on July 31, 2016
  8. Chemistry

    A CaCl2 solution is given to increase blood levels of calcium. If a patient receives 5.0 mL of a 5.0 % (m/v) CaCl2 solution, how many grams of CaCl2 were given?

    asked by Ava on July 17, 2016
  9. General Mathematics

    A jeepney ride costs P8.00 for the first 4 km and each additional integer km adds P 1.50 to the fare. Use a piecewise function to represent the jeepney fare in term of the distance d in km.

    asked by Cheezy on July 7, 2016
  10. Physical Science

    A 100-g chunk of 72 ∘C iron is dropped into a cavity in a very large block of ice at 0∘C. What is the mass of ice that melts. (The specific heat capacity of iron is 0.11 cal/g⋅∘C.).

    asked by Hannah on July 4, 2016
  11. math

    A lawyer drives from her home, located 6 miles east and 10 miles north of the town courthouse, to her office, located 4 miles west and 14 miles south of the courthouse. Find the distance between the lawyer's home and her office. I know the answer is 26

    asked by Carly on July 19, 2016
  12. chemistry

    Solubility (g/100gH2O) Substance 20∘C 50∘C KCl 34.0 42.6 NaNO3 88.0 114.0 C12H22O11 (sugar) 203.9 260.4 Using the above table, determine whether each of the following solutions will be saturated or unsaturated at 50 ∘C. 1.) Adding 19.7 g KCl to 35.0

    asked by maria on July 17, 2016
  13. algebra

    1. The geometric mean between the first two terms in a geometric sequence is 32. If the third term is 4, find the first term. 2. Insert a geometric mean between k and 1/k. 3. If 2 and 3 are two geometric means between m and n, fond the values of m and n.

    asked by sylvia on July 16, 2016
  14. math

    find the value of k so that k-3,k+1,4k-2 form a geometric sequence.

    asked by peejhay on July 13, 2016
  15. Economics

    Suppose you are a producer of friendship bracelets. How would the following events affect your/the market's willingness and ability supply friendships bracelets? Match the event on the left to the proper determinant on the right. 1. The price of friendship

    asked by Madison on July 21, 2016
  16. Chemistry

    Write chemical formulas for the compounds formed by the following positive and negative ions: Ba2+ and NO3-, Al3+ and Co3, and K+ and PO43-

    asked by Kelly on July 30, 2016
  17. Chem

    Write a chemical formula. . . Ca2+ and S2-

    asked by David on July 30, 2016
  18. Chemistry

    0.110 M in formic acid and 5.5×10−2 M in hypochlorous acid . How to find pH

    asked by Sandov on July 16, 2016
  19. chemistry

    Calculate number of electrons present in 9.5g of PO4^3-

    asked by vivek pathak on July 3, 2016
  20. N.E.S. math

    Add.reduce the sum to lowest terms whenever possible 4/10+2/10+2/10

    asked by Kendrick on July 18, 2016
  21. math

    it takes raiz 30 minute to mark a peper,razi only takes 25 minutes to mark a peper,if they both start marking paper at 11;00am what is the first time they will finish marking paper at same time?

    asked by anam on July 21, 2016
  22. Chem

    Write a balanced equation for: 1. beta decay of iodine-138 2. capture of an electron by cadmium-104

    asked by Valentina on July 21, 2016
  23. chemistry

    Nylon 88 is made from the monomers H2N(CH2)8NH2  and  HOOC(CH2)6COOH.  So, would you characterize nylon 88 as rather an addition or a condensation polymer? Please explain your answer

    asked by Chem on July 24, 2016
  24. Chemistry

    For two questions below, first write and balance the equation for the chemical reaction.  Please, also review the material in Chapter 8, if you will feel you might need it in order to answer the questions.  Next, please answer the following questions:

    asked by Chem&Society on July 20, 2016
  25. Chemistry

    Ammonium phosphate and nickel(II) nitrate solutions are mixed, what precipitates out?

    asked by Anonymous on July 1, 2016
  26. Small Business Management

    You've arrived at the Pecan Shellers conference—your first networking opportunity. Naturally, you're feeling nervous, but to avoid seeming insecure or uncertain, you've decided to A. square your shoulders before entering the room. B. hold an empowered

    asked by Queen B on July 23, 2016
  27. Physics

    an empty rd bottle weighs 60 grams but weighs 120 gram when completely filled with water when the bottle is completely with an unknown liquid it weighs 90 gram what will be the volume of the rd bottle

    asked by Rayan on July 19, 2016
  28. Chem

    Write the two balanced equations, one for the incomplete combustion of methane (to form carbon monoxide and water vapor), and another one for the complete combustion of methane (forming carbon dioxide and whatever vapor). What are the conditions, at which

    asked by Valentina on July 21, 2016
  29. Chemistry

    The atmosphere contains about 5.2 x1015 t of air.  What mass in metric tons of carbon dioxide is in the atmosphere if the concentration of CO2 is 395 ppm?

    asked by Chem&Society on July 20, 2016
  30. chemistry

    What volume of 0.10 M NaOH can be prepared from 250. mL of 0.30 M NaOH? A) 0.075 L B) 0.25 L C) 0.75 L D) 0.083 L E) 750 L

    asked by maria on July 15, 2016
  31. Physics

    In each cycle of its operation, a heat engine expels 2400 J of energy and performs 1800 J of mechanical work. (a) How much thermal energy must be added to the engine in each cycle? (b) Find the thermal efficiency of the engine.

    asked by Theaaaa03 on July 20, 2016
  32. Chemistry

    The reaction 2NO (g) + 2H2 -> N2 (g) + 2H2O (g) was found to follow the rate law, rate = k[NO]^2[H2]. By what factor will the rate of reaction increase when the pressure of NO gas is increased from 2.0 atm to 3.0 atm? Assume all other conditions are held

    asked by Mikey on July 13, 2016
  33. Math

    Tia is investing $2500 that she would like to grow to $6000 in 10 years. At what annual interest rate, compounded quarterly, must Tia invest her money? Round your answer to two decimal places.

    asked by Dw about it on July 19, 2016
  34. maths

    In a graduating class with the same number of boys and girls, 1/8 of the girls and 5/6 of the boys are honor students. What part of the class consists of boys who are not honor students

    asked by athaulla on July 27, 2016
  35. Maths

    Prove that CosB-cosA/cosA+cosB=tanA+B/2tanA-B/2

    asked by Yash Rah on July 5, 2016
  36. Economics

    1. Which of the following is the best example of a public good? A. Highway system B. Shopping mall C. Country club D. Movie theater 2. Which of the following is a characteristic of a public good? A. the private sector could provide it more efficiently B.

    asked by Clark on July 5, 2016
  37. Pre-Cal

    Find sin 2x, cos 2x, and tan 2x from the given information. [1]. sin x = 8/17, x in Quadrant I 1). sin 2x =________. 2). cos 2x =________. 3). tan 2x =________. [2]. sin x = -5/13, x in Quadrant III 1). sin 2x =________. 2). cos 2x =________. 3). tan 2x

    asked by Amber on July 7, 2016
  38. statistics

    in a certain college 33% of the physics majors belong to ethnic minorities. if 8 students are selected at random from the physics majors what is the probability that more than 5 belong to an ethnic minority

    asked by bernie on July 30, 2016
  39. math

    Solve the following problems related to automobile insurance. Jerry Adams normally pays $875 for bodily injury and property damage insurance. His insurance company increases premiums by 150% for 1 accident, 200% for 2-3 accidents, and 250% for 4 accidents.

    asked by C on July 4, 2016
  40. math

    Compute the following costs of services problems. Hourly rate of labor = $12.00 Duration of job = 3 1/2 hours Overhead rate = 66 2/3% Price of parts = $112.50 Find total cost of job. $

    asked by C on July 1, 2016
  41. Economics

    1. According to the data table below, what is the unemployment rate?: Total Population: 1,500 Population under 16 or institutionalised: 360 Not in the labor force: 450 Unemployed: 69 Workers with part-time work who want full-time: 30 A. 10% B. 11% C. 8.4%

    asked by Wesley on July 13, 2016
  42. Physics

    If you weigh 670 N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 15.0 km ? Take the mass of the sun to be ms = 1.99×1030 kg , the gravitational constant to be G = 6.67×10−11

    asked by Ane on July 22, 2016
  43. Pre-Algebra

    Identify the underlined place in 83.5851. Then round the number to that place. A. thousandths; 83.58 B. hundredths; 83.59 C. hundredths; 83.58 D. thousandths; 83.59 A?

    asked by quick help please on July 3, 2016
  44. chemistry

    When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) Imported Asset MgCl2 (aq) + H2 (g), if 72.9 g of Mg and 146.0 g of

    asked by Anonymous on July 11, 2016
  45. maths

    In a competition, 5 points were awarded for each game won and 2 points were deducted for each game lost.A pupil attempted 15 games and got 54 points.How many games did the pupil win?

    asked by yussra on July 26, 2016
  46. English Check answers

    Identify the number of independent and subordinate clauses in the following group of words. When Janine does volunteer work, she feels a sense of joy and fulfillment A. one independent clause only B. one independent clause and one subordinate clause (MY

    asked by Nikki on July 12, 2016
  47. science

    the number of moles of H2O2 required to completely react with 400ml of 0.5N KMnO4 in acidic medium are

    asked by vijendra on July 6, 2016
  48. Microsoft word

    Suppose you want to delete an existing file from within Word. What would you do? A. Open the file in Word, click on Save As, and save the file to the Recycle Bin. B. Click on the File button, choose Save As, find the file, right click on the file, and

    asked by Daniela on July 17, 2016
  49. math

    Polygon MNOPQ is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image M′N′O′P′Q′. The coordinates of point M are (2, 4), and the coordinates of point N are (3, 5).The slope of MN is

    asked by kika on July 6, 2016
  50. Math

    (4,?) is on the line y=2x+3. Find the other half of the coordinate

    asked by Jarret on July 8, 2016

    A solution of a metal carbonate M2CO3, was prepared by dissolving 7.46 g of the anhydrous solid in water to give 1000cm^3 of solution. 25.0cm^3 of this solution reacted with 27.0cm^3 of 0.100 mol/dm^3 hydrochloric acid. Calculate the relative formula mass

    asked by DAVID on July 9, 2016
  52. Physics

    If a spring has a stiffness of 950nm-1, what work will be done in extending the spring by 60mm?

    asked by Blessing on July 18, 2016
  53. Math

    Pen has 1/2 cup and 1/8 cup measuring cups. What are two ways he could measure out 1 3/4 cups of flour? Plz help thanks!

    asked by Pam on July 5, 2016
  54. Math

    Which statement best describes the effect of replacing the function f(x) = 2x − 2 with the function g(x) = 2x + 3? The graph shifts 1 units left. The graph shifts 5 units left. The graph shifts 1 unit right. The graph shifts 3 units right. Plz help

    asked by layla on July 26, 2016
  55. Physics

    Two lead spheres at the same temperature have radii in the ratio 1:2.what is the ratio of their heat capacities

    asked by Vaishnavi on July 20, 2016
  56. Chemistry

    I may need this broken down step by step to understand this problem thanks. A 20.0% by mass solution of phosphoric acid (H3PO4) in water has a density of 1.114 g/ml at 20℃. What is the molarity of the solution?

    asked by Andrew J. DuBois on July 11, 2016
  57. Chemistry

    N2H4 + 2H2O2= N2 + 4H2O What are the mole ratios of hydrazine (N2H4) to hydrogen peroxide (H2O2) and hydrazine to water

    asked by Damon on July 14, 2016
  58. Business Math

    a new piece of equipment cost $18,000 with a residual value of $600 and an estimated useful life of five year. Assuming twice the straight-line rate, the book value at the end of year 2 busing the declining-balance method

    asked by KayKay on July 7, 2016
  59. chemistry

    Calculate the grams or milliliters of solute needed to prepare the following solutions. 1.)75. g of a 7.0 % (m/m) KCl solution 2.) 1250 mL of a 8.0 % (m/v) NH4Cl solution 3.) 270. mL of a 15.0 % (v/v) acetic acid solution I really just need to know how to

    asked by maria on July 17, 2016
  60. Chemistry

    C2D3 has a solubility product constant of 9.14×10−9. What is the molar solubility of C2D3? Express your answer with the appropriate units.

    asked by Damon on July 28, 2016
  61. Probability

    A customer at Cavallaro’s Fruit Stand picks a sample of 3 oranges at random from a crate containing 60 oranges, of which 4 are rotten. What is the probability that the sample contains 1 or more rotten oranges?

    asked by Brandon on July 23, 2016
  62. Math (Rational Inequality)

    A box with a square base is having a volume of 8 cubic meters. Let x be the length of the side of the square base and height of the box. What are the possible measurements of a side of the square base if the height should be longer than a side.

    asked by Lhor on July 25, 2016
  63. Maths

    In a box of chocolates, •one-fifth are plain chocolate •one-sixth are white chocolate •the other 38 are milk chocolate. How many chocolates are there in the box?

    asked by Amy on July 16, 2016
  64. Chemistry

    Express each aqueous concentration in the unit indicated. 45 ppm NO3 -, as molarity of nitrate ion in [mol NO3 - /L].

    asked by Chem&Society on July 20, 2016
  65. Math

    A cyclist rides his bike at a speed of 27 miles per hour. What is this speed in feet per second? How many feet will the cyclist travel in 15 seconds? In your computations, use the fact that 1 mile is equal to 5280 feet. Do not round your answers.

    asked by Jalen on July 25, 2016
  66. Need Help Please- Pre-Calc

    The coordinates of the five quarter points for y=sin(x) are given below. Use these quarter points to determine the​ y-coordinates of the quarter points of y=5sin(-π/3x). (0,0) (π/2,1) (π,0) (3π/2,-1) (2π,0) (Type ordered pairs. Type exact​

    asked by chizoba on July 31, 2016
  67. Chemistry

    Two closed vessels of equal volume both with pressure p1 and temperature t1 are connected to each other by tube with negligible volume. If the temperature maintained of both vessels is then changed to t1 and t2 respectively what is the pressure in the

    asked by Yuktee on July 7, 2016
  68. math

    Find the area of the following plane figure. Use = 3.14. A circle has a radius of 8 cm. What is its area? Area (to the nearest tenth) =

    asked by C on July 5, 2016
  69. Chemistry

    In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be needed in the reaction?

    asked by Mariah on July 14, 2016
  70. kashinath palod

    an object of mass 3 kg is at rest. Now a force of vectorS = 6t2^i + 4tj^ is applied on the object then velocity of object at t = 3 sec. is?

    asked by dnyanada on July 7, 2016
  71. Microsoft word

    Elisa and Josh need to access General Help. Elisa will press the F1 key. Josh will click on ? in the upper-right corner of the Word document. Who will access General Help? A. Neither Elisa nor Josh B. Only Elisa C. Both Elisa and Josh D. Only Josh My

    asked by Daniela on July 17, 2016

    A 1.575 g sample of ethanedioic acid crystals, H2C2O4. xH20 was dissolved in water and made up to 250cm^3 . One mole of the acid reacts with two moles of NaOH. In a titration, 25.0 cm^3 of this solution of acid reacted with exactly 15.6 cm^3 of 0.160 mol/

    asked by Jack on July 9, 2016
  73. Math Fraction

    Bernadette cuts a piece of fabric into 4 peices of the same length. After she cut off 3 feet from one of the pieces, she is left with a piece that is 2 feet long. What is the length of the fabric she started with?

    asked by Hikaru on July 1, 2016
  74. Com 425

    Which of the following statements is an example of metacommunication? 1) "Lets introduce ourselves one at a time." 2) Don't call me names!" 3) I think we should take this vote to the Board." 4) Let's agree to not discuss old issues today."

    asked by Paula on July 17, 2016
  75. geometry

    If BE−→− bisects ∠ABD and m∠ABE = 28°, find m∠ABD.

    asked by g on July 7, 2016
  76. chemistry

    Using dissociation constants from Appendix D in the textbook, determine the value for the equilibrium constant for each of the following reactions. (Remember that when reactions are added, the corresponding equilibrium constants are multiplied.) (i)

    asked by sayuri on July 29, 2016
  77. Math

    Bobs car gets 23 miles per gallon of gas. If bobs car is traveling at a constant rate of 69 miles per hour, how may gallons of gas will his car use in 40 minutes?

    asked by Anonymous on July 10, 2016
  78. PHYSICS--

    The objective and eyepiece of an astronomical telescope are double convex lenses with refractive index 1.5. When the telescope is adjusted to infinity, the separation between the two lenses is 16 cm. If the space between the lenses is now filled with water

    asked by RAM on July 15, 2016
  79. mathematics

    a1=1 ,an=3an-1+2 for n>2

    asked by math on July 17, 2016
  80. Economics

    1. Johnny washes Mrs. Smith s car. She offers to pay Johnny with cookies but Johnny prefers cash. A. Measure of Value B. Medium of Exchange c. Store of Value 2. Johnny puts the money he earns from washing cars under his mattress. He will spend it later. A.

    asked by Anonymous on July 17, 2016
  81. ststistics

    24% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards. Find the probability that the number of college students who say they use

    asked by Anonymous on July 25, 2016
  82. math

    Find the area of the following plane figure. Find the altitude of a triangle whose area is 100 cm2 and whose base is 20 cm. Altitude =

    asked by C on July 4, 2016
  83. Math

    From a window A,10m above the ground, the angle of elevation of the top C of a tower is x degrees,where tan X=5/2 and the angle of depression of the foot D of the tower is y degrees, where tan y=1/4.calculate the height Cd of the tower in metres.

    asked by Naina on July 10, 2016
  84. math

    mr. Carr is installing wall to wall carpeting in a room that measures 12 1/2ft by 9 2/3 ft how much will it coast if the carpet is $26 per square yard

    asked by walter on July 6, 2016
  85. chemistry

    How to solve CoCl2+HO2- ------> Co(OH)3+ Cl- by half reaction method

    asked by Pratik Rathi on July 28, 2016
  86. Chemistry

    Electrochemistry In the electrolysis of aqueous copper(II) bromine CuBr2(aq, 1.00 g of copper is deposited at the cathode. How many grams of bromine are produced at the anode?

    asked by sarah simpson on July 29, 2016
  87. Physics

    At what positions is the speed of a simple harmonic oscillator half its maximum? That is, what values of x / X give v = ±vmax/2 , where X is the amplitude of the motion? Hello, I am so confused about this question. I am not really sure where to start.

    asked by Elizabeth on July 24, 2016
  88. PreCalculus 1

    I have graphed the equations onto my calculator but I don't know how to answer the questions. Can someone explain this to me? 2. Coco, the wonder cat, is watching a spider on a wall that is 18 feet wide and 12 feet tall. The spider moves along for 10

    asked by Anonymous on July 7, 2016
  89. math

    Jason is considering purchasing a new machine to make plastic silverware. The machine produces 1,000 pieces of silverware in two hours. One box contains 50 pieces of silverware and sells for $3.00. If the machine costs $9,000, and runs for 24 hours a day,

    asked by mpho on July 16, 2016
  90. intermediate algebra

    Mr. Lakandula would like to increase his production of milkfish due to its high demand in the market. He is thinking of making a larger fishpond in his 8000 sq. m lot near a river. Help Mr. Lakandulaby making a sketch plan of the fishpond to be made. Out

    asked by sylvia on July 6, 2016
  91. Statistics

    The ages of commercial aircraft are normally distributed with a mean of 13.5 years and a standard deviation of 7.3 years. What percentage of individual aircraft have ages greater than 15 ​years?

    asked by Shawn on July 26, 2016
  92. Chemistry

    A 25g piece of an unknown metal alloy at 150 degrees Celsius is dropped into an insulated container with 200 g of ice. Calculate the specific heat capacity of the metal, given that 9.0 g of ice melted. How would you work this out?

    asked by Fred on July 5, 2016
  93. Physics

    What is the rotational speed of the Second Hand on a clock. Note, the answer must be in rev/s. The Hour Hand is 2.31e-05 rev/s; The Minute Hand is 2.78e-4 rev/s. I've checked with 3 tutors and none of them have gotten an answer that is considered correct.

    asked by Annabelle on July 1, 2016
  94. physics

    A swimming pool of width 9.0 m and lenght 24.0 mis filled with water to a deepth of 3.0 m force 1215 m.Calculate pressure on the bottom of the pool due to the water

    asked by Deekshithaa on July 2, 2016
  95. math

    Total cost of job = $147.51 Duration of job = 5 hours Price of parts = $32.50 Overhead rate = 55% Hourly labor rate = $

    asked by C on July 1, 2016
  96. Economics

    Suppose you are a producer of friendship bracelets. How would the following events affect your/the market's willingness and ability supply friendships bracelets? Match the event on the left to the proper determinant on the right. 1. The price of friendship

    asked by Courtney on July 21, 2016
  97. Chemistry

    How much H3PO4 is needed to neutralize 1 liter of a 0.75M solution of NaOH? (in moles)

    asked by Damon on July 26, 2016
  98. pre cal

    Suppose the speed of sound is c, and gravity is g. If you throw a rock from an initial height h0 and with an initial velocity v0 the height h(t) of the rock after time t is h(t)=−g2t^2+v0t+h0. (The height is negative when the rock is below ground level.

    asked by Anonymous on July 12, 2016
  99. math

    Use the formula to solve the problems. B * In The amount that results when $3,000 is compounded at 7% annually over eight years. $ a0 The interest earned in this case.

    asked by C on July 4, 2016
  100. physics

    Two forces 5N &10N are acting at an angle of 120° between them. Find the resultant force in magnitude and direction.

    asked by sai on July 2, 2016