jojo

Newest questions posted by jojo
  1. Algebra 1

    How do I find a, b, c, and d, for cubic equations in word problems.
  2. algebra

    which ordered pair is a solution to the equation y=-5x+4 A.(2,14) B.(5,-29) C.(3,-19) D.(5,-21)
  3. Science

    PLEASE HELP ITS URGENT contact lenses improve your lives. contact lenses are example of an______? A.skeptical B.experiment C.invention D.evidence E.inference F.prototype G.biased H.technology I.hypothesis
  4. algebra

    solve 3/2x-4=16 A.x=20 B.x=13 1/3 B.x=15 1/3 D.30 I got 40/30 but thats not one of the answers
  5. algebra

    Determine the orderd pair is a solution y=x + 2/7 A.(0,0) B.(-1,2/5) C.(1,2/5)*** D.(2,2 2/5)
  6. algebra

    PLEASE HELP ITS URGENT Pizza costs $1.50 per slice. Use a table and an equation to represent the relationship between the number of slices of pizza bought and the total cost.
  7. algebra

    Give an example of an open equation? my answer is, x + 4 = 7 Until the value of x is found, it is unknown whether the equation is true or false. am i right?
  8. algebra

    Give an example of an open equation? my answer is, x + 4 = 7 Until the value of x is found, it is unknown whether the equation is true or false. am i right?
  9. history

    What is the mayflower compact? A. a long-term treaty for trade routes with the duch tea company B. a formal method to establish systematic order on the pilgrams C. an economic agreement to freely make and sell goods to the british D. a formal agreement by
  10. history

    French took the lead in colonizing the upper Midwest region. From the early 16th century on, French soldiers, missionaries and fur traders left their slight mark upon the St. Lawrence Valley, the upper Great Lakes and points west. For the early French
  11. history

    How were the Spanish able to conquer two great empires with only a handful of soldiers? First, the Spanish had superior military equipment. They were protected by steel armor and had guns. The Aztecs and Incas relied on clubs, bows and arrows, and spears.
  12. Science

    How should I prepare for a field study and what should I do if there's an accident?
  13. Science

    What do safty symbols look like? What do they mean? provide at least three examples.
  14. algebra

    Is -7+9 = -9+7 A. true B. False C. Open
  15. Language Arts

    How do you know squeaky won't let gretchen win in Raymond's Run
  16. pre algebra

    Given w+10 what is the answer to w+(w-12/2 square *3)*7
  17. Social studies

    Which answer choice lists all of the common nouns in the following sentence? A few days before the race, Squeaky met the girls on the street. (1 point) days, race, Squeaky days, race, street days, race, Squeaky, girls days, race, girls, street••
  18. Chemistry

    8) ( 1 point) What is the maximum number of grams PH₃ that can be formed when 3.4 g of phosphorus reacts with 4 grams of hydrogen to form PH₃? P₄ (g) +6H₂ (g) → 4PH₃ (g) * 3.7 g 6.8 g 45 g 270 g 10. Lead nitrate can be decomposed by heating.
  19. Math

    Marcus bake loaf of bread of banana bread for a party he cut the loaf into equal size . At the end of the party there were 6 pieces left . Explain how you can find the number of pieces in the whole loaf if Marcus told 1/3 of the loaf was left
  20. math

    While working on the roof of his house, John leans a 15 foot ladder against a second story window. If the distance on the ground between the base of the ladder and the house is nine feet, at what height does the ladder reach the second story window? In
  21. Algebra 2

    Evaluate the function when x=1. f(x)=4x-2. Write the input and output as a set of ordered pairs, and identify the domain and range of the ordered pair. (6 points) Ordered Pair: Domain: Range: Write an equation of direct variation that passes through the
  22. American History

    Check my answers? 1. In what way was the government of ancient Athens different from the united states A) Athens was a direct democracy in which citizens ** B) Athens was an oligarchy ruled by the wealthy members of the council of five hundred C) Athens
  23. Physical Science

    A man jogs 8 km/h for 5 hours. How far did the man jog?
  24. Algebra

    2a raised to 2 - 4b raised to 3 - 8c raised to 4 divided by 2abc
  25. physics

    A playground merry-go-round of radius 2.00 m has a moment of inertia I = 255 kg·m2 and is rotating about a frictionless vertical axle. As a child of mass 25.0 kg stands at a distance of 1.00 m from the axle, the system (merry-go-round and child) rotates
  26. physics

    The system of small objects shown in the figure below is rotating at an angular speed of 2.0 rev/s. The objects are connected by light, flexible spokes that can be lengthened or shortened. What is the new angular speed if the spokes are shortened to 0.15
  27. physics

    In a circus performance, a large 5.0 kg hoop of radius 3.0 m rolls without slipping. If the hoop is given an angular speed of 3.0 rad/s while rolling on the horizontal and allowed to roll up a ramp inclined at 10° with the horizontal, how far (measured
  28. physics

    A 1400-N uniform boom at ϕ = 70.0° to the horizontal is supported by a cable at an angle θ = 20.0° to the horizontal as shown in the figure below. The boom is pivoted at the bottom, and an object of weight w = 2250 N hangs from its top. (a)
  29. physics

    A person bending forward to lift a load "with his back" (Figure (a)) rather than "with his knees" can be injured by large forces exerted on the muscles and vertebrae. The spine pivots mainly at the fifth lumbar vertebra, with the principal supporting force
  30. physics

    A 3.25-kg object is attached to a vertical rod by two strings as shown in the figure below. The object rotates in a horizontal circle at constant speed 6.60 m/s. (a) Find the tension in the upper string. N (b) Find the tension in the lower string. N
  31. physics

    In a popular amusement park ride, a rotating cylinder of radius R = 3.10 m is set in rotation at an angular speed of 4.20 rad/s, as in the figure shown below. The floor then drops away, leaving the riders suspended against the wall in a vertical position.
  32. physics

    Suppose a 1800-kg car passes over a bump in a roadway that follows the arc of a circle of radius 18.4 m as in the figure shown below. (a) What force does the road exert on the car as the car passes the highest point of the bump if the car travels at 9.24
  33. physics

    An air puck of mass m1 = 0.24 kg is tied to a string and allowed to revolve in a circle of radius R = 1.4 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass of m2 = 1.3 kg is tied
  34. pysics

    A 50.0-kg child stands at the rim of a merry-go-round of radius 1.65 m, rotating with an angular speed of 3.00 rad/s. (a) What is the child's centripetal acceleration? m/s2 (b) What is the minimum force between her feet and the floor of the carousel that
  35. physics

    A rotating wheel requires 6.00 s to rotate 27.0 revolutions. Its angular velocity at the end of the 6.00-s interval is 97.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel?
  36. physics

    A centrifuge in a medical laboratory rotates at an angular speed of 3,550 rev/min. When switched off, it rotates through 54.0 revolutions before coming to rest. Find the constant angular acceleration (in rad/s2) of the centrifuge.
  37. Physics

    A partide of mass m moves along a trajectory given by x= a cos δ1 t and y = asinδ2 t . Find rand y component of the force acting on the patde, potential energy, kinetic enenev of the partide and hence show that the total energe E= KE + PE =1/2
  38. Physics

    A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of
  39. geometry

    Two overlapping identical circles have radii of 6.17. The area of their overlapping sections is 42.7. How far apart are the centers of the circles? Answer is 6.55
  40. geometry

    Two persons each hold the end of a 20 ft long jumping rope. How far apart should they stand if they hold the rope 4.5 ft off the ground, and the middle of the rope just touches the ground? Assume the arc formed by the jumping rope is circular. I know that
  41. gtuc

    1. WRITE A PROGRAM TO CALCULATRE THE AREA OF A RECTANGLE OF LENGTH =5 CM AND BREADTH=8CM. 2. CALCULATE THE PRICE OF AN ITEM COSTING 100 GHANA CEDIS AFTER A DISCOUNT OF 10% IS APPLIED TO IT. 3. WRITE A PROGRAM TO CALCULATE THE SIMPLE INTEREST ON A LOAN
  42. Art

    Which traits is not symbolized by chinese dragons? Wisdom Benevolence Evil Adaptability •• Correct me
  43. Art

    according to egyptian mythology horus son Kebehsenuef fit who has the head of a hawk. what characteristic might make Kebehsenuef fit for the job of watching a dead mummy vital organs? A kind and caring heart The keen eyes of a bird of pray •• Ingenuity
  44. Math PLZZZ HELPP MEE!!!

    the area of the parallelogram. Quadrilateral top: 5 cm side: 14 cm length: 12 cm *38 cm2 *60 cm2 •• *70 cm2 *168 cm2 3. Find the perimeter of the parallelogram. Quadrilateral top: 10.8 ft side: 5.1 ft length: 2.3 ft *15.9 ft *24.84 ft *31.8 ft ••
  45. Math PLZZ HELP ME!!

    Can someone please explain me how to construct a perpendicular bisector!
  46. Math HELPP!!

    Eric Drew and up to's triangle. Which of the following could be true for Eric's triangle. A: all three angles have equal measures B: possible angle measures of the triangle are 92, 48, and 40•• C: two of the angles are equal, and the third angle has a
  47. Math HELPP!!!!

    as a part of a geometry assignment john drew an equilateral triangle. which of the following dimensions could reprent the side length of the triangle john drew? 10,11,12 13,15,17 16,18,21 17,17,17•• Correct me!!
  48. Math. PLZZZ HELP ME!!!

    Jackson made a poster in the shape of a quadrilateral. Opposite sides of the poster are congruent and parallel. Which of the following names the shape of Jackson’s poster? A.square B.rhombus C.rectangle D.trapzoid•• Correct me
  49. Art

    according to egyptian mythology horus son Kebehsenuef fit who has the head of a hawk. what characteristic might make Kebehsenuef fit for the job of watching a dead mummy vital organs? A kind and caring heart The keen eyes of a bird of pray Ingenuity A
  50. Art

    Which of the best definitions of personification? Giving animals and objects human characteristics•• Developing new characteristics of Personality Giving yourself the characteristics of someone else Giving human characteristics of animals Correct me if
  51. U.s GOVERMENT

    Which Enlightenment thinker wrote that people in society are bound to one another by an implicit 'social contract'? A. Voltaire B. Marie Arouet C. Jean-Jacques Rousseau D. Thomas Paine
  52. physics

    A ball is thrown vertically upward with a speed of 19.0 m/s. (a) How high does it rise? (b) How long does it take to reach its highest point? (c) How long does the ball take to hit the ground after it reaches its highest point? (d) What is its velocity
  53. physics

    A jet plane lands with a speed of 81 m/s and can accelerate at a maximum rate of −5.00 m/s2 as it comes to rest. (a) From the instant the plane touches the runway, what is the minimum time needed before it can come to rest? (b) Can this plane land on
  54. physics

    A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 205 mi/h in 2.70 s. (a) Find the average acceleration of the plane. (b) Assuming the acceleration is constant, find the distance the plane moves.
  55. trig

    In a certain right triangle, the two sides that are perpendicular to each other have lengths h = 4.40 m and b = 8.70 m. What is the length of the third side of the triangle?
  56. physics 1

    A ladder 8.70 m long leans against the side of a building. If the ladder is inclined at an angle of 69.0° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?
  57. physics 1

    The base of a pyramid covers an area of 13.0 acres (1 acre = 43,560 ft2) and has a height of 481 ft. If the volume of a pyramid is given by the expression V = (1/3)bh, where b is the area of the base and h is the height, find the volume of this pyramid in
  58. physics 1

    A house is 80.0 ft long and 22 ft wide, and has 8.0 ft high ceilings. What is the volume of the interior of the house in cubic meters and cubic centimeters?
  59. economic

    1 THE COPPERBELT UNIVERSITY SCHOOL OF BUSINESS BSP 110 PRINCIPLES OF ECONOMICS 2015 ASSIGNMENT DUE DATE: 4th January 2016 at 10am QUESTION A manufacturing firm in Kitwe has a normal demand curve given by Q = 5,000 – 100P and its total cost curve in the
  60. economic

    1 THE COPPERBELT UNIVERSITY SCHOOL OF BUSINESS BSP 110 PRINCIPLES OF ECONOMICS 2015 ASSIGNMENT DUE DATE: 4th January 2016 at 10am QUESTION A manufacturing firm in Kitwe has a normal demand curve given by Q = 5,000 – 100P and its total cost curve in the
  61. economic

    q = 5,000 - 100p tc= 10,000 - 10q plot the demand curve marginal revenue curve marginal cost curve profit maximising price, quantity, and profits
  62. managerial finance

    Completed all answers except the last one and I am stuck. Can someone please show me how to solve? I can't figure it out and I would like to have the steps so I can learn how to solve. Thank you! Jiminy's Cricket Farm issued a 30-year, 7.2 percent
  63. trinometry

    consider the polar equation r=7 cos(θ+ pi divided by 4) A) change the equation to rectangular coordinates. B) by completing the square, obtain the Standard form of this well-known equation. I NEED HELP WITH THIS PROBLEM I DON'T KNOW WHERE TO START.
  64. Algebra 2

    Give the domain of the function. g(x)= x^3-1 I think the domain is all real numbers. Am I wrong? If so why?
  65. trignometry

    Some equations cannot be solved by symbolic manipulations. Use a graph to find all solutions of the equation sin 8x = 2x - 1. Show the details in a sketch of the graph.
  66. trignometry

    Give a list of solutions, in the interval [0, 360°), in degrees, of the equation 2cos^24θ + 5 cos 4θ = 3.
  67. trignometry

    give answer in radians for the following equation: sin(x)+2sin(x)cos(x)=0
  68. trigonometry

    solve for equation x(give answer in radians using exact values only. 2sin(x)+cot(x)-csc(x)=0
  69. Finance

    You plan to start a
  70. s. economics

    Brooke and Georgia are neighbors. Each have 40 hours per week. Brooke needs 5 hours to paint a beautiful picture and 2 hours to make a picture frame. Georgia takes 8 hours to paint an equally beautiful picture and 4 hours to make a picture frame. What two
  71. chemistry

    If a 0.01M Mn(NO3)2 solution has an ammonia concentration of 6.0M, would a precipitate form? Calculate the ion product and compare to Ksp.
  72. physics

    When a driver presses the brake pedal, his car stops with an acceleration of -8.7 m/s2. How far will the car travel while coming to a complete stop if its initial speed was 10 m/s?
  73. physics

    A marble is flicked horizontally off a desk with a speed of 3.1 m/s. If it takes the marble 0.8 seconds to hit the ground, how far from the desk does it land?
  74. chemistry

    if you are given 25 grams of H2O how many grams of H2 can you produce??? i am lost... help
  75. chemistry

    how many moles of hydrogen would be produced from 16 moles of Na?/ xH2mol/16Namol??/
  76. chemistry

    is the formation of an aqueous solution with water, a physical or chemical property? physical..... because the substance doesn't change.....
  77. chemistry

    how many significant figures are in the measurement 0.002 ml? 2??
  78. chemistry

    what part of the meniscus must be read to accurately record the volume of a liquid in a graduated cylinder??? the lowest of the bubble?
  79. chemistry

    if 15.95 g dissolves in 100ml of water what will be the solubility in g/ml expressed to the proper number of significant figures?/ 15.95/100 =.0595
  80. Social Studies

    explain whether conflict was unavoidable in Colombia. Why or why not? i don't understand.
  81. math

    a ship leaves point A and travels 60 miles due east, then travels northward 59 degrees to point C, and travel 60 miles to point C, find the distance from point A to point C
  82. chemistry

    i'm stumped on how to write this in mathematical form. it says the rate increased by a factor of 2000, I am supposed to determine by what percent the Energy of activation will be reduced. The answer is 25% in the book. I don't know how they get the answer
  83. Science

    In the ocean, there are area's where there are very few living things. _______ is the term that when this happens to a natural area.
  84. Chemistry

    1. What would be the effect on the reaction rate if the [O2] were doubled? 2. What would be the effect on the reaction rate if the pressure on the reaction were doubled? 3. Assume the reaction is reversible and at equilibrium. What shifts in the
  85. chemistry

    A scientist measures the standard enthalpy change for the following reaction to be -172.4 kJ : 2SO2(g) + O2(g) 2SO3(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of SO2(g) is
  86. POL 201

    The Mayflower Compact was a type of early constitution because (Points : 1)
  87. Chemistry

    What is the molarity of a 2.50 x 102 cm3 solution containing 560.0 g of C6H12O6?
  88. English

    Write a paragraph in which you compare and contrast the motivations of Brutus and Cassius, and determine whether the ends justify the means. ("The ends justify the means" is simply saying that the good results, or "ends," make it acceptable, or
  89. stats

    a hat contains a number od cubes: 15 red, 10 white, 5 blue and 20 black,20 years gone and i am back again. one cube at random. what is the probability that it is: a) a red cube? b) not a red cube? c) a cube that is white or black? d) a cube that is neither
  90. stats

    i need help with this Question The following data represents Total Credit Hours from our class survey. 90 54 98 45 65 43 12 48 56 12 15 60 38 18 67 125 50 43 26 64 22 52 69 You may use your calculator to find the following statistics: Mean __________
  91. STATS

    i need help with this Question The following data represents Total Credit Hours from our class survey. 90 54 98 45 65 43 12 48 56 12 15 60 38 18 67 125 50 43 26 64 22 52 69 You may use your calculator to find the following statistics: Mean __________
  92. Stat

    1) one indicator of a outlier is that an observation is more than 2.5 standard deviations from the mean. Consider the data value 80. (a) if a data set has mean 70 and standard deviation 5, is 80 a suspect outlier? be sure to work that explains your answer
  93. Stat

    when you are comparing two sets of data, and one set is strongly skewed and the other is symmetric, which measures of the center and variation should you choose for the comparison?
  94. chemistry

    what is the initial rate of the reaction, in mol/(L*s), under theswe conditions? Concentration=0.40 mol/L
  95. chemistry

    nitrosyl bromide, NOBr is formed from NO and Br2-. Experiments show that this reaction is second order in NO and first order in Br2. what is the rate equation for this reaction?
  96. chemistry

    The vapor pressure of ethanol is 54.68 mm Hg at 25oC. How many grams of chlorophyll , C55H72MgN4O5, a nonvolatile, nonelectrolyte (MW = 893.5 g/mol), must be added to 207.6 grams of ethanol to reduce the vapor pressure to 53.60 mm Hg ? ethanol = CH3CH2OH =
  97. chemistry

    calculate the Henry's law proportionality constant for N2? partial pressure at 1 atm=0.78 atm solubility at 1 atm= 5.3 x 10^-3 mol/L
  98. chemistry

    what is the solubility of N2 at a pressure of 10 atm? partial pressure at 1 atm=0.78 atm solubility at 1 atm= 5.3 x 10^-3 mol/L
  99. chem

    at a depth of 100m underwater the water pressure is equal to 10 atm of pressure. what is the partial pressure of N2 at a pressure of 10 atm?
  100. chemistry

    A 35.0g sample of ethylene glycol is dissolved in 500.0g of water. The vapor pressure of water at 32C is equal to 35.7mm Hg. What is the vapor pressure of the water-ethylene glycol solution at 32C?

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