Popular questions and responses by steve
  1. 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 on March 17, 2017
  2. math

    Marvin the fly starts at $(0,0).$ Each step, Marvin moves one unit right or one unit up. He is trying to get to the point $(5,7)$. However, at $(4,3)$ there is a frog that will eat him if he goes through that point. In how many ways can Marvin reach

    asked on April 7, 2020
  3. Algebra 1

    What is the value of n so that the expression x^2+11x+n is a perfect square trinomial?

    asked on February 11, 2015
  4. physic

    Calculate the pressure exerted on the ground by a79kg person standing on one foot. Assume that the bottom of the person's foot is 13cm wide and 28cm long.

    asked on July 21, 2010
  5. physics

    A block of metal which weighs 60 newtons in air and 40 newtons under water has a density, in kilograms per meter cubed, of:

    asked on July 30, 2011
  6. english

    Nobody on the Tri Rail seems to know ________ way around Miami. A) their B) his C) there D) his or her

    asked on October 13, 2017
  7. physics

    A C1= 2.50uF capacitor is charged to 862 V and a C2= 6.80uF capacitor is charged to 660 V . These capacitors are then disconnected from their batteries. Next the positive plates are connected to each other and the negative plates are connected to each

    asked on March 8, 2013
  8. Algebra 1

    Which point on the axis satisfies the inequality y

    asked on December 20, 2014
  9. Chemistry

    What is the mole fraction of NaBr in an aqueous solution that contains 20.1% NaBr (weight/weight%)?

    asked on April 7, 2016
  10. English

    Select the noun clause to complete the sentence. They would study (choose) during lunch. Choices How the electoral college works And chat about the news The history of aluminum foil For tomorrow's math exam Is it the last one?

    asked on February 24, 2019
  11. Algebra 1

    suppose y varies directly with x and y = 14 when x = -4 what is the value of y when x = -6

    asked on December 3, 2014
  12. economics

    Suppose the price of widgets falls from $7 to $5 and consumption of widgets rises from 15 widgets a month to 25 widgets. Calculate your price elasticity of demand of widgets. What can you say about your price elasticity of demand of widgets? Is it Elastic,

    asked on September 14, 2012
  13. Math

    Let R1 and R2 be the remainders when polynomials x^3 + 2x^2 - 5ax - 7 and x^ 3 + ax^2 - 12 x + 6 are divided by ( x + 1 ) and ( x - 2 ) respectively. If 2R1 + R2 = 6, find a. Please work the complete solution.

    asked on April 14, 2013
  14. math

    a multiple choice test has 8 questions with 4 possible answers for each question. if a student were to guess the answer to each question how many different ways would there be to answer the test A. 32 B. 4 C. 65 536 D. 4 096

    asked on May 24, 2011
  15. english

    Identify the correct sentence. a. Have you spoken to your professor about your grade in English class? b. Have you spoken to your prof about your grade in english class? c. Have you spoken to your Professor about your grade in English class? d. Have you

    asked on October 13, 2017
  16. English

    Select the adjective phrase to complete the sentence. Lucian painted a picture choose With oil paints Of the Taj Mahal And hung it up. During spring break Is the answer during spring break?

    asked on February 22, 2019
  17. Short Story (Happy Event by Nadine Gordimer)

    I have already found the stereotype in the story about how each tribe got along with the same tribe. I need help on finding another stereotype in the story. I am having difficult finding it. The question is: a) Identify another passage from "Happy Event"

    asked on August 14, 2013
  18. Algebra2

    Expand the logarithmic expression. log8 a/2 My answer is log8a-log8 2

    asked on November 22, 2016
  19. English

    Which of the following moments in "The Most dangerous Game" represents an example of foreshadowing? a-Whitney & Rainsford';s discussion about hunting b- Rainsford's observing the gate of the chateau c- Whitney's comment about the light of Rio?

    asked on March 30, 2015
  20. Algebra 1

    What equation has a graph parallel to the graph of 9x + 3y = -22? 1- y = 3x -22 2- y = -3x + 8 3- y = 1/3 x + 12 4- y = - 1/3 x - 2

    asked on December 5, 2014
  21. Algebra2

    f(x)=3x-7 and g(x) = -2x-6 find (fog)(4)

    asked on January 21, 2017
  22. Physics

    How many kg of ice needs to be added to 1.31 kg of water at 64.9°C to cool the water to 14.9°C when the Latent heat of ice = 80 kcal/kg?

    asked on May 8, 2015
  23. Short Story (Happy Event)

    Ella the white protagonist of "Happy Event", has perceptions that are limited by her attitudes and prejudices. She believed she was wise to hire servants who belonged to the same tribe, but "always felt puzzled and rather peevish, then, when, as had

    asked on August 13, 2013
  24. Inorganic chemistry

    The following reaction occurs spontaneously. 2H+(aq)+ca(s) Ca2+(aq)+H2(g) write the balanced reduction half-reaction

    asked on April 11, 2009
  25. English

    Read this excerpt from Alexander Pope's The Rape of Lock "No common weapons in their hands are found/ Like gods they fight l, nor dead a mortal wound.../ See, fierce Belinda on the Baron flies/ With more than usual lightning in her eyes..." This account of

    asked on November 16, 2017
  26. Algebra

    The ordered pairs (1,6), (2,36), (3,216), (4,1296), and (5,7776) represent a function. What is a rule that represents this function?

    asked on October 17, 2014
  27. Algebra 1

    What is the excluded value of the rational expression? 2x+6 / 4x-8

    asked on April 13, 2015
  28. Algebra 1

    Which method would be the simplest way to solve the system? 7x +5y = 19 -7x-2y = -16 graphing substitution elimination or distributive

    asked on December 18, 2014
  29. physics

    Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second a force of 95.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 21.0 kg. (c)

    asked on February 20, 2014
  30. Trigonometry

    change 8 cis 240 degrees to rectangular form

    asked on December 9, 2013
  31. Chemistry

    The molar solubility of Pb(IO3)2 in a 0.10 M NaIO3 solution is 2.4 10-11 mol/L. What is Ksp for Pb(IO3)2?

    asked on April 28, 2011
  32. AP Chemistry

    A 12.5843 g sample of ZrBr4 was dissolved and, after several chemical steps, all of the combined Bromine was precipitated as AgBr. The silver content of the AgBr was found to be 13.2160 g. Assume the atomic weights of silver and bromine to be 107.870 and

    asked on September 5, 2008
  33. Algebra2

    The water level varies from 12 inches at low tide to 52 inches at high tide. Low tide occurs at 9:15 am. High tide occurs at 3:30 pm. What is a cosine function that models the variation in inches above and below the water level as a function of time and

    asked on May 11, 2017
  34. Chemistry

    Calculate solubility of AgCl (in g/L) in a 6.5*10^-3 M silver Nitrate solution ksp= 1.8 * 10^-10 (AgCl molecular mass is 143.3g) any idea on how to do this this is what i tried> AgCl--> Ag + Cl I 6.5*10^-3 0 C same x E same x ksp = [Ag][Cl] (1.8 * 10^-10)

    asked on February 18, 2016
  35. English

    Select the adverb clause to complete the sentence. Choose, Fatima will take her dog for a walk. Choices are: In a few hours Always responsible a day reliable Despite the bad weather Before the sun sets I am not sure which one to choose both the first one

    asked on February 23, 2019
  36. geometry

    Write the standard equation for the circle center (-6,-8), that passes through (0,0). I know that the formula would leave the 1qstr part as (x+6)+(y+8) I'm not sure about the radius when it goes through (0,0)

    asked on May 7, 2016
  37. English

    With which of these statements does the crone in "The Wife of Bath’s Tale" save the life of the knight? • “A woman wants… sovereignty/Over her husband as over her lover…” • "It's little wonder if I twist and wallow!/God that my heart would

    asked on September 17, 2017
  38. Geometry

    Which rule describes the transformation that is a reflection across the x-axis? a- (x,y)>(x,-y) b- >(-x,y) c_ >(-x,-y) d- >(y,x) my answer is a

    asked on November 5, 2015
  39. English

    Read the following line from Act IV, Scene 5 of Romeo and Juliet, when Capulet speaks of his daughters apparent death: Death lies on her like an untimely frost Upon the sweetest flower of all the field. How does Shakespeare use a simile to emphasize the

    asked on March 29, 2015
  40. Algebra2

    The function f(theta) and g (theta) are sine functions where f(0)=g(0)=0. The amplitude of f (theta) is twice the amplitude of g(theta). The period of f(theta) is one-half the period of g(theta). If g (theta) has a period of 2pi and fpi/4=4. Write the

    asked on May 11, 2017
  41. Algebra2

    A pentagon can be divided into 5 congruent triangles. The function y=5 tan theta models the height of each triangle. What is the area of the pentagon if theta = 54 degrees?

    asked on May 1, 2017
  42. Algebra2

    Simplify the rational expression. State any restrictions on the variable. (n^4-11n^2+30)/(n ^4 -7n^2+10) My answer is n^2-6/n^2-2 except +-sqrt5 and +-sqrt2

    asked on February 6, 2017
  43. pysics

    A projectile of mass 0.777 kg is shot from a cannon, at height 6.6 m, as shown in the figure, with an initial velocity vi having a horizontal component of 7.8m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and

    asked on October 4, 2011
  44. Physics

    A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1770 kg. It has strayed too close to a black hole having a mass 109 times that of the Sun. The nose of the spacecraft points toward the black hole, and the

    asked on March 21, 2011
  45. Pre-Algebra

    Three individuals form a partnership and agree to divide the profits equally. X invests $9,000, Y invests $7,000, Z invests $4,000. If the profits are $4,800, how much less does x receive compared to having the profits divided in proportion to the amounts

    asked on June 14, 2010
  46. Physics

    Pulling up on a rope, you lift a 4.35-kg bucket of water from a well with an acceleration of 1.78m/s^2. What is the tension in the rope?

    asked on March 8, 2010
  47. MATHS

    A MAP HAS A SCALE OF 1 CM = 5 KM On a map, a forest is shown as a rectangle measuring 2 cm by 1.5 cm what is the real area of the forest

    asked on February 21, 2018
  48. Algebra 1

    a ball is thrown into the air with an upward velocity of 32 ft per second. Its height h in feet after t seconds is given by the function h(t)=-16t^2 +32t+6. How long does it take the ball to reach its maximum height? What is the balls maximum height? a- 22

    asked on March 27, 2015
  49. chem

    Consider the reaction: C3H8(g) + 5 O2(g) ® 3 CO2(g) + 4 H2O(g), where DH = – 531 kcal/mol. Which statement is true? A.Heat is absorbed. B.The bonds formed in the products are stronger than the bonds broken in the reactants. C.The products are higher in

    asked on March 21, 2012
  50. Chemistry

    A student placed 12.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-ml mark on the neck of the flask was reached. The flask was then shaken until

    asked on September 29, 2010
  51. Algebra2

    Use the graph of y=sin2theta to find the value of sin 2 theta for theta=pi/4. a--1 b-0 c-0.5 d-1 my answer is -1

    asked on May 1, 2017
  52. Algebra2

    What is the product in simplest form? State any restrictions on the variable. 4a^5/7b^4 times 2b^2/2a^4 My answer is 4a/7b^2 except a=0 and b=0

    asked on February 6, 2017
  53. geometry

    In triangle FGH, g = 8ft, h=13ft, and m=F= 72degrees. Find m

    asked on March 23, 2016
  54. Math

    A model rocket is launched from a roof into a large field. The path the rocket can be modeled by the equation y=-0.04x^2+8.3x+4.3 where x is the horizontal distance in meters, from the starting point on the roof and y is the height in meters, of the rocket

    asked on May 25, 2015
  55. Math

    Tasha is planning an expansion of a square flower garden in a city park. If each side of the original garden is increased by 7m the new total area will be 144m^2. Find the length of each side of the original garden.

    asked on March 27, 2015
  56. Math

    One fourth of herd of goats was seen in the forest. Twice the square root of the number of the herd had gone up the hill and the remaining 15 goats were on bank of the river. Find the total number of goats. I got the equation to be x/4 + 2 root x + 15 = x

    asked on April 27, 2013
  57. programming

    This pseudocode should detrmine the rental fees for cars // Standard cars rent for $65 per day; compacts rent for $40 per day // and subcompacts rent for $30 per day // Rentals for at least 7 days receive a 20% discount // An error message is displayed if

    asked on December 1, 2011
  58. English

    Which line best states the theme of John Donne's Holy Sonnet 10? A. "and soonest our best men with thee do go" B. "Death be not proud, though some have called me" C. "Death be not proud, though some have called thee..." D. ".. And doest with poison, war,

    asked on October 28, 2017
  59. Environmental Science

    1. A prion is an infectious, self-reproducing protein structure. True X False 2. As one organism eats another, toxins can be spread throughout the food chain. True False x 3. The problem with DDT in the environment is that it decomposes quickly. True False

    asked on October 10, 2017
  60. Algebra2

    The amount of oil used by a ship traveling at a uniform speed varies jointly with the distance and the square of the speed. The ship uses 30 barrels of oil in traveling 85 miles at 42 mi/h. How many barrels of oil are used when the ship travels 26 miles at

    asked on February 4, 2017
  61. Algebra2

    is y=1/4x^0.5 a power function. Explain why or why not.

    asked on November 15, 2016
  62. Algebra2

    What transformations change the graph of (f)x to the graph of g(x)? f(x) = -7x² ; g(x) = -35x²+5

    asked on August 29, 2016
  63. physics

    A seagull flies at a velocity of 10.00 m/s straight into the wind. (a) If it takes the bird 18.0 min to travel 6.00 km relative to the earth, what is the velocity of the wind?

    asked on February 11, 2014
  64. Algebra

    Write the decimal .041 as a percent.

    asked on November 8, 2013
  65. math

    If Ryan has $⁢1127 left after spending 1/5 of his monthly salary for rent and 1/7 of his monthly salary for his utility bill, what was his monthly salary?

    asked on June 27, 2017
  66. Algebra2

    What is the 50th term of the sequence that begins -2,4,10,16? My answer is 292

    asked on May 18, 2017
  67. Geometry

    what type of symmetry does the ying yang symbol have? I don't think it has symmetry

    asked on November 5, 2015
  68. Physics

    A heat engine is 20% efficient. If it loses 800 J to the cooling system and exhaust during each cycle, the work done by the engine is: 200 J 1000 J 800 J 20 J

    asked on May 8, 2015
  69. Math

    Piece of paper is 0.0075 inch thick. How many sheets of paper will be in a stack that is 2.25 inches high?

    asked on January 20, 2015
  70. Chemsitry

    How many grams of ice at -24.3∘C can be completely converted to liquid at 23.9∘C if the available heat for this process is 4.82×103kJ ? For ice, use a specific heat of 2.01J/(g⋅∘C) and ΔHfus=6.01kJ/mol.

    asked on October 14, 2014
  71. Maths

    Help with the prediction of the next lotto draw.past results are 5 52 14 27 22. 79 64 62 89 8. 75 61 74 22 46. 86 10 72 61 21. 51 13 27 54 74.thanks ps its a 5/90 lotto

    asked on April 12, 2011
  72. English

    "Our two souls, therefore, which are one/ though I must go, endure not yet/A breach, but an expansion, Like gold to airy thinness beat." Donne is using irony to trivialize the love between him and his wife. Donne is using conceit to describe the love

    asked on October 28, 2017
  73. english

    . Identify the sentence that is correctly punctuated. a. Word Processing and Excel: those are the technology job requirements. b. Word Processing, PowerPoint, and Excel, those are the technology job requirements. c. Word Processing and Excel; those are the

    asked on October 12, 2017
  74. Algebra2

    solve the equation cos theta - tan theta * cos theta = 0 for 0< theta < 2 pi My answer is pi/4,5pi/4

    asked on May 3, 2017
  75. Algebra2

    A wave is modeled with the function y = 1/2 sin 3Θ, where Θ is in radius. Describe the graph of this function, including its period, amplitude, and points of intersection with the x-axis. My answers are Amplitude = 1/2 Period = 2pi/3 Intersection= (0,0),

    asked on May 1, 2017
  76. Algebra2

    3tan 1/3 theta=8 in the interval from 0 to 2pi. Solve the equation.

    asked on May 1, 2017
  77. Geometry

    Complete the 2 column proof. Given m

    asked on December 9, 2015
  78. Math

    What is the value of c so that y=x^2+15x+c is a perfect square trinomial?

    asked on March 27, 2015
  79. Algebra 1

    Use the graph of f(x) to find the solutions to the equation f(x)=0 a-2 -10 & 2 b_ 2 10 & -2 c- 1 10 d- no solutions

    asked on March 27, 2015
  80. Algebra 1

    Suppose y varies directly with x and y = 24 when x =8. What is the value of y when x = 10?

    asked on December 3, 2014
  81. Physics

    A 0.60-kg basketball is dropped out of the window that is 6.1 m above the ground. The ball is caught by a person whose hands are 1.2 m above the ground. (a) How much work is done on the ball by its weight? (b) What is the gravitational potential energy of

    asked on October 2, 2014
  82. trig

    can you help me find cos 2x if sin x = -12/13 (x in 3rd quadrant)

    asked on July 14, 2010
  83. trig

    Rewrite cos4x as an equivalent expression that does not contain powers of trigonometric functions greater than 1.

    asked on December 16, 2009
  84. algebra

    The function f(t)=3e^t represents the population of a strand of bacteria, where t is time in hours. What is the population after 30 minutes?

    asked on June 12, 2020
  85. Geometry

    Assume the following is a true statement. If it is raining, I will carry an umbrella. Which form of the original statement must also be true? a- converse b-- inverse c- contrapositive d- biconditional My answer is c contrapositive

    asked on January 7, 2016
  86. Sociology

    television advertisements typically portray the elderly as? a- wise and knowing b- dignified and nurturing c- respectable and accomplished d- feeble and foolish my answer is b

    asked on September 21, 2015
  87. Geometry

    A pilot sees a guy at an angle of depression of 50 degrees. If the pilot is 200 degrees from the guy, how high is the pilot? Would it be sin(50) x 200?

    asked on April 3, 2015
  88. Physics

    The human ear can detect sounds with frequencies between 20 Hz and 20kHz. Find the largest and smallest wavelengths the ear can detect, assuming that the sound travels through air with a speed of 343 m/s at 20°C. smallest ___m largest____m

    asked on April 16, 2012
  89. Physics

    a hand exerts a constant horizontal force on a block that is free to slide on a frictionles surface. the block starts from rest at point A and by the time it has traveled a distance d to point B it is traveling with speed Vb. WHen the block has traveled

    asked on November 5, 2008
  90. physics

    In searching the bottom of a pool at night, a watchman shines a narrow beam of light from his flashlight, 1.3 m above the water level, onto the surface of the water at a point 2.7m from the edge of the pool. Where does the spot of light hit the bottom of

    asked on September 7, 2008
  91. math

    M is an odd integer. For each of the following numbers, check if the number is odd. 2m- 1 2m +1 m^2 - m m^2 +m+1

    asked on July 1, 2019
  92. English

    Which sentence combines these two sentences and includes a relative clause? The twins pretended to be each other. The switch was a huge mistake. Choices The twins pretended to be each other, which was a huge mistake. The twins pretended to be each other, a

    asked on February 24, 2019
  93. Advanced Algebra

    Juan has an annuity that pays him $9400 at the beginning of each year. Assume the economy will grow at a rate of 3.4% annually. What is the value of the annuity if he received it now instead of over a period of 10 years?

    asked on March 4, 2018
  94. Science

    1. __________ is an environmental group that works to create awareness of pollution. A. The IRA B. Greenpeace C. Congress D. The FDA My answer is D

    asked on February 6, 2018
  95. English

    Which of these excerpts from Ben Jonson's "Song: To Celia" compares love to intoxication? A. "But thou thereon didst only breathe/And sent'st it back to me." B. "... As giving it a hope, that there/It could not withered be." C. "The thirst that from a soul

    asked on October 28, 2017
  96. Science

    Check my answers, please. 1. A prion is an infectious, self-reproducing protein structure. (1 point) True X False 2. As one organism eats another, toxins can be spread throughout the food chain. True False X 3. The problem with DDT in the environment is

    asked on October 10, 2017
  97. Economics

    How do falling prices affect supply? I'm having a hard time between either the supply curve moves to the left and the quantity demanded rises. I think the answer is that the quantity demanded rises.

    asked on August 17, 2017
  98. Algebra2

    How far apart are the foci of an ellipse with a major axis of 34 feet and a minor axis of 16 feet? a-15 b-12 c-9 d-30 my answer is 9

    asked on March 31, 2017
  99. Algebra 1

    What are the solutions to the system? y=x^2+5x-9 y+2x+1

    asked on May 25, 2015
  100. Algebra 1

    Since opening night, attendance at Play A has increased steadily, while Play B first rose then fell. Equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. On what day(s) was the

    asked on May 25, 2015


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