Newest questions and responses by anon
  1. English

    tell how using a reading role helped you understand the book. The reading roles are described in the link of unit 4, lesson 1, slide 4. support your response with at least two pieces of evidence from the novel. This is for Johnny Tremain.

    asked on December 7, 2018
  2. Social Studies

    What did the expression “Square Deal” refer to as used by Theodore Roosevelt in regard to the federal government?

    asked on December 7, 2018
  3. Social Studies

    What is the main job of the U.S executive branch? A.) To enforce laws B.) To interpret laws C.) To repeal laws** D.) To make laws Can someone check this for me?

    asked on November 29, 2018
  4. math

    What are the two missing numbers in the sequence 4,3,3,2,3,3,7,7,2,_,_?

    asked on November 28, 2018
  5. pre algebra

    what is the solution to -√90 to the nearest integer? A: 3 B: -5 C: 7 D: -9 i did the rest of the problems (5) but idk how to do this one at all.. pls help

    asked on November 27, 2018
  6. math

    This is a discussion on Connections Academy Algebra Readiness; Lesson 10 Unit 3. Student A believes the square root of 2 over 8 is a rational number because it can be written as a fraction. Student B believes that the square root of 2 over 8 is an

    asked on November 26, 2018
  7. Algebra

    Given that S=7a+b+7c and also S=6a+8b+6c, where 51

    asked on November 14, 2018
  8. Algebra

    Given that a+1/(b+(2/c))=17/5, where a is the integer part of the mixed number, and c is the numerator of the fraction part of the mixed number when the mixed number is written in least terms, find the product abc.

    asked on November 14, 2018
  9. Algebra

    Given that a+b=c, a+c=d and b=c+d, where d is a positive integer, what is the greatest value of a?

    asked on November 14, 2018
  10. Algebra

    2: Y^5 x y^14= A: 2y^19 B: y^60 C: y^19 D: 2y^60 3: w^12 ÷ w^18 A: w^30 B: w^-30 C: w^6 D: w^-6 4: Using the numbers 3, 2, and 4, which of these problems would have a solution of 4? A: 4 x 2^3 ÷ 2^3 B: 2 x 2^3 ÷ 2^4 C: 3 x 2^3 ÷ 2^4 D: 3 x 2^4 ÷ 2^4

    asked on November 14, 2018
  11. Algebra 1

    Your school wants to take out an ad in the paper congratulating the basketball team on a successful season, as shown to the right. The area of the photo will be half the area of the entire ad. What is the value of x? Round answer to nearest hundredth. Use

    asked on November 5, 2018
  12. Math

    There were 1090 people on a beach. If 10% of the people left. How many remained? thank you.

    asked on October 31, 2018
  13. Math plz help

    2. The function A(n) = 5 + (n-1) (4) represents an arithmetic sequence. Which of the following formulas represents the same sequence? Select all that apply

    asked on October 24, 2018
  14. Spanish

    What does it mean to conjugate a verb? This is for Spanish. Also, I have looked up what it means, and I must’ve missed this in the lesson too. What does this mean to do? I am just not understanding. Thank you!!

    asked on October 18, 2018
  15. math

    For some surfaces, the normal lines at any point pass through the same geometric object. What is the common geometric object for a sphere? What is the common geometric object for a right circular cylinder? Explain.

    asked on October 16, 2018
  16. Physics

    A box which has a mass of 90.8kg is at rest on a rough horizontal floor, A man pushes on the box with a horizontal force of 376N. As soon as the box begins to move a friction force of 214N acts on the box from the floor. a. What is the acceleration of the

    asked on October 16, 2018
  17. Math

    Hi. I am stuck on this question. List the subsets of the set: {5, 10, 15} What am I supposed to be doing? I just do not understand whatsoever. My book also was not much help, it just said the definition and not how to solve it.

    asked on October 16, 2018
  18. Math

    Solve the inequality -5x

    asked on October 12, 2018
  19. Math

    Hi. I always get this confused so I’d like to confirm I am right. L ≤ $500 “≤” this means less than or equal to. So, does this mean that L is less than or equal to $500? I want to make sure I have the symbol facing the correct way. Thanks.

    asked on October 12, 2018
  20. history

    1) what significant effect did The Treaty of Paris, signed after the French and Indian War, have on the French (1 point) a) France had to withdraw its empire to Central and South America b) France had to allow the British to claim and settle the Ohio

    asked on October 12, 2018
  21. Math

    1. Determine the scalar equation of the plane with vector equation Vector r= (3,-1,4) +s(2,-1,5) + t(-3,2,-2). 2. Determine the value of k so that the line with parametric equations x = 2 + 3t, y = -2 + 5t, z = kt is parallel to the plane with equation 4x

    asked on October 11, 2018
  22. Math

    the scalar equation of the line through (-1,5) if (4,-1) is a normal vector to the line.

    asked on October 10, 2018
  23. math

    The number,n (in hundreds), of mosquitoes in a camping area after t weeks can be modelled by the equation n(t)=2t^4-5t^3-16t^2+45t According to this model, when will the population of mosquitoes be greater than 1800?

    asked on October 10, 2018
  24. math

    Determine vector, parametric and, if possible, symmetric equations for the line through Q(2, -1, 3) and the mid-point of the line segment from L(3, -2, 5) to M(1, 4, -7).

    asked on October 9, 2018
  25. Math

    Determine vector, parametric and, if possible, symmetric equations for the line through Q(2, -1, 3) and the mid-point of the line segment from L(3, -2, 5) to M(1, 4, -7).

    asked on October 9, 2018
  26. Math

    SHOW THAT LINES (x-5)/-2 = (y+3)/4 = (z-1)/6 = t AND (x+2)/4 = (y-1)/-8 = (z+6)/-12 = t ARE PARALLEL.

    asked on October 8, 2018
  27. science

    which of these describes a chemical reaction? a. Atoms are created by elements b. Atoms combine to form elements c. Atoms of two or more elements repel each other d. Atoms of two or more elements bond to each other** I’m not sure but i think it’s D

    asked on October 4, 2018
  28. Calculus and Vectors

    If ∣Vector x∣=8, ∣Vector y∣=13 and ∣Vector x + Vector y∣=15, determine ∣Vector x - Vector y∣. You may want to draw a diagram to help with your solution.

    asked on October 3, 2018
  29. Calculus and Vectors

    There is a wind blowing from N80oE at 45 km/h. The airspeed of the plane will be 550 km/h. (a) What direction should the pilot steer the plane (to whole degree)? Include a diagram as part of your solution. (b) What will the actual ground speed be of the

    asked on October 3, 2018
  30. Calculus and Vectors

    (6) Consider the vectors Vector a=(1,2,3) and Vector b=(-3,0,2). (a) Determine the projection of Vector a onto Vector b. (b) A unit vector is a vector of length 1. Determine a simplified unit vector in the same direction as Vector a .

    asked on October 2, 2018
  31. math

    550^2 = 45^2 + x^2 - 2*45x*cos100° show step by step on how to find x

    asked on October 2, 2018
  32. Calculus and Vectors gr12

    Using a specific example, prove the vector property: For vectors u⃗ and v⃗ and scalar p > 1, show p(u⃗ +v⃗ )=pu⃗ +pv⃗ . It works for all p-values, but I am asking you to narrow your examples to a semi-specific example. (the box next to the

    asked on October 2, 2018
  33. Finite Math

    Solve using Gauss Jordan method - Write in terms of (x, y, z) = ( ) 3y + 2z = 1 2x − y − 3z = 3 2x + 2y − z = 4

    asked on September 17, 2018
  34. Calculus

    Michael Perez deposited a total of $4000 with two savings institutions. Bank A pays interest at the rate of 5%/year, whereas Bank B pays interest at the rate of 8%/year. If Michael earned a total of $308 in interest during a single year, how much did he

    asked on September 12, 2018
  35. Social studies

    Explain how the Civic virtues of the ancient Romans inspired the founding fathers vision of how citizens should conduct themselves in the United States. Can anyone help me with this in anyway? Like maybe a link or something Asap please

    asked on September 4, 2018
  36. chemistry

    If you have 500 ml of .15M Formic Acid, what is the pH of this solution? What is the pKa? How many grams of Sodium Formate would you have to add to raise the pH to 3.85? How many grams of HCl would you have to add to lower the new pH by .2 ?

    asked on August 2, 2018
  37. history

    What policies led to the Boxer Rebellion?

    asked on July 16, 2018
  38. physics

    A helicopter is hovering above a road at an altitude of 24 m. At a certain time, the distance between the helicopter and a car on the road is 45.0 m. Calculate the angle of elevation of the helicopter from the car. (32.2o )

    asked on July 16, 2018
  39. Climate Change

    Water is a greater absorber of IR than CO2, it also makes up 4% of the air by volume. If 0.016% change in CO2 over 100 years can increase the temperature by 1 deg C, what is the effect of the 4% water vapour on the temperature? Also do you think that

    asked on July 15, 2018
  40. physics

    Orson rides his power boat up and down a canal. The water in the canal flows at 10 km/hr. Orson takes 5 hours longer to travel 360 km against the current than he does to travel 360 km with the current. What is the speed of Orson's boat in still water?

    asked on July 13, 2018
  41. physics

    The height of a ball thrown up with a velocity of 39.2 m/s is given as a function of time(measured in seconds) by the equation H(t) = 39.2t -4.9t2 + 58.8. How much time will the ball take to fall to the ground? (9.29 s) pls explain how to solve the answer

    asked on July 13, 2018
  42. algebra

    Check my answer? What is the order of the numbers from least to greatest? A= 6.2x10^5, B= 1.1x10^-3, C= 4.3x10^-3, D= 5.2x10^-5 I think it's D,B,C,A (5.2x10^-5, 1.1x10^-3, 4.3x10^-3, 6.2x10^5)

    asked on June 11, 2018
  43. Trigonometry

    What is the value of tan (Arc cos 15 seventeenths)? 1. 8/15 2. 8/17 3. 15/8 4. 17/8 Can you guys explain what the Arc means?

    asked on June 10, 2018
  44. english

    Which of the following text examples supports the conclusion that Father will never stop building things? Choose all that apply. A) he builds Dragonwings despite the financial hardship it causes. B) after setting a kite free, he offers to build separate

    asked on June 8, 2018
  45. Charges

    Three point charges are placed along a straight line with successive charges being 3.0 m apart. The central one has a charge of −3.0 μC, whilst the outer two have charges of +3.0 μC each. If the charges are separated by a vacuum, calculate the

    asked on May 26, 2018
  46. Science

    Can I use a=qE/m to work this out? Since f=ma and f=qE

    asked on May 25, 2018
  47. Electron acceleration

    An electron has an acceleration of magnitude 2.0 × 10^13 m s−2 in a uniform electric field. What is the magnitude of the electric field? Can I use f=ma?

    asked on May 25, 2018
  48. Orbital period

    A planet orbiting a certain star is observed to have an orbital period of 65 days with an orbit whose semi-major axis is 3.8 × 107 km. A second planet orbiting the same star has an orbital period of 450 d. What is the semi-major axis of its orbit?

    asked on May 25, 2018
  49. Angular acceleration

    A racing car accelerates from 50 km per hour to 200 km per hour in 3.0 seconds along a straight track, and the acceleration is constant during this period. If the axles are 40 cm above the road, what is the magnitude of the angular acceleration of the

    asked on May 24, 2018
  50. Chemistry

    The radioisotope radon-222 has a half-life of 3.8 days. How much of a 65-g sample of radon-222 would be left after approximately 15 days?

    asked on May 23, 2018
  51. math

    suppose u = (1, 2, 3, 4, 5, 6, 7, 8) is the universal set and p = (1, 2, 3, 4). what is p? a.) (5, 6, 7, 8)*** b.) (1, 2, 3, 4, 5, 6, 7, 8) c.) (1, 2, 3, 4) d.) cannot be determined i think it's a.) (5, 6, 7, 8)- am i right?

    asked on May 22, 2018
  52. Math

    While attending a film festival you decide that there are 12 movies that you are interested in seeing. However, you only have time to see 7 movies. In how many different ways can you watch 8 of the 12 movies? A. 19,958,400 B. 12 C. 9,979,200*** D.

    asked on May 21, 2018
  53. Physics

    A car is speeding along the motorway at 40 m s when the driver observes an accident ahead. He slams on the brakes, the wheels lock immediately, and the car skids to a halt. You may assume that the car travels in a straight line whilst it is skidding and

    asked on May 20, 2018
  54. math

    The ___ of a function consists of the set of all output values.

    asked on May 19, 2018
  55. Physics

    A cricket jumps vertically upwards, and remains in the air for 1.6 s. At what speed did it leave the ground?

    asked on May 18, 2018
  56. math

    1. What are the minimum, first quartile, median, third quartile, and maximum of the data set? 18, 20, 11, 10, 8, 6, 12, 4 A: Minimum: 4; First Quartile: 7; Median: 10.5; Third Quartile: 17.5; Maximum: 20 B: Minimum: 4; First Quartile: 5.5; Median: 12.75;

    asked on May 18, 2018
  57. Algebra

    Patty’s Burgers sells three hamburgers and two milkshakes for three dollars and thirty five cents. One hamburger and one milkshake cost one dollar and thirty cents. Find the cost of a hamburger. I got 89 cents but its not working

    asked on May 18, 2018
  58. Physics

    Copper has a Fermi energy of 7.02 eV. What is its electron number density? ---------------------- Using Ef=h^2/8m(3n/pi)^2/3 I get an answer of 2.246*10^7 but this is incorrect. I know the answer is 1.8*10^29 but am struggling to see where I went wrong.

    asked on May 17, 2018
  59. Physics

    A swimmer launches himself upwards from a springboard 5.0 m above the surface of the water in a swimming pool. His trajectory is (almost) vertical, and from the top of his trajectory he passes the springboard in just half of the time he takes to reach the

    asked on May 16, 2018
  60. Physics

    If enough energy were supplied to a diamond would that allow some of its electrons to transition to a higher energy band and therefore conduct electricity? Just curious.

    asked on May 15, 2018
  61. Physics

    A man stands on the edge of a cliff with hands outstretched horizontally carrying two stones, one in each hand. At time t= 0, he drops the first pebble from rest. After a time of 1.0 s, he releases the second pebble. At what time will the separation

    asked on May 14, 2018
  62. Physics

    A man stands on the edge of a cliff with hands outstretched horizontally carrying identical pebbles, one in each hand. At time t= 0, he drops the first pebble from rest.When this pebble has fallen by 2.0 m, he releases the second pebble. What is the

    asked on May 14, 2018
  63. Physics

    A rocket travels vertically away from the surface of Mars. It is still close to the surface and travelling at a speed of 25 m s when it jettisons an empty fuel tank. The fuel tank initially travels with the velocity of the rocket, but it is attracted to

    asked on May 14, 2018
  64. Chemistry

    CH3OH(aq) + OH-(aq) ⇌ CH3O-(aq) + H2O(l) If methanol has pKa = 18.3, what is pKb for its conjugate base?

    asked on May 10, 2018
  65. English

    Read these lines from T.S. Elliot's "Preludes." "Six o’clock./The burnt-out ends of smoky days./And now a gusty shower wraps/The grimy scraps/Of withered leaves about your feet/And newspapers from vacant lots..." Which of the following is being

    asked on May 9, 2018
  66. Physics

    So a quick question. If im representing a quantum gas with diagrams of the allowed configurations of the gas. When it comes to indistinguishable I have 7 configurations. But if we then compare to a gas made up of distinguishable particles. Would there be

    asked on May 9, 2018
  67. Algebra 1

    Measures of Central Tendency and Dispersion Practice 2. Tell which measure of central tendency best describes the data. Time spent on Internet (min/day) 75 38 43 120 65 48 52 A. Mean B. Median C. Mode Help? I really don't understand this :/

    asked on May 9, 2018
  68. English

    Choose the word or phrase that best defines the italicized word. "An aged man is but a *paltry* thing,/ A tattered coat upon a stick..." a.inadequate b.invisible c.significant d.unwise

    asked on May 8, 2018
  69. English

    Choose the word or phrase that best defines the italicized word. "An aged man is but a *paltry* thing,/ A tattered coat upon a stick..." a.inadequate b.invisible c.significant d.unwise

    asked on May 8, 2018
  70. Chemistry, Periodic Table

    Very briefly explain the main horizontal and vertical features of the Periodic Table in terms of the electronic structure and relevant quantum numbers? -------------- Am I being asked to state for instance in the case of Halogens that as we progress down

    asked on May 8, 2018
  71. Physics

    How would electrical current be affected if the time interval over which a charge passes through an area increases while the amount of charge Remains the Same

    asked on May 8, 2018
  72. Chemistry

    A little confused on this question... I think I would need to take the solute and put it over the solvent, and then use molar mass. Confused on how density plays into this problem. Sucrose is very soluble in water. At 25ºC, 211.4 grams of sucrose will

    asked on May 7, 2018
  73. Chemistry

    Which of the following compounds has the greatest molar solubility? A) AgBr, Ksp= 5.4 x 10^13 B) Ba3(PO4)2, Ksp = 3.0 x 10^-23 C) Al(OH)3, Ksp = 1.9 x 10^-33 D) MgF2, Ksp = 7.4 x 10^-11 E) Pb(OH)2, Ksp = 1.2 x 10^-15 I know the answer for this problem is

    asked on May 6, 2018
  74. Chemistry

    What is the boiling point elevation of a solution of NaNO3 (85.0 g/mol, complete dissociation) made by dissolving 10.0 g of NaNO3 into 200 g of water (Kb = 0.512◦C/m)?

    asked on May 6, 2018
  75. Physics

    Getting my head twisted around by the wording of these two questions, any help would be appreciated. My answers/ideas are below each question. 1) Briefly explain whether there would there be more or fewer configurations available for the gas if the

    asked on May 6, 2018
  76. Physics

    So I have worked out the 'allowed' configurations for four particles which can occupy 5 different energy levels (1, 3, 5, 7, 9) and now I need to work out the average number of particles in a particular energy level (i.e 3). 1) 9,5,1,1 2) 9,3,3,1 3)

    asked on May 6, 2018
  77. Bose gases, quantum physics.

    A hypothetical gas consists of four indistinguishable particles. Each particle may sit in one of five allowed quantum states, with energies ε,3ε,5ε,7ε and 9ε. Assume that the total energy of the gas is fixed at 16ε. (a) If the particles are bosons:

    asked on May 4, 2018
  78. maths

    Sketch the region bounded by the x-axis, the curve y = x2 + x + 1 and the lines x = 2 and x = 5. Write down a definite integral that represents the area of that region Just stuck getting points for the first equation as when I put y=0 I got a complex

    asked on May 3, 2018
  79. Calculus AP

    f is a differentiable function on the interval [0, 1] and g(x) = f(2x). The table below gives values of f ′(x). What is the value of g ′(0.1)? x 0.1 0.2 0.3 0.4 0.5 f ′(x) 1 2 3 –4 5 The answers are: 1 2 4 cannot be determined I got 1 please let me

    asked on May 2, 2018
  80. Biology

    Describe the microbial loop and role of viruses simplified. I just dont understand it if anyone could please help or suggest a website?

    asked on May 2, 2018
  81. Physics

    A concave mirror with a radius of curvature of 1.7 m is illuminated by a candle located on the symmetry axis 3.7 m from the mirror. Where is the image of the candle? Answer in units of m

    asked on May 2, 2018
  82. Physics

    A concave mirror has a radius of curvature of 1.61 m. Calculate the position of the image produced when an object is placed 2.66 m from the mirror. Answer in units of m. Calculate the position of the image when an object is placed 0.492 m from the mirror.

    asked on May 1, 2018
  83. Physics

    Of the following materials, sound waves travel fastest through...? Helium at room temperature Air at room temperature Water at room temperature Steel at room temperature

    asked on May 1, 2018
  84. Physics

    Outline how the Bohr Theory for the hydrogen atom (as represented by the formula in part (b) above) can be modified to explain the characteristic X-ray line spectra emitted by metals. Calculate the wavelength of the Kα line from platinum where Z = 78

    asked on April 30, 2018
  85. Pysics

    Calculate the focal length of a concave spherical mirror that projects an image 12.0 cm in front of the mirror with a magnitude of -0.42

    asked on April 24, 2018
  86. Algebra 1

    9. Find the solutions to the system. y=x^2+5x+6 y=4x+12 A. (2,20) and (-3,0) B. (2,20) and (-3,-18) C. (-2,-20) and (-3,-18) D. no solutions 10. Find the solutions to the system. y=x^2-3x-1 y=8x-1 A. (0,-1) and (11,388) B. (0,-1) and (11,87) C. (-1,0) and

    asked on April 23, 2018
  87. Quantum Physics

    A particle of mass 2.00×10^−10 kg is confined in a hollow cubical three-dimensional box, each edge of which has a length, 2.00×10^−10 m, and for which the potential energy function is zero inside, and infinite outside, the box. The total energy of

    asked on April 22, 2018
  88. Physics

    (a) Photoelectrons with a maximum kinetic energy of 7.6eV are emitted from a metal when it is illuminated by ultraviolet radiation with a wavelength of 1.3×10^2 nm. (i) What is the energy of the incident photons in electronvolts? (ii) What is the

    asked on April 21, 2018
  89. Algerbra 1 B

    Simplify the radical expression. Show all your steps. \sqrt{363} -3 \sqrt{27}

    asked on April 12, 2018
  90. Math

    PLEASE HELP PLEASE Does the series diverge or converge? How do you know? 3+6+12+24+...

    asked on April 1, 2018
  91. Math-Algebra II to be exact

    Come up with a new linear function that has a slope that falls in the range −1< m

    asked on March 30, 2018
  92. Chemistry

    A solution contains 1.4 * 10^−5 mol of KBr and 0.14 mol of KCl per liter. AgNO3 is gradually added to this solution. Which forms first, solid AgBr or solid AgCl? Or do they co-precipitate?

    asked on March 29, 2018
  93. Social Studies

    McCarthyism was able to become strong because of the increasing fear of Communism in China and Eastern Europe that came to the United States. True** False The term "McCarthyism" comes from Senator Jake McCarthy, who spearheaded the drive to defeat

    asked on March 27, 2018
  94. Math

    Write an equation for a rational function whose graph has all of the indicated features. x - intercept of -4 y - intercept of -2 vertical asymptote with equation x = 2 horizontal asymptote with equation y = 1

    asked on March 21, 2018
  95. Physics

    Optics/Lens problem. Is the image real or virtual? A converging lens of focal length f1 = +22 .5cm is placed at a distance d = 60 .0cmtotheleft of a diverging lens of focal length f2 = −30.0cm. An object is placed on the common optical axis of the two

    asked on March 21, 2018
  96. Physics

    an 11.5 kg object with a temperature of 25.0 degrees celsius is attached to a pulley mechanism. it is allowed to fall until is slows to rest after falling 1.6 m. at the end of the fall , the object has a temperature of 28.9 degrees celsius. what is the

    asked on March 21, 2018
  97. Physics

    A sample of 8.02×10^−1 moles of nitrogen gas (γ =1 .40) occupies a volume of 2.00×10^−2 m^3 at a pressure of 1.00×10^5 Pa and temperature of 300K. The sample is isothermally compressed to exactly half its original volume. Nitrogen behaves as an

    asked on March 20, 2018
  98. Physics

    A sealed container of volume V =0 .10m^3 holds a sample of N =3 .0×10^24 atoms of helium gas in equilibrium. The distribution of speeds of the helium atoms shows a peak at 1.1×10^3 ms^−1. (i) Calculate the temperature and pressure of the helium gas.

    asked on March 20, 2018
  99. math

    The square root of 76 is between what two numbers?

    asked on March 6, 2018
  100. math

    The square root of 76 is between what two numbers?

    asked on March 5, 2018


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