A

Newest questions and responses by A
  1. math

    what is b^2

    asked on March 13, 2019
  2. math

    A diver is on the diving platform at Wonder Mountain in Canada’s Wonderland. She jumps up and dives into the water at the base of the mountain. The equation is d = -3t^2 + 6t + 45 At what time is she 36 m above the water? When is she less than 21 m from

    asked on March 8, 2019
  3. math

    d = 0.08t^2 - 1.6t + 9 A student stands facing a motion detector. He quickly walks toward the detector, slows down, stops and then slowly walks away from the detector. He speeds up as he gets farther away from the detector. When is the student closest to

    asked on March 7, 2019
  4. math

    d = 0.08t^2 - 1.6t + 9 A student stands facing a motion detector. He quickly walks toward the detector, slows down, stops and then slowly walks away from the detector. He speeds up as he gets farther away from the detector. How far is the student from the

    asked on March 7, 2019
  5. math

    d = 0.08t^2 - 1.6t + 9 A student stands facing a motion detector. He quickly walks toward the detector, slows down, stops and then slowly walks away from the detector. He speeds up as he gets farther away from the detector. How far is the student from the

    asked on March 7, 2019
  6. math

    D = 0.08t^2 - 1.6t + 9 Why does this equation above fits this model: A student stands facing a motion detector. He quickly walks toward the detector, slows down, stops and then slowly walks away from the detector. He speeds up as he gets farther away from

    asked on March 7, 2019
  7. math

    An object is launched at 19.6 m/s from a 58.8 m tall platform. The equation for the object's height above the ground (y) at time tseconds is y = –4.9t2 + 19.6t + 58.8 Use the quadratic formula to find the roots of this equation. What do these numbers

    asked on March 6, 2019
  8. math

    For what value of k does the equation x2 + kx + 9have: Two distinct real roots One real root No real root

    asked on March 6, 2019
  9. physics

    A uniform meter stick ( 100 cm long) that weighs 0.50 N has a 2 N weight located at the 30 cm mark (from the left) and a 5 N weight at the 85 cm mark (from the left). Where along the meter stick is the center of gravity of this system?

    asked on March 6, 2019
  10. history

    How is the concept of patriotism used to persuade people to donate to charities for soldiers' families?

    asked on March 5, 2019
  11. math

    Is my answer correct? Write this quadratic function in the vertex form y = 4(x+5)(x-2) = 4(x² + 3x - 10) = 4(x² + 3x + 9/4 - 10 - 9/4) = 4(x² + 3x + 9/4) - 49 = 4(x+3/2)² - 49 Ans: y = 4(x+3/2)² - 49 Vertex = (-3/2, -49)

    asked on March 4, 2019
  12. math

    Is my answer correct? Write this quadratic function in the vertex form y = 4(x+5)(x-2) = 4(x² + 3x - 10) = 4(x² + 3x + 9/4 - 10 - 9/4) = 4(x² + 3x + 9/4) - 49 = 4(x+3/2)² - 49 Ans: y = 4(x+3/2)² - 49 Vertex = (-3/2, -49)

    asked on March 4, 2019
  13. math

    Find the domain and range of the function y= -3(x-1/3)^2+4/3

    asked on March 4, 2019
  14. Math

    Determine the characteristics of the quadratic function: y = 4(x + 5)(x – 2) Organize these in a chart form, with rows for "Domain", "Range", "Vertex" and "Opens: (Up/Down)"

    asked on March 3, 2019
  15. math

    Write this equation in the vertex form: y= -3x^+2x+1

    asked on March 2, 2019
  16. Chemistry

    Does anyone know how to get the conjugate base of this compound? (Ni(H2O)6)^3+ (aq)

    asked on March 2, 2019
  17. politicss

    why is a new democratic party important?

    asked on March 1, 2019
  18. Politics

    What did Tommy Douglas do that made him such a great Canadian? I need 2 others reason I already have that he Brought in universal health care

    asked on March 1, 2019
  19. politics

    Why is free health care important in a democratic society?

    asked on February 28, 2019
  20. math

    The b2 − 4ac part of the formula is called the discriminant. What happens if the discriminant is greater than 0? equal to 0? less than 0?

    asked on February 27, 2019
  21. history

    In what ways could one contribute to the war effort from Canada?

    asked on February 27, 2019
  22. civics

    identify the three qualities of ideal citizenship that Lester Bowels Pearson has demonstrated

    asked on February 27, 2019
  23. math

    The degree of g(x)= 2x^2+x-1 is A. 3 B. 1 C. -1 D. 2

    asked on February 26, 2019
  24. civics

    Why is it important to have many different ways of resolving conflicts in our society.?

    asked on February 26, 2019
  25. history

    why does society need war heroes?

    asked on February 25, 2019
  26. Math

    Write the equation in vertex form: y= -3x^2+12x+15

    asked on February 25, 2019
  27. math

    Is my answer correct? 6y^2-96/2y^2+18y+40 (6y^2-96)/(2y^2+18y+40) = 6(y² - 16)/[2(y² + 9y + 20)] = (6/2)(y-4)(y+4)/[(y+4)(y+5)] = 3(y-4)/(y+5) : y ≠ -5, y ≠ -4

    asked on February 22, 2019
  28. Math

    Simplify, stating any restrictions on the variables: a. 18a^6bc^7d^3/ 12a^2b^4c^7d b.x^2+5x+6/x^2-2x-15 c. 6y^2-96/2y^2+18y+40

    asked on February 22, 2019
  29. math

    Describe the shapes of each of the following types of function. For each one, state whether or not there are restrictions on the domain or range, and explain why. Linear Quadratic Square Root

    asked on February 21, 2019
  30. Civics

    Consider the issue of Wind Turbines and find two different viewpoints on the controversy; how do they differ? Why do you think they differ? What beliefs and values do they have that might influence their perspective on the issue?

    asked on February 19, 2019
  31. English

    why is simile effective in describing a sound

    asked on January 25, 2019
  32. Social Studies

    Compare and contrast the treatment of different religions by rulers of the Arab empire.

    asked on January 24, 2019
  33. Social Studies

    what does it mean to have good commnication in a marriage?

    asked on January 22, 2019
  34. history

    Several US leaders wanted no part in imperialistic practices. Why did these officials think imperialistic policies were such a bad idea?

    asked on January 17, 2019
  35. Engineering

    6. classical mechanics depends heavily on A. quantum leaps B. ancient theories C. general observations * D. mathematical solutions 7. a virus is a parasite because A. it hunts its prey * B. it only impacts plants C. it lives of other organisms D. it is the

    asked on January 17, 2019
  36. social

    What you would do to ensure a strong relationship in your own life?

    asked on January 15, 2019
  37. English

    If you guys were trying to survive the Titanic How do you think you would feel? How would you react? What would you do to secure your survival?

    asked on January 14, 2019
  38. math

    How many solutions will a system of linear equations have if the lines have the same slopes, but different y-intercepts?

    asked on January 8, 2019
  39. English

    how does global warming connect to overpopulation?

    asked on January 4, 2019
  40. Math

    -4/10x -9 < 9/10 = x < 24 3/4 Did I do this right? was solving for the inequality and the -4/10x is together.

    asked on November 1, 2018
  41. Math

    -2/5x-9

    asked on November 1, 2018
  42. Chemistry

    11 mL of 0.0100 M HCl are added to 25 mL of 0.0100 M acetic acid. What is the pH of the resulting solution?

    asked on October 13, 2018
  43. Math

    -9=5/17n A. n=153/5 B. n=5/153 C. n=-17/45 D. n=-45/17

    asked on September 29, 2018
  44. Math

    3(p+q)=p solve for p

    asked on September 29, 2018
  45. Math

    What is the simplified version of this expression 28st/-4t the / meaning its a fraction

    asked on September 21, 2018
  46. Homework help

    Is there any way to post questions with pictures?

    asked on September 12, 2018
  47. History

    What impact did imperial Spain have on the Americas? Spanish culture came to dominate and replace native cultures. Local leaders were replaced by Spanish parliamentary assemblies. Financing from Spain started the industrialization of the Americas.

    asked on August 3, 2018
  48. Calculus2

    Find the area of the region enclosed by the inner loop of the curve. r = 4 + 8 sin(θ)

    asked on August 3, 2018
  49. calculus2

    A manufacturer of corrugated metal roofing wants to produce panels that are u = 48 in. wide and 2 in. thick by processing flat sheets of metal as shown in the figure. The profile of the roofing takes the shape of a sine wave with equation y = sin(πx/12).

    asked on July 21, 2018
  50. calculus2

    How do I evaluate this integral? integral from 0 to 24 of the √(1+[(π/3)*cos((πx/3)]^2)

    asked on July 21, 2018
  51. calculus2

    Evaluate the integral. ∫arctan(√x) dx

    asked on July 9, 2018
  52. calculus2

    Evaluate the integral. ∫[0,1](12/4x^2+5x+1)dx

    asked on July 8, 2018
  53. calculus2

    Evaluate the integral using the indicated trigonometric substitution. (Use C for the constant of integration.) ∫√((x^2-4)/x)dx x=2sec(t)

    asked on July 6, 2018
  54. calculus2

    A tank is full of water. Find the work required to pump the water out of the spout. (Use 9.8 m/s^2 for g. Use 1000 kg/m^3 as the density of water. Assume r = 9 m and h = 3 m.) The tank is a spherical shape with r as the radius(9m). On top of the tank is a

    asked on June 28, 2018
  55. calculus2

    Use cylindrical shells to find the volume V of the solid. A right circular cone with height 9h and base radius 5r. The answer is 75πhr^2 but my answer is 39πhr^2. How???

    asked on June 25, 2018
  56. calculus2

    Use cylindrical shells to find the volume V of the solid. A sphere of radius r

    asked on June 24, 2018
  57. calculus2

    Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.y = x − 1, y = 0, x = 8; about the x-axis.

    asked on June 18, 2018
  58. calculus2

    Find its area. y = sec^2(x), y = 8 cos(x), −π/3 ≤ x ≤ π/3

    asked on June 15, 2018
  59. chem

    Why does temp of water used for transferring and washing the precipitate matter? 1. to maximize evaporation 2. to minimize evaporation 3. to maximize the amount of product that dissolves in water

    asked on June 5, 2018
  60. Language Arts *Last One I Promise*

    1. If you were writing a brief profile of Rosa Parks explaining why you admire her, which of the following sentences would make the best thesis statement? In 1955, Rosa Parks refused to give up her seat on a bus. Rosa Parks's refusal to give up her seat

    asked on May 25, 2018
  61. chem TITRATION

    1. If a student fails to remove a large air bubble in the buret before beginning the titration, what will be the effect on the volume of titrant required to reach the titration endpoint? A. The student will record a volume that is SMALLER than it should be

    asked on May 25, 2018
  62. Language Arts

    *First off sorry there are so many, I just wanted to check because it's always better safe than sorry* Identify the correctly punctuated sentence in each group. A.) Do you know where Bailey shoes are? B.) Do you know where Bailey's shoes are?* C.) Do you

    asked on May 25, 2018
  63. Language Arts

    Identify the incorrectly punctuated sentence The child wore a pink cotton shirt. We had a tiring, hot day outdoors. She cooked a delicious healthy meal.**** (I think it's missing a comma) The game was a suspenseful, exciting experience.

    asked on May 25, 2018
  64. LA

    . Which of the following quotes from "The Morning of June 28, 1948" Best describes the aversion that the public felt toward Shirley Jackson's short story "The Lottery?" A) “As a matter of fact, when I read it over later I decided that except for one two

    asked on May 25, 2018
  65. Language Arts

    n Edgar Allan Poe's "The Cask of Amontillado," the literary device of foreshadowing is used to create mystery when Montressor tells Fortunato a. "You are a man to be missed." b. "A draught of this Medoc will defend us from the damps." c. "You were not to

    asked on May 25, 2018
  66. conversions math

    convert 70.5 in^3 to cubic feet? how would you convert this

    asked on May 22, 2018
  67. chemistry

    If you have 1.00 M sodium chloride solution, and you have 300. mL of it, how many grams of sodium chloride are there?

    asked on May 15, 2018
  68. Social Studies

    How did the end of world war 2 impact Minnesota's economy? How did the GI Bill help encourage economic growth in Minnesota and the rest pf the naiton? How are the growth of highways and suburbs related?

    asked on April 30, 2018
  69. Chem

    A dilute aqueous solution of Na2SO4 is electrolyzed between Pt electrodes for 3.70 h with a current of 2.77 A . Part A What volume of gas, saturated with water vapor at 25∘C and at a total pressure of 742 mmHg , would be collected at the anode? The vapor

    asked on March 31, 2018
  70. Chem

    At 298 K, 1.20 mol BrCl(g) is introduced into a 10.0 −L vessel, and equilibrium is established in the reaction. BrCl(g)⇌1/2Br2(g)+1/2Cl2(g) A) Calculate the amount of BrCl(g) present when equilibrium is established. [Hint: Use ΔG0[Br2(g)]=3.11kJ/mol,

    asked on March 31, 2018
  71. chemistry

    At 298 K, 1.20 mol BrCl(g) is introduced into a 10.0 −L vessel, and equilibrium is established in the reaction. BrCl(g)⇌1/2Br2(g)+1/2Cl2(g) A) Calculate the amount of BrCl(g) present when equilibrium is established. [Hint: Use ΔG0[Br2(g)]=3.11kJ/mol,

    asked on March 31, 2018
  72. Physics

    The binding energy of a nucleus is the amount of energy needed to A.Remove a proton from the nucleus. B.Remove a neutron from the nucleus. C.Disassemble the nucleus. D.Fragment the nucleus. E.Fuse or join two of the nuclei together. Please help!

    asked on March 29, 2018
  73. physics

    A 68 kg stunt- woman falls off a bridge and travels 32.0 before colliding with a pile of mattresses. The mattresses are compressed 2.00 m before she is brought to rest. Calculate the magnitude of the average force exerted by the mattresses on the

    asked on March 26, 2018
  74. Writing

    Essay question: How does playing violent video games influence violence in those who play them? Playing violent video games influence violence in those who play them? *Those who play them: I clarified my audience to specifically adolescents because young

    asked on March 26, 2018
  75. Physics

    On a cold winter day, the outside temperature is –5.0 °C while the interior of a well-insulated garage is maintained at 20.0 °C by an electric heater. Assume the walls have a total area of 75 m2, a thickness of 0.15 m, and a thermal conductivity of

    asked on March 18, 2018
  76. Chemistry

    What is the final temperature when 2.50 x 10^5 J are added to 0.950 kg of ice at 0.0 degrees C? The specific heat capacity of water is 4186 J/(kg·degrees C) and the latent heat of fusion for ice is 3.35×10^3 J/kg.

    asked on March 15, 2018
  77. physics

    If a very large iceberg were to float to warmer waters and melt, what, in principle, would happen to the overall sea-level? A. sea-level would rise very slightly. B. sea-level would fall very slightly. C. sea-level would stay the same. *I would say A

    asked on March 7, 2018
  78. Physics

    A basketball player makes a jump shot. The 0.650-kg ball is released at a height of 1.80 m above the floor with a speed of 7.80 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.40 m/s. What is the work done on the ball by air

    asked on March 6, 2018
  79. Calculus

    The total stopping distance T of a vehicle is shown below, where T is in feet and x is the speed in miles per hour. T = 2.5x + 0.5x^2 Approximate the change and percent change in total stopping distance as speed changes from x = 15 to x = 18 miles per

    asked on March 3, 2018
  80. physics

    An electron experiences an electric force of 0.70 nN . What’s the field strength at its location?

    asked on March 3, 2018
  81. math

    A parking lot space is in the shape of a rectangle. If the space has a length of 23 feet and a width of 12 feet, what is the area of the parking space?

    asked on February 14, 2018
  82. Calc (Derivatives)

    I understand finding the derivative and there is a simpler way of doing so, however, can someone show you derive at these answers by the DEF'N of Derivatives? Much appreciated! Question 1: Find, from the definition, the derivative, f'(x), for

    asked on January 30, 2018
  83. Calc: Limits

    how to calculate the limit: *I got confused especially with the square root. 1. lim as x approaches 2 (squareroot x^2 +5)-3 / (x-2) 2. lim as θ (theta) approaches zero (tan^2 (5θ) / (sin (3θ) sin (2θ) )

    asked on January 29, 2018
  84. English comp

    I need suggestions on how I could rephrase these without being repetitive and that the point comes across. Thank you (: 1. Alcohol is a dangerous recreational substance that many Americans very much abuse to what their body could take. 2. The reason why

    asked on December 11, 2017
  85. help[

    what is a + a?

    asked on November 21, 2017
  86. Physics

    A girl delivering newspapers travels 1 blocks west, 2 blocks north, then 4 blocks east. What is the magnitude of her resultant dis- placement? Answer in units of blocks. 002 (part 2 of 3) 10.0 points Find the direction (measured from due east, with

    asked on November 19, 2017
  87. Algebra 1

    Breathless Cosmetics now offers 24 shades of eye shadow, 20% more than last year. How many shades were offered last year?

    asked on October 15, 2017
  88. statistics

    In the game of​ roulette, a wheel consists of 38 slots numbered​ 0, 00,​ 1, 2,..., 36. To play the​ game, a metal ball is spun around the wheel and is allowed to fall into one of the numbered slots. If the number of the slot the ball falls into

    asked on October 11, 2017
  89. Bio

    There are a lot of components to the question. How can I answer this with a paragraph? Need help. Explain the role of sex chromosomes in inheritance> Answer must include: 1. Anatomical differences as result of XX/XY, 2. Arrangement and structure of X and

    asked on October 7, 2017
  90. physics

    an 85.0kg mountaineer remains in equilibrium while climbing a vertical cliff. the tension force in the supporting rope is 745 N. Find the magnitude of the reaction force F, which the cliff exerts on the mountaineer's feet.

    asked on October 3, 2017
  91. Physics

    Two cars with different motors are competing. One of the cars accelerate från 0-90 km/h on 12 seconds, the other one accelerate from 0-90 km/h on 20 seconds. The acceleration is the same all the time. After 90km/h, the velocity is constant. How many

    asked on September 20, 2017
  92. Physics

    A train has a velocity of 117 km/ h and discover another train standing stil 1200 meters away. The train starts immediately to brake. After 10 seconds the other train finally starts to move away from the first train. The acceleration is equable of both

    asked on September 19, 2017
  93. Math

    Complete the table and state the rule. Input | Output 0|0 |3 2| 3|9 | 5|15 6| I think the rule is Output = Input x 3 but I don't know how the rule should be worded. I think the chart should look like: Input | Output 0|0 1|3 2|6 3|9 4|12 5|15 6|18

    asked on September 18, 2017
  94. la

    The speaker in "Birches" compares the boy's climbing to a. girls dying there hair b. sweeping up broken glass c. a forest full of spiderwebs d. filling a cup to the top I think D

    asked on September 17, 2017
  95. History

    Economic principle # 1 is " principle choose". Employers choose to offer benefit packages to their employees. Apply the key economic principle "the consequences of choices lie in the future" to this decision. What are the important costs and benefits that

    asked on September 14, 2017
  96. Calculus

    Rectilinear Motion Discuss the Velocity, Acceleration, and Speed: 1. s(t)=2t^2 +8t-7 2. s(t)=3t^4 -16t^3 +24t^2

    asked on September 12, 2017
  97. Trigonometry

    State the quadrant in which theta lies. sin(theta) > 0 and cos(theta) > 0 How can I determine this? Please explain.

    asked on June 4, 2017
  98. Trigonometry

    Point P is located at the intersection of the unit circle and the terminal side of angle theta in standard position. Find the coordinates of P to the nearest thousandth. theta = -105degrees Please explain the steps. I'm completely stuck.

    asked on June 1, 2017
  99. Math

    In an examination of a certain class, at least 70% of the students failed in Physics, at least 72% failed in Chemistry, at least 80% failed in Mathematics and at least 85% failed in English. How many at lest must have failed in all the four subjects ?

    asked on May 26, 2017
  100. Math

    Write a rule for the nth term of the arithmetic sequence. -12, -5, 2, 9

    asked on May 16, 2017

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