cam

Most popular questions and responses by cam
  1. Math

    An investment is worth $3518 in 1995. By 2000 it has grown to $5553. Let y be the value of the investment in the year x, where x = 0 represents 1995. Write a linear equation that models the value of the investment in the year x. A. y = -407x + 7588 B. y

    asked on April 4, 2017
  2. Math

    Which quadratic rule represents the data in the table? X : -1 | 0 | 1 | 2 | 3 Y: 4 | 5 | 4 | 1 | -4 Y = -2x^2 + 5 Y = -x^2 + 5 Y = -x^2 - 5 Y = x^2 + 5 My answer is Y = -x^2 - 5

    asked on May 9, 2016
  3. Chemistry

    Calculate the pH of the 0.20 M NH3/0.25 M NH4Cl buffer. I calculated the pH to be 9.15 What is the pH of the buffer after the addition of 10.0 mL of 0.10 M HCl to 72.5 mL of the buffer?

    asked on March 19, 2013
  4. Language Arts

    What is a literal description poem? Or can someone provide an example? (would be easiest for me) but I am up to any of the tutors to post a reliable link that can help me as I can not find any in my search engine thanks.

    asked on April 25, 2018
  5. spanish

    How do you say an uncle in spanish? A:uno tio B:unos tios C:un tio** How do you say some female cousins in spanish? A:Unas primas B:Una prima C:Unos primos**

    asked on February 17, 2017
  6. Algebra 2

    Mrs. Jones algebra 2 class scored very well on yesterday's quiz. With one exception, everyone received an A. Within how many standard deviations from the mean do all the quiz grades fall ? Ó =3.1 95, 92,94,88,96,99,91,93,94,97,95,97

    asked on April 1, 2016
  7. Math

    What are the mean, median mode and range of the data we given the altitude of lakes in feet? -9,-36,-23,-8,17,-52,27,-36 Mean: -25 Median: -26 mode: -44 range: 36 Mean: -25 Median: -:-36 mode: -36 Range: 44 Mean: -26 Median: -25 Mode: -36 range: 44 Mean:

    asked on April 20, 2016
  8. social studdies

    Which event within a state will most likely require the involvement of the federal government A.A corporation is created B.The state constitution is amended C.A boundary with a nearby state is disputed D. The rules for obtaining a drivers licence change

    asked on October 19, 2016
  9. Chemistry

    Balance the following redox (oxidation-reduction) reaction under basic conditions. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.) CrO42−(aq) + S2O32−(aq) → Cr3+(aq) +

    asked on April 14, 2014
  10. Statistics

    For questions 1-5, write the null and alternative hypothesis. 1. Does the water temperature have an effect on the number of people in the pool? 2. Does the weather have an effect on the number of people at the beach? 3. A fitness center is running a

    asked on May 3, 2013
  11. physics

    if a plane is flying at a speed so that the apex half-angle of its shock wave is 30 degrees, what is the speed if the speed of sound is 320 m/s?

    asked on May 13, 2011
  12. geometry

    1. Initial point: (0, 0); Terminal point: (3, -4) A Lesson 13 B Lesson 13 C Lesson 13 D Lesson 13 E Lesson 13 F Lesson 13 2. Initial point: (3, 5); Terminal point: (-2, -1) A Lesson 13 B Lesson 13 C Lesson 13 D Lesson 13 E Lesson 13 F Lesson 13 In problems

    asked on December 7, 2011
  13. statistics

    2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule? 3. If we are focused on 68% of the normal distribution, what percentage of the distribution is left in the upper tail only? 4. What value

    asked on April 23, 2013
  14. Social Studies

    What two ancient civilizations had the most similar religious beliefs/ A. Greek and Persian B. Roman and Greek C. Chinese and Roman D. Persian and Chinese I pick B is this correct

    asked on March 20, 2015
  15. English

    I am reading "The crisis, No.1" now. What does this sentences mean "Mutual fear is the principal link in the chain of mutual hate, and woe be to that state that breaks the compact"? I really need help. Please tell me someone. "Mutual fear is the principal

    asked on October 17, 2006
  16. Physics

    A single mass (m1 = 3.2 kg) hangs from a spring in a motionless elevator. The spring constant is k = 253 N/m. 1) What is the distance the spring is stretched from its unstretched length? This first answer is equal to 12.4 cm but I am having trouble on the

    asked on February 21, 2014
  17. Physics

    A blue ball is thrown upward with an initial speed of 19.6 m/s, from a height of 0.5 meters above the ground. 2.4 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 7.9 m/s from a height of 22.1 meters above the

    asked on February 2, 2014
  18. Statistics

    1. A study of 40 people found that they could do on the average15 pull ups with a standard deviation of .6. Find the 99% confidence interval for the mean of the population. 2. A study of 50 pizza delivery workers found that they could make 6 deliveries per

    asked on May 3, 2013
  19. Physics

    You are on an airplane traveling 30° south of due west at 130 m/s with respect to the air. The air is moving with a speed 30 m/s with respect to the ground due north. One question.. 2) What is the heading of the plane with respect to the ground? (Let 0°

    asked on February 15, 2014
  20. chemistry

    A sample of a hydrate of CuSO4 with a mass of 250 grams was heated until all the water was removed. The sample was then weighed and found to have a mass of 160 grams. What is the formula for the hydrate? CuSO4 * 10 H2O CuSO4 * 7 H2O CuSO4 * 5 H2O CuSO4 * 2

    asked on December 27, 2010
  21. Adv biomechanics

    a 1kg ball is thrown vertically. If the ball has a velocity of 8 m/s at release, please find: the maximal height that the ball can reach and the time it took for the ball to reach the maximal height and how long does it take for the ball to return to

    asked on June 13, 2019
  22. Science

    Why do scientists study images made with parts of the electromagnetic spectrum other than visible light? A)These images are the only way to observe galaxies beyond our own. B)These images reveal information that visible light does not show. C)These images

    asked on April 4, 2016
  23. Physics

    With what minimum speed must you toss a 130 g ball straight up to hit the 12 m-high roof of the gymnasium if you release the ball 1.3 m above the ground? I already figured out the minimum speed, 14m/s I'm confused on the next part With what speed does the

    asked on March 27, 2011
  24. Math

    1.Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15*** D.225 2.The length of a hypotenuse of a right triangle is 13cm. The length of one leg is 5cm. Find the length of the other leg. A.14 B.144 C.8 D.12***

    asked on November 7, 2015
  25. Math

    The rabbit population in a forest area grows at the rate of 7% monthly. If there are 180 rabbits in September, find how many rabbits (rounded to the nearest whole number) should be expected by next September. Use . A. 402 B. 408 C. 428 D. 415 I got 402, is

    asked on April 5, 2017
  26. Math

    Consider the monomials 15x^2y^2 and 6x^3y. a. Factor the monomials. b. What factors of these monomials are common factors? c. Find the greatest common factor of 15x^2y^2 and 6x^3y. (UPDATED VER.)

    asked on September 3, 2018
  27. Math

    Consider the monomials 15x^2, y^2, and 6x^3 a. Factor the monomials. b. What factors of these monomials are common factors? c. Find the greatest common factor of 15x^2, y^2, and 6x^3

    asked on August 30, 2018
  28. physics

    A projectile is launched vertically from the surface of the Moon with an initial speed of 1210 m/s. At what altitude is the projectile's speed two-fifths its initial value?

    asked on April 25, 2014
  29. geometry

    A plane is heading west at 200 mph. The wind is blowing S30°W at 25 mph. 1. What is the ground speed of the plane? 2. When you solve the triangle, what is the smallest angle? 3. What is the largest angle of the triangle? 4. What is the remaining angle? 5.

    asked on December 6, 2011
  30. German

    8. Der Mann... A)bist alt B)Sind alt*** C)sieht alt aus D)saht alt aus 9)Die Frau... A)hat blondhaarig B)bist blondhaarig*** C)sind blondhaarig D)ist blondhaarig 10)Die Sonne... A)hat gelp B)Ist gelb*** C)Bist geld D)sind gelt 11)Die alten legendend...

    asked on December 19, 2018
  31. geometry

    In problems 1 and 2, the initial point and the terminal point of a vector are given. Write the vector in component form. 1. Initial point: (0, 0); Terminal point: (3, -4) A Lesson 13 B Lesson 13 C Lesson 13 D Lesson 13 E Lesson 13 F Lesson 13 2. Initial

    asked on December 6, 2011
  32. DNA genotype

    ) In the example above, the Punnett Square represents a cross (mating) between a male (on the left side) with blood type AB, and a female, (top of square), with blood type A, genotype Ao.

    asked on April 8, 2008
  33. 5th grade

    We are working on Fractions, mixed numbers and decimals. the problem says - write each decimal as a fraction or mixed number in simplest form... 0.7 or 0.08 ....ugg HELP

    asked on February 19, 2009
  34. statistics

    A study found that citizens spend on average $1950 per year on groceries with a standard deviation of $100. Assume that the variable is normally distributed. 5. Identify the population mean. 6. Identify the population standard deviation. 7. Find the

    asked on April 19, 2013
  35. statistics

    A specific study found that the average number of doctor visits per year for people over 55 is 8 with a standard deviation of 2. Assume that the variable is normally distributed. 1. Identify the population mean. 2. Identify the population standard

    asked on April 15, 2013
  36. Algebra

    the area of a rectangle painting is given by the trinomial a^2-14a+45. the painting length is (a+2). what is the painting width?

    asked on January 23, 2018
  37. science

    Some hypothetical metal has the simple cubic crystal structure. If its atomic weight is 70.4 g/mol and the atomic radius is 0.126 nm, compute its density in g/cc.

    asked on January 22, 2015
  38. stats

    Usin7) An employer polled its employers to see if they agree with the proposed new store hours and whether or not their present shift made a difference in their answers. The customers answered 1 for agree, 2 for don't know, and 3 for disagree. Nine first

    asked on June 15, 2013
  39. math 6th grade

    the bridge span is 360 meters long. the bridge is 30 meters shorter than the main span. write and solve an equation to the the length of the main span

    asked on February 3, 2014
  40. geometry

    For problems 7 and 8, find the magnitude and direction angle of the given vector. 7. A magnitude: 5; direction angle: 53.13° B magnitude: √ 5; direction angle: 53.13° C magnitude: √5; direction angle: 3.40° D magnitude: √5; direction angle: 0.80°

    asked on December 14, 2011
  41. Physics

    Instructions for finding a buried treasure include the following: Go 585.3 paces at 156◦ , turn to 215◦ and walk 282 paces, then travel 400 paces at 132◦ . Find the magnitude of the resultant displacement from the starting point. What is the

    asked on September 5, 2018
  42. geometry

    Two forces are pushing on an object, one at 12 lbs of Force and one at 5.66 lbs of Force. The angle between them is 35° (each is 72.5 from horizontal, such that the forces make a v with the object in the center). 17. What is the total Force on the object?

    asked on December 6, 2011
  43. science PLEASE!

    Remember, the treadmil is a machine. What is the inpput force exerted by the man inside the whill?? what is the output force exerted upon the water rising from the well? waht is the mechanical advantage of this machine? the man wt is 75kg. he raises his

    asked on November 1, 2007
  44. Research Paper (Report)

    How am I supposed to write very beginning of the essay? Generally, a thesis statement will appear in the introduction to the essay, which is the first paragraph or section of the essay introducing your topic. Aim for a clear, strong introduction that sets

    asked on September 22, 2006
  45. jiskha

    can i please get unbanned

    asked on October 22, 2018
  46. Biology

    what is the difference between a gene mutation and a chromosomal mutation?

    asked on December 18, 2012
  47. geometry

    Two forces are pushing on an object, one at 12 lbs of Force and one at 5.66 lbs of Force. The angle between them is 35° (each is 72.5 from horizontal, such that the forces make a v with the object in the center). 17. What is the total Force on the object?

    asked on December 6, 2011
  48. chemistry

    how much calcium oxide is recovered when 250 g calcium hydroxide are heated given the following reaction? Ca(OH)2 arrow CaO + H2O

    asked on April 11, 2011
  49. Math

    Recipe needs to make exactly 10 cups. 5 ingredients. Using 1/3 cups and/or 1/4 cups only. Please help.

    asked on December 5, 2016
  50. Physics

    A red ball is thrown down with an initial speed of 1.2 m/s from a height of 25 meters above the ground. Then, 0.6 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 22.9 m/s, from a height of 0.8 meters above the

    asked on February 2, 2014
  51. 6th math

    a factory can produce 45 containers of yogurt in t minutes, 950 grams of fruit are used for every 25 containers of yogurt b) find in terms of t the time taken by the factory to produce 100 containers of yogurt c) if t=6 find the amount of fruit used in

    asked on March 5, 2013
  52. Algebra

    What is the remainder when 13 to the 51st power is divided by 5?

    asked on April 14, 2011
  53. Teaching techniques

    Which learning technique is frequently used in the expository model of teaching?

    asked on April 14, 2013
  54. Calculus

    Find relative maxima and minima of g(x)= 2x^2+ 4000/x +10

    asked on March 6, 2013
  55. Biology

    do mutations occur in DNA or RNA? Explain

    asked on December 18, 2012
  56. geometry

    16. Vector A has a magnitude of 3 in the leftward direction and B has a magnitude of 5 in the rightward direction. What is the value of 2A – B? You can also answer other types of problems using vectors. Try this one: Two forces are pushing on an object,

    asked on December 6, 2011
  57. chemistry

    caffeine has a half-life of 4.6 hours in the human body.. How long would it take 125 milligrams tritium to decay to 22 milligrams?

    asked on April 11, 2011
  58. History

    What are 3 main events that led to the stock market crashing in 1929?

    asked on May 6, 2018
  59. pre-calc

    A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn:   2 is a factor of n^2 + 7n

    asked on May 4, 2017
  60. Instructional materials, their preparation and use

    Which of the following would you use to sort through slides for a slide or injection?

    asked on June 17, 2013
  61. physics

    )A block with mass m = 11.3 kg slides down an inclined plane of slope angle 43.4 ° with a constant velocity. It is then projected up the same plane with an initial speed 1.45 m/s. How far up the incline will the block move before coming to rest?

    asked on December 9, 2012
  62. abnormal child psychology

    someone who focuses narrowly on negative events for long periods of a time has. A-negative attitude. B-depressive manner. C-negative focus. D-depressive ruminative style.

    asked on May 3, 2012
  63. geometry

    16. Vector A has a magnitude of 3 in the leftward direction and B has a magnitude of 5 in the rightward direction. What is the value of 2A – B? You can also answer other types of problems using vectors. Try this one: Two forces are pushing on an object,

    asked on December 6, 2011
  64. physics

    a gun fires a shell with a speed of 315m/s. Neglecting the effects of air resistance, calculate the maximum range of this gun

    asked on October 8, 2011
  65. math

    A bookcase has 43 books. there are 34 students in the class. Are there enough books for the students? how do you know? use place value to solve

    asked on August 17, 2009
  66. Science Fair

    What can i do for related topics in my science fair for preserveation of cucumbers

    asked on December 2, 2007
  67. ECON Firm

    Suppose you have an industry with 20 firms and the CR is 30%. How would you describe this industry?Suppose the demand for product rises and pushes up the price for the good. What long run adjustments would you expect following this change in demand? What

    asked on June 12, 2006
  68. Math

    How to use a model for 5/8 divided by 2/3

    asked on November 24, 2017
  69. trig

    verify the identity algebraically- (5-5 cos x)(5+5 cos x)=25 (sin^x)

    asked on March 12, 2012
  70. chemistry

    An analysis of an unknown compound found it contained 40 g potassium, 52 g chromium and 56 g of oxygen. a) What is the empirical formula for this compound? Show the work you did to determine the formula. b) What type of compound is it, ionic, covalent or a

    asked on December 14, 2010
  71. chemistry

    in 2CO(grams) + O2(grams) => 2CO2(grams), what is the ratio of moles of oxygen used to moles of CO2?

    asked on January 31, 2008
  72. Calculus

    How can I solve this using Log differentiation? I'm not sure how to even start it. y=(cos(x)(x^2+9)^(2/3)/(sqr(x^3+2))

    asked on April 13, 2015
  73. math

    Jackson have a piece of wood that is 6 feet long. He is cutting it into pieces that are 1/3 of a foot. How many pieces of wood will he have after he cuts it?

    asked on January 7, 2015
  74. Physics

    A jetliner, travelling northward, is landing with a speed of 79 m/s. Once the jet touches down, it has 710 m of runway in which to reduce its speed to 7.4 m/s. Compute the the average accelaration (magnitude and direction) of the plane during landing.

    asked on September 20, 2013
  75. math

    dave has a rabbit, a ferret,a gerbil and a turtle. He feeds them in a different order each day. In how many different orders can dave feed his pets. Make an organized list to solve each problem. Write each answer in a complete sentence show work please

    asked on September 10, 2012
  76. Chemistry University One

    Is it possible for a calorimeter to have a high specific heat capacity, such as 2780J? I don't know if that is a reasonable answer.

    asked on February 1, 2012
  77. trig

    A force of 50 pounds acts on an object at an angle of 45°. A second force of 75 pounds acts on the object at an angle of -30°. Find the direction and magnitude of the resultant force.

    asked on December 14, 2011
  78. calculus

    F(x)=square root(27x-x^4)

    asked on July 28, 2011
  79. Chemistry

    Which of the following reactions needs to be reversed to solve for the Heat of Neutralization between Hydrochloric Acid and Ammonia? Acetic Acid + Sodium Hydroxide Hydrochloric Acid + Sodium Hydroxide Acetic Acid + Ammonia

    asked on March 29, 2010
  80. science

    Gravity accelerates objects downward at 9.8 m/s. How much downwards force does the man generate with each step he takes? how much work is performed when gravity pulls him down 0.5 m after each step?

    asked on November 1, 2007
  81. jiskha

    i'm sendtheword and i'm asking why i was banned

    asked on October 22, 2018
  82. Civics

    What biases are present n the movie Bowling for colombine?

    asked on May 7, 2018
  83. History

    I need to make a timeline for the great depression. I need four lead up events to the stock market crash, then after that happens, i need four response events on how they responded to everything falling apart.

    asked on May 6, 2018
  84. math

    How do i divide 6 by 2/7

    asked on October 20, 2015
  85. math

    Jenny wanted to solve the quadratic equation x2 - 11x +18 = 0 by factoring. Which of the following equations would lead her to solve the given equation?

    asked on August 30, 2014
  86. math

    the length of the blue ribbon is two-thirds of the length of the red ribbon. writh an equation to find the length r of the red ribbon

    asked on February 3, 2014
  87. Stats

    A company with two plants producing the same product, but with two slightly different manufacturing processes, conducted a sample study at each of the two plants with the following results: The sample statistics from the first group are: n = 40, x-bar =

    asked on November 13, 2013
  88. Calculus

    Write the expression as the logarithm of a single quantity. ln 2 + 1/2 ln(x +1)-2 ln(1+ x^(1/2))

    asked on April 10, 2013
  89. College Math

    I need help solving these problems by using the substitution problem 2x-3y=16 5x+2y=21

    asked on March 20, 2013
  90. calculus

    Let f(x)=ax^3+6x^2+bx+4. Determine the constants a and b so that f has a relative minimu at x=-1 and a relative maximumat x=2.

    asked on March 6, 2013
  91. physical science

    You are at a concert and you are located 91.2-m from the speakers. The frequency belting from the speakers are 291-Hz, if it takes 0.230-sec for the sound to reach your location what is the sounds wavelength?

    asked on February 28, 2013
  92. physical science

    You are at a concert and you are located 95.9-m from the speakers. The frequency belting from the speakers are 257-Hz, if it takes 0.503-sec for the sound to reach your location what is the sounds wavelength?

    asked on February 28, 2013
  93. physical science

    You are at a concert and you are located 97.5-m from the speakers. The frequency belting from the speakers are 216-Hz, if it takes 0.181-sec for the sound to reach your location what is the speed of sound in this facility?

    asked on February 28, 2013
  94. Math

    If Bob hikes 5/8 of a mile in 1/3 of an hour. How fast is going in miles per hour?

    asked on January 23, 2013
  95. physics

    )A block with mass m = 11.3 kg slides down an inclined plane of slope angle 43.4 ° with a constant velocity. It is then projected up the same plane with an initial speed 1.45 m/s. How far up the incline will the block move before coming to rest?

    asked on December 9, 2012
  96. English

    On an invitation, it says "Come celebrate at my pad!" and has a picture of a lilly pad on it. Is this an example of a pun?

    asked on September 20, 2012
  97. math

    the end points of a line segment are A (-7, -1) and B (5,5) determine the equation of right bisector of AB show that the origin 0,0 lies on the right bisector of AB

    asked on August 18, 2012
  98. Math

    How do you find the high and low estimate for 29 x 73 and 615 X 25?

    asked on July 15, 2012
  99. writing

    what are two characteristics of orientalism

    asked on April 15, 2010
  100. writing

    what is the difference between arab and muslims

    asked on April 15, 2010

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