Questions Asked on
June 1, 2020

  1. math

    Dina and Masha start cycling on a 20 km bike path at the same time. When Dina reaches the end of the path, Masha still has 4 km of the path left to cycle. If Dina’s cycling speed is 10 km/h, how much time longer will Masha need to complete the path? PLZ

    asked by an i oop
  2. history

    Please help ASAP!!!! I need to know the answer within a few minutes!!! What tensions have built because of concerns about the climate change theory? The climate change theory has created tensions in third-world countries that produce the largest amount of

    asked by walrus
  3. Physical Science

    A bicycle pump contains 250 cm3 of air at a pressure of 90 KPa. If the air is compressed, the volume is reduced to 200 cm3. What is the pressure of the air inside the pump?

    asked by Nancy
  4. World History

    What was the First Industrial Revolution? A) the period of new technology that shifted the focus from industry to the spread of information B) the period when modern science emerged and transformed views on society, politics, and nature C) the period of

    asked by Ana.00
  5. Mathematics

    1-sin2x/cosx=tan(π/4-x)

    asked by Anonymous
  6. Mathematics

    The three term of a GP is 20 and 8 term is 640 find the common ratio. The first term and 10 term of a GP

    asked by Chinaza
  7. Chemistry

    A radioactive substance has a half-life of 3 minutes. After 9 minutes, the count rate was observed to be 200. What was the count rate at zero time?

    asked by The orange baboon
  8. PreCalculus

    How would I find cos(u/2) if sec u =13.465 and u is in Quadrant-IV (assume that 0

    asked by Mira
  9. math

    Two boxes contain pictures of hockey and basketball players. In one box, the ratio of hockey players to basketball players is 4:3. In the other box, the ratio is 3:2. The boxes contain the same number of pictures. a) What could the total number of pictures

    asked by joness
  10. precalculus

    Which statement describes the graph and orientation of the parametric equations x=9cost and y=9sint? A.The graph is a circle with a radius of 3. The orientation is counterclockwise as t increases. B. The graph is a circle with a radius of 9. The

    asked by Jennifer
  11. Precalculus

    A ball is thrown with a slingshot at a velocity of 95 ft./sec. at an angle of 25 degrees above the ground from the height of 6 ft. Approximately how long does it take for the ball to hit the ground? Acceleration due to gravity is 32 ft./s^2. A. 2.65

    asked by Monica
  12. Statistics

    You would like to determine the percentage of coffee drinkers in your university, and collected the following binary data set from random students on campus, 1 for coffee drinker and 0 for otherwise: 0,0,0,1,1,0,1,0,1,1,1,1,0,0,0,1,0,1,0,0,0,0,0,1. Let Yi

    asked by Bob
  13. Math

    Carlos kept track of how much cereal he ate for 2 months and found that he ate 208 ounces of cereal in that time.how many pounds is that?

    asked by Anonymous
  14. mathematics

    How is the interquartile range of a data set different from the standard deviation of a data set?

    asked by Samuel
  15. Math

    In this problem, a ‘word’ is a string of letters, each of which is A, B, or C. A word is ‘interesting’ if every letter A must be followed by a B unless the A is the last letter of the word. Note that there do not have to be any As, however. For

    asked by Eyin
  16. math

    please help In a class library, 3 out of 4 books are non-fiction. The rest are fiction. How many non-fiction books could there be? How many fiction books? How many different answers can you find for part a? Which answers are reasonable? Explain. thank you

    asked by joness
  17. Mathematics

    John and Ernest are close friends.ernest is 5 years younger than John. in ten years John's age will be 3 times Ernest age. Find their ages.

    asked by John
  18. Physics

    A 8 cm object is placed 1 cm in front of a concave mirror with a focal length of 12 cm

    asked by Alexander strenvenski
  19. poetry

    who is the speaker in the poem my guilt by Agnes

    asked by kenji
  20. math

    Write the Recursive Formula for the given sequence. -1, -5, -25, -125, -625

    asked by klara
  21. maths

    f(x)={x²+1 if x≤2 {(x-3)² if x≥2 They said Lim x=>2^(-) f(x)=? lim x=> 2^+ f(x)=? But I don't know how

    asked by Same
  22. Physical Science

    A hiker, of mass 80 kg walks up a mountain, 700 m above sea level, to spend the night at the top in the first overnight hut. The second day she walks to the second overnight hut, 400 m above sea level. The third day she returns to her starting point, 200 m

    asked by Patricia
  23. Physical Science

    A hiker, of mass 80 kg walks up a mountain, 700 m above sea level, to spend the night at the top in the first overnight hut. The second day she walks to the second overnight hut, 400 m above sea level. The third day she returns to her starting point, 200 m

    asked by Nancy
  24. Physical Science

    Steel, an alloy, would be classified as a (n)

    asked by Sam
  25. Physics

    How does quantum field theory account for fundamental forces acting over a distance? I am not sure as to what the question is asking.

    asked by Hanna
  26. math

    please help with explination. this has alreay been answered by oobleck but i still dont understand. In one store, the ratio of DVDs to videos is 7:5. In another store, the ratio of DVDs to videos is 4:3. Explain why you cannot say which store has more

    asked by joness
  27. Science

    What are some Positive effects of Genetic Engineering and Negative effects of Genetic Engineering.

    asked by DJ
  28. Math

    Write the Recursive Formula for the given sequence. 1, 4, 16, 64, 256, ... a(n+1) = a(n) * -4; a(1) = 1? a(n+1) = a(n) * -3; a(1) = 1? a(n+1) = a(n) * 4; a(1) = 1? a(n+1) = a(n) * 3; a(1) = 1?

    asked by Shang
  29. Math

    a paper towel company's new product division creates a paper towel made from a new mix of cellulose fibers. The new paper towels cost 20% more to manufacture than the original paper towels. After testing 500 new paper towels, they find that the mean

    asked by Samuel
  30. Mathematics

    H(x)=-t ^ 2 +8t

    asked by Anonymous
  31. World History

    What was Eurocentrism? A) the belief that manufacturing centers should be located in Europe B) the belief that European civilization was superior to other cultures C) the belief that European languages were superior to other languages D) the belief that

    asked by Ana.00
  32. Mathematics

    cos B= 0.5299

    asked by Sarah
  33. Precalculus

    A bowling ball is rolled down the alley with a constant with a constant velocity of 1.5 m/sec. at an angle of 87 degrees to the starting line. The position of the person throwing the bowling ball can be represented by the point (0,0). Where is the ball

    asked by Jamaica
  34. mathematics

    While at a beach, Melody takes a sip out of a coconut for some fresh coconut milk. Melody drinks 0.095 L of coconut milk. Write the amount of liters in scientific notation.

    asked by erick
  35. mathematics

    According to the u s geological survey there are over 332,519,000 cubic miles of water on the planet.Write this number in scientific notation.

    asked by erick
  36. Health

    Create a simple plan that show how many calories you should consumer to maintain your ideal weight.

    asked by AHHHHHHHHH
  37. Maths

    If it takes Polly the Painter 1 hour to paint a bedroom floor that is 9 feet wide and 12 feet long, how long will it take her to paint the living room floor, which is twice as wide and twice as long?

    asked by Lucas
  38. Math

    how many books is a reasonable amount in a library (on average)

    asked by joness
  39. math

    A rectangular box has a volume of $4320$ cubic inches and a surface area of $1704$ square inches. The sum of the lengths of its $12$ edges is $208$ inches. What would be the volume of the box, in cubic inches, if its length, width and height were each

    asked by Anonymous
  40. economics

    Which of the following are mentioned in the video as things to keep in mind, when picking the best life insurance option? Consider the non-numerical items, not just the numerical items Age matters Always pick the one with the lowest cost per year Dividends

    asked by Ariana
  41. Math

    Dividing Exponents Hi! I was simplifying the problem 4^4/4^6 I tried ways of simplifying I learned in the lesson, and I got the answer 1/2 or 4^-2 The problem is, none of the choices I was given match those. I've tried redoing it several times, and I still

    asked by CellLover727
  42. history

    1. When did Russia's “Red October” Revolution take place? (Time and Place)

    asked by Keanu Reeves
  43. math

    zoe needs at least $30 to buy a gift she has $12 . witch ends in quality could zoe use to find out how much more money (m) she needs...

    asked by ava
  44. Math

    Write the Explicit Formula for the given sequence. -16, -9, -2, 5, 12, ...

    asked by Klara
  45. social studies

    How did mechanization of agriculture affect population distribution in South America

    asked by Anna oop -
  46. history

    What happened before, during, and after the Holocaust in Europe during World War 2? someone please help

    asked by i need help
  47. Physical Science

    A herder is herding his sheep into the corral. A mother sheep and its lamb are both running at 3.0 m/s towards the corral. The sheep has a mass of 60 kg and the lamb has a mass of 20 kg. a. What is the kinetic energy of the sheep. b. What is the kinetic

    asked by Mary
  48. mathematics

    a used car dealer wants to know the mean mileage of the cars currently in his lot. Rather than checking all of the cars, he samples 25 cars and finds that the mean mileage of the sample is 12,456.25. Assuming a standard deviation of 225 miles a confidence

    asked by Samuel
  49. Mathematics

    In a right rectangular pyramid with base edges a=18 cm and b=10 cm the slant height towards a is k=13 cm while the slant height towards b is l=15 cm. Find: The surface area of the pyramid

    asked by Rain
  50. Chemistry

    1). Explain why a substance is considered a strong electrolyte, weak electrolyte, or non-electrolyte. 2) List two factors that might influence the conductivity of aqueous solutions.

    asked by Beige
  51. Chemistry

    Make your prediction if you were working with these bases: NaOH, Ca(OH)2, Al(OH)3. 1) The graphs, slope of the lines if the concentrations are the same. Which would have the greatest? Which would have the smallest? 2) What would account for the difference

    asked by Beige
  52. Precalculus

    Given the function y=x^2-4, write the parametric equations that would allow the same path for x=t-3. A. x=t-3, y=t^2-6t-13 B. x=t-3, y=t^2-6t+9 C. x=t-3, y=t^2-6t+5 D. x=t-3, y=t^2-6t

    asked by JRose
  53. math

    how many cobinations of books 0 to 1000 can you find with 75% nonfiction and 25% fiction. It has to be whole numbers

    asked by joness
  54. Physics

    Uniform Circular Motion: For sphere with a rotation angle of 2pi rad and 1 revolution what is a) angular speed b) linear speed c) radial acceleration

    asked by Glichav