# Questions Asked onOctober 31, 2017

1. ## math

verify The set of all 2 × 2 invertible matrices with the standard matrix addition and scalar multiplication is a vector space or not?

2. ## Algebra

Factor completely (x-2/3)^2-16(x-2/3)+63

3. ## biology

did cells loose their cell wall due to evolution or did they never have a cell wall to begin with? pls explain

4. ## Algebra

Factor completely. (m+n)^3-27 a=m+n b=3 (m+n-3)[(m+n)^2+3(m+n)+3^2] m^3 +3m^2n +3mn^2 +n^3-9 Is this right?

5. ## Calculus

If there is a critical point between intervals where a function is increasing on both intervals, is there a relative max/min at that point?

6. ## science

Which combination of sex chromosomes results in a male human being? 1 XX 2 YY 3 XY 4 either XX or YY is it a?

7. ## Math

Given P(A) = m is the probability of event A occurring in any given trial: 1. State the range of possible values of m 2. Suppose two trials are performed independently. Find, in terms of m, the probability of A occurring: a) Exactly once b) At least once I

8. ## Math

A surfer paddles out past breaking waves, rides a wave, paddles back out past the breaking waves, rides another wave back to the beach. Draw a sketch of a graph (with labels) that shows the surfer’s possible distance from the beach over time. What

9. ## Math

In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability that a randomly chosen student studies: 1. Both Economics and Law 2. At Least one of these subjects 3. Economics given that he or

10. ## English

Fill a glass with water. Cover the glass with paper. Turn the glass upside down. The water stays in the glass. 1. The outside air pressure is greater than the inside air pressure. ------------------------------------ This is about a simple science

11. ## Physics

You have been called to testify as an expert witness in a trial involving a head-on collision. Car A weighs 1515 lb and was traveling eastward. Car B weighs 1125 lb and was traveling westward at 45.0 mph. The cars locked bumpers and slid eastward with

12. ## English

1. To complete the report, you should write down preparation materials and experiment process with pictures. 2. To complete the report, you should write down preparation materials and testing process with pictures. 3. To complete the report, you should

13. ## Math

Find all 3-digit numbers that have the sum of the digits 7, and where each digit is smaller than the one on the left of it. ------------ Real Desperate for answer. I'll miss Halloween if i don't get this done.

14. ## Science

Which factor impacts the possible number of ways in which different atoms can be put together? An atoms inability to share neutrons and protons. The ability of atoms to combine in unlimited ways. An atoms inability to react with all elements the same way.

15. ## Math

Tim’s client wants to sell her house and needs an estimate of its value. To get an initial estimate, Tim averages the sale price of similar homes in the area. He also adjusts the value of each of these homes using a multiplier to take any differences in

16. ## physics

In a high speed chase, a policeman's car bumps a criminal's car directly from behind to get his attention. The policeman's car is moving at 40 m/s to the right and has a total mass of 1800 kg. The criminal's car is initially moving in the same direction at

17. ## Science

Can you help me? what iss 42.1 pounds eqaul to?

18. ## physics

A piece of uniform sheet metal measures 25 cm by 25 cm. If a circular piece with a radius of 5.0 cm is cut from the center of the sheet, where is the sheet’s center of mass now?

19. ## HELP THIS IS URGENT!

HOW MANY OZS IS IN 100 LBS? PLZ HELP ME!

20. ## Math

Use inverse operations to solve each equation. Explain each step and identify the property to reach step 19 = h/3 - 8 Solve the equation. Explain each step and identify the property used to reach step. 0.6x + 0.8 = 1.4

21. ## Math

When doing a calculation involving zoning laws, Tim comes across the following expression: fraction numerator a minus open vertical bar a close vertical bar over denominator a end fraction, where a is either a positive or a negative number. (A) What is the

22. ## algebra

Is -7+9 = -9+7 A. true B. False C. Open

23. ## Chemistry

Calculate the volume and mass required to make 100 mL of 0.10 M solutions of your assigned acid and conjugate base. Assigned acid and conjugate base: Ammonium chloride- 53.49 g/mol Ammonia- 1.0 M

24. ## algebra

how do you write an expression showing x=the square root of 45^2 + 30^2

25. ## Math(check answers)

Find the LCD of 3/5 and 1/6 a.5 b.6** c.11 d.30

26. ## Math

In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability that a randomly chosen student studies: 1. Both Economics and Law 2. At Least one of these subjects 3. Economics given that he or

27. ## Math help

Most states require students to pass an algebra course in order to graduate high school. Why do you think this is? Explain why you agree or disagree with this requirement

28. ## Math

If a certain number is increased by 5, one - half of the result is three - fifths of the excess of 61 over the number. Find the number

29. ## History

Which of the following statements best summarizes Washington’s viewpoint on American foreign policy? (1 point) The United States can take advantage of Europe’s ambition. The United States should limit interaction with Europe to commerce, or trade.

30. ## Science

Which of the following equations is balanced correctly? A. 3 H20 = H2 + 3 O2 B.2 C2H2 + 5 O2 = 4 CO2 + 2 H2O C.Cl2 + 2 KBr = KCI + Br2 D. 2 C3H3 + O2 = 2 CO2 + H2O

31. ## History

1. Why was the presidency of George Washington considered to be so significant? A His actions would define the role of the Supreme Court B His actions would set precedents for all future presidents C His actions would determine the need for a president ***

asked by Hi - need help
32. ## math

a single ball is drawn from an urn containing 6 balls numbered 1 through 6. Find the probability that the ball choose as follows. an even-numbered ball or an odd-numbered ball

33. ## History

Where were most of the southern plantations located?

34. ## MATH

this basic recipe for split pea soup serves 8 people. Find the amount of each ingredient that serves 32 people. I CANT FIGURE IT OUT URGENT QUESTION

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36. ## SS

a major reason for the establishment of new Spain and new France was to- A) promote religious freedom for Europeans*** B)spread Christianity among Native Americans*** C)enter into the fur trade with Native Americans D)enslave Native American for work in

asked by Sunky \(OvO /)
37. ## Science

Sodium is a medal and chlorine is a poisonous gas. Neither is safe to eat. However, when sodium and chlorine is combine, it produces edible table salt. What can be concluded? 1) Table salt has similar physical properties of both reactants. 2)Table salt is

38. ## Science disscussion

What form of pollution, if any, does each energy source cause How does the economy influence energy source choices How does location influence energy source choices

39. ## precalculus

Use long division to divide and use the result to factor the dividend completely. (5x2 − 3x − 14) ÷ (x − 2)

40. ## precalculus

Use long division to divide. 4x^4/ (x − 1)3

41. ## History

Which two weaknesses of the Articles of Confederation were exposed by Shays’s Rebellion The national government was subject to all of the states collectively and could not collect funds owed, leading to unfinanced veteran back pay. The United States

42. ## Science

Cystic fibrosis is a recessive genetic disorder caused by a mutation of the CTRF gene. The disease is characterized by excessive mucus production along the respiratory and digestive tracts in addition to other symptoms. Cystic fibrosis is a progressive

43. ## Math

Betty decides to support local artists by hanging their artwork in her shop. When decorating the coffee shop, Betty comes across the following formula for placing pictures on her walls: 1/3 |a-12|+ 2/3|a|where a equals the number of pictures that she would

44. ## Math

Betty decides to compare the diagonals of both the square and rectangular tables customers will use in the coffee shop. Her measurements show that the square tables have a side length of 34 inches and the rectangular tables are 29 1/3inches wide and 35

45. ## math

solve the inequality. explain each step and identify the property used for each step. 5z >_ -75

asked by nicki minaj

A little bumblebee accelerates uniformly at 1.5 m/s2 from rest to 22 m/s. Immediately upon reaching 22m/s, the brakes are applied and it stops 2.5 s later. Find the total distance traveled.

47. ## History

5. What was one reason for the formation of the democratic Republican Party? A Washington’s cabinet members wanted to form a new party to strengthen the federal government. B Thomas Jefferson’s views clashed with those of Alexander Hamilton *** C the

asked by Hi - need help
48. ## Geometry

How is constructing a perpendicular bisector similar to constructing an angle bisector? How is it different?

49. ## math

What is the solution to (4 x 10^3) x (6 x 10^6), written in scientific notation?

50. ## Geometry

How is constructing a perpendicular bisector similar to constructing an angle bisector? How is it different?

51. ## Geography

1.A football match between Senegal on Saturday the 22nd of September 1995 at 6pm calculate.1. the time. 2. Day to listen to the commentary's of the match by the Japanese

52. ## Geography

1.what is the longitude of town x whose time is 12:00 noon when Greenwich mean time is 6:00pm. 2.it The time at town A (longitude 75 degree W) 5:00pm on Friday, what will be the time and day at town B (longitude 120 degree E)

53. ## Geography

Calculate the approximate distance between Thelma (latitude 6°N) and London(latitude 52°N)

54. ## Statistics

QUESTION 1 Use the following scenario and data for all the questions The lives of Lithium batteries used in a type of cell phones are normally distributed with an unknown standard deviation. A simple random sample of equation batteries is selected. The

55. ## Physics

In the figure below, the CG of the pole held by the pole vaulter is 1.54 m from the left hand, and the hands are 0.653 m apart. (Assume the vaulting pole has a mass of 3.72 kg.) -Calculate the force (in N) exerted by his right hand. (Enter the magnitude.)

56. ## History

What were causes of the French Revolution? (Select all that apply.) widespread hunger of the third estate overreliance on trade with Muslim nations poor leadership and extravagant by the king rebellion from the Catholic church's practices a and c

57. ## History

Which best describes the causes of the French Revolution? (Select all that apply.) french aristocrats sought to relinquish power of the papacy in France in order to gain new lands and titles people in France, especially poor and lower classes, had been

58. ## english

23. The gerund phrase in the sentence below is used as a ___ Everyone enjoys watching a dolphin show. a. subject. b. direct object. c. predicate nominative. d. predicate adjective. struggling with this one

59. ## Math

(1) The curved surface area A of a cone of height and base radius is pie R squareroot H square+T square. (a) Make H the subject of the formula. (b) Find the height of a cone of area 550cm Square and base radius 7cm, taking pie to be 22/7. (2) if nSquare _

60. ## Math

Translate the phrase into an algebraic expression. Five times k A 5k (my answer) B k + 5 C k divided by 5 D 5 - k Evaluate the expression when a = 6 a-24 A - 30 (My answer) B - 18 C 18 D 22 Evaluate the expression when s = 9 and t = 12 2s - t A - 6 B 6 C

61. ## Global Studies

1)Why did Hitler killed jewish people ? 2)How many jewish people were killed during World War 2?

62. ## history

What is the Columbian Exchange and how was it positive advantage?

63. ## History

Which best describes a significant event that occurred during the American Revolutionary War? james madison wrote the first 10 amendments to the constitution, known as the bill of rights The battle of Gettysburg occurred in Pennsylvania, causing 15,000

64. ## AP US History

Evaluate the extent to which the opposition to slavery contributed to maintaining continuity as well as fostered change from 1776 to 1856. Please give me some topics to write about in my essay

65. ## History

What economic reasons contributed to the beginning of the French Revolution? (Select all that apply.) king Louis xvi required Protestants to pay higher taxes king Louis xvi required Catholics to pay higher taxes france was in debt due to overspending on

66. ## Science

Witch of the following shows the path followed by nerve impulses in a reflex

67. ## Algebra II

Sierra planted a 12ft. by 10ft. flower garden in her backyard. She put a gravel walkway of uniform width around it. How wide was the walkway if she used 168ft^2 of gravel?

68. ## Chemistry

1. The value of ΔH° for the reaction below is -6535 kJ. _________ kJ of heat are released in the combustion of 16.0 g C6H6 (l). 2C6H6 (l) + 15O2 (g) --> 12CO2 (g) + 6H20 (l) 3. Given the following reactions CaCO3 (s) --> CaO (s) + CO2 (g) ΔH = 178.1 kJ

69. ## Math

In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability that a randomly chosen student studies: 1. Both Economics and Law 2. At Least one of these subjects 3. Economics given that he or

70. ## math

The number of years of education of self-employed individuals in the United States has a population mean of 13.6 years and a population standard deviation of 3.0 years. If we survey a random sample of 100 self-employed people to determine the average

71. ## Eco

When Joe started his job at the laundromat 5 years ago, his wage was \$5.50 an hour. Today his wage is \$8.50 an hour. If Joe started his job in the base year, and his real wage is the same as when he started, what is the Consumer Price Index today?

72. ## Chemistry

An electron in a hydrogen atom absorbs 15.5 x 10-20 J of energy. If the electron originated at energy level 3, to what level was it excited?

73. ## AP Chem

A lab manual states that to prepare a certain buffer requires mixing 25 ml of 0.200 M HClO (Ka=3.00 x 10^-8) with 50 ml of 0.2 M NaClO What is the Ph of this buffer?

74. ## History

Why did Benjamin Franklin change Thomas Jefferson’s original phrase, “We hold these truths to be sacred” to “We hold these truths to be self-evident” in the Declaration of Independence? (Select all that apply.) benjamin franklin was an atheist,

75. ## science

where does energy come from in north carolina