# Questions Asked onSeptember 29, 2017

1. ## history

Which most accurately reflects the development of agriculture in early African civilizations? the walls of the jabrin castle were erected in oman to protect valuable crops the kingdom of Ghana exchanged surplus crops and gold for textiles and salt brought

2. ## Algebra

What type of equation will best fit the data below? Linear Quadratic Exponential (I have a picture of a graph is there a way I can show it too get help?)

3. ## Chemistry

Write a net ionic equation for the reaction that occurs when cobalt(II) carbonate (s) and excess hydroiodic acid are combined.

4. ## Algebra

Find the average rate of change of f(x)=6x²−3 on the interval [2,a]. Your answer will be an expression involving a What I did so far: I found f(2) which is 21 and that would make the function (2,21) Then, I found f(a) which is 6a^2-3 and that would make

5. ## history

What was the Roman Empire’s system of government prior to Julius Caesar that heavily influenced Western democracies? Peasants, including women and slaves, were ruled by kings, barons, and lords. Roman government consisted of a king, crown prince, and an

6. ## history

Which best defines settlement as it pertains to the history of civilization? a location where two parties resolved disputes or conflict over land ownership a location where groups ceased roaming and built permanent dwellings location where natural

7. ## history

In 332 BC, which military leader defeated the Persians and annexed Egypt to be part of his Macedonian Greek empire? alexander the great Julius Caesar mark antony king tutankhamum is it a

8. ## Biology matriculation

What is the expected frequency for a person having tongue rolling ability and attached earlobe???

9. ## Science

What is the density of a book whose mass is 1,800 g and whose volume is 300 cm3? *My Answer*You want to identify the numbers first, density = mass ÷ volume. Which would give you, 1800g ÷ 300 cm³ = 6 g/cm³. *Cant Figure Out *What is the mass of a ball

10. ## history

Which best describes a democracy? form of government in which political power is held by a single ruler form of government in which political power is held by the people government based on appointing officials according to merit and academic

11. ## Calculus

A ball is thrown from a height of 130 feet with an initial downward velocity of 6/fts . The ball's height h (in feet) after t seconds is given by the following. =h−130−6t16t2 How long after the ball is thrown does it hit the ground?

12. ## Trigonometry

Sketch the graph of the function (Include two full periods. Find one complete cycle. Show your work. y=-3+5cos πt/12

13. ## history

Which major culture of the ancient world is responsible for producing literature such as the Iliad and the Odyssey? I think its greek

14. ## math

what is 4/5 of 10/13? A. 40/65 B. 5/18 C. 8/13 D. 20/65

asked by I really hate school

Think about all of the many products you can purchase today. Identify one product that currently represents each phase of the product life cycle, and make a brief statement about its competition, price, distribution, and promotion.

16. ## phisical science

On a winter day the temperature drops from –15°C to –25°C overnight. If a pan sitting outside contains 0.20 kg of ice, how much heat is removed from the ice for this temperature change?

17. ## chemistry

Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0-L container. At 23.0 ∘C, the total pressure in the container is 5.20 atm . Calculate the partial pressure of each gas in the

18. ## Math

Cy has 42 baseball cards and 70 football cards that he wants to group into packages. Each package will have the same number of cards and each package will have the same numbers of baseball cards and football cards. How many packages will Cy make if he uses

19. ## Math

What amount must be set aside now to generate payments of \$30,000 at the beginning of each year for the next 13 years if money is worth 5.93%, compounded annually? (Round your answer to the nearest cent.)

20. ## Math

why is 1.6666666667 an irrational number? this was my answer to a question, and you also have to explain why your answer is an irrational number. an irrational number is "any real number that can not be written and the quotient of two number" but it can?

21. ## geometry

the measure of each exterior angle of a regular pentagon is ____ the measure of each exterior angle of a regular nonagon greater than less than equal to** If i'm wrong can you please explain to me why i'm wrong?

22. ## Geometry

The midpoint of Line Segment AB is (2,-9). The coordinates of one endpoint are A(4,10). Find the coordinates of endpoint B. Can someone please check my work and tell me if my answer is correct. Step 1: 2x-9= 4x+10 2x-9= 10 2x= 1 Step 2: AB= 2x-9 =2(1)-9

23. ## Math

For the following geometric sequence find the recursive formula and the 5th term in the sequence. In your final answer, include all of your work. {-4, 12, -36, ...}

24. ## Chemistry

1.When 5 grams of wood burns completely and 15 grams of oxygen, 10 grams of water vapor and some carbon dioxide are given off. (How many grams of carbon dioxide would be produced in this example?) I need help with the question in parentheses. I have the

25. ## English

I’m at the tourist centre in Boston the speakers tone can best be described as

26. ## Chemistry

The pesticide DDT (C14H9Cl5)... Express these concentrations in ppm and in milimoles per liter. Orchard - Sample size: 250.0mL Mass of DDT: 0.030 mg Residential - Sample size: 1.750 L Mass of DDT: 0.035 mg Residential After a Storm - Sample size: 50.0 mL

27. ## history

Which accurately describes battle achievements of Alexander the Great? He defeated the Roman Empire in Egypt, founded the city of Cairo, and ordered the preservation of King Tutankhamun artifacts. He defeated the Persian Empire in Egypt and founded the

28. ## Statistics and Probability

A ticket in a typical lottery like Lotto 6/49 is usually \$2. The probability of winning Lotto 6/49 is 1 in 13,983,816. The payoffs (jackpots) are usually in excess of \$1 million. Suppose that you buy one ticket for \$2 and the jackpot is \$1 million. What is

29. ## English

determine whether the underlined conjunctions in the following sentences are coordinating or correlative by choosing the letters A(coordinating) or B(correlative) Each of the twelve Federal Reserve district banks is also authorized to dispose of unusable

30. ## pre-calculus math

A polynomial f(x) with real coefficients and leading coefficient 1 has the given zeros and degree. Express f(x) as a product of linear and/or quadratic polynomials with real coefficients that are irreducible over . 3, −3 − 2i; degree 3

31. ## MATH

Use a fractional exponent to write the expression the fourth root of 81 raised to the ninth power

32. ## Social studies

What were some issues on which Hamilton and Jefferson disagreed? Select all that apply □ the role of the federal government □ how to structure judiciary □ imposition of taxes □ how to structure a banking system

33. ## World History

Following the deaths of Cleopatra and Mark Antony, Egypt was no longer a sovereign nation and became occupied by Rome (1). Roman law was imposed on Egypt, and it was split up into smaller provinces under Roman governors and prefects (2). Egypt became the

34. ## Social Studies

Scientists classify native people living in the Americas as having lived during one of four time periods. Which shows the correct order in which these time periods occurred?? A- Woodland, Mississippian, Paleo-Indian, Archaic B- Mississippian, Paleo-Indian,

35. ## Math

Evaluate the integral from [sqrt(pi/2), sqrt(pi)] of x^3*cos(x^2) by first making a substitution and then using integration by parts. I let u = x^2 and du= 2x dx but then it doesn't equal that in the equation?

36. ## Math

what is the prime factorization for 40

37. ## Math

Choose the correct justification to get to line 3: -21 - 51x < 1 - 62x.

38. ## social studies

Mesoptomia climate was

39. ## History

1. La salle had conflicts with which of the following groups of American Indians? Hasinai Caddo Apache Karankawa

40. ## Math

a) Find the zeros of the function. d) Find the domain. e) Find the range. a) none d) (-infinity, ﻿0﻿) ﻿U﻿﻿﻿ (2,infinity) e) (0,﻿ infinity) Is this right?

41. ## Earth Science

Minerals are classified into groups based on _______. Characteristics?

42. ## tourism and hospitality

What percentage of the england's income is generated from tourism?

43. ## Math

1.What is the sum of 5/6 + 2/3? (1 point) A. 1 1/3 B. 1 1/2* C. 1 2/3 D. 1 3/4 2. Sylvia has 6 1/2 boxes of chocolate to share at a family picnic. If she gives each person1/3

44. ## ss .

1 ' Africa's highest point, or the place with the greatest elevation is A: Victoria falls B: Lake Assal C: Mount Kenya D:Mount Kilimanjaro *** 2 ' Southern and Eastern Africa tends to be drier and cooler than West and Central Africa because Southern and

45. ## science

If a man weighs 194 pounds and is 69 inches tall where is his center of gravity?

46. ## Physics

A 170 N block rests on a table.The suspended mass has a weight of 52N. What is the magnitude of the minimum force of static friction required to hold both blocks at rest? What minimum coefficient of static friction is required to ensure that both blocks

47. ## Physical Chemistry

One potential problem with using molarity to express concentration is that molarity is temperature dependent. If you make a 1.000 M solution of aqueous HCl at 25 degrees celsius, what would the molarity of this solution become if the temperature of the

48. ## Social Studies

Since Canada’s labor force growth is made up of 70% immigrants and is projected to rise to 100%, you might best speculate that Canada’s government has a(n) ______________ policy. A. anti-immigration B. pro immigration C. Constitutional ** D. democratic

49. ## Physics

You are hanging onto the end of a long rope, the other end of which is attached to a Coast Guard helicopter. Model yourself as a particle of mass M = 52.8 kg with a diameter equal to 0.540 m. The density of the air is ρ = 1.29 kg/m3. Assume the drag

50. ## chemistry

A cylinder with a movable piston contains 2.00 g of helium, He, at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the

51. ## algebra

Solve the following equation for p: 5s - 3p = fp + 12

52. ## Health and PE

Which of the following plays a role in determining a persons weight? select all that apply A:heredity. B:activity level. C:body mass index (BMI). D:body composition. I think the answers are B, C, and D. Thank you.

53. ## alg

which of the following is a solution to the equation y = 3x - 1 A.(4,1) B.(2,5) C.(4,3) D.(0,-3) Answer: A

54. ## Chemistry Lab

Im preparing my report for Synthesis of Alum chemistry lab. Need help with these 2 questions: 1-What other cations besides aluminum can be used to make alum crystals? Explain 2-Why we need to add sulfuric acid slowly to the solution as opposed to pouring

55. ## social studies

which historical event was the most important in forming the character of modern germany? A:industrial revolution B:protestant reformation C:WW2 D:enlightenment

56. ## Chemistry

Is cl2 or F2 less volatile? Cl2 is less volatile because it has more intermolecular forces and therefore has a higher boiling point. Is this right?

57. ## history

Which best describes the Assyrian Empire’s impact on the Mesopotamia region? The Assyrians were the last known hunter-gatherer group in Mesopotamia. The Assyrians attacked and killed thousands of Muslims in Egypt, Iran, and Syria. The Assyrians attacked

58. ## Math

What is the repeating decimal 0.282282282 as a fraction in simplest form? 141141141/5000000000*

59. ## Trigonometry

Sketch the graph of the function (Include two full periods. Find one complete cycle. y=10cos πx/6

60. ## algebra 2

by graphing the system of constraints find the values of x and y that minimizes the objective function x+2y>8 x>2 y>0 >=greater than or equal to my answer was 0,10 am i right?

61. ## Trigonometry

Sketch the graph of the function (Include two full periods. Find one complete cycle. Show your work. y=sin4x

The regular price of a chair is \$895. If you purchase the chair at a 25% discount and then pay 6% sales tax, what is the final cost of the chair? I don't get how to set up this problem

63. ## Math

How many ounces of 1% antifreeze solution must be added to 100 ounces of 40% antifreeze solution to obtain a 16% antifreeze solution? how do I set this equation up?

64. ## algebra

7+8 2-394-2)2

65. ## history

Which most accurately describes the structure of the Roman government when it was a republic? A: The Roman government was a dictatorship in which an emperor ruled by divine right. B: The Roman government consisted of two consuls and the senate. C: The

66. ## MATH

Use a property of rational exponent to simplify this equation (C^6) ^7

67. ## Social studies

In his farewell address, what did Washington say about the U.S. forming alliances with specific European countires? A) it would be seen as a sign of disrespect B) other countires might also seek to form alliances***** C) it might put peace and prosperity

68. ## Statistics

Williams, Dunsiger, Jennings, and Marcus (2012) conducted a study to test how enhanced mood during exercise can increase the likelihood of physical activity in the future. They reported that at 6 months of physical activity, mood scores (rated on a scale

69. ## Chemistry

Balance the following net iconic reactions, and identify which elements are oxidized and which are reduced: a. MnO4^- (aq) + S^2- (aq) --> MnO2(s) + S(s) b. IO3^- (aq) + I^- (aq) --> I2(s) c. Mn^2+ (aq) + BiO3^- (aq) --> MnO4^- (aq) + Bi^3+ (aq)

70. ## English

1. Each year, people die from second hand smoke. 2. Each year, people die from second hand smoking. ---------------------------- Which one is okay? Are both expressions acceptable? Which one is commonly used, 'secondhand smoke' or 'secondhand smoking'?

71. ## English

1. The book was discovered in a used bookstore in Chicago. 2. The book was discovered in a secondhand bookstore in Chicago. 3. I found a rare book at a used bookstore. 4. I found a rare book at a secondhand bookstore. ----------------------------- In each

72. ## math

Multiply 2/3 and 6/7 A. 4/7 B. 4/21 C. 12/21 D. 3/7 PLEASE HELP if you could please tell me all the answers for this mixed numbers practice if u know them

asked by I really hate school
73. ## English

1. At nine, the buses will depart for Lorca Beach. 2. At nine, the buses will leave for Lorca Beach. 3. At nine, the buses will set out for Lorca Beach. 4. At nine, the buses will start for Lorca Beach. 5. At nine, the buses will ____ ____ Lorca Beach.

74. ## math intergers and algebraic exressions

hi mrs sue how are you i need help with my math unit test i really need help what is the solution to -55+q=7 my answer is a

75. ## Physical Chemistry

Your hot tub has overheated to a very uncomfortable 48 degrees C. If your hot tub contains 402 L of hot water, what mass of ice at -5 degrees C would you need to add to your hot tub to bring the temperature down to a more comfortable 36 degrees C?

77. ## Cryptography

Problem 1. (25 points) Let p be a prime and g be a generator of the multiplicative group Zâˆ—p of integers modulo p, (note that Fâˆ—p is also commonly used to denote this group, but we will stick with Zâˆ—p). Let Î» be the bit length of p.

78. ## 1 Out Of 100 Math Trick HELP PLEASE!!!

1. Choose a number between 1 and 100. 2. Multiply the number by 5. 3. Add 15 to the number. 4. Divide the number by 5. 5. Subtract the original number. How does this work, please help!

79. ## tourism and hospitality

what is the economic multiplier for the UK?

80. ## physics

To haul a boat out of the water for the winter, a worker at the storage facility uses a wide strap with cables operating at the same angle (measured from the horizontal) on either side of the boat. Determine the tension in each cable if the boat has a mass

81. ## Government

What are the countries that have a democracy in the Middle East? Just need source's

82. ## geography

What is an informal democracy and in what way in the Middle East?

Krystal bought a refrigerator from a rental center for \$1,050. She makes 16 monthly payments of \$112.75 with her credit card. The rental center charges \$1.25 for every purchase made with a credit card. What is the total cost of the refrigerator? My answer

Sharon purchased a sprinkler system for \$1,950 using a six-month deferred payment plan. The interest rate after the introductory period is 23.99%. No down payment is required, but there is a minimum monthly payment of \$25. What is the balance at the

85. ## qwertyuik

An individual has a transition intensity of mortality for the next 10 years of μs=0.01s per annum (where s is the number of years from today). Calculate the probability (to 3 decimal places) that they will survive for the next 10 years

86. ## Algebra

What do A & B stand for in algebra can some one please explain this to me because I'm really confused:/

87. ## Math

Solve the integral of (x*e^2x)/(1+2x)^2 by first using u substitution and then use integration by parts. I am very confused on how to do u-substitution with this because no mattter what I let u be equal to the du never comes out to be anything in the

88. ## Math

Solve the integral from [0,pi] of x*sinx*cosx*dx I don't understand how to solve this problem because if I let u =x and du =1 and dv=sinx*cosx, I can't find v. How do you solve this?

89. ## Math

Evaluate the integral of x*ln(1+x) dx by first making a substitution and then using integration by parts. I let u=1+x and du = dx but then ln(u) du can't integrate to anything?

90. ## Math

Evaluate the integral of (e^2x)*sin^3 x dx I let u = e^2x, du = (1/2)e^2x dx v= (-1/3)cos^3 x , dv =sin^3 x dx When I used integration by parts and solved it all out I got: (37/36)intgral of (e^2x)*sin^3 x dx = (-1/3)(e^2x)*cos^3 x + (1/18)(e^2x)*sin^3 x

91. ## tourism and hospitality

Is the economic impact in England positive or negative?

92. ## math

which digit makes 345 blank divisible by 2

93. ## Math

what number is a prime 4 13 26 15