# Questions Asked onMay 15, 2020

1. ## mathematics

A chunk is named after the number of squares it contains, or sometimes by its shape. For example, all the dark grey chunks are called 4-chunks and one of them is a 2 by 2 chunk. The value of a chunk is the sum of the numbers on its squares. For example,

2. ## Science

Study the scenario. Avery shakes one end of a spring side to side. The wave travels from her end of the spring to the opposite end of the spring. Which of the following choices best describes the type of wave generated in the spring? It is a transverse

3. ## science

Study the scenario. A match is lit in an isolated system. The match releases 40 J of heat energy. Which choice correctly describes what happens to the total energy of the system over time? The total energy of the isolated system eventually becomes zero

4. ## science

Which of the following choices correctly describes the behavior of the sound wave as it moves from metal to air? The sound wave does not change speed, but refracts. The wavelength decreases while frequency increases. The sound wave slows down and refracts.

5. ## science

Which choice most accurately defines resistance and voltage of a circuit? Resistance can be defined as the potential difference between two points in a circuit, while voltage is the amount of electrons moving through a point in a circuit every second.

6. ## science

A tuning fork vibrating at 200 Hz is placed under water. If sound travels 1500 m/s through water, what is the wavelength of this sound wave? 300,000 m 7.5 m 0.13 m 1300 m

7. ## history

How was the Marshall Plan designed to restore Europe in ways that discouraged the advance of Communism in Eastern Europe? Select all that apply. a. It included measures to revive bombed-out agricultural areas, helping reverse a postwar famine and earning

8. ## science

According to Faraday’s law, the voltage generated when a magnet is pushed through a coil is dependent on several variables. In addition to the rate of change of the magnetic field, which of the following choices affects the induced voltage? a) number of

9. ## science

Electromagnetic generators generate electricity. Events that occur to generate electricity are listed below. What is the correct order of events? A. The initially stationary electrons in the wire experience a force. B. The conducting coil rotates. C. The

10. ## Math

Which of the following are categorical data? A.numbers of inches of rain B.types of drinks C.lengths of movies (in minutes) D.weights of students Which best describes a statistical question? A.a question that contains numbers B.a question about numbers C.a

11. ## History

Which explains how the Cold War affected politics in Nicaragua in the 1980s? A- The country was blockaded by NATO because of its alliance with the Soviet Union. B- The United States armed Nicaraguan Contras against the Socialist government in a civil war.

12. ## math

a lock has a code of 5 numbers between 1 and 20 . If no numbers in the code are allowed to repeat, how many different codes could be made? so it is not 20C5 so can you tell me exactly what the answer is? I can try to figure out the other 9 questions from

13. ## mathematics

A motel has ten rooms, all located on the same side of a single corridor and numbered 1 to 10 in numerical order. The motel always randomly allocates rooms to its guests. There are no other guests besides those mentioned. a) Friends Molly and Polly have

15. ## Science

Which type of tectonic plate boundary is found between most of the Indian- Australian Plate and the Eurasian Plate? Please use ESRT reference table.

16. ## science

In the Galapagos Islands, Charles Darwin found many different species of finches (a type of bird) that seemed closely related. He proposed that the birds had all evolved from a common ancestor. Match the bird beaks below to the most likely food source.

17. ## Science

Calculate by dividing mass by volume

18. ## math

James has to choose his options in his final year at school. He must choose one subject from each of five different option groups. In the first group, there are six subjects to choose from. In the second group, there are four subjects to choose from. In

19. ## calculus

The Average value of f(x)=25−x^2 on the interval [0,1] is 74/3 Find a value c in the interval [0,1] such that f(c) is equal to the average value?

20. ## math

A farmer wants to make a rectangular pen for his chickens. He has 1200 m of fencing. He will use one side of his barn for the pen. What dimensions will give the maximum area? What is the maximum area?

21. ## math

On Binary Island, the locals have only two letters in their alphabet: A and B. Sequences of these letters are called strings. The number of letters in a string is called its length. If a string has length n, then we call it an n-string. For example,

22. ## chemistry

Consider a solution of that is 0.0020 M K2SO4. Calculate the activity coefficient of K+.

23. ## mathematics

If figure 5.17 to the right ABCD is a rectangle.if m (angle BDC)=54 degree then find m (angle ABD) and m (angle CBD).

24. ## Statistics

Each phone call by Ali consumes an amount of time that follows an exponential distribution with mean 5 minutes. The number of different phone calls Ali makes on any given day has a Poisson distribution with mean 3. Assume that a single call always falls

25. ## probability

A committee must be formed with 4 teachers and 4 students. If there are 6 teachers to choose from, and 12 students, how many different ways could the committee be made? gracias

26. ## Mathematics

A toy rocket is launched from a 3m platform, at 8.1 m/s. The height of the rocket is modelled by the equation h= -4.9t^2 + 8.1t + 3, where h is the height, in metres, above the ground and t is the time, in seconds. 1. After how many seconds will the rocket

27. ## English

He underwent a left ankle block, Esmarch tourniquet was used just above his ankle. is this a FRAGMENT COMMA SLICE COMPLETE SENTECE or RUN ON SENTENCE

28. ## math

A survey of high school juniors found that 82% of students plan on attending college. If you pick three students at random, what is the probability that at least two plan on attending college? Round to the nearest percent

29. ## chemistry

Calculate the molar solubility of AgCl in a 0.15 M solution of NH3(aq). (Ksp(AgCl) = 1.6 x 10^-10; Kf(Ag(NH3)2+) = 1.5 x 10^7)

30. ## Physics

An electric iron, which draws a current of 5.0 A, is connected to a 240 Vrms supply. Calculate the energy consumed if it is used for 6 minutes. A. 432.0 kJ B. 375.0 kJ C. 17.3 kJ D. 7.2 kJ?

32. ## History

Which explains why American and British intelligence agencies sponsored a coup to overthrow Iranian Prime Minister Mohammad Mosaddeq in 1953? A- Mosaddeq ruled Iran through repression and terror, which were contrary to US beliefs in human rights. B-

33. ## History

What are petro-economics? A- the economics of countries who have quarries of marble and granite B- theoretical economic systems that are used as modern business models C- the industrial outputs of a nation over decades in and up and down market D- the

34. ## science

it is in thermal equilibrium and the temperature of the object increases it is in thermal equilibrium and temperature of the object decreases it is not in thermal equilibrium and the temperature of the object does not change it is in thermal equilibrium

35. ## science

Light waves are traveling through glass. If the wavelength of some part of the light wave is 4 x 10-7 m and the frequency of that light is 5 x 1014 Hz, what is the speed of light through the glass? 8 x 10-22 m/s 1 x 107 m/s 1.25 x 1021 m/s 2 x 108 m/s

36. ## Math

A hydraulic press has a ram of 30co diameter and plunger and a plunger of 4.5 cm diameter find the wight lifted by the hydraulic press when the force applied at the plunger is 500N?

37. ## calculus

Find a function f and a number a such that x 2+∫ (f(t)/t^(5)) dt=6x^(−2) a f(x)= a=

38. ## calculus

Provide the identity. Show all proper work. 2 sin xcos^3x + 2 sin^3 xcosx = sin(2x)

39. ## Computers

Your boss calls you from the road. She is trying to connect to the local hotel guest wireless network but there is a yellow shield displayed beside that particular wireless selection. She is asking you what that shield means. What do you tell her?

40. ## chemistry

The Ksp for silver(I) phosphate is 1.8 × 10^–18. Determine the silver ion concentration in a saturated solution of silver(I) phosphate

41. ## Chemistry

The method of standard additions was used to determine nitrite in a soil sample. A 1.00-mL portions of the soil extract sample was transferred to four 25-mL volumetric flasks. To each flask, increment volumes of a 1.00 x10-3M nitrite wasadded according to

42. ## Physics

The coefficient of friction sliding on wood is 0.30 what is the force that is needed to slide a wooden block weighing 500 N across a horizontal surface

43. ## math

Damien has designed a sculpture to enter in an art show. The sculpture is a composite shape made from two square pyramids and is covered in pieces of mosaic tile. 22in 16in and 30in What is the area of the sculpture that is covered in mosaic tile? A.

44. ## science

what is a cladogram? explain how a scientist would use DNA or protein sequences taken from three different organisms to construct a cladogram. I'm pretty bad at short answer questions, and I have to get done with this test TODAY!!!! pls help me!!!!!!!!!!!!

45. ## pre calc

fill out the equation of a parabola with the focus of (-2,3) and the directrix is x=4

3,7,11...,31

47. ## algebra

I'm stumped on my homework. It's Linear, Quadratic, and Exponential. I need to figure out which function I should use. The table is: 0,1 1,1.2 2,1.44, 3,1.728 4,2.0736.

48. ## physics

Hot Steel; Cold Ice: A 36.0 g block of ice sits at −50.0 °C under 1.00 atm constant pressure in a perfectly insulated container. A 225 g mass of stainless steel at 125 °C is dropped onto the ice, and the system is closed. When the system reaches

49. ## science

1,Which renewable energy sources did you use in your car? 2. What are the advantages of using renewable energy sources instead of fossil fuels? 3.Which renewable energy sources did you not include in your designs? Why didn’t you use them?

50. ## Intro to computers

You have a Windows 2000 computer that has no built-in firewall so you were looking for third-party firewall to install which of these selections below will accommodate this? a) CC Cleaner b) zonealarm c) Microsoft Security Essentials or D) Malwarebytes

51. ## Math

1. Tyler bought a pencil holder in the shape of a triangle prism, as a gag gift for his friend’s birthday 1a) He fills the pencil holder with sand before he wraps it to make it feel like a heavy, expensive gift. How much sand will he need to “borrow”

52. ## History

How did Latin America's economy change after independence? 1. Latin American countries exported farm products, minerals, and other resources to Spain and Portugal. 2. Latin America's economy did not change 3. Latin American nations were free to trade with

53. ## Algebra

Create a table for different values of x as the best solutoin to the equation 2x = 1000, with decimal precision.

54. ## math

2,31/20 and it wants the remainders

55. ## physics

Hot Steel; Cold Ice: A 36.0 g block of ice sits at −50.0 °C under 1.00 atm constant pressure in a perfectly insulated container. A 225 g mass of stainless steel at 125 °C is dropped onto the ice, and the system is closed. When the system reaches

56. ## Math

Which scenario can be modeled by a linear function? A - The area of a circle A can be determined using length of the diameter of the circle D B - the number of gallons of water used W is based on the number of minutes T a fire house is turned on if the

57. ## probability

A committee must be formed with 4 teachers and 4 students. If there are 6 teachers to choose from, and 12 students, how many different ways could the committee be made? so if the answer is (6,4) *(12,4) do i multiply these?

58. ## math

a lock has a code of 5 numbers between 1 and 20 . If no numbers in the code are allowed to repeat, how many different codes could be made? so is the answer of 20C5 then 15,504?

59. ## chem

If the density of solid iron is 7.87 g/cm3 , what is the packing efficiency of Fe if it adopts a body‑centered cubic unit cell? The molar mass of Fe is 55.847 g/mol .

60. ## mathematics

Igor is flying a kite. The kite is 170m off of the ground. The string of the kite and the line parallel to the ground form an angle of 68 degrees. Igor is holding the kite 1 m off of the ground. Approximately how much string has Igor let out?

61. ## Math

sin^- 1 (2sin pi/12 * cos pi/12)

62. ## computers

uestion 20 (5 points) Your mom wants to start using some type of cloud storage so that she can access some of her important business files from anywhere without having to remote into another machine. What do you suggest? Question 20 options: a) TeamViewer

63. ## Mathematics

A salesman receives a basic salary of#750,000 a year with a commission of 6% of the value of goods sold and a car allowance of #45 per km. (a) Find the total amount he received in a year in which he sells goods worth #9,373,000 and travels 10,000 km. (b)

64. ## Computers

You are trying to access the Wi-Fi network at a coffee shop. What protocol will this type of wireless networking most likely use?

65. ## chemistry

Calculate the pH of the solution resulting from the addition of 75.0 mL of 0.15 M KOH to 35.0 mL of 0.20 M HCN (Ka(HCN) = 4.9 × 10^–10)

66. ## Mathematics

If the third term of ap is 4 and ninth term of ap is -8 then which term of ap is zero

67. ## algebra

solve 9*8^x=6

68. ## statistics

A class consists of 10 girls and 15 boys. 2 girls and 6 boys are left-handed. One Student is selected at random from this class, determine the probability that the selected student is:

69. ## Physics

a particle is projected at angle tita to the horizontal with initial velocity u.if the horizontal distance and maximum height reached are 20m and 10m respectively. find the value of tita and u

70. ## Science

Evidence of a chemicam chance includes

71. ## Science

Which image exclusively represents the príncipe of radiation?

72. ## algebra

the quantity y is partly constant and partly varies inversely as the square of x when y=6 what is y when x=10

73. ## Mathematics

A small pouch contains 8 black marbles 5 white marbles and 12 red marbles Find the probability of picking a red then a black marble if you do not replace the first marble

74. ## math

Little Tommy built a train out of blocks. One-third of the train was made with blue blocks, 2/5 of the train was made with red blocks and the remaining eight blocks were yellow.

75. ## Physics

a 30 kg box is placed on a 40 degree inclined plane the coefficient of friction is 0.2 at what rate does the box accelerate down the incline

76. ## mathematics

Which cannot be represented by a linear function? The cost of a buffet is \$7.25 per person. The population has an annual growth rate of 1.8%. The height of a plant grows a quarter-inch per week. A seahorse travels a distance of one foot per minute.

77. ## Social studies

What aspect of physical geography most influence of development of city states in Greece

78. ## Social studies

1.Read the quote below from a northern schoolteacher and use the information to help you answer the question. “Wishing to work where there was the most need – there are so many places where nothing has been done for the freedmen, and where they are

79. ## Physics

Two objects (16 kg and 2 kg ) are released simultaneously on a 6 meter long frictionless inclined plane that makes an angle of 30 degrees with the horizontal which one reaches the bottom of the hill at a greater speed

80. ## MATH

write the fraction as a percent if necessary round to the nearest tenth of a percent 8/12 75% 80% 66.7% 33.3%

81. ## Algebra

Consider the algebraic expression 5 (Evaluate the expression when a = 2.5. show your work) I NEED HELP, school is over next week and these are for my test corrections, Please help.

82. ## Mathematics

12 dogs and in the park two of them are chasing a ball of fraction of dogs are chasing a ball

83. ## chemistry

There are 5g of 131I left after 40.35 days. How many grams were in the original sample if its half-life is 8.07 days? What is the half life of a radioisotope if you started with 1 gram and 0.250 grams is left after 6 days? im not looking for a free answer,

84. ## Math

An open-topped box can be created by cutting congruent squares from each of the four corners of a piece of cardboard that has dimensions of 30 cm by 40 cm. Determine the dimensions of the squares that must be cut out to create the box with a volume of 1872

85. ## Music

Mozart worked to develop many sonatas. What is one part of his sonatas? A. Climax B. Exposition C. Cadence D. Appendix I don’t know the answer and I need help soon, I think it might be A but I don’t know.

86. ## Geometry

Gandalf took a piece of paper 5'' by 12'' and made a cylindrical can with it. He then put a top and bottom on the can and computed the can's surface area. Frodo did the same with another piece of 5'' by 12'' paper getting a different solution. Compute the

87. ## mathematics

Given the equation y = 3x − 4, what is the value of y when x = 4?

88. ## algebra

for -(-3 + 4) distribute the negative outside the parentheses to both the -3 and the 4

89. ## social studies

which of the following statements is false A.the refining of oil into gasoline increased the production of automobiles in the U.S B.in 1916 there were about 200,000cars in Texas and 1.5 million by 1936. C.the great depression nearly eliminated all

90. ## Algebra

A student earned 81, 71, 78, 69 - hat do they need to score on the next test to have an average of 80.

91. ## Algebra

Write an explicit formula for the following sequence a1=1875,r=0.2

92. ## mathematics

You and your friend enjoy riding your bicycles. Today is a beautiful sunny day, so the two of you are taking a long ride out in the country side. Leaving your home in Sunshine, you ride 6 miles due west to the town of Happyville, where you turn south and

93. ## Calculus

for function f(x)=4x-2x^3 a.) Find the general formula for the slope of the tangent line using the definition of derivative. b.) Find the slope at x=1

94. ## Mathematics - Finance

A small company set up a new investment project on 1 January 2017. The initial investment on that date was £2.5 million with a further £2 million required after nine months, on 1 October 2017. It is expected that from 1 January 2019 to 1 January 2032

95. ## Albebra

I divert descended and a constant rate of 15.81 feet every three minutes

96. ## Chemistry

How many total atoms are in 0.560 g of P₂O₅?

97. ## probability

a lock has a code of 5 numbers between 1 and 20 . If no numbers in the code are allowed to repeat, how many different codes could be made? Thank you

98. ## Social studies

1. What belief united the Progressive movement? A) that society's problems could be solved B) that education needed reform C) that there should be a federal income tax D) that political bosses should not hold office 2. What was the main reason for the

99. ## science

Hot Steel; Cold Ice: A 36.0 g block of ice sits at −50.0 °C under 1.00 atm constant pressure in a perfectly insulated container. A 225 g mass of stainless steel at 125 °C is dropped onto the ice, and the system is closed. When the system reaches

100. ## Mathematics

What is 3^7 x -9^2?

101. ## Probability

if 80 are people donating blood, what is the expected number of people with type O blood if those who have O blood are 26%?

102. ## Math

Given f(x) = (x+2)/(x+4) and g(x) = (x+2)/(x-2) find when f(x)>=g(x) I've plugged the reciprocals into Desmos, but I'm having difficulty I'm also unsure of what to do with the interval chart.

103. ## Calculus

The definite integral of x*(sqrt x^2-400) with an upper limit of 29 and lower limit of 20. After using U-substitution and plugging in the limits I keep getting 32.078 which is wrong, and apparently the right answer is 3087. What am I doing wrong?!?! Please

104. ## English

An effective thesis statement should be _[blank]_. Which option best completes the sentence? -short and simple -focused and specific -long and complex -general and universal

105. ## Algebra

The profit in a company is \$3 million. Set up two functions that indicate the profit y \$ after x years if the profit is expected to increase by 10% each year and decrease by 5% each year.

106. ## math

An Auto mechanic charges \$45 for a house call plus \$30 per hour for any work done For one cilent's house call the mechanic charges a total of T dollars Which equation represents this situation where h is the number of hours of work done A - T = 30h +45 B -

107. ## science

In order for gravitational potential energy to be stored, there must be __________. an object positioned at some height outside a gravitational field an object positioned at a height of 0 in a gravitational field an object in motion an object positioned at

108. ## Math

A chef orders carrots and celery in bulk the chef orders 2.2lb more carrots than celery the two orders weigh 10.8 lb combined what is the weight in pounds of the carrots

109. ## Math

An Auto mechanic charges \$45 for a house call plus \$30 per hour for any work done For one cilent's house call the mechanic charges a total of T dollars Which equation represents this situation where h is the number of hours of work done A - T = 30h +45 B -

110. ## Mathematics

N(t)= 30t^2-31t+-,2

111. ## World Studies

Who are the most important gods in Hinduism? A. Brahma, Vishnu, Shiva, and Avatar B. Brahma, Vishnu, and Shiva C.Vishnu, Shiva, and Shakti D.Rudra and Brahma I think its b

112. ## chem

The radius of a single atom of a generic element X is 179 picometers (pm) and a crystal of X has a unit cell that is body-centered cubic. Calculate the volume of the unit cell.

113. ## Precalculus

A contractor needs to know the height of a building to estimate the cost of a job. From a point 92 feet away from the base of the building, the angle of elevation to the top of the building is found to be 40°32’. Find the height of the building. Round

114. ## English

Sentences adjectives or adverbs? 1) why did you arrive so early 2) try to draw the line straight

115. ## science

A physician calls and says that all the blood glucose results for his patients- from whom blood is drawn in his office and then sent to the laboratory – show low blood sugar/glucose. The physician states that there must be a problem with the laboratory

116. ## Pre-Algebra

I'm so confused. I keep trying to do this on paper, but I keep coming up with different answers. Can you please walk me through this? The question is asking me to find the polynomial that goes with the model. It gives me one large white square, two

117. ## Math

Explain how you determine the location of a horizontal asypmtote from a rational function

118. ## Calculus

For the function g(x)=radical 5-x Find the general formula for the instantaneous velocity using the definition of derivative

119. ## Calculus

Find the least amount of lumber that will be needed to form an open box with a square base and a capacity of 32m^2

120. ## mathematics

what is the exact value of 1/sin30°-1/tan60°cos°?

121. ## chemistry

A total of 506 J of heat are added to 50.0 g of water initially at 15.0 °C. What is the final temperature of the water? The specific heat of liquid water is 4.184 J/g °C.

122. ## Physics

You are stopped at the end of the merge lane at the entrance to a motorway because traffic is dense with cars at a distance of 200m from each other with no larger gaps in sight. They are all travelling at a steady 90 km/h. You have no choice but to join

123. ## physics

Find the acceleration of a box being pulled with an applied force of 320.0N at an angle of 30° from the horizontal. The µk between the floor and the box is 0.30 the box weighs 80 kg