# Questions Asked onSeptember 9, 2019

1. ## Maths

Functions f and g are defined by f(x)=4x-2k g(x)=9/(2-x) i.Find the values of k for which the equation fg(x)=x has two equal roots.

2. ## Science

Which items are TRUE about minerals? Select three correct answers. A. rocks are the components that make up minerals. B. minerals are made of one element or one compound of elements. C. observing one property is often the best way to identify minerals. D.

3. ## Health, Fitness, and Nutrition

Check my answers please 1. The terms "aerobic fitness" and "cardio-respiratory fitness" mean the same thing. True* False 2. Duration refers to the amount of time of your aerobic session. True* False 3. Frequency refers to how hard you exercise. True False*

4. ## Chemistry

How much heat (energy) is required to convert 18.0 g (1.00 mole) of ice at -5.00oC to steam at a temperature 111oC? (6)

5. ## Math

You are baking chocolate chip cookies. One batch makes 4 dozen big cookies. The recipe calls for 3/4 cup brown sugar. How many cups of brown sugar would you need if you wanted to make 11 dozen cookies.

6. ## math

For the substitution method, is there a right equation to pick from the set and rewrite it? My problem is 3x-2y=1 2x+4y=1 I chose 2x+4y=2 and came up with x=1-2y which I will later plug into 3x-2y=1. Or do I have to choose 3x-2y=1? My tactic is picking the

7. ## Math

Scientific notation for .0026

8. ## Algebra 1

Victoria weighs 5/7 as much as Mario. Victoria weighs 125lb. How much does Mario weigh

9. ## math

A train traveling between two stations. The train starts from rest and accelerates uniformly for 150 seconds. It then travels at a constant speed for 300 seconds and finally decelerates uniformly for 200 seconds. Given that the distance between the two

10. ## Math

What proportion of observations from the standard normal distribution are greater that 2.88?

11. ## Science

A truck hits a brick wall with force of 100000 kg•m/s2. The truck comes to a stop in 0.5 s. Calculate the impulse the truck experienced

12. ## physics

A hollow metal sphere of mass 5kg is tied to the bottom of the sea-bed by a rope. The tension or force in the rope is 60 N. Calculate the volume of the sphere.?

13. ## Language

Which sentence is written correctly? A ,Sometimes when the weather, is especially cold we get snow as early as October 31. B, Sometimes when the weather is especially cold we get snow, as early as, October 31 C, Sometimes, when the weather is especially

14. ## Psychology

Which of the following is/are possible to quantify using this data: red, red, green, blue, blue, blue, yellow, orange? A) Mean B) Median C) Mode D) Mean and Median E) None of the above

15. ## Psychology

Which of the following is/are most likely to have statistical significance? Check all that apply. A) A teacher discovers that 6 out of her 7 classes performed better on a test while listening to softly-played classical music. B) 99 out of 100 people

16. ## Psychology

Scientists believe their results to be statistically significant if no more than __________ of the results are due to chance. A) 1 in 1000 B) 1 in 100 C) 5 in 25 D) 1 in 20 E) 1 in 3

17. ## Psychology

Are the results of the following study statistically significant? If so, why? A psychologist performs an experiment to see if she could condition a group of third graders to associate doing math with the positive feeling of eating sugar. For a one

18. ## Math

Triangle ABC has vertices A(–4,–2), B(–1,3), and C(5,0). Triangle ABC is rotated 180° counterclockwise about the origin to form triangle A′B′C′. What are the coordinates of the vertices of the triangle A′B′C′? How could you determine the

19. ## Math

Jason has just finished icing the cake when he walks away his sister steals a piece the stolen piece is one sixth of the whole cake the stolen piece is two thirds covered in icing what fraction of the original cake was not iced

20. ## Math

a SQUARE ROOM HAS AN AREA OF 400 SQUARE FEET. wHAT IS THE SIDE OF THE ROOM?

21. ## Math

One brand of orange juice is sold in four different sizes. Size A The 8 1/2-ounce bottle costs \$0.99. Size B The 18 2/3-ounce bottle costs \$1.49. Size C The 48 1/4-ounce carton costs \$2.49. Size D The 64 3/4-ounce carton costs \$3.75. What is the unit rate

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22. ## Statistics

There are 14 qualified applicants for 3 trainee positions in a fast-food management program. How many different groups of trainees can be selected?

23. ## Earth Science

1. Where are the newest parts of Earth’s crust located? a. on the top of mountains b. at mid-ocean ridges c. at the edges of continents d. on plateaus my answer is c

24. ## algebra 1

A theater group is having a carwash fundraiser.The group can only spend \$34 on soap, which is enough to wash 40 cars. Each car is charged \$5. If c represents the total number of cars washed and p represents the profit, which equation shows the relationship

25. ## American History

I need help for a project and I only have this question left. Please help! How does R.J. Reynolds accomplishments affect the state today?

26. ## physics

Which of the following determine the terminal speed of an object? Choose all that apply. Weight Color Object's density Air density Relative speed between the object and the air Shape/Aerodynamics Surface area encountered by air

27. ## English

On which character traits does the narrator of "The Tell-Tale Heart" pride himself? A. his abilities to lie and steal B. his sneakiness and his fear C. his wit and his confidence D. his intelligence and his patience I think it's either C or D

28. ## Math

What general statement can you use to determine the ordered pairs of the vertices of a figure if it is reflected across the y-axis? A. If a figure is reflected across the y-axis, the x-coordinates of the vertices in the reflection will be the same as those

29. ## Algebra

Using x as the variable, write the equation or inequality that would correctly solve this problem. Question: Carmen needs at least 86 points to pass Karissa's score. Karissa has 631 points. How many points does Carmen have? (there was also some text under

30. ## Mathematics

Hcf of two numbers is 8.one number is between 20 and other number is between 40 and 60.find two numbers.

31. ## Standard deviation

What percentage of the data, distributed normally and with the standard deviation, will fall within 2 standard deviations of the mean? A) 13.5% B) 34% C) 68% D) 95% E) 99%

32. ## Psychology

Which of the following confidence levels are psychologists usually satisfied with to support that their results are not simply due to chance? A) 0.65 or 65% B) 0.75 or 75% C) 0.85 or 85% D) 0.95 or 95% E) 1.00 or 100%

33. ## pre algebra

Jon drew a triangle with coordinates (5, 1), (7, −2) and (3, −1). He drew an image of the triangle with coordinates (5, −1), (7,2), and (3, 1). How did he make the image? A. He translated the original figure 2 units down. B. He translated the

34. ## algebra

molly traveled to the lake and back.It took two hours less time to get there then it did to get back.The average speed on the trip there was 50 mph.The average speed on the way back was 30 mph.How many hours didthe trip there take?

35. ## Math

for this triangle, determine tan A. then determine the measure of angle A. h ttps://upload.wikimedia.org/wikipedia/commons/6/6f/Rtriangle.svg side a is 1.3 side b is 2.5

36. ## history/culture

1. when referring to the auto logical condition of not being able to hear, deaf is written with a little “d” true *** false 2. “Big D” Deaf refers to deaf people who share a language (ASL) and a culture. true false*** 3. You become a member of the

37. ## Social Studies

Would the ease of escape be least important to a terrorist?

38. ## physics

a cat is thrown up in the air at 12 m/s then free falls down a 70 m high cliff. what is its speed before it hits the ground? what is the cat's time falling before it hits the ground? vi= 12 m/s change in y = 70 m a= -9.81 m/s^2 vf= ? t=?

39. ## Math

Laura earns 134,350 per year. Use Laura's income tax rate to determine what her monthly deduction should be.

40. ## Physics

What is the perfect world of Physics known for? I know no air resistance, earthbound, but what else? Also who created it?

41. ## math

How does (5√26)/2 equal 5√(13/2). Need explaining

42. ## Science

K2Cr2O7+H2SO4+Zn-K2SO4+Cr2(SO4)3+ZnSO4+H2O

43. ## math

my mom's class is taking a field trip to the science museum there are 23 students in class and a students admission tickets is 8 how much will the students tickets costs

44. ## Math

-6 +12 over 3-6= 6/9=-3 is this right

45. ## Math

A fuel storage tank is in the shape of an equilateral triangular prism. The prism is 8 feet high and 10 feet long. When the tank is half-full, the depth of the fuel is what? note: I know the only way to find the depth is to cut the triangle in half

46. ## Physics

A flywheel turns at 600 rpm. Compute the angular speed at any point on the wheel and the tangential speed 0.5 m from the centre.

47. ## Chemistry

Metaphorically, how can life on earth be compared to a spaceship???

48. ## Calculus

Suppose that a doesn't equal 0. a) If a.b = a.c, does it follow that b = c? b) If axb = axc does it follow that b = c? c) If a.b = a.c and axb = axc, does it follow that b = c?

49. ## Math

for this triangle, determine tan A. then determine the measure of angle A. h ttps://upload.wikimedia.org/wikipedia/commons/6/6f/Rtriangle.svg side a is 1.3 side b is 2.5 my answer is tan (A)=1.3/2.5 A=27.4744

50. ## math

Three points P, Q and R are on level ground. Q is 240 m from P on bearing of 230°. R is 120 m to the east of P. A) Using a scale of 1 cm to represent 40 m, draw a diagram to show the positions of P,Q and R in the space provided below. B) Determine (i) The

51. ## Statistics

A company's records indicate that 90% are error free,if 8-records are randomly selected, what is the probability that at least 2 records have no errors.

52. ## Statistics

In an intelligence test administered to 1000 children, the average score was 42 and fasting the standard deviation 24.Assuming normal distribution, find the number of children with scores between 30 and 60

53. ## maths

LET THE PROBABILITY FUNCTION ON SET"S"=[a,b,c,d],find probability p(a) if p(b)=1/3,,p(c)=1/6 and p(d)=1/5..?

54. ## math

A ball always bounces three fifth of the height from which it falls. What fraction of its initial height does it rise after the second and third bounce?

55. ## science

if a strong odour is smelt continuously for some time , the sensation of than substance weakens

56. ## Math

In a book store 60 identical books occupied a length of 1.5 meter on a shelf , find the length occupied by 50 such books on a shelf the no of such books needed to completely occupied a shelf that is 80 cm long?

57. ## Science

What is the balance equation of decane

58. ## P H E

Seven Branchs of P H E

59. ## algebra

How can you determine the coordinates of any image that is dilated with the center of dilation at the origin without graphing? Explain your reasoning.

60. ## Maths

The function g is defined by g(x)=2x^2-12x+13 for x>=4. Expalin why g has an inverse.

61. ## Maths

How to sketch the graph of y=f^-1(x)

62. ## Maths

f(x)=2x+1 Sketch in a single diagram the graphs of y=f(x) and y=f^-1(x), making clear relationship between the graphs.

63. ## Math

Logan drew Δ ABC on the coordinate plane, and then reflected the triangle over the y-axis to form Δ A'B'C'. Which statement is not true about these two triangles? A.Δ ABC≅Δ A'B'C' B. The two triangles have the same angle measures. C. The vertices of

64. ## Maths

f(x)=x^2-4x+k for x>=p State the range of f in term of k.

65. ## Maths

f(x)-x^2-4x+k for domain x>=p State the smallest value of p for which f is one-one.

66. ## math

What is the distance between points F(2, 9) and G(4, 14)? Round to the nearest whole number.

67. ## Earth Science

How have phosphate minerals most affected human activity? A. Many people left their homes to seek wealth from phosphate mining in the 1800s. B. Phosphate mining operations have ceased due to environmental impacts.*** C. Using phosphate minerals in

68. ## Georgia history

Which weapon was invented during the woodlands period. a. atlatl b.midden c. clovis point d. bow and arrow... am i right

69. ## English

The climax of “Rikki-tiki-tavi” occurs when

70. ## Language

Beeethoven, Ludwig van. 1770-1827. German composer of Flemish descent, born in Boon, Germany. Taught music by his father and Christian Neefe. Held several positions with royal musicians in Bonn (1783-1792). Studied in Vienna with Mozart, Haydn, and other

-x+16=2x+1

72. ## language arts

compare and contrast Ribbons by Laurence yep and Rikki-Tikki-Tavi by Rudyard Kipling

73. ## Chemistry

John Roger's Stephens left a 3.5 kg iron shovel outside through the winter. The shovel now orange with rust, is rediscovered in the spring. It's mass is 3.7kg. How much oxygen combined with the iron?

74. ## Math

John draws a square on a coordinate plane. Then, he draws an image of the square 3 units to the right of the original square. What is true about the corresponding sides of the original figure and the image?

75. ## chemistry

Consider a mixture of 50% water and 50% of mass ethanol, whose relative density is equal to 0.9138. Get the mass of ethanol contained in 100m3 of mixture.

76. ## Physics

A student stands on a scale in an elevator that is accelerating at -2 m/s2. If the student has a mass of 97 kg, to the nearest newton what is the scale reading?

77. ## global history

What lines measure distance in degrees north and south of the equator?

78. ## Technology

What does a head frame do?

79. ## AP US History

Which did the Middle Colonies and the Southern Colonies have in common? A. Both depended largely on forestry and fishing. B. Both built economies on a strong agricultural base. C. Both had few natural resources and relied on trade. D. Both had many mineral

80. ## algebra

Exponent Basics Quiz Part 2: Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. "Solve 2s3 − 4r2 if r = 1 and s = 5." Is it -35?

81. ## Math

John draws a square on a coordinate plane. Then, he draws an image of the square 3 units to the right of the original square. What is true about the corresponding sides of the original figure and the image? A. The corresponding sides are skew. B. The

82. ## English

Compare and contrast your independent reading selection with one or two other selections you read in this unit. Support your response with at least two pieces of evidence from your independent reading selection. Be sure to get the title and the author of

83. ## Math

The radii and angle substended at the center of circle are given as follow 12cm,40

84. ## geometry

What do you call a duck that steals?

85. ## math

Enter your answer and show all the steps that you use to solve this problem in the space provided. Solve 2 s 3 − 4 r 2 if r = 1 and s = 5 . plz some one help mrs.sue?

86. ## chemistry

what is hydrogen?

87. ## english

Write your analysis then reactions or response to some sentence or thought in the essay, "Where I Lived, and What I Lived For" in this module. You might decide to argue for or against Thoreau's stance, or you might want to apply one of Thoreau's insights

29:30

89. ## Education Technology

In three sentences, identify one Cloud-based application you use regularly and explain how it demonstrates the benefits of Cloud computing. When you have completed the activity, upload the document to the class Drop Box for evaluation.

90. ## Social Studies

What are examples of Alexander the Great’s love of learning that he spread? Could someone point in the direction of some examples? The text I was given does not supply much information.

91. ## math

1. Bella's recipe for a batch of cookies calls for 4 1/2 cups of flour. if she wants to make 2/5 of a batch of cookies how much flour should she use? 2/5 * (4 1/2) = 2/5 * 9/2 = 9/5 = 1 1/5 cups flour 2. A submarine is at an elevation of - 9 4/7 meters. It

92. ## Math

Solve the following word problem for the portion, rate, or base. A medical insurance policy requires Ana to pay the first \$100 of her hospital expense. The insurance company will then pay 60% of the remaining expense. Ana is expecting a short surgical stay

93. ## Math

80% of the students at a college are from in-state. If 4,800 students are from in-state, how many students attend the college? I got 3,840. but I don't think that's right

94. ## Math

Lcm of two numbers is 40.one number is 5 find the other number

95. ## Graphs math

If the mean score on a test is 60, the data are distributed normally, and the standard deviation is 5, what percentage of the test scores will be found between 55 and 60?

96. ## Math

8.47 3 over five I have tried this one and I get 508.2 and its not taking my answer. any help would be appreciated!

97. ## Psychology/math

Which of the following are correct statements about statistical significance? Check all that apply. Statistical significance A) always equates to importance B) requires large data samples C) requires positive research data results D) has consistent results

98. ## Math

ms sue i have a question what is the square root of 5006 help pls im trying to finish my home work while im on the bus thanks.

99. ## chemistry

a gas tank holds 2685 L of propane, C3H8 at 830 mm Hg. What is the volume of the propane at standard pressure

100. ## geography

Which was an effect of the establishment of the European Union? Select the two correct answers. A. Member countries trade freely without trade barriers. B. Citizens can move among nation states to work and study. C. National borders have been erased. D.

101. ## Math

Jared said "7.48 rounds to 7.5 and 7.5 rounds to 8" so 7.48 rounds to a right and explain if Jared's reasoning is correct.

102. ## Calculus

Consider the curve C parametrized by (x, y) = (cos (5t), sin(−4t)), for −π ≤ t ≤ 2pi How would I go about finding how many times the curve is traversed? Also, how would I find out the radius and center of the circle is? I don't need answers I just

103. ## Math

How to determine if the graph shows two quantities that vary directly and how to determine the constant of proportionality?

104. ## Math

P Maria and her family went to a movie they bought two adult tickets for \$8 each and three students tickets for \$5 each day paid with two \$20 bills how much change did they get back?

105. ## Math

Check for reasonableness Jim paid 9.82 for a book he told Nora the car was about 10.00 was 10.00 a reasonable rounded amount EXPLAIN!!