# Questions Asked onJanuary 17, 2020

1. ## Physics

A brass measuring tape is correct at 20 degree Celsius. The value obtained when the length of a field is measured with the rule at 50 degree Celsius appears to be 70.5m. what is the true length of the field Linear expansivity of brass =1.8 ×10 raise to

2. ## Calculus

Consider the curve given by x^ 2 +sin(xy)+3y^ 2 =C, where Cis a constant. The point (1, 1) lies on this curve. Use the tangent line approximation to approximate the y-coordinate when x = 1.01 .

3. ## Calculus

The altitude of a kite is graphed here (the y-axis is in increments of 10 feet; the t-axis is in minutes). Over which intervals is the kite accelerating upward? paste.pics/1a51dc876019fc4dd47240a035d8f5bf Go to this website for the graph

4. ## math

Nicholas is the facilities manager for Green Market Groceries. The store is remodeling and wants to determine which brand of freezer to use for its frozen goods section. The freezers vary by size, cabinet type, accessibility, refrigerant, and interliner.

5. ## math

the angle elevation of the top of a cliff from point p is 45 from a point Q which is 10m from P towards the root of the cliff the angle of elevation is 48 calculate the height of the cliff.

6. ## Chemistry

Background information: Due to the widespread use of sodium bicarbonate (commonly called baking soda) in many food products, the thermal decomposition reaction has been studied extensively by food chemists. Baking soda is used to prepare cakes in order to

7. ## civics

the supreme court decision in gibbons v. ogden decided that the commerce clause in article 1 of the constitution gives congress the power to regulate interstate trade how was that decision used to increase national power over the states? select all that

8. ## Calculus

If the graph of f(x) looks like the top graph in the screenshot, which of the following represents the graph of f(|x|)? paste.pics/708fe5c06e18ef0ab5381347eddfc2c9 Go to this website for the screenshot

9. ## science

Which element is oxidized in this chemical reaction? 4Na(s) + O2(g) → 2Na2O(s)

10. ## maths

3x-2y=4 2x-3y=6. using substitution method

11. ## Algebra

A student randomly selects one marble from the group of marbles shown below and then tosses a balanced coin. 3 red marbles 4 green marbles 2 blue marbles A. What is the probability that the student will select a green marble and then toss a heads? Show all

12. ## math

Which statement correctly describes the slope of the linear function that is represented by the data in the table? x y 8 –8 8 –4 8 0 8 4 8 8 The slope is positive. The slope is negative. The slope is zero. There is no slope.

13. ## Math

The third term of an Ap is 9 while 11th term is -7 find the first 5th term of the Ap

14. ## math

Solve for W. A=9W ----------------------- I'm so confused and I have no clue how to solve this. Can someone please help??????????

15. ## US History

In 3–5 sentences, describe the Hoover administration's initial response to the Great Depression. Choose 2 examples.

16. ## Calculus

Here is a graph of the derivative y’ of a continuous, differentiable function. For approximately what values of x between -5 and 5 does the original function y have inflection points. Is it 4 inflection points? paste.pics/fa14942466016d4a8e4a0678cf9d8cbb

17. ## Math

In a senior secondary school, 80 students play hockey or football. The number that play football is 5 more than twice the number that play hockey. If the 15 students play both games and every student in the school playsat least one game, find: The number

18. ## mathematics

a tree casts a shadow of 34 feet at time when a 3-foot tall child casts a shadow of 1.7feet. What is the height of the tree?

19. ## math

Ama is 4 times older than her brother.Ama is 16 years.how old will they be in 12 years time.

20. ## Math

Which function describes the arithmetic sequence shown? 1, 7, 13, 19, 25, 31, ... A) ƒ(x) = 6x + 5 B) ƒ(x) = 5x + 6 C) ƒ(x) = 5x − 6 D) ƒ(x) = 6x − 5

21. ## Chemistry

What concentration of Ag+ is in equilibrium with 3.0×10−6 M Co(CN)3−6 and Ag3Co(CN)6(s)? Ag3Co(CN)6 --> 3Ag^+3 + Co(CN)6 ^-3 I worked the problem as such: Ksp= 3.9*10^-26 3.9*10^-26= [3x]^3 * [x] 3.9*10^-26= [3x]^3 * [3.0*10^-6] Divided both sides by

22. ## Civic

The purpose of the petition sent to king George 3 was

23. ## science

A container of water is knocked off a 10.00–meter–high ledge with a horizontal velocity of 1.00 meters/second. Calculate the time it takes for the container to reach the ground.

24. ## Careers

Which careers are possible for me to do? Maths lit,geography,history,tourism

25. ## Biology

Explain how stream volume and speed affect the size, shape, and flow of streams and rivers. Can you explain it in at least 6 sentences? Thank you so much!

asked by Help is Always appreciated
26. ## algebra

Which of the following are equivalent to 45%? Choose all that apply. 0.045 0.45** 9/10 9/20**

asked by 21 pilots (not really)
27. ## English

"people from different parts of the world can respond to the same story if it says something to them about their own history and their own experience" -Chinua Achebe Write a short essay (2 paragraphs) help

28. ## English

Paragraph 1 Background You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must

29. ## Physics

Total left direction moments of a coplanar system of forces are given by G, 2G and 4G about the points (0,0) , (1,2) and (2,5) respectively. Find the magnitude and the equation of the line of action of the resultant. (G doesn't equal 0) I know that the

30. ## precal

f(x)=2x+4 and h(x)=x^3 find (h o f)(2)

31. ## English

Frost state "play is the chief vehicle for the development of imagination and intelligence, language, social skills, and perceptual-motor abilities in infants and young children" Can you please explain this person's beliefs from this quote?

32. ## math

a right VEFGH with a square base of 8cm and a slant edge of 20cm. Points A, B, C and D lie on the slant edges of the pyramid such that VA =VB = VC = VD =10cm and plane ABCD is parallel to the base EFGH. (a) Find the length of AB. (b) Calculate, correct to

33. ## Math

A piece of land ABCD earmarked for building sub-county hospital. in meters (a) Write down the ordinates of curves AB and DC for x = 0, 200, 400, 600, 800, 1000 and 1200. (b) Use trapezium rule, with 6 strips to estimate the area of the piece of land ABCD,

34. ## Social Studies

Why did the monks and nuns promise to live their entire lives within their religious communities? A. They needed to live alone to practice Christianity freely. B. They made a vow to devote their entire lives to god.***** C. They could better provide

35. ## English

"so much snow" written by Robert Munsch what message it gives? 5 point, please

36. ## Social Studies

1. How is the size of a legislative district determined? a. by geographical boundaries b. by city limits c. by the apportioned population d. by country boundaries

37. ## visual arts

thearrangement

38. ## math word problem

Organizers for a local race plan to provide 4 water bottles for each runner, 328 people have signed up to run in the race which of the following equations represent the this situation and what does the variable x represent A) 328/x=4, x=number of water

39. ## Maths

Rounding off 87392 to the nearest 1000

40. ## Math

In a candy bar, 165 calories are from sugar. There are 250 calories in the candy bar. What percent of the calories are from sugar. A=58 B=82 C=60 D=66< --------- Please correct me if I am wrong I need to get this done.

41. ## Math

A group of people were asked if they had run a red light in the last year. 238 responded "yes", and 196 responded "no". Find the probability that if a person is chosen at random, they have run a red light in the last year

42. ## Social studies

How many provisions were there of the Treaty of Tordesillas? And what are they? i could really use some actual help, not just articles

43. ## math

elimination method 4p+3q=6 and 3p-5q=-1o

44. ## Algebra

I wanna make sure I understand how to do this so, the math problem is -25+37 the answer would be 12 right?

46. ## Earth Science

What provides evidence of an increase in animal species at the same time that atmospheric oxygen concentrations increased?(1 point) rust deposits anaerobic organisms fossil record stromatolites

47. ## Technology

`Think about the last business that you purchased a product or a service from. What three types of software might they need? Why would they need them? I don't understand the question, could I get a little help please and thank you!

48. ## history

Which belief did Presidents Roosevelt, Taft, and Wilson share?

49. ## Earth Science

In a small bay that contains a coral reef, the water temperature has remained the same for decades. Recently, scientists discovered that the water temperature in the bay has increased by 1°C. Which is most likely to happen?(1 point) The corals in the reef

50. ## science

The timber wolves, rabbits, and vegetation in a particular region of northern New York together constitute part of a

51. ## math

Quinn deposited \$80 in a savings account earning 5% interest, compounded annually. To the nearest cent, how much interest will he earn in 2 years?

52. ## history

How did the spoils system affect President James Garfield and his successor Chester A. Arthur?

53. ## Math

You collect data on the number of children for each other woman in a random sample of 100 adult women in the United States. Think about the amount of children most women typically have (is the average 2-3 children or 8-9 children?). Picture or sketch out

54. ## Physics

A 89.0 kg person stands on one leg and 90% of the weight is supported by the upper leg connecting the knee and hip joint-the femur. Assuming the femur is 0.640 m long and has a radius of 1.90 cm, by how much is the bone compressed?

55. ## math

Which exponential expressions are true? Select two answers. A. 4 ⋅ 4 = 2 4 B. ( 5 + 2 ) 3 = 5 3 + 2 3 C. 8 ⋅ 8 ⋅ 8 ⋅ 8 = 8 4 D. 3 ⋅ 3 ⋅ 3 = 3 27 E. ( 6 − 1 ) 2 = 5 2

56. ## math

Which pair of ratios can form a true proportion 7/4 21/12*** 6/3 /56 7/10 6/7 3/5 7/12 I just need to check my work

57. ## Math

6 1/2 x 1 1/3 A. 5 1/6 B. 6 1/6 C. 7 5/6- my answer D. 8 2/3

58. ## Calculus

Rebecca, Justin, and Robert are trapped in a rectangular room 8 feet deep and 10 feet tall. Two opposing walls are closing in at a rate of 1 foot per minute. If the water in the room is 2 feet deep when the moving walls are 12 feet apart, how fast is the

59. ## Math

Solve for the length of the unknown side in the following right triangle. (Side AC is the hypotenuse.) Round your answer to two places, where applicable. Side AB Side BC Side AC 3 4 ?

60. ## math

2 1/3x =7 7/8 -3 3/8 -3 1/2 - 3 5/8 - 4 1/4** my answer

61. ## Calculus

Rebecca, Justin, and Robert are trapped in a rectangular room 8 feet deep and 10 feet tall. Two opposing walls are closing in at a rate of 1 foot per minute. If the water in the room is 2 feet deep when the moving walls are 12 feet apart, how fast is the