# Questions Asked onDecember 18, 2016

1. ## Math

3. At the end of a dock, high tide of 14 m is recorded at 9:00 a.m. Low tide of 6 m is recorded at 3:00 p.m. A sinusoidal function can model the water depth versus time. a) Construct a model for the water depth using a cosine function, where time is

2. ## physics

Two forces ,whose resultant is 100N are perpendicular to each other .if one of them makes an angle of 60degrees with the resultant calculate its magnitude

3. ## Geometry

An exterior angle of an isosceles triangle has measure 150°. Find two possible sets of measures for the angles of the triangle. If the exterior angle of the bases is 150°​, then the measure of the angle of each base is _° and the measure of the vertex

4. ## chemistry

If 120. g of propane, C3H8, is burned in excess oxygen according to the following equation: C3H8 + 5O2  3CO2 + 4H2O, how many grams of water are formed?

5. ## Math

The population of a town increases by 25% during 1991. By what percent must it decrease the following year to return to the population it was at the beginning of 1991? I thought the answer was 25% but i don't know for sure.

6. ## Amerian government

PLEASE PLEASE PLEASE HELP ME 1. What type of power does the Constitution grant to the Supreme Court? (1 point) executive power federal power judicial power legislative power 2. Which are examples of judicial restraint in the Supreme Court? Select all that

7. ## Calculus Help 3 Questions

3.The position (feet traveled) of a car is given by the equation s(t)= 4t2 + 4t. Find the time when the car is going the same speed as its average speed over the interval 0 to 10 seconds. A)t=0 B)t=2.5 C)t=5 D)t=10 E)Never 4. Consider the curve given by x2

8. ## Physics

9. Figure shows an aluminium wire of length 60 cm joined to a steel wire of length 80 cm and stretched between two fixed supports. The tension produced is 40 N. The cross-sectional area of the steei wire is 1.0 mm2 and that of the aluminium wire is 3.0

9. ## Math

As the number of units manufactured increases from 4000 to 6000 the total cost of production increases from 22000 to 30000. Assuming a linear relationship between the cost when 4500 units are produced.

10. ## Calculus

A light on the ground moving at 0.5 m/s approaches a man standing 4 m from a wall. How fast is the tip of the man’s shadow moving when the light is 10 m from the wall?

11. ## English

How many stanzas are in the poem lines composed a few miles above tintern abbey. By William Woodsworth I think 120 but i am not sure.

12. ## Math

A rectangle's width is x and its length is 2x-1. Its area is 21. Find its dimensions. my work so far: 21 = x(2x +1) 21 = 2x^2 + x I was wondering how I would continue to solces this problem.

13. ## Spanish

1. Escribe esta frase como imperativo. Tú eres simpático. 2. Escribe esta frase en el imperativo. Me lo das.

14. ## Physics

A 5.0 kg block with a speed of 2.9 m/s collides with a 10 kg block that has a speed of 2.1 m/s in the same direction. After the collision, the 10 kg block is observed to be traveling in the original direction with a speed of 2.6 m/s. Suppose, instead, that

15. ## Math

5. Sales. An auto dealer’s sales numbers are shown in the table below. Find for each month the mean, median, and mode prices of the cars she sold. Round your answers to the nearest dollar. Price May June July \$20,000 22 25 24 \$15,000 49 24 24 \$12,500 25

16. ## Math

Sammy has a 10-foot ladder, which he needs to climb to reach the roof of his house. The roof is 12 feet above the ground. The base of the ladder must be at least 1.5 feet from the base of the house. How far is it from the top of the ladder to the edge of

17. ## Mensuration

A carpet is laid around a rectangular dance floor measuring 10m by 8m.if the width of the carpet is 2m,find its area.

18. ## SUMMARY OF FINANCIAL TIME VALUE OF MONEY

How much should you invest each month in order to have \$800,000 if your rate of return is 5.3% compounded monthly and you want to achieve your goal in 40 years? If you deposit the amount you need to achieve your goal in 20 years, how much will your savings

19. ## Geometry

I need to write a paper about M. C. Escher, what he did, and how he became inspired to do tessellations and make that the focus of his work. Whatever you give me is fine as long as it's helpful, a link would be great.

20. ## American History

referring to the Declaration of Independence: what references do you say in American? What attitudes toward Native Americans does this Express

21. ## Science

5. Name two ways in which a large cell can minimize the negative effects of its size. -They can minimize their size by cell division. -???????? I cannot find this answer in my textbook. Can someone please help me?

22. ## American History

Join or Die political cartoon by Benjamin Franklin what do the segments of the snke represent

23. ## Calc

fâ‚(x) = âˆš(5-x) - 2x^2+2x-4 ; x1 fâ‚ƒ(x) = -1/24 ; x=0

24. ## Journalism

What are the rights of public official/figures vs a private citizen? Thanks for the help!

25. ## Physical science

If you use a 29m second-class lever to lift a 1000 N load exactly in the middle of the lever, and you lift the lever 1.5m high, how high do you lift the load?

26. ## Calculus

Please help me. 1. Use the definition of the derivative to find f'(x), if f(x)=x^-2 2.Find the derivative of y=3t^5 - 5√t + 7/t

27. ## Math

A rectangle's width is x and its length is 2x-1. Its area is 21. Find its dimensions. my work so far: 21 = x(2x +1) 21 = 2x^2 + x I was wondering how I would continue to solces this problem.

28. ## English

Can someone please give me the summary of the following story's? Before the gun went off The poisoner who wore glasses I would really appreciate help :)

29. ## physics

A car slows down uniformly from a speed of 24.0 m/s to rest in 4.50 s. How far did it travel in that time?

30. ## Fractions

Ian drinks 3/4 cups of water for every half-mile that he runs. In cups, how much water should Ian take along for a 31/2 mile run?

31. ## Math

For the first tour on Monday, a museum sells 4 child tickets and 8 adult tickets for \$128. For the second tour the museum sells 6 adult tickets for \$72. Find the price of one child ticket and the price of one adult ticket

32. ## Assistance on whether numbers are correct? Financi

You would like to have \$750,000 when you retire in 25 years. How much should you invest each quarter if you can earn a rate of 4.2% compounded quarterly? future value = (payment)[((1+i)^n-1)/i] 750000 = P[(1.042^(4*25)-1)/0.042] 750000 = P[1433.4] payment

33. ## math

Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the

34. ## financial analysis

Coupon rate 12% Coupons per year 2 years to maturity 15 Price \$1,153.72 Face Value \$1,000.0 Tax Rate 40% how do you calculate the market interest rate

35. ## Chemistry

What would the step by step process be to perform titration with a strong base and strong acid? Including the equipment. If someone could explain it in a brief way to me that would be appreciated.

36. ## English

Write his, her, their, or its to should which pronoun you should use. 1. each neice: ______ answer: their 2. Jane, Ann, or Wilma ___ answer: their 3. either Brian or Kevin ____ answer: their

37. ## English

Write each noun and whether it is concrete or abstract. Your van was towed to the garage down the street. VAN-CONCRETE, GARAGE: CONCRETE STREET: CONCRETE

38. ## English

Write each noun and tell whether it is concrete or abstract. Mary and John study English at the college. Mary and John= concrete English= abstract college= concrete

39. ## English

Find the verb. Several huge rocks had fallen onto the highway and shattered. answer: shattered

40. ## Chemistry

A.) Write a balanced chemical Eq'n for a reaction between MAGNESIUM & HYDROCHLORIC ACID. Answer: Magnesium + Hydrochloric Acid Mg (s) + 2 HCL (ag) ---- MgCl2 (aq) H2(g) B.) Assuming 7.00 g of Magnesium completely react according to the above Eq'N,

41. ## English

Find the verb. Breakfast was served promptly at 8:00am. answer: served

42. ## Social studies

1, in what way did Uncle Toms Cabin change the attitude of Northerners about slavory? They began to view it as a political problem They began to view it as an economic problem They began to view it as moral problem****** They began to feel it was none of

43. ## SS HELP FAST!!! 2

Using the chart above, develop an inference comparing the economic conditions in South Korea and North Korea. Use facts from the chart to support your inference. So, whats this asking? (I Cant Put The Chart On This...)

44. ## MATH

Find the value of single perpetuity payment if the present value of the perpetuity payments at t=0 years is AED 500,000 and the interest rate is R% compound per year.[Choose R% from 8% to 12%]

45. ## MATH

Calculate the net present value (NPV) of the cash shown on the diagram at t = 0 year, if the interest rate is W % compounded annually. Initial capital is AED 300,000 [Choose any value for X,Y&Z from AED 200,000 to 900,000and W from 10% to 18%] AED 100,000

46. ## Math

A rectangle's width is x and its length is 2x-1. Its area is 21. Find its dimensions. my work so far: 21 = x(2x +1) 21 = 2x^2 + x I was wondering how I would continue to solces this problem.

47. ## geography

if it is 2pm at 45degree west what is the time at 45 degree east

48. ## science

Describe how the kinetic energy of the molecules affects an object's total thermal energy.

49. ## math

The locus of a point whose distance from point (0,5) is always 3/4 of its distance from the line Y=8 is an elipse. Find the equation,centre, length of the major axis, length of the minor axis and the foci of the ellipse.

50. ## Algebra

Find the equation, the center and the radius of a circle passing through (1,-3) , (2,-2) and (-2,6).... with steps.

51. ## Math

Compare. Use , or = to. Show all work -55÷(-11) ___ 45÷(-9)

52. ## math

the hour hand of a clock move from 1 to 4 0 clock. through how many degrees does it move

53. ## Grammar

Re-write the paragraphs adding pronouns such as "he," "they," etc. Tim and Paul love to go to the pool. Tim and Paul's favorite thing to do is swim laps. Tim likes to do the backstroke. Tim collects all the posters of famous swimmers in his bedroom. Tim

54. ## Math

Given that the line x/a + y/b = 1 passes through ( 0 , 3 ) and ( 5 , 1 ), find the value of a and b

55. ## Algebra II Honors

A rectangular garden is 25 feet long by 10 feet wide. You have enough mulch to cover 1000 square feet. You would like to extend both the length and the width of the garden by x feet to use up all of the mulch. Write an equation to represent the area of the

56. ## physical science

The gas in a cylinder has a volume of 3 liters at a pressure of 106 kPa. The pressure of the gas is increased to 208 kPa. Assuming the temperature remains constant, what would the new volume be? = ....L?

57. ## Math

The salary of an employee in 1985 is \$1200,in 1987 it will be \$1350. Express salary as a linear function of time and estimate his salary in 1988.

58. ## unitar

A machine produces parts with lengths that are normally distributed with ï³ ï€½ 0.5 . A sample of 10 parts has a mean length of 75.92.

59. ## Math

The equation of line joining the point (3,5) to the point of intersection of the lines {4x+y-1=0} and {7x-3y-35=0} is :

60. ## math

Solve the equation for x. For each of the following problems is it possible for x to be equal to: 1? (x+m)/(x−1)=1 If m ≠ -1, there are no solutions\ if m=1, the solution is ? Ii do not now how to find the solution for if m=1 but i got all real

61. ## math

Annuities /assessment You would like to have \$550,000 when you retire in 35 years. You would like to have \$550,000 when you retire in 35 years. How much should you invest each quarter if you can earn a rate of 4.8% compounded quarterly? a) How much should

62. ## Bayes' Theorem

I tried the problem and my answers are still coming up wrong?. You can compare to mine to see where you (or I) went wrong. I'm a little rusty on Virus infects one in every 200 people. A test used to detect the virus in a person is positive 90% of the time