# Questions Asked onAugust 8, 2015

1. ## Math

Let ∠X and ∠Y be complementary. If sin(X) = 3/5 and cos(X) = 4/5 then what is the value of sin(Y)? A)3/5 B) 4/5 C) 5/4 D) 5/3 Is it A?

2. ## wits

Vector A has magnitude of 75 units and points in the positive x direction.vector C = A+B points points in the y direction and has magnitude of 95m.(a) sketch vector A; B & C. (b) Estimate the magnitude & direction of vector B. (c) verify your estimate in

3. ## Sociology

What are necessary to explain research findings? a- variables b-theories c- symbols d- research models I'm not sure of the answer because you would need models to conduct the research and theories to model the research. I don't think symbols would explain

4. ## Math

Trina has \$1000 to purchase an open-top cylindrical dog pen in her backyard. She wants the height of the pen to be 5 feet. If the pen costs \$1 per square foot, what is the biggest pen (in terms of the radius) that she can afford? Round your answer to the

5. ## computer programming

Boardman College maintains two files—one for Sociology majors and another for Anthropology majors. Each file contains students' ID numbers, last names, first names, and grade point averages. Each file is in student ID number order. The college is merging

6. ## Math

A circle has an area of 36 in2. What is the area of a sector of the circle that has a central angle of π/6 ? A) 3 in2 B) 6 in2 C) 12 in2 D) 196 in2 I think Its 12

7. ## physics

A swimmer, capable of swimming at a speed of 1.81 m/s in still water (i.e., the swimmer can swim with a speed of 1.81 m/s relative to the water), starts to swim directly across a 2.29-km-wide river. However, the current is 1.31 m/s, and it carries the

8. ## Math

A gallon of milk costs \$3.80. If there are 128 ounces = 1 gallon ,how much money does an 8 ounce glass of milk cost? (Change ounces to gallons to dollars)

9. ## Math

In a shop selling bicycle and tricycle, a total of 80 pedals and a total of 98 wheels were counted. How many bicycles and tricycles does he have?

10. ## Science

Balance this equation using oxidation method:I2+HNO3---->HIO3+NO2+H2O

11. ## phy.

If you witnessed a broadside collision, would you expect that the velocities and weights of the cars determine where the cars will land after collision?

12. ## Physics

A dog runs west for 20m then north for 15m. What is the resultant displacement of the dog graphically and by calculations?

13. ## physics

A golfer hits a shot to a green that is elevated 2.70 m above the point where the ball is struck. The ball leaves the club at a speed of 19.0 m/s at an angle of 36.0˚ above the horizontal. It rises to its maximum height and then falls down to the green.

14. ## Physics

Just reposting. A spaceship is on a straight-line path between the Earth and the Moon. At what distance from Earth is the net gravitational pull on the probe from the Earth and the moon zero? Mass of Earth = 6×10^24 kg. Mass of Moon = 7×10^22 kg. The

15. ## Physics

Leila walks south for 20m and then west for 20m. What is her resultant displacement graphically?

16. ## World History

Why did Mesopotamia city-states flourished? Was it due to specialized labor or conquered an area large enough to make themselves self-sufficient.

17. ## PHYCICS

if length of a wire increasES BY 20% THEN WHAT IS %INCREASE RESISTANCE

18. ## Math

what is a real life example of 3/4 divided by 1/2

19. ## Psychology

Dissociation and selective attention are two possible explanations for the phenomenon of

20. ## physics

A 50.9-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.526 and 0.311, respectively. What horizontal pushing force is required to (a) just start the crate moving and (b) slide the crate across the

21. ## algebra

The perimeter is 38.8 millimeters and the length is 2.4 times the width. (Round your answers to one decimal place.

22. ## physics

A golfer hits a shot to a green that is elevated 2.70 m above the point where the ball is struck. The ball leaves the club at a speed of 19.0 m/s at an angle of 36.0˚ above the horizontal. It rises to its maximum height and then falls down to the green.

23. ## Important question regarding chemistry

Explain intermolecular hydrogen bonding with reference to ortho nitrophenol

24. ## Math

Peter is 8 years younger than Alex. In 9 years' time, the sum of their ages will be 76. How old is alex now?

25. ## physics

Using the following conversion factors, determine the number of milliliters in a volume of 2.37 fluid ounces: 1 gallon (gal) = 128 oz., 3.785 x 10-3 cubic meters (m3) = 1 gal, 1 mL = 10-6 m3. I got an answer 7.09ml, but it's incorrect, so confused how to

26. ## sakre school

A piece of material subjected to three mutually perpendicular stresses of 70, 56 and 84 Mpa. If E = 200GPa, Poisson's ratio = 0.28, determine (10) (a) Principal strains (b) Shear modules (c) Bulk modules.

27. ## Math

You and five of your friends like to go to McDonalds once a week and get Happy Meals for the prize inside. McDonalds has just started a new “dinosaur toy” promotion for their Happy Meals with six different dinosaurs you can collect: Brachiosaurus,

28. ## physics

damon,reiny,steve,ms sue.plz get a solution 2 my question please itz urgent!!!

29. ## Physics

A lumberjack (mass = 104 kg) is standing at rest on one end of a floating log (mass = 234 kg) that is also at rest. The lumberjack runs to the other end of the log, attaining a velocity of +3.18 m/s relative to the shore, and then hops onto an identical

30. ## Medical Billing

You're a coder who's reviewing the record of a 62-year-old woman who was admitted to the hospital with shortness of breath and minor chest pain. The doctor diagnosed the patient with Staphylococcus aureus pneumonia and you assigned a code of 482.41.

31. ## Math

ln(y-9)-ln7=x+lnx Thank you sooo much for helping:))))

32. ## Mathematics , business studies , economics , geography

Which courses or careers i should follow doing those subjects

33. ## Maths pure, economics, business studies, geography

Which careers or courses i should do doing those subjects

34. ## Maths

20 children go for a picnic in a bus. They are to sit 2 or 3 to a seat. There are 7 seats. How many seats will have 3 children seated on them?

35. ## Math

I have finished Summer Work all but this one. Denver beat the Giants in a game. The sum of their scores was 44. The difference of their scores was 20. How many points did Denver score? I don't want the answer, I just want to know how to figure it out.

36. ## science

Whar are two longest wavelength in frequency 1kghz and 200kghz

37. ## physics

A proton with charge mass ratio of 108 C/kg is moving in a circular orbit in a uniform magnetic field of 0.5T .Calculate the frequency of revolution.

38. ## Maths I NEED AN ANSWER ! THE 6 IS ALL I KNOW!!!

Angel is thinking of a number. All its digit are even numbers. The sum of its digit is 18. The digit 6 stands for sixty. The smallest of the three digits is in the tenths place. The greatest of the three digit is in the ones place. What number is Angel

39. ## algebra

sketch the graph of each linear inequality x>5

41. ## physics

qustion(1):A rectangular face of a casting 250mmx100mm is to be machined on a sharper.if the average cuting speed is to be 20m/min and the feed is to be 2mm/stroke,calculate the time taken to machine the face of casting.allow 5mm overun at each end of the

42. ## Physics

so i need to calculate the moment of inertia of the pulley and the angular acceleration of the pulley. mass A = 9kg Mass B = 15kg Inner pulley= Mass 3kg R= 6cm Outerpulley= mass 7kg R=12cm both are disks glued together. it is a composite pulley with two

43. ## sales

are interested in buying a new car and Bob let's you borrow one of the new cars on his lot for a week to test drive. You decide you like the car and when you visit Bob to drop off the car, he hands you the following document and a pen: May 1, 201x I

44. ## algebra i

two rubber balls are dropped from two different heights 136 ft and 287 ft. Find the function that describes them. I believe it is H(t) = -16t^2 + 136 and H(t) = -16 ^2 + 287. There are no answers in the book . I assumed velocity is 0. Am I correct? Thanks,

45. ## algebra 1

How many solutions are there to the system: y=1+2x+x^2 y=1-x Write your answer as an integer.

46. ## Math

Interval it exists on: (5-x)y"+3xy'-y=1 y(0)=2

47. ## Microeconomics

A firm currently uses 40,000 workers to produce 180,000 units per day. The daily wage per worker is \$100, and the price of the firm’s output is \$28. The cost other variable input is \$500,000 per day. (Note assume that output is constant at the level of

48. ## org chem

is precipitation technically the same as crystallization?

49. ## Trig

cos 13 pi = ?

50. ## Physics

Just reposting. A cricket ball rotates at 1800 rev/min as it travels through the space in a straight line at 160 km/hr. How many times does it revolve after traveling 20m? Can someone confirm with me if 13.5 revolutions in 20m is right. That's the answer i

51. ## Topology

Let (X,d) be the discrete metric space and let S be a infinite subset of X. Create a proof that S is non-compact in X. Thanks.

52. ## algebra

sketch the graph of each linear inequality 3x+2y>-10

53. ## math

ln(y+1)+ln8=x+lnx

54. ## math

the difference between two prime numbers is 1985 the larger of these prime numbers is what

55. ## math

|x^{2}-16x+56| = -4x-7 what does x equal?

56. ## math

how do I write 6 2/3 + 3 4/5 to its simpliest form. This is how I did it. Could someone tell me if its write?. Or give me the proper steps to doing this? 6 2/3 + 3 4/5 = 20/15 + 19/15= 39/15= 2 9/15 = 2 3/5