# Questions Asked onJuly 28, 2016

1. ## life Orientation

Define the concept"risk behsviour"and explain why it is important for teenagers to investigate and be knowledgeable about it

2. ## Math

two pyramids are similar with a ratio of surface areas of 25:64, find the volume of the second pyramid given that the first has a volume of 250 m

3. ## Math

The park had initially planned to charge \$8 for admission and expected to have 2400 visitors a day. Allison and Juan were assigned the task of analyzing the park's admission revenues. 1.a)How much revenue would the park have for one day at the current

4. ## Chemistry

C2D3 has a solubility product constant of 9.14×10−9. What is the molar solubility of C2D3? Express your answer with the appropriate units.

5. ## math

Three faucets fill a 100-gallon tub in 6 minutes. How long, in seconds, does it take six faucets to fill a 25-gallon tub? Assume that all faucets dispense water at the same rate.

6. ## life orientation

Why is it important for teenagers to investigate and be knowledgeable about risky behavior?

7. ## Maths

Prove That Sin2A+ Sin2B +SIN2C/sinA+SINB+SINC=8sinA/sinB/2COSC/2

8. ## chemisty

If 26.5 mL of 0.222 M HCl reacts with excess Mg, how many mL of hydrogen gas are produced at STP?

9. ## Stats

Describe how to use a source of random data to simulate multiple trials of this situation. A student guesses on all 10 questions of a multiple-choice quiz. Each question has three choices. a. Assign 00-09 to all of the correct answers and 10-29 for all the

10. ## General Chemistry

what is the value of Kc if PbCl(s)=1.5g, [Pb2+]=1.6*10^-2 M and [Cl-] =3.2*10^-2 M at equilibrium? (The molar mass of PbCl(s) is 278 g/mol and its density is 5.85g/cm^3.)

11. ## chemistry

How to solve CoCl2+HO2- ------> Co(OH)3+ Cl- by half reaction method

12. ## Maths

Prove that cos3x/cosx-cos6x/cos2x=2(cos2x-cos4x)

13. ## math

How does the volume of a rectangular prism change if the width is reduced to 2004-06-01-04-00_files/i0280000.jpg of its original size, the height is reduced to 2004-06-01-04-00_files/i0280001.jpg of its original size, and the length is reduced to

14. ## pre cal

Find a possible formula for the function graphed below. The x-intercept is marked with a point located at (5,0), and the y-intercept is marked with a point located at (0,−0.833333333333333). The asymptotes are y=−1 and x=6. Give your formula as a

15. ## Chemistry

What is the concentration of a monoprotic weak Acid if its pH is 5.50 and its Ka= 5.7 x 10^-10?

16. ## Business Law- Need Help with this one..

Which of the following statements is true about contracts? A. Parties to an informal contract can use any words they choose to express their contract. B. A contract under seal is disclosed only to the offeror of the contract. C. A letter of credit is an

17. ## chemisty

How many mL of .200 M NaOH are required to completely neutralize 5.00 mL of 0.100 M H2PO4?

18. ## math

Determine the rate per cent per annum if Rs 6,250 amounts to Rs 6760 in six months ,interest being compounded quarterly

19. ## pre cal

Find a possible formula for the function graphed below. Assume the function has only one x-intercept at the origin, and the point marked on the graph below is located at (2,12). The asymptotes are x=−2 and x=1. Give your formula as a reduced rational

20. ## Science

A motor boat starting from rest on a lake accelerate in a straight line at a constant rate of 3m/s for 8s. How far does the boat travel during the time?

21. ## Chemistry

How much heat is produced by the complete reaction of 5.29 kg of nitromethane?

Which of the following statements is true regarding a negotiable instrument? A. It should be signed by the payee. B. It need not state a fixed amount of money. C. It should not require any undertaking other than the payment of money. D. It can be either

23. ## Algebra 1

You buy a used car for \$20,000. It depreciates at the rate of 21% per year. Find the value of the car for the given years (5 and 8) I'm using the equation v=c(1-r), and i end up getting 6154.11 ; im not sure if i subtract that from 20,000 or if that is my

24. ## physics

a rock is dropped from a height of 20m above the ground when it hits the ground it leaves a hole 10cm deep with what speed does the rock hit the ground, and what is the magnitude of the rock's deceleration after it hits the ground

25. ## math

How can you write 100,203 in two other ways?

26. ## mathematics

There are thrice as many girls as boys at a school. If 35% of the girls and 45% of the boys have already completed their holiday project, what percentage of the learners still needs to complete their project?

27. ## Science

Pressure is 50N/m2,area is 600cm2.Find force

28. ## math

Write the equation which describes the average price of a 19 inch TV if the cost in 2000 was \$224 and has gone down \$7 per year following.

29. ## maths

A lorry is travelling at 120 km/hr .At what speed must a car travel to catch up with the speed of the lorry?

30. ## Math

92-(-64)=? -73-89=? -66-(-49)=? 846-749=? 697-(-697)=? -697-(-697)=? -697-697=? 89-97-(-78)=? -53-26-(-77)=? -42-(-81)-(-73)=?

31. ## stats

The purpose of using stratified random sampling is to guarantee that the ______________. a. proportions within the samples represent the proportions in the population. b. sampling variability is increased c. sample groups are highly varied for more precise

32. ## Chemistry

How many grams of Nitrogen contains same number of neutrons as 6grams of 12C?

33. ## Maths

Prove That Sin2A+SIN2B+SIN2C/SINA+SINB+SINC=8SinA/2SINB/2SINC/2

34. ## Science, English, math

Why do we live

35. ## life orientation

examine how each of following are responsible for road accident and propose the potential solution by community 1.1 competence of the driver 1.2 substance abuse 1.3 pedestrian 1.4 cyclists 1.5 live stock

__________ are a special form of contract that satisfy the requirements established by Revised Article 3 of the UCC. A. Banknotes B. Negotiable instruments C. Letters of credit D. Stocks An: B

37. ## Health care

Of the racial/ethnic groups, which has the highest rate of low birth weight infants? Asian or Pacific Islander Hispanic Black/ African American White

38. ## Math

If you roll this six sided number cube 36 times, how many times would you expect to roll the number one based on Jennifer's results?

39. ## microsoft P.P.

When planning a presentation, there are several factors you need to consider. Which of the following is one factor you should consider when initially planning your presentation? A. Location of audience B. Title placeholder C. Type of font D. Saving your

40. ## Microsoft P.P.

Which button would you use to insert a downloaded video clip on your computer into a slide? A. Online Video B. Clip Art Video C. Video on My PC D. Media my answer is c.

41. ## Microsoft P.P.

Sorter 9. Tracy inserted one of her favorite photos into a slide presentation. However, the picture is small and needs to be longer and wider. To make the picture larger, which of the following should she do? A. Right-click on the object and click Size. B.

42. ## algebra

The product of two consecutive integer is 5 three times the larger integer, what are the integers?

43. ## algebra

The product of two consecutive integer is 5 three times the larger integer, what are the integers?

44. ## algebra

The product of two consecutive integer is 5 three times the larger integer, what are the integers?

45. ## algebra

The product of two consecutive integer is 5 three times the larger integer, what are the integers?

46. ## math

How much talk time if call costs 36 cents a minute and i have 30 dollars?

47. ## Chemistry

A glass of water contains 1.2 x 1024 molecules of water. An additional 4.0 moles of water are poured into the glass. How many moles of water are in the glass?

48. ## Calculus

divide 64 into two parts such that the product of one of them plus the cube of the other is a maximum

49. ## English

Underline the subject and verb. Does the verb agree with the subject? In my garden, the first flowers has bloomed. subject:flowers verb: has The verb should read: have

50. ## math

how to find the dimension if the diagonal of the rectangle is 8 meters longer than its shorter side and the area of the rectangle is 60 square meters?

51. ## English

Which is grammatically correct? The steak (is, was) as tough as shoe leather. answer: was

52. ## Math

It takes John 45 minutes to read 9 pages of a book at this same rate, how long will it take him to read 12 pgs?

20/5

54. ## basic maths trignometry

prove that secx - tanx = 1 -tan x/2 /1 + tan x/2

55. ## math

Solve 2 + 2 sin θ = 3 cos^2 θ. Give the general solution and then give solutions in [−π, π] How do i solve for theta?

56. ## math

A motor travels 20 km/hr faster than the bicycle. If the motor travels 240 km, while the bicycle travels 180 km at the same time. Find the speed of the motor and the speed of the bicycle. thanks :))

57. ## Math

In Gulshan the ratio of private homes to apartment is 3:5. If all the apartments are brick made and 1/10 of the private homes are wooden, what is the maximum portion of houses that may

58. ## value

in a class 7 2 fifthy were girls ,27were boys ,how many girls were there

59. ## math

In a country, 15 out of 100 residence had no auto insurance. The population in that country at that time is 240 million. How many residence of that country had no auto insurance? thanks :))

60. ## Chemistry

Why wash water in experiment limiting reagent has to be kept warm at 80-90 degree celcius . Explain why

61. ## math

An elevator went up 8 floors, then down 6 floors, down 5floors, up to 10 floors down 2floors and up 9 floors. If it stopped on the 15th floors. On what floors did it starts?

62. ## powerline

the resistance of the material in inversely proportional to its

63. ## maths

in a class 2fifthy were girls, 27 were boys, how many girls were there

64. ## maths

in a class 7, 2 fifthy were girls . boys were 27. how many boys were there

If the concentration of I^-1 is found to be 2.4 x 10^-3 mol/L in a saturated solution of PbI2. What is the Ksp of PbI2?

66. ## physics

find the energy of an x-ray photon which can impact a maximum energy of 50 kev to an electron