# Questions Asked onMarch 3, 2018

1. ## Math

There is 48 students in a class. 7 out of 8 are females what percent are females?

2. ## Physics

a rocket of mass 1000kg containing a propellant gas of 3000kg is to be launched vertically. If the fuel is consumed at a steady rate of 60kg per seconds, calculate the least velocity of the exhaust gas if the rocket and content will just lift off the

3. ## MATH

How many kilometers can a motorist travel from 8:55 AM to 10:10 PM at a rate of 60 km/hr?

4. ## Chemistry

What is the total molar concentration of all the ions in 0.0200 M solutions of the following salts in water? 0.0200 M KCl 0.0200 M CuSO4 0.0200 M CaCl2

5. ## Math

There is a school that has 6,190 students there is already 216 how many more teachers are needed

6. ## physics

An electron experiences an electric force of 0.70 nN . What’s the field strength at its location?

7. ## Calculus

The total stopping distance T of a vehicle is shown below, where T is in feet and x is the speed in miles per hour. T = 2.5x + 0.5x^2 Approximate the change and percent change in total stopping distance as speed changes from x = 15 to x = 18 miles per

8. ## math

the minute hand of a clock is 6cm long.how far does the end of the hand travel is 35minute

9. ## Chemistry

A solution is created by dissolving 13.0 grams of ammonium chloride in enough water to make 265 mL of solution. How many moles of ammonium chloride are present in the resulting solution? When thinking about the amount of solute present in a solution,

10. ## Chemistry

Lactic acid, a chemical responsible for muscle fatigue, is a monoprotic acid. When 0.578 g of lactic acid is titrated with 0.206 M NaOH, a volume of 31.11 mL of NaOH is used. What is the molar mass of lactic acid? HA + NaOH > NaA + H2O (also does the A

11. ## Math

A soccer team played a total of 27 matches and the ratio wins to losses was 7:2. How many games did the team win and how many did it lose?

12. ## English

WILL GIVE BRAINLIEST 1. (Look) out of the window and tell me what you see. indicative imperative subjunctive 2. Yosemite National Park (is) a national treasure. indicative imperative subjunctive 3. If I (were) you, I’d hike up Bridal Veil Falls.

13. ## physics/electrical circuits

a wire has a resistance of 1 ohm if the length is increased four times and the area is double the original, find the new resistance of the wire.

14. ## Statistics

Find the area under the normal curve in each of the following cases. 1. Between z = 0 and z = 1.63 2. Between z = 1.56 and = 2.51 3. Between z = -0.76 and z =1.35 4. Between z= -0.26 and z = -1.76 5. To the left of z = 2.35 6 To the right of z = -1.31 7.

15. ## science

A boy moves 100m towards North then 70 my towards East then what is its displacement

16. ## Optics

A converging lens of focal length f1 = +22 .5cm is placed at a distance d = 60 .0cm to the left of a diverging lens of focal length f2 = −30.0cm. An object is placed on the common optical axis of the two lenses with its base 45.0cm to the left of the

17. ## physics/electrical circuits

there are two wires a and b. if the resistance of B is R and the diameter of A is twice of B, the length and the nature of the material is the same, find the resistance of A.

18. ## physics/electrical circuits

if there are eleven resistors of 33k ohms each in parallel, what is the total resistance?

19. ## Social Studies

Which of the following was among President Wilson’s Fourteen Points? A disarm all major powers B form a league of nations ** C create an alliance with Germany D make all European country learn their lesson What was the main purpose of President

20. ## geometry

name the angle that is supplementary to COB A.AOF B. COD C. BOF D. DOC

21. ## american government

Which of the following is NOT true in U.S. elections? a. A third party candidate can cause the candidates in a dominating party to lose votes. b. Third parties give those voters who do not support the political views of either dominating party a chance to

22. ## Chemistry

10. Write out the precipitation reaction formulas: NaOH(aq)+MgCl2(aq)> a. Complete ionic reaction: b. Net ionic reaction: c. Molecular reaction: *Please could some explain step by step why and how you solve this problem I do not understand at all . Thanks

23. ## math

The state lottery (which has a 6% lottery tax) offers to pay winnings in 25 annual payments or one lump sum, sometimes called a cash-out option. This week’s lottery has a jackpot of \$30 million and a cash-out value of \$18.2 million. Granted that the odds

24. ## Math

When a marathon runner completes 3 round around a circular track he covers a distance of 66 km.find the radius of track.

25. ## Science, chemistry

Electrophilic substitutions reaction of pyrrole

26. ## physics/electrical circuits

two identival 3v, 1 ohm batteries are connected in parallel with like polarity to like. the norton equivalent circuit of this combination is?

27. ## MATH - NEED HELP ASAP PLZ

Toshi works at a pet store. They sold 136 bags of dog food last month. To boost dog food sales, the store manager is going to give all the store clerks a bonus if they can increase dog food (bag) sales by 25% next month. How many bags of dog food do they

28. ## Math

The two legs of a right triangle are in the ratio √3/2. If the hypotenuse is 10 units long, find the area (in square units) of the triangle.

29. ## Statistics

(GRAPH) Sketch a normal curve that has a mean of 15 and a standard deviation of 4. On the same x-axis, sketch another normal curve that has a mean of 25 and a standard deviation of 4. Describe the two normal curves.

30. ## Math

1) if the polynomial p(x) has factories of 12, (x-5), and (x+4), which of the following must also be a factor of p(x)? 2x^2 + 8 4x^2-20 6x^2 -6x-120 x^2-10x+25 2) IF f(x)= -x+7 and g(f(x))= 2x+1, what is the value of g(2)? ^I got 11 The square of a

31. ## Social

it is possible to be part of multiple nations simultaneously. however, in times of crisis, it is essential that loyalty to your country of residence take priority over any other loyalties. To what extent should we embrace the perspectives reflected in the

32. ## geometry

Which of the following of the complement and the supplement of an angle with a measure of 20˚

33. ## Chemistry

Study the balanced equation. 3O_2=2O_3 When 4.26 x 1016 mol of oxygen (O) are converted into ozone, how many mol of the pollutant (O3) are formed?

34. ## geometry

Classify the triangle with angles with measures 48,62 and 70 as acute right or obtuse A acute B right C obtuse

35. ## HELP ME WITH MATH

find the value of x in the triangle | x \ | \ | \ | \ | \ |_ 54 \ |_|________________________________\ A 126 B 234 C36 D144

36. ## american government

All of the following are modern polling methods except: a. pollster interviews b. mail questionnaires c. in-person interviews d. telephone interviews I can't find this answer anywhere in my textbook. Help!

37. ## Great Cities Past and Present

Answer the following questions in a few sentences. Shanghai Questions 1. How did Shanghai merge East and West in the era of colonialism? Who do you think benefited most from the city as it existed at that time? 2. How was Shanghai transformed in the

38. ## math Question

classify the triangle by its angles and its sides. Explain how you knew which classifications to use. top of the triangle is 70 degrees, bottom right is 45 degrees and bottom left is 65.

39. ## New Mexico History

1. Based on the changes in New Mexico's population after World War II, which conclusion is supported? A.) Economic changes made new mexico a difficult place to make a living B.) New mexico climate was believed to be dangerous and unhealthy C.) people were

40. ## Chemistry

Calculate what Mass of CO2 is produced when 34.6g of C8H18 is burned in the air

41. ## physics/electrical circuits

a heater wire length 50cm and a 1mm^2 in cross section carries a current of 2A when connected across a 2 V battery. what is the resistivity of the wire?

42. ## physics/electrical circuits

five resistors each has a resistance R ohms and are connected in parallel. if the equivalent resistance is 20 ohms. find the ohmic resistance of each resistors.

43. ## physics

A 32 kg girl runs up a flight of stairs that is 30 m high. How much work does this require? Not sure how to even start

44. ## physics/electrical circuits

A given wire has a resistance of 17.5 ohms. If its length is 560 m, how much length must be cut-off from the wire in order to reduce its resistance to 10 ohms?

45. ## american government

How would the work of lobbyists be affected if there were no political parties? So I wrote about how there would be a lot of chaos if there weren't any political parties and how everyone would be divided. But I can't figure out this part about the

46. ## physics/electrical circuits

hevenin resistance Rth is found [ ] (A) by removing voltage sources and replace with their internal resistances (B) by short-circuiting the given two terminals (C) between any two open terminals (D) between same open terminals as for Eth

47. ## Chemistry

The half life of tritium is 12.3 yr. If 62.2mg of tritium is released from a nuclear power plant during the course of an accident, what mass of this nuclide will remain after 105 yr?

48. ## stats

Is the chi squared test used for continuous/discontinuous data? I think its continuous.

49. ## Science

A simple of oxygen gas at room temperature and 1.03atm occupies a volume of 22dm³. Find the volume of the oxygen gas at STP?

50. ## Science

I am a world of five letter People eats me If u remove my first letter i will be a form of energy If u remove my 2nd i will be needed 4 living If u remove my 3rd letter i will be a preposition If u remove my 4th letter i will be frink 4 u Ans if u r

51. ## Lab Physic

If T=2π√L/8 Then given that L=100.0±0.1cm(limit standard errors) and T=2.01±0.01s(limit standard error) Calculate the value of g and its standard error. Pls I need answer to that

52. ## Algebr

what is the simpler form of the expression (5d+2)(3d^2+8d-3) A: 15d^3 + 46d^2 + 1d - 6 B: 15d^3 + 34d^2 - 1d - 6 C: 15d^3 - 34d^2 + 1d - 5 D: 15d^3 + s4d^2 - 1d - 5 My answer is A or B.

53. ## Algebra

a square painting is surrounded by a frame. the outside edges of the frame are x inches in length and the frame is 1 inch thick. what is the total area of the frame? A: -4x + 4**??** B: 4x - 4 C: x^2 + 4x + 4 D: x^2 - 4x - 4

54. ## English

I was wondering if anyone could give me an idea for this essay prompt? Describe a situation in which you have made a direct impact on the life of someone else. I just have no idea where to start or write about...

55. ## Physics

You are standing 7 feet from one speaker and 10 feet from another. Both speakers are producing the same sound. If the combined sound from both speakers is barely audible at your location, which of the following could be the wavelength of the sound? Choose

56. ## Physics

Due to interference, a thin film reflects no orange light...it appears dark. If you double its thickness and illuminate it again with orange light, what will you see? Choose one answer only. It will appear dark again. It will appear bright (strongly

57. ## Electronics

I have an amplifier and an attenuator in cascade. I know that when dealing with amplifiers in cascade, the overall gain is A=A1*A2*A3..., but how do I compute the overall attenuation when dealing with more than one attenuator? How do I compute the overall

58. ## Physics,,,,,,,How do I solve this?

Red light always has a lower frequency than blue light. (a) In a vacuum, these two colors are known to travel at the same speed. How do their wavelengths compare in vacuum? Choose one answer only. wavelength of blue > wavelength of red wavelength of red =

59. ## Physics,,,,,,,How do I solve this?

Objects A, B, and C lie in the next room hidden from direct view of the person shown in the diagram. A plane mirror is placed on the wall of the passageway between the two rooms as shown. Which of the objects will the person be able to see in the mirror?

60. ## Statistics

A. In a given normal distribution, the sample mean is 75 and the sample standard deviation is 4. Find the corresponding standard score of the following values: 1. 69 2. 85 3. 70 4. 65 B. In a given normal distribution, the population standard deviation is

61. ## Math

The two legs of a right triangle are in the ratio √3/2. If the hypotenuse is 10 units long, find the area (in square units) of the triangle. Please provide COMPLETE solution and FINAL ANSWER.

62. ## college of education Kangere bauchi state

3×a√1x= 27-x find x

63. ## Physics

If s=at^2+bt+c where is distance and is time, what will be the correct unit of a, b, and c

64. ## ElA / Who Knows if The Moons

Which line from the poem best supports the idea that the moon might be a perfect place?

65. ## Maths

In the rectangle OABC, M is the midpoint of OA and N is the midpoint of AB. OB meets MC at P and NC at Q. Show that QP=PQ=QR. Thanks in advance

66. ## Maths

Sorry In the rectangle OABC, M is the midpoint of OA and N is the midpoint of AB. OB meets MC at P and NC at Q. Show that OP=PQ=QB

67. ## Maths

In the rectangle OABC, M is the midpoint of OA and N is the midpoint of AB. OB meets MC at P and NC at Q. Show that OP=PQ=QB Many Thanks

68. ## Math

First tray apple is 1/5 bad, second tray apple is less 5 apples and 1/4 bad apple, write equation tray 1 in terms of x and solve x

69. ## Math

There is a school that has 6,190 students there is already 216 how many more teachers are needed?