# Questions Asked onMay 5, 2015

1. ## math

Two boats leave a port at the sametime. The first travels at 15km/hr on a bearing of 135 degree. While the second travels at 2km/hr on a bearing of 63 degree . If after 2hours the second boat is directly North of the first boat, calculate their distance

2. ## English

1. It's no use worrying about it. 2. It's no use to worry about it. 3. There is no use worrying about it. 4. There is no use to worry about it. Which ones are grammatical? In #1 and #2, does 'it' on the left refer to 'worrying about it'?

3. ## mathematic

q1 a cone has a base radius of 5cm and height of 12cm(a)calculate it slant height (b)calculate it total surface area,leave answer in terms of it

4. ## trigonometry

Prove : 1 + Sin2A/ Cos2A = CosA + SinA / CosA- SinA

5. ## English

The passage below contains a total of ten pronouns. How many of the pronouns in the passage below are in the nominative case? "Teach me, O Lord the way of thy statutes; and I shall keep it unto the end. Give me understanding and I shall keep thy law; yea,

6. ## Equilibrium constant

Consider the reaction: SO2Cl2(g)⇌SO2(g)+Cl2(g) A solution is made containing initial [SO2Cl2]= 0.022M . At equilibrium, [Cl2]= 1.7×10−2M Calculate the value of the equilibrium constant.

7. ## Geometry

NA ≅ PA, MO Û NA, RO Û PA, MO = 7 feet what is PO? a.7 ft b.49 ft c.14 ft d.3.5 ft Explain?

8. ## Chemistry

Calculate the value of the equilibrium constant for the following reaction: PbI2 (s) + 2I- (aq) PbI4 ^ 2- (aq) The solubility product constant Ksp for PbI2 is 9.8e-9 and the formation constant Kf for PbI4^2- is 3.0e4 I have Ksp=[PbI4^2-] Kf= [PbI4^2-] /

9. ## science

a car travels due east on the level road for 3km it then turns due north at the intersection and travels 4km before stopping the magnitude of resultant displacement of car

10. ## math

a. the line y=7x cuts the circle x^2+y^2=50 at A and B. find the coordinates of A and B. b. show that C(5;5) lies on the circle. c. show that ACB angle C=90degrees. what can you deduce about AB? d.find the equation of the tangent to the circle at C

11. ## math

A certain sum of money was shared among 3 friends, A, B, and C. A received 3/7 of the money, and B got 2/3 as much as A. C received \$49 less than A. a) Find the ratio of B’s money to C’s money. b) How much money did C receive?

12. ## Equilibrium

An equilibrium mixture of the following reaction was found to have [I2]= 0.0325M at 1200 ∘C. What is the concentration of I ? I2(g)⇌2I(g) Keq= 1.5×10−2 at 1200 ∘C Someone please help set this up?

13. ## L.A

The word propose has been borrowed from the Latin propositus meaning, "set forth" in which sentence is the word propose used correctly A. he felt that propose would do more harm than good B. when you set up a propose, be certain it is correct. C. the

14. ## math

The ratio of the number of male lions to female lions in the animal reserves is 21:20. If there are 123 lions in the animal reserve, how many of the lions are female? Thank you!

15. ## Math - 7th grade

Can you check/explain the following: 1. If you roll a number cube 66 times, how many times should you expect to roll a 1? a. 9 times b. 11 times c. 8 times d. 10 times Ans. P(1) = favorable outcome/possible outcome = 66/396 , (1 x 66rolls, and 6sides x 66

16. ## math

An amount of \$27,000 is borrowed for 6 years at 8.25% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?

17. ## Math

Hi(-: A newspaper editor wants to know whether people who buy the newspaper like the paper’s new format. He prints an alphabetical list of all the employee names and asks every fifth person on the list. Is the sample likely to be biased or unbiased?

18. ## Calc

A ball is thrown straight up from the top of a 200 foot building with an initial velocity of 40feet/second. acceleration due to gravity is -32feet/second. a) find a formula for the height of the ball at time t. b) how high does the ball rise before it

19. ## Algebra (Slope)

Find a slope of the line that is parallel to the line containing the points 3,4 and 2,6. A. m = 1 B. m = 2 C. m = -2 D. m = 1/2 I chose B. Is this correct?

The Bureau of Labor Statistics’ American Time Use Survey showed that the amount of time spent using a computer for leisure varied greatly by age. Individuals age 75 and over averaged 0.30 hour (18 minutes) per day using a computer for leisure.

21. ## Math

You spin a spinner that has 8 equal sections numbered 1 to 8.Find p(perfect square or odd).

22. ## Math

The electrical resistance, r ohms, of 1,000 ft of solid copper wire at 77¡ãF can be approximated by the model r = 10,770 / d^2 - 0.37 for any wire diameter, d mils (1 mil = 0.001 inch), such that 5 ¡Ü d ¡Ü 100. What is the approximate resistance, in

23. ## science

Earth's energy sources include both nonrenewable and renewable resources. Name at least three sources of energy that could be used in your house. The describe the ideal energy source for generating most of your home's electricity, and explain why you chose

24. ## English

What is the difference between 'scarf' and 'muffler'?

25. ## Physics

A stone is thrown vertically upward with a speed of 12.0 m/s. (a) How fast is it moving when it reaches a height of 5.0 m? (b) How long is required to reach this height?

26. ## science

What is the difference between specific heat and heat capacity? If you heat 500g of H2O initially at 8C in a 1000 W microwave with 80% efficiency for 2 minutes, what will the final temperature be?

27. ## ELA

Which of the following is a way you could begin an essay that's about the medical uses of iodine? A. Last summer, a splinter in my brother's leg became infected, which led to blood poisoning. He could have prevented the problem with a few drops of iodine.

28. ## physics

4. Three point charges, +6.3 µC, +2.3 µC, and −3.4 µC, lie along the x-axis at 0 cm, 2.6 cm, and 5.2 cm, respectively. What is the force exerted on q1 by the other two charges? (To the right is positive.) The Coulomb constant is 8.99 × 109 N · m 2

29. ## chemistry

Methane burns in air to give carbon dioxide and water. Give a chemical equation . Show(State ) how the mixtures of these gases can be separated

30. ## English

It is good but not good enough. Do I need a comma before "but"?

31. ## Physics

Not sure what formula to use.. im given the molar mass of a molecule the temperature it's at and the distance it traveled, and im looking for the time it takes to travel that distance

32. ## English

1. Don't you get lonely being on your own all day? 2. Don't you get lonely if you are on your own all day? 3. Don't you get lonely when you are on your own all day? =================== Does #1 mean #2 or #3? Can we substitute 'alone' for 'on your own'?

33. ## English

1. Take off the poster from the wall. 2. Take the poster off the wall. 3. Put on the poster on the wall. 4. Put the poster on the wall. ========================= Which ones are grammatical?

34. ## chemistry

In a dry cell, MnO2 occurs in a semisolid electrolyte paste and is reduced at the cathode. The MnO2 used in dry cells can itself be produced by an electrochemical process of which one half-reaction is shown below. Mn2+(aq) + 2 H2O(l) MnO2(s) + 4 H+(aq) + 2

35. ## math

I am trying to find the eigenvalues . They are 0 and 2 but i keep on just getting 0. its a4X4 matrix. [ 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0]

36. ## French

Can someone help me correct this? 1.) Le rat est lit le mur. 2.) Le rat grandit réellement. 3.) La soeur a vu le rat. 4.) Le rat mange sa famille et Eric aussi. 5.) Le méchant Eric ne fait plus ne blagues parce qu'il il un cauchemar.

37. ## Chemistry

Helium is collected over water at 20.°C and 1.16 atm total pressure. What total volume of gas must be collected to obtain 0.597 g of helium? (At 20.°C the vapor pressure of water is 17.5 torr.)

38. ## English

(Speech ) English is the language of opportunities. Why bother to teach indigenous languages? I

39. ## 7th grade math (probability)

1. Cmdr's coffee shop offers a coffee special with coffee syrups of vanilla, chocolate, and caramel. You can also choose between a latte, and cappuccino. How many different coffees can you make for the special? Ans: 6 (VLatte, ChocLatte, CLatte; VCap,

40. ## LO

hi I'm new plz help i need I four factors that could threaten or limit the core function of the media

41. ## SS

the economic of israel saudi arabia iran and turkey could be best described as what i have no clue

42. ## MATH ONE QUESTION!

The student council is making six right triangular pennants to promote school spirit. Each right triangle is 9 inches high and 2 feet long. In square feet, what is the total area of six pennants.

43. ## science

Jennifer made 5 L of punch for her party. Her brother made another 750 mL. If they combine the two batches, how many 180 mL servings would they have? Would there be any punch left over? If so, how much?

44. ## math

Terrell has a water purifier for backpacking. It will purify 1 liter of water in 1 minute. How long would it take Terrell to purify enough water for 4 canteens that each hold 750 mL, and two that each hold 1.5 L?

45. ## Physics

Test Bank, Question 13 In a classroom demonstration, a 79.2-kg physics professor lies on a "bed of nails." The bed consists of a large number of evenly spaced, relatively sharp nails mounted in a board so that the points extend vertically outward from the

46. ## Socials

How did the building of the transcontinental railway benefit the country? I know that First Nations were kicked off their farmland to make way for the building of the railway and for settlers(why would settlers need the land?). Why was the railway so

47. ## eng

I have to make a speech. Is Traditional African Marraige an advanrage to men only not women?

48. ## Physics

we have an unknown mass of water at an initial temp of 35 degrees C and 100 g ice cube at -5 degrees, the final temp is 5 degrees. What is the mass of the water? Specific heat of ice is 2100 j/(kg*k) latent heat of fusion of ice is 333.7 kj/kg

49. ## Art History

What were some propaganda works of art in Baroque and Rococo periods?

50. ## English

Can someone please tell me if this poem is in iambic pentameter? I really don't understand it. Thank you. I love a boy who will never be mine. When he speaks, I don't hear anything else. He is like sunshine on a gloomy day. When he laughs it sounds like he

51. ## Math

If the volume of a cone is 1/3 pi r^2 h, then how can it also be 1/3 pi r^3?

52. ## chemistry 121

If a solution of 0.5 M HOAc dissociates as follows: HOAc + H2O „® H3O+ + OAc-, what is the final [H3O+] in the solution? Ka for HOAc = 1.8„ª10-5. What is the pH of the above solution? What is the Kb for HOAc? not sure of the initial set up please

53. ## Physics

A rowboat is moving at 3 km/hr straight across a river from north to south and the river is flowing east at 4 km/hr. What is the resultant velocity?

54. ## Physics

A paperboy moves at 3 m/s delivering newspaper. He throws a newspaper directly behind himself at 3 m/s, in the frame of reference of someone standing nearby, what is the motion of the newspaper?

55. ## Math

There are 20 books on a summer reading list. In how many ways can you choose 1 per week for 6 weeks.

56. ## math

Sophia bought 3 yards of trim to put around a rectangular scarf. She wants the width of the scarf to be a whole number that is at least 6 inches and at most 12 inches. if she uses all the trim, what are the possible dimensions of her scarf? write your

57. ## Probability

A box contains 95 pink rubber bands and 90 brown rubber bands. You repeatedly choose a rubber band from the box, record the color, and put the rubber band back in the box. The results are shown in the table below. Find the experimental probability of each

58. ## math

you have apple, mapple, oak, poplar, and spruce trees. about how many different groups can u make with three different trees? please help this is alot of work and i have until 4;45 to get it all done!

Which is a table of values for y = x - 6? a.) x | y -5 | 1 -8 | -14 -7 | -14 b.) x | y -5 | 1 -8 | -14 -7 | -13 c.) x | y -5 | -11 -8 | -14 -7 | -13 d.) -5 | 1 -8 | -2 -7 | -1 I think the answer is D!

60. ## math

maya made a sign with an area of 48 square centimeters What could her sign look like

61. ## math

Which of the following side lengths could combine to form a triangle? a. 17, 13, 2 b. 15, 18, 24 c. 5, 9, 14 d. 16, 32, 16

62. ## Stats

From previous records a shipping company knows that the cost to deliver a small package within 24 hours is \$15.50. The company charges \$17.95 for shipping, but guarantees to refund the full charge if the delivery is not made within 24 hours. If the company

63. ## functions

Given a 10 cm by 20 cm piece of paper, if you cut out four equal squares from the corners and fold up the resulting sides you will create an open box. Write an expression for the volume of this box in terms of the side length of each cut‐out square, x.

64. ## functions

A person’s weight, w, on a planet of radius r is given by: w= kr^-2 k < 0 where the constant, k, depends on the masses of the person and the planet.What fraction of the Earth’s radius must an equally massive planet have for a person to weigh ten times

65. ## math

The length of a rectangle is 3 m more than double the width, and the area of the rectangle is 54 m^2. Find the dimensions of the rectangle.

-9(8+4v)

67. ## health

Healthy pregnant and postpartum women should get at least ________ of moderate-intensity aerobic activity a week.

68. ## Math

If I have 5 different types of trees and want to plant them in groups of three, how many different combinations of groups can I make. I worked this out and came out with 30. Am I right? Thanks for your help

69. ## chemistry

How many milliliters of a 4.5 M HCl solution would be needed to react completely with 5.8 g of aluminum? I know the answer is somewhere around 143 mL HCl, but I CANNOT figure out how to find that answer. I have done a conversion from g of Al to mL of HCl

70. ## biology

the respiratory systems of mammals and birds adapted to maximise the extraction of oxygen from air. How has did this happen.

71. ## chemistry

what is a mole

72. ## Statistics

The number of automobile accidents per day in a particular city is believed to have a Poisson distribution. A sample of 80 days during the past year gives the following data. Compute the value of the test statistic. Use α=0.05. Number of Occurrences

Find the amount due on a \$300 invoice received on June 3 and paid on June 11 if the sales terms are 3/15, n/30. I can't figure this out! Please help!

74. ## Accounting

O'Neill Co. has \$296,000 in accounts receivable on January 1. Budgeted sales for January are \$860,000. O'Neill expects to sell 20% of its merchandise for cash. Of the remaining 80% of sales on account, 75% are expected to be collected in the month of sale

75. ## L.A

what is the participle phrase int he sentence? Quickly grabbing my lunch, I raced out the door to the bus. A. grabbing my lunch B. I raced C. out the door D. to the bus What is the prepositional phrase in this sentence? Late last night there was a loud

76. ## Math

Sayed gave an answer of 6 6/7 for the problem 4 2/7 times 1 3/5. Using the estimates, is this a reasonable answer.

77. ## Calc 1

Of the infinitely many lines that are tangent to the curve y = −6 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

78. ## English

1. I lost my watch. I must buy a new one. 2.I lost my watch. I must buy a new it. 3. I saw a big one. 4. He has a small one. Is #1 grammatical? What about #2? Is #2 ungrmmatical? Can we use the pattern, 'a adjective one' only?

79. ## Eng

I need to do a speech of Traditional African marraige is an advantage for men only not women

80. ## college precalculus

Saving. How much money should be invested monthly at 6% per year, compounded monthly, in order to have \$2000 in 8 months?

81. ## Chemistry

When Solid NaHCO3 was placed in a rigid container witha volume of 2.5L and heated to 160 degrees Celsius, the equilibrium was reached. 2 NaHCO3(s) -> Na2CO3 (s) + CO2(g) + H2O(g) At equilibrium, some of the starting material remains and the total pressure

82. ## Math

Determine one of the zeros of the quadratic realtion: y=(x-(k/2))^2-[(k-2)^2/4] I tried to do this by expanding and got to y=x^2-mx-k+1 How are you suppose to do this

83. ## gum

Which is the entire verb phrase in this sentence? My friends and I could have carefully dismantled the playhouse. A. dismantled B. could have dismantled C. could have carefully dismantled D. could have

84. ## geometry and measurement

Lila wants to build a fence around her pool. The pool is 25 feet long by 15 feet wide. The fence is to be 10 feet from the edge of the pool. how many feet of fencing will she need?

85. ## Civics HELP! Ms.Sue

Who would be included in the middle class?

86. ## Venezuela

why did this country fall into dictatorship

87. ## sociology

How do offshoring (also called outsourcing), microfinancing, informal economy, and multinationals affect the U.S. economy? In your discussion, include reference to core nations and globalization.

88. ## math

what is the equivalent fraction for ninety over one hundred

89. ## Math

Apply the following transformations to this parabola. Y=2(x+3)^2-1 A) reflection in the x-axis, followed by a translation 5 units down. I got : y = -2(x+3)^2-6 But the answer is y= -2(x+3)^2-4 Why is it -4 And also. How odd you do reflections in the y axis

90. ## Chemistry

Pt(s)| Fe^3+ (aq, .1M), Fe^2+ (aq, 1M)|| Fe^3+ (aq, ?M), Fe^2+ (aq, .001M)| Pt(s) A.) Write anode reaction B.) Write cathode reaction D.) If E= .14V for this cell, calculate conc. of Fe^3+ on the right half of the cell E.) What is the max amount of work

91. ## Economics

can someone help me put (yuan depreciates against the dollar into one stanza of a song.

92. ## math

5 and 1/4=4 and what numerator over 4

93. ## chemistry

Copper dissolves in dilute acid ( H2so4) to form a pale blue solution Which of the following equation is correct 1) Cu + H2sO4-----> CuSO4 + h2 2) Cu + 2H2so4--->Cuso4 + 2H20 + 2SO2

94. ## math

line of symmetry

95. ## Science

WHICH SYSTEM HAS THE GREATEST TIDAL EFFECT? EARTH-SUN OR EARTH-MOON?

96. ## Probability

There are 9 marbles if 3 different colors where 2 marbles are selected at random without replacement and the probability is 1/6

97. ## math

Multiplication is defined as repeated addition. Use the word repeated to define exponential form. Justify your reasoning.

98. ## math

A Thai restaurant offers the curry special: curry vegetables with your choice of beef, chicken tofu or shrimp. Choose yellow curry, green curry or red curry. Drink included: tea or soda. If a customer makes all choices randomly, what is the probability

99. ## Algebra

A bank teller counts her \$10 and \$5 bills at the end of the day. The total value of the money is \$595. Let f represent the number of \$5 bills. I have to write an equation that represents the total value of the money. I know f = 5 and 2f = 10 but I am stuck

100. ## geometry

EF is a median of trapezoid ABCD. If the length of EF is 14x, and the length of CD is 20x, what is the length of AB in terms of x?

101. ## accounting

What is the closing entry to allocate a net income of \$48,000 to Sara, Ellen, and Mary? Respective capital balances are \$30,000, \$40,000, and \$30,000. No agreement was made for division of income. A. Debit Income Summary \$48,000; credit Sara’s Capital

102. ## Maths Problem

Anyone, Please Help me. the figure is not drawn to scale. it shows two squares. the total area of two squares is 65 sq cm. the length of the smaller square is more that half the length of the larger square. given that the length of each square is a whole

103. ## question

Tomorrow is my English exam. do you think I can get high marks?

104. ## Easy math

Question: Susie got the following scores for the first 18 holes of miniature golf: 3,4,2,1,4,4,2,3,4,3,2,1,2,3,3,5,4 and 3. If par for the first 18 holes is 45 strokes, is Susie's stroke total over, under, or equal to par? - Answer: do I add 18 by 45?

105. ## Chemistry

A piece of metal of mass 18 g at 107◦C is placed in a calorimeter containing 56.5 g of water at 25◦C. The ﬁnal temperature of the mixture is 56.3◦C. What is the speciﬁc heat capacity of the metal? Assume that there is no energy lost to the

106. ## IDOC

1/b (2b-10)=17

107. ## Geometry

True or False? In an obtuse triangle all the angles are obtuse. I think it's false but I'm not sure.

108. ## physics

Consider three charges arranged in a triangle as shown. + - + 0.266 m 0.599 m −3.4 nC 8.1 nC 4.8 nC y x What is the net electric force on the charge at the origin? The value of the Coulomb constant is 8.99 × 109 N · m2 /C 2 . Answer in units of N. 010

109. ## chemistry

How many moles are contained in 3.25 L sample of an ideal gas at 25oC and 204 kPa?

110. ## Math

Determine which function has the greater rate of change in this question? These are the points on the graph. A. (-1,0), B(0,1) C(1,2) This is the table X, -1,0,1,2 Y, 0,1,2,3 A. The rates of change are equal. B. The graph has a greater rate of change. C.

111. ## 336

Let x represent the number pfessages posted each month on a social netwroking website. Answer: Continuous Let x represent the length of time it takes to get to work. Answer discrete Am i correct???

112. ## Math

A student covers the outside of a show box with construction paper. If the student does not cover the lid, what is the surface area that is covered? Please show work. Possible answers: A) 982.25 B) 1433.50 C) 1964.50 D) 5044.50

113. ## algebra

the speed of a passenger train is 6 mph faster than the speed of a freight train. The passenger train travels 330 miles in the same time it takes the freight train to travel 300 miles.Find the speed of each train.

114. ## Math

Q. Sammy loves miniature golf. Last year he played 572 games of miniature golf. Assuming that Sammy played the same number of games each week, how many games per week did Sammy play last year? Hint: there's 52 weeks in a year! A. Do I divide 572 by 52?

115. ## Math

What does a and c stand for in the quadratic function Ax^2+bx+c

116. ## chemistry

Please help me with this question. Many thanks. Given a vial of IL-23 power 10ug. Calculate the amount of water require to reconstitute so that the final volume will be 100ug/mL.

117. ## Math

How do you find the quadratic equation, in standard form, that has the roots x= (2±√5)/3

118. ## Math

A) Let x represent the number of messages posted each month on a social netwroking website. B) let x represent the length of time it takes to get to work. I got A) continuous B) discrete Am i correct??

119. ## Analytic Geometry

the segment XY X(-1,2) , Y(4,11) is to be extended to point Z which is 4 itmes the length of XY. Find the coordinates of Z

120. ## chemistry

Pka of Ch3CO2H is 4.75 What is the equilibrium constant of the equation: Ch3Co2 (aq) + H20 (l) --> CH3CO2H(aq) + OH-(aq)

121. ## Maths

Please help.... The figure is not drawn to scale. It shows two squares. the total area of two squares is 65 sq cm. the length of the smaller square is more that half the length of the larger square. given that the length of each square is a whole number,

I got 20 days left for jee advanced. How should I manage time table for preparation