# Questions Asked onMarch 31, 2015

1. ## BUS math

Bari Jay a gown manufacturer received an order for 600 prom dresses from China. Her cost is \$35 a gown. If her markup based on selling price is 79%, what is the selling price of each gown? Round to the nearest cent.

2. ## MATH

716-{(1950/5 of 3)-(4+217/7)}

3. ## physics

A copper atom has 29 electrons revolving around the nucleus. A copper ball has 4x10^23 atoms. What fraction of the electrons be removed to give the ball a charge of +9.6uC?

4. ## Math

1. What are the mean, median, mode, and range of the data set given the altitude of lakes in feet: -11, -28, -17, -25, -28, -39, -6, and -46? A. Mean = -25, Median = - 26.5, Mode = -28, Range = 40*** B. mean = -25; median = -40; mode = -26.5; range = 28 C.

5. ## Chemistry

A 0.3423 g sample of pentane, C5H12, was burned in a bomb calorimeter. The temperature of the calorimeter and the 1.000 kg of water contained therein rose from 20.22°C to 22.82°C. The heat capacity of the calorimeter is 2.21 kJ/°C. The heat capacity of

6. ## Mathematics

The distance to the nearest 100,000 km from the earth to the moon is given as 400,000 km. The average speed to the Nearest 500km/h is 3500km/h. Calculate the least and greatest time it takes the rocket to reach the moon I figured out the formula speed =

7. ## Algebra proof

Prove that if w,z are complex numbers such that |w|=|z|=1 and wz\=-1, then w+z/1+wz is a real number I so far i have determined that w and z both have to equal less than one, but i cannot figure out how to prove this. if wz does not equal one it must mean

8. ## science

The alleles for brown eyes (B) are dominant, while those for blue eyes (b) are recessive. If Lesley’s mother has the genotype BB and her father has the genotype bb, what is Lesley’s genotype? What is her phenotype?

9. ## prob. & stat

suppose 240 nursing students took a certification test that is worth 140 points. the five number summary for the scores is shown here. about how many students had a score of 130 or less min. value=68, Q1=110, median=125, Q3=130, max-value=138

10. ## algebra

the graph of a proportional relationship passes through (12,16) and (1,y) find y. can someone please walk me through this?

11. ## reading and writing

When you write your ideas quickly and don’t worry about punctuation, what writing strategy are you using? A. Narrowing B. Mapping C. Styling. D. Freewriting my answer is d.

12. ## Statistics

It is pretty common across most schools to find the grades at the MBA level divided between A's and B's. As such, you expect the mean GPA to be around 3.50. Using the sample of 200 MBA students, conduct a one-sample hypothesis test to determine if the mean

13. ## Math

Between 6 A.M and 10 A.M the temperature rose by 5F. Between 10 A.M and 2 P.M the temperature rose by 6F. Between 2 P.M and 6 P.M the temperature rose by 0C. Would you be able to tell how much the temperature rose since 6 A.M? Why or why not?

14. ## reading and writing

Ron and Quincy are organizing the facts in their essays. Ron says putting details in spatial order means to organize them according to the order in which they happened. Quincy says it means putting the details in order according to their location. Who is

15. ## science help check

3. A metal from group 1 and a nonmetal from group 17 are? A. Not likely to bond B. Likely to form a covalent bond C. Likely to form a ionic bond D. Likely to form a metalloid is it c pls help me

16. ## Geometry

The lengths of the sides of a triangle are 6 cm, 7 cm and 9 cm. In a similar triangle whose perimeter is 110 cm, what is the length of the longest side, in centimeters? i know that the first triangle's perimeter is 22, but i'm not sure how this will help

17. ## Algebra 2

A sound wave is modeled with the equation . y=1/4cos 2pi/3treta a. Find the period. Explain your method. b. Find the amplitude. Explain your method. c. What is the equation of the midline? What does it represent? A- The period can not be found because

18. ## math help

how do prove that this equation has rational roots for all rational values of K 3x^2+kx-k=3x

19. ## chemistry

How much carbon dioxide measured at 25.0◦C and 821 Torr would be produced by the combustion of 319 g of glucose (C6H12O6)? 1. 40.1 L 2. 20.2 L 3. 241 L 4. 3.37 L

20. ## Trigonometry (identities)

Simplify: 1. sin(α+β)+sin(α-β) 2. (-8cosxsinx+4cos2x)^2 + (4cos^2x+8sinxcosx)^2 3. sqrt(sin^4xcosx) * sqrt(cos^3x)

21. ## Math

2. Given the data 12,39,21,18,24,17,12,25 a what is the outlier in the data? b what is the mean with the outlier? c what is the mean without the outlier A. 12;21;18.4 *** B. 12; 18.4; 21 C. 39; 21; 18.4 D. 39; 18.4; 21

22. ## Algebra

You pay \$1 to rent a movie plus an additional \$0.50 per day until you return to the movie. Your friend pays \$1.25 per day to rent a movie. a: make tables showing the costs to rent a movie up to 5 days. \$1.50 \$2.00 \$2.50 \$3.00 \$3.50 \$1.25 \$2.50 \$3.75 \$5.00

23. ## physics

At 7.15 cents per kilowatt-hour, what does it cost to leave a 75.0W light burning 24.0 hours a day?

24. ## reading and writing

To narrow a general topic you've selected, which pair of techniques is most likely to be effective? A. Freewriting and questioning B. Using a branching diagram and consulting your journal C. Questioning and choosing an issue that interests you D. Branching

25. ## Algebra 2

What are the points of discontinuity? Are they all removable? Please show your work. ￼￼￼ y=(x-5) / x^2 - 6x +5

26. ## pls help me dr.bob22 science

Which of the following demonstrates that reactants and products are chemically different? A.Zn + 2HC1 = 2HCl + Zn B. Zn 2HCl = H2 + 2 nCl2 C. H20 + C4H10 = H20 + C4H10 D. C4H10+ H20= C4H10 +H20 is it b pls help me

27. ## Physics

Which best explains why openness is important to the progress of science?

28. ## math

given that the rectangle above has a perimeter of 34 units, find m

29. ## science help.. pls help me dr.bob22 or damon

In a water molecule, 2 atoms of hydrogen and 1 atom of oxygen share electrons. A _______ bond, is found in water molecule is it chemical bond pls help me

30. ## science PLZ HELP

electric charges that are different A) attract each other B) repel each other C) exist in pairs D) do not interact Magnetic field lines around a bar magnet A) are only perpendicular to the magnet B) spread out from one pole and curve around the other C)

31. ## Math

4. Which explains why the sequence 81, 3, 1/9,... is arithmetic or geometric? A)The sequence is arithmetic because it decreases by a factor of 1/27 B)The sequence is geometric because it decreases by a factor of 1/27 C)The sequence is arithmetic because it

asked by Jeff the Killer Hates Math
32. ## calculus

cos2x=secx find x

33. ## chemistry

4.90 gram of KCLO3 is heated. it shows a weight loss of 0.384 gram . what is he percent of original KCLO3 which has decomposed .

34. ## Maths

Ann bought 5/8kg of tomatoes to make a salad dish.2/5 of the tomatoes were rotten and the rest were fresh.What was the mass of fresh tomatoes.

35. ## math

Pre algebra what should you do if you cant sleep

36. ## calculus

The operating cost, C, in dollars per hour, for an airplane cruising at a height of h metres and an air speed of 200km/h is given by: C = 4000 + h/15 + 15000000/h for the domain 1000 ≤ h ≤ 20000. Determine the height at which the operating cost is at a

37. ## poetry

what is the prose paraphrase of the poem The Unknown Citizen

38. ## Science

What is the concentration of NH3 in 0.250M solution of NH4Cl?

asked by Jeet shah
39. ## science help.. pls help me dr.bob22 or damon

Sodium Chloride is formed when atoms lose and gain electrons Carbon monoxide is formed when atoms share electrons. In both substances atoms are held together by a(n) is it chemical bond pls help me

40. ## precalculus

Let z1=2(cos 2pi/3+isin 2pi/3) what are z1^(1/3)?

41. ## Webster University

Your company is considering buying a company that is forecasted to have earnings as shown below. Assuming these estimates to be perfectly accurate, what is the present value of this stream of earnings? Assume an interest rate of 5.5% Year 1 \$50,000 Year 2

asked by T Smith
42. ## basic programming principles

2.Write only the select case statements for the following problem statement. The marital code of a person is stored in the variable called marCode. Display the corresponding description on the screen. Provide for an incorrect marital code Marital Code S

Umm.. Reed if it is ok with you I can copy and paste my essay and then u can check it then tell me and then remove it. Reed u helped me yesterday for the hook!

44. ## AP Exams?

I am in AP Chemistry and AP U.S Hisotry and I have planned on taking the tests. So far I have made an A+ in APUSH, but I an B in AP Chem. I've done kinda bad on the tests I've taken in there and I don't think I will do good on the Ap exam. I think I have a

45. ## Triangles

Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long.

46. ## MATH

How could you find out which weighs more, one ton of pillows or one ton of bowling balls?

47. ## algebra

Find the square roots of 3+4i. The answer should be in the form a+bi? The answer that i got was 2+i, but it did not seem to work. Any advice on what might be happening in this problem, and how to solve it?

48. ## English

I need help answering some To Kill A Mockingbird questions 1.When Scout is talking about the Ewells' living conditions what is her tone? Is it sympathetic or disparaging or objective? I think it's sympathetic 2. When the story is talking about Mayella 's

49. ## art

1.which artist is most likely to create a floor plan? a)visual effects designer** b)architect c)landscape architect d)cartoonist

50. ## english

What do the pauses in Arsat’s story, which occur when he speaks of Diamelen, indicate about Arsat’s emotional state?

51. ## science

a life cycle in which organisms switch back and forth between diploid and haploid stages

52. ## chemsistry

If one pound (454g) of hexane combusts with 185 grams of oxygen which reactant is the limiting reactant and how many grams of carbon dioxide are produced? how do I do this? How do I set it up?

53. ## reading and writing

A _____________ should make clear what the paragraph is about and express a view about the subject matter. A. title B. conclusion C. topic sentence D. thesis statement my answer is c.

54. ## Chemistry

A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ).

55. ## history

I have to create a mind map about the Great Depression. there are seven factors contributing to the effect. I need help creating a visual aspect to show the causes and effect. ex. (it's taken) a hockey net that says Great Depression and different sports

56. ## Psychology

Help me create a mnemonic device to remember the Four Basic Units of Language: Phonemes, Morphemes, Syntax, and Semantics

57. ## Economics

Which is an example of thinking at the margin? A. figuring out what you will give up and what you will gain by hiring a new worker B. thinking about whether or not to go on a vacation to a warm beach C. drawing plans to build an extra room on an old home

58. ## CHE

A sample of water was tested with AgNO3, and gave a white precipitate. A.What ion was most likely present? B.What chemical would be the most likely source for the ion? So far I have that Chloride ion was most likely present and detected by AgNO3, but I

59. ## English 12

The detective asked me if I had heard any strange noises the night before.

60. ## Math

What percentage of the boys chose walking? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 30% B. 45% C. 25% D. None of these Is the answer A? Thank you

61. ## Math

Lamar wants to slice a 35-ounce tomato and a 28-ounce tomato into pieces of the same weight. He finds the greatest common factor of the tomato weights to determine the weight of each piece. What is the greatest common factor of 35 and 28? Show your work.

62. ## english

can you please tell me if i'm correct or not? write A if the sentence is active or P if it is passive. 1. max and his uncle towed the car to a downtown garage. P 2. lightning hit our house during last night's storm. P 3. the opening remarks were made by

63. ## Art Pls help

Which task is typical for fashion designer? A) designing a storyboard B) researching new trends*** C) organizing an exhibition D) creating a blueprint Patterns and colors on 17th to 19th century kimonos were used to identify the hometown of which type of

64. ## science help.. pls help me dr.bob22

A metal from group 1 and a nonmetal from group 17 are? A. Not likely to bond B. Likely to form a covalent bond C. Likely to form a ionic bond D. Likely to form a metalloid is it c pls help me pls help me

65. ## Math

Find the value of the following matrix's. 1.) [-5 2 -8 -7] 2.) [3 -4 7 9]

66. ## Physical sci

A copper rod is 22 mm long at room temperature (20c). What length does it expand to when placed in a 757 degrees Celsius furnace?

67. ## Math

Juanita invests \$3,500, at 8% interest, compounded annually for 4 years?

68. ## math - linear equation

How do I write a system of equations that is linear and graph? Thanks

69. ## Statistics

In the past year, Jack's Pizaa Resturant grossed more than \$1500 a day for about 83% of its business days. Suppose 8 days are randomly selected, approximate the probablity that exactly 6 days will gross more than \$1500 in a day.

70. ## Math

What percentage of the students who chose biking were girls? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 30% B. 37.5% C. 40% D. none of these Is the answer D? Thank you

71. ## science help.. pls help me dr.bob22 or damon

Dalton's ideas that atoms cannot be divided into smaller parts was disproved by the discovery of the_____ is it electrons

72. ## Physics

If 3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge

73. ## business math

Anny invests \$8,500, at 6% interest, compounded quarterly for 12 years?

74. ## statistics

If the null hypothesis is rejected at the .01 alpha level, it will be rejected at the .05 alpha level. Is this correct?

In ￼ ,

76. ## chemistry to MathMate

Chemistry - CJ, Tuesday, March 31, 2015 at 10:53pm I am experiencing a major block.... I can't say.... 1micrometer= 1000nm 5micrometer= x..... because I'll get back the same thing So please help me, tell me the answer please.

77. ## precalculus

Let u have a length of 20 and direction of 60 degrees, and v= 5i-3j what is u? what is abs(2v-u)?

78. ## precalculus

Let z1=2(cos 2pi/3+isin 2pi/3) what are z1^(1/3)?

79. ## Physics

A uniform cylindrical spool of mass M and radius R unwinds an essentially massless rope under the weight of a mass m. If R = 12 cm, M = 400 gm and m = 50 gm, find the speed of m after it has descended 50 cm starting from rest. Solve the problem twice: once

80. ## Math

Which of the following types of information is NOT suited for display on a scatter plot? A. Relationship between age and number of books read in a year. B. Relationship between height and shoe size. C. Relationship between calories sonsumed and body

81. ## precalculus

Let u= and v= A. what is the angle between u and v? B. find projvU C. reoslve u into u1 parallel to v abd U2 perpendicular to v.

82. ## physics

A man of mass 90kg carries a block of mass 20kg up a vertical ladder at length 5m. What work has the woman done. (take g 10m /s)

asked by omodele queen
83. ## Chemistry

Nanotubes are rolled up cylinders of graphite with diameters of about 1nanometer, and lengths in micrometers. (I) If a nanotube is 5 micrometers long, how many diameters does this represent?

84. ## Art

French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an

85. ## us history

Which party endorsed the wilmot proviso?

86. ## reading and writing

Paddy and Clare are writing effective conclusions. Paddy's conclusion will summarize his main point and reaffirm his theses statement. Clare's conclusion will take the readers beyond the scope of her essay. Who is writing an effective conclusion? A. Both

87. ## Math

I don't understand how to do this problem if someone can please help me to figure it out thank you. A survey about the student government program at a school finds that of 245 students: -218 students like the program -27 students think the program is

88. ## basic programming principles

.Do the planning and write an algorithm to solve the following problem. Prepare test data for the example to test all possibilities and draw a trace table. Sam works at a coffee company where all the employees receive a bonus of R700, except the employees

89. ## precalculus

Let u= and v= A. what is the angle between u and v? B. find projvU C. reoslve u into u1 parallel to v abd U2 perpendicular to v.

90. ## precalculus

Let u have a length of 20 and direction of 60 degrees, and v= 5i-3j what is u? what is abs(2v-u)?

91. ## Philosophy

Are humans "blank slates" when they enter this world or do we as humans come into the world with certain truths or idea (whether logical, mathematical, scientific, or moral)?

92. ## English

Change the passive verbs to active verbs. Can you please tell me if these are correct or not? 1. The candles were lit by Father after we were called to dinner by him. Father lit the candles after he called us to dinner. 2. A beautiful sweater was received

93. ## physics

A 25HP electric motor turning a 1800 RPM will produce how many foot pounds of torque?

94. ## physics

. An open tank holding 400 cubic foot of air at atmospheric pressure at 70 degrees F and heated to 160 degree F. What is the volume of air that escapes from the tank?

95. ## algebra

A gold ribbon is to be placed around the outside of each rectangle of the frame. Write a polynomial expression to represent the amount of ribbon needed.

96. ## physics

A 2inch diameter pipe has been chosen to pass 65 GPM. Can this diameter be used for the suction line? If not , what line diameter should be specified?

97. ## Chemistry

A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ). I know that I have to use w=-p deltaV but how do i find the Final and Initial volumes?

98. ## English

The MACARONI AND CHEESE ____ ready to eat now. A. is****************************** B. are C. were Neither the CAR nor our COUSINS (can, could) be found. A. can B. could************************** Which of these words has the same denotative meaning as, but

99. ## Algebra 2

Please show your work to find the mean and standard deviation of the data. Round to the nearest tenth. 20, 16, 18, 14, 9, 20, 16 I know i have to add all them and divide the answer by 7. And that's my mean , But Idk how to get the standard deviation ?

100. ## ss

what was the main goal of suffrage leaders such as elizabeth cady stanton, susan b. anthony, and anita pollitzer? a. create a national temperance movement b. improve the prison system c. get women the right to vote d. ensure equal pay for equal work i am

101. ## Chemistry physics

3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge

102. ## tsu

what mass of aluminum must be used to produce 42.56 g of iron? fe2o3(s) + 2al(s) → 2fe(l) + al2o3(s)

103. ## chemistry

You measure the pH of a 0.50 M unknown acid solution using a pH meter and it is found to be 1.74. What is Ka for the acid? I know ph=-log{H+} Where do I go from here?

104. ## reading and wrting

What type of information do you need to support your thesis statement? A. Theory B. Back-up C. Reports D. Evidence my answer is

105. ## precalculus

algebraically identify the symmetries of r=2sin(2theta)

106. ## precalculus help

Let z1=2(cos 2pi/3+isin 2pi/3) what are z1^(1/3)? do not even know how to apply demoivre theorem?

107. ## chemistry

You find the Ka of your unknown acid is 6.3x10 -5 . If you are being asked to make a buffer at pH 4.00, what is the appropriate ratio of A- to HA to be combined in your flask?

108. ## math

I can't figure this one. At a math contest,12 problems were given. Five points were awarded for each correct answer,and two points were deducted for each incorrect answer. Matt's score was 39.How many correct answers did he

109. ## reading and writing

Terri and Jose are preparing outlines. In preparing an informal outline, Terri will use key words and phrases to list her main points. In preparing a formal outline, Jose will use capital letters and Roman numerals to list the important points. Who is

110. ## easy math

√(100 - 20√5 + 5 + 15 - 6√15 + 9) solve.

111. ## Reed

Reed I posted my essay, sorry I just looked at it so I just posted it!

112. ## Chemistry

Chemistry - MathMate, Tuesday, March 31, 2015 at 2:56pm 1m = 1000 mm (millimeter) 1 mm = 1000 μm (micrometer) 1 μ = 1000 nm (nanometer) If the tube is 1 nm in diameter, then veryify that 5 μm = 5*1000 nm = 5000 nm = how many diameters? Chemistry -

113. ## Art help please

French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an

114. ## basic programming principles

Do the planning and write an algorithm for the following questions. Each problem contain a do loop. When planning your algorithm, decide which type of loop will be best suited to solving the particular problem (pre-test or post-test). If the problem

A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ). I know that I have to use w=-p deltaV but how do i find the Final and Initial volumes?

116. ## Math

A bathroom has a length of 10 feet and a width of 9 feet.Kade wants to put down tiles on the floor that are each 1 square foot.Then he will put a baseboard along the edges where the walls meet the floor.How many tiles does Kade need?How much baseboard does

117. ## Calculus 1

How do you find the derivative of 1/3(x^2+2)^3/2 ? Please help

118. ## MATH

I'm sure what if this is the right answer that the question is looking for. since my eng. not that good i have hard time understanding. Please help me. Question: write a situation that can be modeled by the following linear system. Explain what each

119. ## statistics

What is the difference between alpha level and critical values?? Does the alpha level just help determine the critical value?

120. ## mania

Amita decides that she wants the molds to have a square base from originally having a rectangular prism with a volume of 28 cubic centimeters - how many possible molds can she use

121. ## MATH

David took a survey of 12 people to find out what their favorite animal is. Of those, ⅓ of the people said they liked dogs best. How can you find out him many people liked dogs best?

122. ## Math

Sarah is lining a square tray with 1 inch square tiles. The side length of the tray is 9 inches. How many tiles does Sarah need?

123. ## Physics

A 0.20kg ball on a string is whirled on a vertical circle at a constant speed.When the ball is at 3 o'clock position, the string tension is 20N.Find the tensions in the string when the ball is at 12 o'clock and 6 o'clock positions

124. ## math

Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long

125. ## reading and writing

When you write, the tone, vocabulary, and type of information you choose should vary depending on your A. audience. B. education. C. biases. D. values. my answer is a.

126. ## sonnet

i need to write a sonnet

127. ## Finance - Loans problem

A company borrows \$170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7% compounded monthly. At the same time the company sets up a sinking

128. ## reading and wrting

What is the most likely purpose of the essay from which the following passage was taken? Having been raised on a dairy farm in rural Minnesota, Lorie Ann Kline was having trouble adjusting to life in the city and to Central High School. In a conference

129. ## math

Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long

130. ## algebra

State if the inverse of y=x^2-4 is a function. So, I got y= squareroot of x+4 I'm don't think it's a function because of even roots, but I'm not sure

131. ## floral desgin

A pick machine affixes a A. wood pick or a steel pick to a flower. B. stemmed flower to a foam base. C. wood pick to a flower stem. D. steel pick to a flower stem. i said it was b im not sure thoe

132. ## math

equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long

133. ## Chemistry

56mL of a stock solution of hydrobromic acid, HBr, is added to 85mL of water, yielding a solution having a pH of 1.0. What was the molarity of the stock solution? I know Molarity = moles of solute/ liters of solution

134. ## Math

Nina wants to buy a bicycle that costs \$150.00. She had saved 6% of the total cost of the bike. How much money has Nina saved? How much does Nina have left to save before she can buy her bike?

135. ## cda

Outside play may help to provide children with vitamin _______, although other sources may also be important. A. B B. D C. A D. C My answer is B

136. ## Math

asked by Emo Tatto Guy
137. ## Finance - Loans problem

Can someone please explain how this problem is laid out to solve.A company borrows \$170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7%

138. ## Math

When interest is compounded once a year, the formula for compound interest is A=P(1+r)t in the formula, A represents the amount of money after t years, p represents the principal, and interest rate written as a decimal. If p=\$500 r=3% and t=2 What is the

139. ## statistics

A brewery's filling machine is adjusted to fill bottles with a mean of 31.9 oz. of ale and a variance of 0.004. Periodically, a bottle is checked and the amount of ale noted. (a) Assuming the amount of fill is normally distributed, what is the probability

140. ## Chemistry

What would be the consequence of competing equilibria, such as from other ingredients in an aspirin tablet in a titration lab results? What if there were several pain relievers in the same tablet? How could the error from these interferences be minimized?

141. ## science

a racer in a kayak travels a 300-meter river course at an average speed of 3 meters per second. how long does it take to complete the course?

142. ## CDA

Licensing requirements ensure minimum A. space. B. children. C. requirements. D. standards. My answer is C

143. ## social studies

which city was divided into two zones: one communist and one noncommunist? a)Berlin b)Moscow c)Prague d)Warsaw idk can someone help me?

144. ## maths

fruit salad recipe needs 1/5 apples and 3/5 grapes. which fruit required in grater amountand by how much

145. ## Chem

How many grams of ice at 0°C and 101.3 kPa (standard pressure) could be melted by the addition of 0.80 kJ of heat?

146. ## chemistry

How many ml of molar sulfuric acid is to be added to 50.0 ml of 0.250 molar sodium hydroxide solution to neutralize it completely . cannot post reaction sorry ..

147. ## English

I am doing argument essay what does it mean evidence to support my argument?

148. ## science

find the velocity with which it hits the ground when a body is projected horizontally from top of a tower 100 meter high with a velocity of 9.8 meter per second.

149. ## Ethics & Social Responsibility

Which group of people might not be fully autonomous in choosing to be a research subject?

150. ## cda

Prop boxes, uniforms and other clothing, and a variety of dramatic sets can help children structure A. tie dying. B. hide-and-seek. C. sewing. D. fantasy play My answer is D

151. ## Math

Given an iterated map, ie. x_n+1 = 3* x_n / (x_n +1), how do we find all of its fixed points?

152. ## ABC

a person with stone in his hand standing on a roof of a buliding how can he measure height of buliding?

153. ## This is nothing to do with school

A cinema sells adult tickets and child tickets. The total cost of 3 adults and 1 child is £30 The total cost of 1 adult and 3 children is £22 What is the cost of adult and child tickets

154. ## english

When an adverb modifies a verb with a helping verb, the adverb should generally be placed

155. ## fluids

A man unloads a truck that has 25 15 pound cinder blocks to a pallet 12 feet away. A. How much work has he done?B. How much power if he finished in 8 minutes?C. How much HP was exerted?

156. ## fluids

60 cubic feet of air at 30 PSIG and 50 degrees F is compressed to 80 PSIG and 110 degrees F. What is the final volume?

157. ## math

The distance to the nearest 100,000 km from the earth to the moon is given as 400,000 km. The average speed to the Nearest 500km/h is 3500km/h. Calculate the least and greatest time it takes the rocket to reach the moon I figured out the formula speed =

158. ## fluids

. A nut is frozen on a shaft and it will take a minimum 190 foot pounds to break it free. How long a cheater (extension) will a 120 pound person need to put on to an adjustable wrench with a 6inch handle?

159. ## Chemistry

16. From the standard enthalpies of formation, calculate the Horxn for the reaction: (Hof = -151.9 kJ/mol for C6H12.) C6H12(l) + 9 O2(g)  6 CO2 (g) + 6 H2O(l)

160. ## reading and writing

Which of the following is not a good suggestion for writing an introductory paragraph? A. Describe a hypothetical situation. B. Cite a surprising fact or statistic. C. Never asks questions. D. Use a quotation to help illustrate your thesis. my answer is c.

161. ## Math

Can mean be found from a histogram? Explain

162. ## chemistry

How many grams of CO2 are produced when 11.47 moles hexane combust? Show work please

163. ## Maths

Jenny gave 1/6 of her salary to her mother and saved 2/5 of her remaining salary. what fraction of her total salary was saved

164. ## Physics

The force acts on a 1.7kg object whose initial speed is 0.44m/s and initial position is x = 0.27. Find the speed of the object when it is a the location x = 0.99m?

165. ## cda

Which of the following terms correctly describes the partnership between caregivers and families? A. Contractual B. Nuclear C. Complementary learning framework D. Public-private I choose B

166. ## geometry

An obtuse isosceles triangle has one angle with a measure of (2x) degrees and another angle (5x) degress. What is the measure of the third angle of the triangle?

167. ## chemistry

If one pound (454g) of hexane combusts how many grams of water are produced? How do u set this up? Start it?

168. ## Chemistry

Write a balanced equation for the combustion of gaseous ethylene (C2H4), an important natural plant hormone, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water

169. ## maths

in a class 3/4 of the pupils wore spectacles 1/3 of the pupils who did not wear spectacles were boys what fraction of all the pupils were boys who did not wear spectacles

170. ## math

I need a formula. At a math contest,12 problems were given. Five points were awarded for each correct answer, and two points were deducted for each incorrect answer. Matt's score was 39. How many correct answer did he have

171. ## Maths

sonia had shells of three different sizes 4/9 of the shells were big and 2/5 of the remainder were medium sized the rest of the shells were small what fraction of the shells were small

172. ## 7th grade math (probability)- additional questions

Here are additional problems that weren't included in original post from 3/30. 4. There are 5 different color jolly ranchers in a bag - 10 cherry, 15 watermelon, 12 grape, 10 apple, and 8 raspberry. What is probability that you'll choose raspberry? Ans:

173. ## math help

how do i solve for x and y x+y=2 and 3x^2+4xy+y^2=6

174. ## Maths

Nitin made some origami animals 5/8 of them were cranes and 1/6 of the remainder were frogs the rest were grasshoppers what fraction of the origami animals were grasshoppers

175. ## science

How many moles of li2so4 is required to prepare 300ml of a 0.5 m solution

176. ## statistics

1. Suppose the estimate of a proportion of a normal population is to be within 0.05 using the 95% confidence level. How large a sample is required if: a. It is known from previous studies that p = 0.3? b. There is no prior knowledge of p? 2. Each of the

177. ## Chemistry

A reaction at 2.43 atm produces 20.0 L of a gas and evolves 75.3 kJ of heat (exothermic). Calculate the change in internal energy of the system (in kJ).

178. ## Math, statistics

Problem 1: The PDF of exp(X) (6/6 points) Let X be a random variable with PDF fX. Find the PDF of the random variable Y=eX for each of the following cases: For general fX, when y>0, fY(y)= Solution: f_x(ln(y))/y When fX(x) = {1/3,0,if −2

179. ## Mathemtical programming

Consider the following primal LP problem. Max 𝑍=2𝑥1+5𝑥2+7𝑥3 s.t. 𝑥1+2𝑥2=6,and 𝑥1≥0, 𝑥2≥0,𝑥3≥0. (a) Graph the feasible region. [4] (b) Find the gradient of the objective function, and then find the projected gradient onto

180. ## Math

Point M(4, 3) is translated according to the rule (x, y) (x+2,y-5). What are the coordinates of of M?

181. ## Social Studies

What is a likely example that India supported East Pakistan's effort to gain Independence from Pakistan?

182. ## algebra

I have to solve this problem do not understand Chang picked 36 Apples and kept 8 of them. He split the remaining apples among his sister and brother most write an algebraic expression on how many his sister and brother got.

183. ## Algebra

On a school field trip, the bus travels 16 miles in 30 minutes. find the speed of the bus in miles per hour. use the equation D = RT, where D is distance, R is rate and T is time. The speed of the bus is _____ miles per hour

184. ## math help

How do i solve for x (x^2-9)(2x+1)=0

185. ## cda

Dance, yoga, and music have been found to have three of the following positive effects. Which is not a positive effect of dance, yoga, and music? A. Increased self-esteem B. Reduction of stress C. Increased personal sense of responsibility D. Increased

186. ## Math

In a recent student government election , the ratio of students who voted for the winner to all the students who voted was 0.84. The number of students who voted was 75. How many votes did the winner get ?

187. ## science help

How can you describe the location of hafnium (Hf, atomic number 72) on the periodic table? choose all that apply. -Transition metals -noble gases -group 6, period 4 -group 4, period 6 pls help me damon or ms sue pls help me pls pls pls

188. ## Chemistry

1.578 g of an unknown hydrocarbon (110.7 g/mol) burns in bomb calorimeter in excess oxygen. The heat capacity of the calorimeter,Cv, = 5.709 kJ/ºC and ΔT =7.995 ºC. Find ΔE for this hydrocarbon in kJ/mol.

189. ## Chemistry

Using the technique of the previous problem ΔE was found to be -2,000.00 kJ/mol of an unknown liquid hydrocarbon at 298 K. In another experiment it was determined that for each mole of hydrocarbon, 4 moles of oxygen gas are consumed and 6 moles of CO2 gas

asked by John Handra
190. ## Chemistry

Calculate the increase of entropy (in J/K) when 75 g of ice melts at 0 ºC and 1 atm. (The heat of fusion for ice is 6,000 J/mol.)

asked by Emily Couroso
191. ## Algebra 2

A car’s headlight contains a parabolic reflector. A special bulb with two filaments is used to produce the high and low beams. The filament placed at the focus produces the high beam and the filament placed off-focus produces the low beam. The equation

192. ## Chemistry

Calculate the change in entropy (in J/K) when 86.4 g of water is heated from 17.5 ºC to 76.5 ºC at 1 atm. (The specific heat is 4.184 J/(g-K).)

asked by Emily Couroso
193. ## health

which body system would you expect to provide the most protection from colds and the flu PLEASE HELP ME!!!!!!!!!!

194. ## Chemistry

Calculate the change in entropy (in J/K) when 61.4 g of nitrogen gas is heated at a constant pressure of 1.50 atm from 25.8 ºC to 92.8 ºC. (The molar specific heats are Cv is 20.8 J/(mol-K) and Cp is 29.1 J/(mol-K) .)

195. ## Physics

At an intersection a car of mass 900kg traveling east collides with a pick up truck of mass 1800kg that is traveling North. Two vehicles stick together as a result of the collision, and after collision, the wreckage is sliding at 16m/sec in the direction

196. ## Math

What percentage of the total students chose skateboarding? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank you

197. ## math

What is 5/9, 15/16, 1/4, and 9/10 put in order from smallest to largest?

198. ## Physical science

A 478.18g ice cube is taken out of the freezer at -8.5 degrees Celsius. how much heat s needed to turn it in to steam?

199. ## Physics

A costant force F is aplied to a crate of mass 25kg to move it upward along a frictionless inclined plane.when it reaches point A,its speed is 12 m.s-1 and 10,8 m,s-1 when it reaches point B which is 3.5m futher up the incline

200. ## pls help me dr.bob22 science

Which of the following would likely be part of an ionic bond? Choose all that apply. *K+1 *Cl2 *F-1 *Ne is it a and b

201. ## Spanish 3 Homework.

Hello. For these questions I have to specify whether these sentences are in the correct Spanish form. 1. “Tú das la tarea a tu maestro.” con pronombres es “Tú le la das.” True or false **FALSE 2. “El hombre manda un mensaje a su esposa.” con

202. ## Math

if a recipe of 2 dozen cookies calls for 3 teaspoons of vanilla how much vanillia will i need for 50 cookies ? 7.3 1.5 teaspoon vanilla= one dozen x 4 dozens = 2.00 missing cookies. 12.5 x 4 = 50 .5x4= 2.00 divided by 1.5 = 1.3 +6 (2servings of 3

203. ## Algebra 2

Verify the identity , justify each step tanØ+cotØ = 1/ sin Ø cosØ