# Jamie

Popular questions and responses by Jamie
1. ## Math

A semi circle sits on top of a rectangle to form the figure below find its area and perimeter use 3.4 for pie on the side 4 inches and on the bottom 6 inches what is the answer

2. ## Math

Orly uses 2 cups of raisins for every 8 cups of trail mix she makes how many cups of trail mix will she make if she uses 12 cups of raisins

3. ## Physics

A rope is tied to a box and used to pull the box 1.7 m along a horizontal floor. The rope makes an angle of 30∘ with the horizontal and has a tension of 5 N. The opposing friction force between the box and the floor is 1 N. Part A How much work does

4. ## Mathematics

When two balanced dice are rolled, 36 equally likely outcomes are possible as shown below. (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6) (2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6) (3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6) (4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4,

5. ## biology

which of the following is not a part of the theory of evolution

6. ## Physics - I just need help with c

I just need some clarification on part (c). Here's the whole problem for context: A uniform solid cylinder of mass 10 kg can rotate about a frictionless axle through its center O, as shown in the cross-sectional view in the figure. A rope wrapped around

7. ## Chemistry

Calculate the empirical formula of Tylenol: C, 63.56%; H, 6.00%; N, 9.27%; O, 21.17%

8. ## Math

Gymnast Clothing manufactures expensive hockey jerseys for sale to college bookstores in runs of up to 250. Its cost (in dollars) for a run of x hockey jerseys is C(x) = 2500 + 10x + 0.2x2 Domain(0 ≤ x ≤ 250) Gymnast Clothing sells the jerseys at \$105

9. ## Math liberal Arts

A bag contains 5 red marbles, 4 blue marbles, and 1 green marble. If a marble is selected at random, what is the probability that it is not blue?

10. ## science

3. Hydrobromic acid dissolves solid iron according to the following reaction: Fe(s) + 2HBr(aq) ---> FeBr2(aq) + H2(g) What mass of HBr (in g) would you need to dissolve a 3.2 gram pure iron bar on a padlock? What mass of H2 would be produced by the

11. ## Algebra

If the demand function for a commodity is given by the equation p2 + 16q = 1200 and the supply function is given by the equation 300 − p2 + 6q = 0, find the equilibrium quantity and equilibrium price.

12. ## physics

explain briefly why a razor blade floats in water and when soap solution is carefully added to the water it sinks

Limited Liability Companies. John, Lesa, and Trevor form a limited liability company. John contributes 60% of the capital, and Lesa and Trevor each contribute 20%. Nothing is decided about how profits will be divided. John assumes that he will be entitled

14. ## Chemistry 2 - Acids and Bases

Hydrazine (NH2NH2) is a weak base that ionizes in water as follows. NH2NH2(aq) + H2O(l) HNH2NH2^+(aq) + OH^−(aq) Calculate the concentration of OH^− ions in a 0.20 M solution of hydrazine, given that the base-dissociation constant (Kb) for hydrazine is

15. ## Algebra 2

The length of a rectangular window is 5 feet more than its width, w. The area of the window is 36 square feet. Write an equation to represent the area of the window. Please have your final equation equal to zero.

16. ## Math

Q1. A population has a mean of µ = 80 with σ = 20. a. If a single score is randomly selected from this population, how much distance, on average, should you find between the score and the population mean? 20 because the standard deviation is 20 b. If a

17. ## Chemistry

How do I do this?? Calculate the pH at the equivalence point for the titration of 0.20 M aniline (C6H5NH2, Kb = 3.8 x 10-10) with 0.20 M HCl. [Hint: remember the dilution factor caused by addition of titrant to the aniline solution.]

18. ## algebra

A satellite dish has a parabolic cross section and is 6 ft deep. The focus is 4 ft from the vertex. Find the width of the satellite dish at the opening. Round your answer to the nearest foot. Thank you

19. ## Math

Suppose that ln2=r. Use properties of logarithms to write the logarithm in terms of r. ln32=__

20. ## Chemistry

One of the substances that give wet goats and dirty gym socks their characteristic odors is hexanoic acid, CH3CH2CH2CH2CH2CO2H, which is a monoprotic weak acid. (a) Write the formula for the conjugate base of this acid.

21. ## Math Probability

You roll a number cube 20 times. It lands on 2 five times. What is the experimental probability of rolling a 2? 1}40% 2)10% 3)25% 4)17% I think #3 Thanks

22. ## Heat Capacity

When a 3.25 g sample of solid sodium hydroxide was dissolved in a calorimeter in 100 g of water, the temperature rose from 23.9 C to 32.0 C. Calculate delta H (in kJ/mol) of for the solution process: NaOH (s) -> Na+(aq) + OH-(aq) Use a calorimeter heat

23. ## Algebra

The backyard of a house is in the shape of a triangle. The longest side is 4 ft shorter than twice the shortest side. The third side is 4 ft less than the longest side. If the perimeter of the yard is 162 ft, what are the lengths of the sides?

24. ## math

A flagpole at right angle to the horizontal is located on a slope that makes an angle of 12∘ with the horizontal. The pole's shadow is 16 meters long and points directly down the slope. The angle of elevation from the tip of the shadow to the sun is

25. ## Chemistry

The rate constant for the decomposition of acetaldehyde, CH3CHO, to methane, CH4, and carbon monoxide, CO, in the gas phase is 1.59 ✕ 10−2 L/mol/s at 711 K and 3.63 L/mol/s at 855 K. Determine the activation energy (in kJ/mol) for this decomposition.

26. ## HISTORY

Which answer best describes why women were active in early reform movements? A. Many Americans believed women had higher morals than men. B. Many Americans believed women could better bring about change than men. C. Women in the 19th century had plenty of

27. ## accounting

Timberly Construction negotiates a lump-sum purchase of several assets from a company that is going out of business. The purchase is completed on January 1, 2013, at a total cash price of \$820,000 for a building, land, land improvements, and four vehicles.

28. ## math

-10=xy+z for x solve for x

29. ## Physics

A tennis player hits a 58.0 g tennis ball so that it goes straight up and reaches a maximum height of 7.02 m . Part A How much work does gravity do on the ball on the way up? Part B How much work does gravity do on the ball on the way down?

30. ## Chemistry

How would you write these chemical reactions?Can someone do one or two reactions for each problem, so I could get an idea of to them? ..I'm nit sure how most of the oeoducts wouls turn out..especially if it is a precipitate. 5. When Mn^2+ ions are

31. ## math

A farm has cows and ducks. There are 78 feet and 27 hands. How many of each animal are there? How do you know?

32. ## physics

Estimate the magnitude of the electric field in a cell membrane with a thickness of 8nm

33. ## worl geography

The governments of Norway, Sweden, the Netherlands, and the United Kingdom are all examples of __________. A. federations B. pure democracies C. federal republics D. constitutional monarchies

34. ## Statistics

A purchasing agent at the Kelly Bread Company wants to estimate the mean daily usage of rye flour. She takes a sample for 50 straight days and finds that the sample mean is 180 pounds with a sample standard deviation of 38.5 pounds. a) State the 90%

35. ## math

2) In a certain instant lottery game, the chances of a win stated as "3 in 23". Express the indicated degree of likelihood as a probability value between 0 and 1 3) A certain company reduced its management staff from 20 managers to 16. The company claimed

36. ## social studies

After the Scientific Revolution, scientists no longer made their ideas about science fit? 1) the results of their experiments 2) the teachings of the church 3)their observations in nature 4)their political beliefs I think #2 Thanks

37. ## AP Chemistry

The reaction of 8 grams of fluorine with excess chlorine produced 6.4 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %

38. ## Math Probability

A number cube is rolled 450 times. The number 3 comes up 67 times. What is the theoretical and experimental probability of rolling a 3 ? I think the answer is 2/9 but not sure of the process. Can someone explain to me. Sorry to be so much trouble. Thanks

39. ## Chemistry - Significant Figures

Suppose it takes 35 min for 2.4 g of sugar to completely react with another reagent we added to the flask. What would the reaction rate be? Calculate to the correct number of significant figures.

40. ## Algebra

Using a graph, solve for x and y below. If 6x - 3y = 24 & 18x + 3y = 12 I know to use the forumla y = m*x + b. I also know to assume x=0 so that your starting point is (0,b) with b representing the y axis. M represents slope, which is rise over run. What I

41. ## Vectors Math

I was given this info r=1.5 m d=3 m F= 50 N angle= 110 degrees 1. What torque is APPLIED ? T=Fsin T= (1.5)(50)sin(110) T=70 N m 2. At what angle would enough force be applied to achieve maximum toque? T=Fsin T= (1.5)(50)sin(10) T=13.0 N m 3. If someone

42. ## CAL

Consider the function y = 3x^5 – 25x^3 + 60x + 1 Use the first or second derivative test to test the critical points. How many relative maxima did you find? I got this as the derivative; 15 (4-5 x^2+x^4) And I got 4 relative maxima.

43. ## physics Work unit

1. A football player pushes a tackle dummy forwards at a constant 0.85m/s for 11m using 7150J of energy. The tackling dummy mass is 120kg. a) find force the player exerts? b) what is the frictional force the dummy exerts? c) what work is done by the

44. ## Accounting

Prepare a schedule that lists the components of and calculates the personal and dependent exemption amount (based on current year exemption and dependency amount) that would be included on the Brock's individual tax return based on the following

45. ## Math

Explain It: Which is greater, the greatest whole number with 5 digits or the least whole number with 6 digits? (I know the answer is the 'least whole number with 6 digits', but how can I explain it. Thanks!

46. ## Physics

The average coefficient of volume expansion for carbon tetrachloride is 5.81 10-4 (°C)-1. If a 43.0 gal steel container is filled completely with carbon tetrachloride when the temperature is 10.0°C, how much will spill over when the temperature rises to

47. ## physics

A typical steel B-string in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.620 m. What is the wave velocity along the string? Find your answer in m/s, but do not enter units. IS THE ANSWER 148.8m/s?

48. ## Algebra 2

Deandre is a software salesman. Let y represent his total pay (in dollars). Let x represent the number of copies of English is Fun he sells. Suppose that x and y are related by the equation 2400+70x=y Answer the questions below. Note that a change can be

49. ## Science

A hormone is under negative feedback regulation. This hormone stimulates water retention by the body. Which of the following will happen if water levels in the body get too high? 1) hormone levels will increase 2) hormone levels will decrease 3) antibodies

50. ## Science

Which of the following sets of terms could be used in a description of the peripheral nervous system? 1)motor neurons 2)brain and spinal cord 3)motor neurons 4)sensory neurons and spinal cord I think #1. Can you check? Thanks.

51. ## Chemistry - Kinetic Molecular Theory

Question: What is the density (in g/L) of ethyne gas at 743 torr and 12.2°C? The unrounded molar mass of ethyne is 26.036 g/mol. I did some unit conversions, so 743 torr=0.97763 atm and 12.2°C=285.35°K I used the equation d=PMr/RT and I plugged in

52. ## math

Identify the dependent variable in the relationship. A person burns a total of "c" calories by walking "m" miles. 1)calories 2)miles 3)neither "c" calories or "m" miles 4) both "c" calories and "m" miles I THINK #2, not sure because we have not gone over

53. ## Science

Which of these is an example of a biomass fuel? 1) oil 2) natural gas 3) wood 4) coal I think #3

54. ## Math

A magician showed a magic trick where he picked one card from a standard deck. Determine what the probability is that the card will be a red color queen card ?

55. ## Physics, diffraction

1. Yellow light of wavelength 580 nm shines on a diffraction grating with 4000 lines/cm. A.At what angles do the first-order and second-order maxima occur?

56. ## Chemistry - Equilibrium Constant

Determine the value of the equilibrium constant (Kp) at 800. K and 1 atm pressure. SbCl3(g) + Cl2(g) -> SbCl5(g) Delta G(o)f (SbCl5) = -334.34 kJ/mol Delta G(o)f (SbCl3) = -301.25 kJ/mol Delta H(o)f (SbCl5) = -394.34 kJ/mol Delta H(o)f (SbCl3) = -313.80

57. ## grammar

A mixture of jazz and classical idioms, the music of Gershwin was more innovative than most of his contemporaries. Can somebody tell me what's wrong with this sentence and why? I don't understand. :(

58. ## Physics

Please help ! Finish the following statement: "The greater the number of lines on a diffraction grating of a given size," a)the greater b)smaller then a)the range of wavelengths that can be diffracted b)the distance between the bright fringes produced

59. ## physics

Consider that a coin is dropped into a wishing well. You want to determine the depth of the well from the time t between releasing the coin and hearing it hit the bottom. Suppose that t=2.059 s and assume the speed of sound in air is 330 m/s. What is the

60. ## science

what is the difference between a theory and hypothesis? I got this off another site i hope it helps.. Scientific Laws, Hypotheses, and Theories Lay people often misinterpret the language used by scientists. And for that reason, they sometimes draw the

61. ## science

f energy is conserved, describe the kinetic energy of the projectile in relation to the work in and the potential energy of the counterweight.

62. ## world history

Use the excerpt below from the English Bill of Rights to answer the following question: "That the pretended power of suspending the laws or the execution of laws by regal authority without consent of Parliament is illegal; That the pretended power of

63. ## hardware components

which type of software coordinates the hardware and software of a computer to work efficiently and productively

64. ## Physics

A ball in the shape of a uniform spherical shell (like a soccer ball; I = 2/3 mr2) of mass 1.5 kg and radius 15 cm rolls down a 35 degree incline that is 6.0 m high, measured vertically. The ball starts from rest, and there is enough friction on the

65. ## Math

The equation above shows how temperature F , measured in degrees Fahrenheit, relates to a temperature C , measured in degrees Celsius. Based on the equation, which of the following must be true? A temperature increase of 1 degree Fahrenheit is equivalent

66. ## Math

If line A is a perpendicular bisector of MN, then which of the following statements is NOT true? 1)line A and MN intersect at a right angle 2)line A splits MN into two congruent segments 3)MN splits line A into two congruent segments 4)line A intersects MN

67. ## Algebra

The larger of two numbers is 11 more than twice the smaller number the sum of the numbers is 44 find each number

68. ## Science

2. Which of the following describes a relationship between science and society? A: Scientific discoveries can impact human life; therefore, society must remain scientifically literate. B: Scientific discoveries rarely impact human life; therefore, it is

69. ## Math Probability

You mix the letters M,A,T,H,E,M,A,T,I,C,A and L, thoroughly, Without looking , you draw one letter. Find the probability P(A). Write the probability as: A) fraction in simplest form B) a decimal C) a percent there are 3 letter A"s, so my answers are A)1/4

70. ## math

callum wins £300 in a raffle. he gives 5% to charity. he saves 2/5 of the £300.he uses the rest of the money to buy clothes. work out how much of the money callum uses to buy clothes./ I tried this question before in a test we got given the test back and

71. ## Math - Calculus

Directions (or bearings) on Earth are measured in degrees, running from zero to 360 degrees, clockwise, starting with 0 degrees being due North. So due East for example, is 90 degrees, due South 180 degrees, and Northwest is 315 degrees. You are swinging a

72. ## Math

The figure at right shows a long rectangular strip of paper, one corner of which has been folded over to meet the opposite edge, thereby creating a 30-degree angle. Given that the width of the strip is 12 inches, find the length of the crease.

73. ## probability statistics

how many bridge hands are possible containing 4 spaders, 6 diamonds , 1 club and 2 heart?

74. ## physics

A 5 kg block is being held against the wall. What is the minimum force needed to keep the block from moving if the force is applied at an angle that is 15 degrees above the horizontal. The coefficient of static friction between the wall and the block is

75. ## Math

After a genetics experiment on 67 pea plants, the number of plants having certain characteristics was tallied, with the results given below. Answer parts (a) through (c). 22 were tall 35 had green peas 42 had smooth peas 12 were tall and had green peas 20

76. ## Math

Will a 2-quart pitcher hold an entire recipe citrus punch -recipe- 2cups orange juice 2cups grapefruit juice 1/4 cup of apricot neater 1/3cup of pineapple juice 4cups ginger ale is the whole recipe 8 2/14 cups?

77. ## language arts

1. in diary of anne frank, act 1, what causes the franks and the van daans to move into the rooms on the top floor of the ware house? A. Their own homes have been desroyed by bombs. ***** B. They are hiding from the Nazis, who have been persecuting Jews.

78. ## Spanish

Hey, i just wanted to know if i got the questions right? Thanks Choose the sentence in which the verb, shown in quotation marks, is grammatically correct. A. El principe no "está" en casa. ➭B. ¿Dónde "es" Maria? C. Ella "está" de México. Choose the

79. ## Physics Work unit

1. A football player pushes a tackle dummy forwards at a constant 0.85m/s for 11m using 7150J of energy. The tackling dummy mass is 120kg. a) find force the player exerts? b) what is the frictional force the dummy exerts? c) what work is done by the

80. ## Design

Which design style encourages a complete manipulation of floral materials into unnatural geometric shapes and colors? A. Abstract B. New convention C. Ikebana D. New wave im thinking B

81. ## trig

Write cot(t) in terms of sin(t) if the terminal point determined by t is in the first quadrant. Do not leave a fraction inside a radical or use absolute value.

82. ## Chemistry

Just a few questions about rates of reaction. A) Why are the units for average and instantaneous rates the same? -because they are both measures of how quickly a reaction is occuring per unit time B) For a given set of data, two students determined

83. ## Chemistry

Two successive reactions, D-->E and E-->F, have yields of 48% and 73%, respectively, What is the overall percent yield for conversation of D to F?

84. ## music

the meaning of the word rest heads

85. ## music

the meaning of the words

86. ## chem

The diameter of a neutral argon atom is about 2.0 multiplied by 102 pm. Suppose that we could line up argon atoms side by side in contact with one another. Approximately how many argon atoms would it take to make the distance 1 cm from end to end?

87. ## Physics- LOST!

If the air temperature is the same as the temperature of your skin (about 30.0 C), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating water (sweat). During bicycling, a typical 70.0 kg

88. ## Physics

A shell is shot with an inital velocity of 20m/s at an angle 60 degrees with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment whose speed is immediately after the explosion zero falls

89. ## Math

Erica made a poster in the shape of a quadrilateral that has only one pair of parallel sides. Which of the following names the shape of Erica's poster? 1)square 2)rhombus 3)rectangle 4)trapezoid I think# 4

90. ## Physical Science A

What daughter product is produced when thallium–206, an isotope of thallium, undergoes beta minus (β–) decay?

91. ## Health and PE

Oxygen enters the blood in the ? 1)bronchi 2)pharynx 3)larynx 4)alveoli I think #4 Thanks !

92. ## Science

Which of the following represents a heterogeneous mixture? 1)saltwater 2)air 3)bleach and water 4)chicken noodle soup I think #3 Thank you.

93. ## Chemistry

At 500 K in the presence of a copper surface, ethanol decomposes according to the following equation. C2H5OH(g) CH3CHO(g) + H2(g) The pressure of C2H5OH was measured as a function of time and the following data were obtained. Time (s) PC2H5OH (torr) 0 250.

94. ## math

A coin is flipped 3 times. How does the P (H,H,H) compare to P(H,T,H) ? 1)P (H,H,H) is greater than P(H,T,H) 2) P(H,T,H) is greater than P(H,H,H) 3)The probabilities are the same 4)There is no way to tell with the info given I think #4 is correct...can you

95. ## Health

Which statement is true about stage 3 of alcoholism? 1)malnutrition and liver and brain damage often occur 2)Teenagers go through this stage very slowly 3)The drinker becomes totally dependent on the drug 4)The drinker begins trying to escape the everyday

96. ## Science

One light bulb in a string of lights goes out. This causes all the other lights in the string to also go out. This is an example of a?? 1) resistor 2)parallel circuit 3)closed circuit 4)series circuit I think #4. Thanks in advance for your help.

97. ## math

Which of the following could be represented by -8? 1) a drop of 8 meters 2) 8 T-shirts 3) sea level in 8 places of the world 4) 8 degrees C above 0 I think #1 Thanks

98. ## Math - Linear Approximation

a) Find a linear approximation of y=sinx at x=pi/6 b) use part (a) to approximate sin(61pi/360) and sin(59pi/360) I just really have no idea how to approach this problem. I know the formula is y=f(a)+f'(a)(x-a). Does that mean it would be