# Sean

Newest questions and responses by Sean
1. ## Precalc

What happens if you try to find the zeros using the quadratic formula for k(x)=x^2 -2x+2?

2. ## math

You have been assigned to interface different sensors (displacement, vibration, pressure, temperature) to the ADuC847. More specifically, you have been assigned to design the antialiasing filters for the different analog input channels on the ADuC847

3. ## Math

An aquarium tank holds 475 liters of water. How much is this in gallons? Use the following conversion: 1 gallon is 3.8 liters.

4. ## biochem

For an enzyme that follows simple Michaelis–Menten kinetics, what is the value of Vmax if V0 is equal to 1 mmol minute−1 when [S] = 1/10 KM I keep getting 11 for the answer but the answer key in my book says 1.1 umol. what am i doing wrong?

5. ## biology

Does the affinity of myoglobin for oxygen change when oxygen concentration changes? Im not really sure how to answer this. I know that myoglobin has very strong affinity for oxygen so once myoglobin is in the presence of oxygen it will react right away

6. ## Math (Urgent!)

Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p , where 0

7. ## Chemistry

What is the new concentration of acetic acid after 120mL of 0.201M acetic acid is mixed with 160mL of 0.248M sodium acetate Im not sure how to start this one would it be (120x.201)+(160x.248)

8. ## Chemistry

What will be the new concentration of PNP, if 30.5 uL of 2.15*10-4M PNP stock solution is mixed with 276.8 uL of water? Report your numeric answer in the units of microMolar (uM) would i divide the molarity by the total concentration

9. ## chemistry

What will be the amount of para-nitrophenol (PNP) in solution if 454.9 mL of 2.15 *10-2 M PNP solution is mixed with 92.7 mL of water? Report the amount in millimoles. Hint: do not confuse amount and concentration. I have not had chemistry in a long time

10. ## Geometry

If measurement AFB = 8x-6 and measurement BFC = 14x+8,Find the value of x so that Angle AFC is a right angle

11. ## Math

If the days of the year were numbered backward using consecutive numbers (so that December 31 is day number 1), in what month would day number 123 occur? A. August B. July C. March D. September I got September but I’m not sure if that’s the correct

12. ## math

2^99 - (-2)^99 = a. 0^99 b. 2^99 c. 2^198 d. 4^99 is the answer a?

13. ## Algebra

Select Yes or No to state whether each data set is likely to be normally distributed. Please help! the number of coupons used at a supermarket. --> I believe YES. the weights of the pumpkins that are delivered to a supermarket. --> I believe NO. the number

14. ## AP English

Plato, Symposium ’He who has been instructed thus far in the things of love, and who has learned to see the beautiful in due order and succession, when he comes toward the end will suddenly perceive a nature of wondrous beauty (and this, Socrates, is the

15. ## AP English

The author uses the indefinite pronoun something in the first sentence because: a. he wants to hook the reader with the ambiguity b. he's imprecise in his thinking c. his style is academic and purposefully obscure d. he does not know yet what the

16. ## AP English

Refer to the passage from Benedict de Spinoza's On the Improvement of the Understanding, translated by R.H.M. Elwes. The last sentence in the passage is: 1. A summary of a main idea in the passage 2. An example that illustrates a hypothesis 3. A transition

17. ## AP English

I AM back in Bracciano, a castellated town about 13 miles north of Rome, after a year in New Jersey. I find the Italian Government still unstable, gasoline more expensive than anywhere in the world, butchers and bank clerks and tobacconists (which also

18. ## AP English

I AM back in Bracciano, a castellated town about 13 miles north of Rome, after a year in New Jersey. I find the Italian Government still unstable, gasoline more expensive than anywhere in the world, butchers and bank clerks and tobacconists (which also

19. ## AP English

Refer to the excerpt from "A Bachelor's Complaint of the Behavior of Married People". You can infer from the fifth sentence that "them" refers to a. wives b. husbands c. old friends d. sovereign princes e. friendships Fifth Sentence is: "With some

20. ## AP English

Refer to the excerpt from "A Bachelor's Complaint of the Behaviour of Married People." The phrase"as a sovereign Prince" in the third sentence of paragraph two is an example of which rhetorical device? a. an appeal to logic b. simile c. an appeal to

21. ## AP English

Refer to the excerpt by Charles Lamb. The last sentence, "You may guess what luck generally befalls with such a rusty piece of metal as I am in these new mintings." implies that: a. Lamb wishes he were luckier with women b. Lamb is jealous of his friends'

22. ## AP English

The fourth sentence in "A Bachelor's Complaint of the Behaviour of Married People" (I have scarce a married friend of my acquaintance, upon whose firm faith I can rely, whose friendship did not start after the period of his marriage.) is an example of: a.

23. ## Chemistry

Given the following reaction for photosynthesis, 6CO2 + 6H2O --> C6H12O6 + 6O2, how many liters of O2 can be produced from 100 g of water at standard temperature and pressure?

Which of the following can be used to find journal articles on a given topic? a. A handbook b. A style guide c. A periodical index d. An encyclopedia I think the correct answer is B style guide

25. ## English

Which of the following sentences demonstrates proper subject verb agreement? A. The boy or the girls come to school late B. The boys and girl visits my house C. The boys or the girls sing in the choir D. The boys and girl in our club is in the cafe.

26. ## Math

Marge said that she subtracted 20 from both sides of an equation to solve it. Kollin thinks that the equation she was solving could have been 6+t=20. Does Kollin's reasoning make sense? Explain.

27. ## math

All the members of a construction crew work at the same pace. Six of them working together are able to pour foundation in 22 hours. How many hours would this job take if the number of workers: if the workers increased by the factor two

28. ## Math

In ∆ABC, the median AM (M ∈ BC) is perpendicular to the angle bisector BK (K ∈ AC).Find AB, if BC = 12 in.

29. ## Math

Donna is one year older than her sister, and her sister is 3 years older than their brother. If the sum of their ages is 31, how old is Donna?

30. ## Science

How dos the pull of a magnet work PLEASE ANSWER I NEED TO TURN THIS IN BEFORE JUNE 9th thank you!!

31. ## Chemistry

What would be the effect on Ksp if an unsaturated solution of CaSO4 was titrated instead of a saturated solution of CaSO4. would ksp be higher, lower or the same? would ksp be higher due to the more ions available in the solution. so you would have to use

32. ## intermediate algebra

inequalities –1 ≤ x – 3 ≤ 5 –2x – 5 < –2 or x – 3 < –10 Be careful of how a negative x-term is handled in the solving process. Show all math work arriving at the solutions. •Show the solution sets written algebraically and as a union or

33. ## intermediate algebra

Inequalities –1 ≤ x – 3 ≤ 5

34. ## Chemistry

In a titration experiment what would be the result on the concentration of the analyte if the drop counter did not count all the drops? would it be lower since you would just be calculating the concentration at the same point on the curve just with a lower

35. ## Math

What object weighs one ounce? 1. Car 2. Newspaper 3. Dog 4. Button plzz help Conexus 2nd grade.

36. ## Chemistry

what volume of .422 M NaOH must be added to .500L of .300 M acetic acid to raise its ph to 4.00 i know you have to use the henderson hasselbalch equation but im not sure which values i would use for the concentration portion of the equation. would i have

37. ## Chemistry

which salt solution would have the highest ph and why KI,KBr,KF,KCL or they all have the same ph. Im leaning towards KF since im pretty sure the other salts are neutral?

38. ## Chemistry

Rxn 1:     4 NH3(g) + 5 O2(g) ⇌ 4 NO(g) + 6 H2O(g)         If the equilibrium constant, Kc, for Rxn 1 is 0.0015, determine the equilibrium constant, Kc, for the    reaction:   2 NH3(g) + 5/2 O2(g) ⇌ 2 NO(g) + 3 H2O(g) I'm not sure how

39. ## Grade 8 Lang Arts

The story is "Trouble With Television" It has become fashionable to think that, like fast food, fast ideas are the way to get to a fast-moving, impatient public. How does the repetition in the sentence convey the author's negative attitude toward

40. ## 8 Grd L.A.

How does the repetition in the preceding sentence convey the author's negative attitude toward television? I think it shows how the author thinks negatively about television.

41. ## 8 Grd L.A.

"When before in human history has so humanity collectively surrendered so much of its leisure to one toy, one mass diversion?" How would you answer the rhetorical question? ____________________________________________________________________________ I'm

42. ## Chemistry

why does chlorobenzoic acid have a lower freezing point than benzoic acid explain? would this have something to do with the intermolecular forces or polarity. I know that the chlorobenzoic acid a Cl atom in the molecule which would create for a stronger

43. ## Chemistry

What volume of 0.1244M hydrochloric acid is required to neutralize 24.81 ml of 0.1026M barium hydroxide? from the mole to mole ratio and the given information I came up with .00509 mols of HCl. would I multiply this by 0.1244 or divide by .1244. I'm not

44. ## math

4 1/2 x 2 1/4 =

45. ## math

If you roll a number cube 40 times, about how often can you expect to roll a 2?

46. ## Chemistry

How do i find the PH and pOH of 12.5ml of 15.8M HNO3 added to 400ml of 0.57M KOH

47. ## Chemistry

Consider the reaction: 2H2+2NO->N2+2H2O. Initially 1.20mol of H2 and 0.95 mol of NO are placed in a container(all reactants and products are gases). If after 5 seconds the amount of H2 has been reduced to 1.02mol then how much NO is left and how much N2

48. ## Math/Precsl

Solve: log(8y+12)=2

49. ## Language Art, please check!

1. Tiny Tim’s father, Bob Cratchit, works for Scrooge. What is the appositive in this sentence? Tiny Tim father Bob Cratchit *** Scrooge 2. The Ghost of Christmas Future, the third spirit, takes Scrooge to see his grave. What is the appositive phrase in

50. ## math

is apportionment the best way to achieve fair representation?

51. ## Chemistry

If the percent yeild of the following equation is 55%, how many grams of H2SO4 are produced when 4.88 x 10^24 molecules of SO3 are combined with excess water? SO3(g)+H2O(l)->H2SO4(aq). what would be the formula to solve this equation

52. ## Chemistry

How many grams of pure uranium can theoretically be extracted from a 10.0 kg sample of pitchblende, which is 92.0% UO2? Im not looking for the answer. I would just like to know the formula to solve the problem.

53. ## Chemistry

A Partially weather balloon has a volume of 195 L at a pressure of 0.993 atm. What will be the pressure in the balloon when it is inflated to a volume of 7500 L? (assume to temp. change)

54. ## Algebra

A train covered the distance of 400 km between A and B at a certain speed. On the way back it covered 2/5 of the distance at that same speed and then it decreased its speed by 20 km/hour. Find the speed of the train at the end of its journey from B back to

55. ## Algebra

A tourist traveled on a motorboat against the current for 25 km. And then returned back on a raft. In the boat the tourist traveled for 10 hours less than on the raft. Find the speed of the current if the speed of the motorboat in still water is 12

56. ## math

Finn is 9 years younger than Pari. Pari is twice as old as Finn. How old is Finn?

57. ## language arts

what is the most impressive example of anne's inner strength in act 2?

58. ## chemistry

He has narrowed the identity of his unknown to either molecule X, molecule Y, or molecule Z. The Merck Index tells him that all three molecules produce white, needle-like crystals from ethanol. How might he definitively identify his unknown molecule?

59. ## physics

an operating 100-watt lamp is connected to a 120-volt outlet. what is the total energy used by the lamp in 60. seconds

60. ## Math

Upon retirement (in 40 years) you want to receive \$10,000 each month for a period of 28 years. This money resides in an account that pays 5.9% interest. How much money must be in the account to fulfill your goal?

61. ## Mathematics

Show that the equation tanθ = sinθ can be written in the form sinθ(1 - 5cosθ) = 0?

62. ## Mathematics

Solve 2cos^2(x) + 4sin(x)-3 = 0, giving all solutions in the interval 0 ≤ x ≤ 2π

63. ## Mathematics

Given that 2cos^2 x - 3sin x -3 = 0, show that 2sin^2 x + 3sin x +1 = 0? Hence solve 2cos^2 x + 4sin x - 3 = 0, giving all solutions in the interval 0 ≤ x ≤ 2π

64. ## Calculus

A tennis ball is dropped from a height of 32 feet, rebounding to 1/2 its former height with each bounce. How far will the ball have traveled VERTICALLY when it comes to a rest?

65. ## Algebra

If a certain number is added to the numerator and denominator of 11/13, the result is 11/12. Find the number.

66. ## Physics

A block of 3kg is pulled up a smooth slope with a force of 24N and the slope is of an angle 25 degrees. Calculate the acceleration of the block up the slope.

67. ## Physics

A car traveling at a velocity of 2m/s undergoes an acceleration of 4.5m/s2 over a distance of 340m.How fast will it be going after the acceleration?

68. ## Physics

A car of mass 1300 kg is driving along a road at speed of 28m/s. As it approaches some traffic lights, the lights change to red and the driver applies his brakes causing the car to skid. The frictional force between the skidding tyres and the road is 0.8

69. ## Physics

A car of mass 1300 kg is driving along a road at speed of 28m/s. As it approaches some traffic lights, the lights change to red and the driver applies his brakes causing the car to skid. The frictional force between the skidding tyres and the road is 0.8

70. ## Physics

A man runs east 9.8 m/s for 11 s, stops for 6.9 s, then runs back (west) at 1.5 m/s for 1.2 s. What is the man's average velocity?

71. ## Physics

A soccer ball is kicked with resultant velocity of 22.6 m/s at an angle of 60 degrees. What is the time to Apex, what is the range of the kick? r = 22.6 angle = 60 degrees 1)Vxi=sin(60)(22.6) = 19.57 Vyi=cos(60)(22.6) = 11.3 2)T= Vyf-Vyi/A 0-11.3/-9.81 =

72. ## Math

The circumference of a rear wheel of a carriage is 50 inches more than a front wheel. If the rear wheel makes as many revolutions in going 200 feet as the front wheel in going 120 feet, find the length of the circumference of each wheel.

73. ## Math

In a third game. Javier first two darts land in R what is the maximum possible score in this game

74. ## STATISTICS

According to the DPT of Health Services , 12% of 30-39 have depression. Suppose 3 30-39 year olds are selected randomly what is the probability that all three will have depression.

75. ## Math

Find equations of the osculating circles of the ellipse 9x^2+4y^2=36 at the points (2,0)&(0,3).

76. ## Math

Find the curvature x=t^2, y=t^3 Using k=|xÿ-yx|/(x^2+y^2)^3/2

77. ## Differential Equation

Given A=2i+3j and B=4i-j Compute for the following a. |a|+|b| b. 5A-6B c. |5A-6B| d. |5A|-|6B|

78. ## Math

Alice takes 4 hours to paint a wall. With sam's help, they can paint the wall in 3 hours. Without help, how long would it take Sam to do the same thing?

79. ## Trigonometry

Write an equation of the cosine function with the given amplitude, period, phase shift, and vertical shift. amplitude = 3, period = pi, phase shift = -3/4 pi, vertical shift = -3

80. ## Trigonometry

Find tan theta if theta is an angle in standard position and the point with coordinates (â€“12, 5) lies on the terminal side of the angle.

81. ## ALGEBRA

Jan plans to invest \$7500, part at 4% simple interest and the rest at 5% simple interest. What is the most that he can invest at 4% and still be guaranteed at least \$325 per year?

82. ## ALGEBRA

Find the distance between the points (-2, 3) and (4, -5)

83. ## Physics

An equal amount of heat is transferred to two containers containing water at the same temperature. If the second container contains three times as many water molecules as the first, how do the final temperatures compare?

84. ## Physics

A liter of water is used to cool some electronics. If 1000 J of heat is given off by the electronics, by what temperature does the water increase? One liter of water has a mass of 1 kg and a specific heat of 4.184 J/(g °C). I can not get this..please help

85. ## algebra

If f(x) and g(x) are two functions defined by f(x) = ã(x + 1), g(x) = | x - 1 |, then what is the value of f(g(9))?

86. ## College algebra

. If i = ¡Ì-1, then (i + 1)(6i ¨C 10) is equivalent to?

87. ## College Algebra

The function w(x) = -0.01x² + 0.27x + 8.60 can be used to estimate the number of self-employed workers in America in millions, x years after 1980. For what years were there (or will be there) 9.7 million self-employed worker in America?

88. ## math

The area of a triangle is 600 square feet. Find the altitude, in feet, of the triangle if the length of the corresponding base is 30 feet.

89. ## Algebra 1

Seiji and Gavin both worked hard over the summer. Together, they earned a total of \$425. Gavin earned \$25 more than Seiji. Hoe much did each of them earn? A. Write a system of two equations to model this program. I got 1 equation down, i just cant figure

90. ## Physics

A cannon is fired at 30 degrees above the horizontal with a velocity of 200 m/s from the edge of a 125 m high cliff. Calculate where the cannonball lands on the level plain below.

91. ## Physics

A 3kw engine operates for 3secs, 10kgf force is applied find the Displacement.

92. ## Physics

Converging lens has focal lenght 8 cm , at what distance you will have to place the object in the following devices; 1) Collimator of Spectrum 2) Terrestrial Telescope

93. ## Physics

A mass of 0.55 kg attached to a vertical spring stretches the spring 36 cm from its original equilibrium position. The acceleration of gravity is 9.81 m/s2 . What is the spring constant? Answer in units of N/m.

94. ## Chemistry

Is the boiling point of 0.01 m potassium fluoride solution higher or lower than that of 0.01 m glucose solution? Explain

95. ## computer science

The components of a traditional analysis model (data flow diagrams, process definitions, entity-relationship diagrams, and data definitions) were developed in the 1970s and 1980s as part of the traditional structured analysis methodology. How well do the

96. ## Systems Analysis

This is the question that was asked: The components of a traditional analysis model (data flow diagrams, process definitions, entity-relationship diagrams, and data definitions) were developed in the 1970s and 1980s as part of the traditional structured

97. ## statistics

Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long (The Wall Street Journal,

98. ## physics

A cannon fires a 0.598 kg shell with initial velocity 10 m/s in the direction 46◦ above the horizontal. The shell’s trajectory curves downward be- cause of gravity, so at the time t = 0.53 s the shell is below the straight line by some verti- cal

99. ## physics

A 1.0-kg cart and a 0.50-kg cart sit at different positions on a low-friction track. You push on the 1.0-kg cart with a constant 2.5-N force for 0.15m . You then remove your hand, and the cart slides 0.35 m and strikes the 0.50-kg cart. By what amount does