# Sean

Newest questions and responses by Sean-
## Precalc

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

*asked on January 30, 2019* -
## 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

*asked on December 7, 2018* -
## 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.

*asked on October 21, 2018* -
## 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?

*asked on October 15, 2018* -
## 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

*asked on October 7, 2018* -
## Math (Urgent!)

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

*asked on October 2, 2018* -
## 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)

*asked on September 30, 2018* -
## 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

*asked on September 12, 2018* -
## 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

*asked on September 12, 2018* -
## Geometry

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

*asked on August 28, 2018* -
## 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

*asked on August 7, 2018* -
## math

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

*asked on July 25, 2018* -
## 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

*asked on May 30, 2018* -
## 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

*asked on May 22, 2018* -
## 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

*asked on May 22, 2018* -
## 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

*asked on May 22, 2018* -
## 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

*asked on April 16, 2018* -
## 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

*asked on April 16, 2018* -
## 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

*asked on April 16, 2018* -
## 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

*asked on April 16, 2018* -
## 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'

*asked on April 16, 2018* -
## 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.

*asked on April 16, 2018* -
## 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?

*asked on February 27, 2018* -
## Reading

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

*asked on February 24, 2018* -
## 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.

*asked on February 24, 2018* -
## 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.

*asked on February 6, 2018* -
## 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

*asked on October 20, 2017* -
## Math

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

*asked on October 14, 2017* -
## 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?

*asked on May 25, 2017* -
## Science

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

*asked on May 22, 2017* -
## 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

*asked on April 12, 2017* -
## 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

*asked on March 15, 2017* -
## intermediate algebra

Inequalities –1 ≤ x – 3 ≤ 5

*asked on March 15, 2017* -
## 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

*asked on March 11, 2017* -
## Math

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

*asked on March 7, 2017* -
## 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

*asked on March 4, 2017* -
## 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?

*asked on February 19, 2017* -
## 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

*asked on January 25, 2017* -
## 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

*asked on December 7, 2016* -
## 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.

*asked on December 7, 2016* -
## 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

*asked on December 7, 2016* -
## 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

*asked on November 27, 2016* -
## 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

*asked on November 26, 2016* -
## math

4 1/2 x 2 1/4 =

*asked on August 16, 2016* -
## math

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

*asked on May 18, 2016* -
## Chemistry

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

*asked on April 26, 2016* -
## 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

*asked on April 26, 2016* -
## Math/Precsl

Solve: log(8y+12)=2

*asked on April 25, 2016* -
## 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

*asked on April 22, 2016* -
## math

is apportionment the best way to achieve fair representation?

*asked on April 19, 2016* -
## 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

*asked on April 10, 2016* -
## 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.

*asked on April 9, 2016* -
## 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)

*asked on April 8, 2016* -
## 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

*asked on March 25, 2016* -
## 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

*asked on March 25, 2016* -
## math

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

*asked on March 19, 2016* -
## language arts

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

*asked on March 12, 2016* -
## 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?

*asked on February 2, 2016* -
## 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

*asked on January 27, 2016* -
## 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?

*asked on December 2, 2015* -
## Mathematics

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

*asked on November 18, 2015* -
## Mathematics

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

*asked on November 18, 2015* -
## 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

*asked on November 18, 2015* -
## 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?

*asked on November 16, 2015* -
## Algebra

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

*asked on November 4, 2015* -
## 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.

*asked on November 2, 2015* -
## 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?

*asked on October 29, 2015* -
## 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

*asked on October 25, 2015* -
## 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

*asked on October 25, 2015* -
## 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?

*asked on October 8, 2015* -
## 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 =

*asked on October 7, 2015* -
## 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.

*asked on September 27, 2015* -
## Math

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

*asked on September 23, 2015* -
## 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.

*asked on August 13, 2015* -
## Math

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

*asked on July 5, 2015* -
## Math

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

*asked on July 5, 2015* -
## 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|

*asked on June 23, 2015* -
## 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?

*asked on June 6, 2015* -
## 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

*asked on June 4, 2015* -
## 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.

*asked on May 26, 2015* -
## 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?

*asked on April 30, 2015* -
## ALGEBRA

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

*asked on April 29, 2015* -
## 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?

*asked on April 26, 2015* -
## 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

*asked on April 26, 2015* -
## 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))?

*asked on April 23, 2015* -
## College algebra

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

*asked on April 23, 2015* -
## 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?

*asked on April 23, 2015* -
## 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.

*asked on March 26, 2015* -
## 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

*asked on January 23, 2015* -
## 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.

*asked on January 18, 2015* -
## Physics

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

*asked on January 14, 2015* -
## 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

*asked on January 14, 2015* -
## 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.

*asked on January 12, 2015* -
## Chemistry

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

*asked on December 8, 2014* -
## 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

*asked on November 17, 2014* -
## 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

*asked on November 17, 2014* -
## 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,

*asked on November 16, 2014* -
## 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

*asked on November 7, 2014* -
## 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

*asked on October 23, 2014* -
## science-chemistry

An aqueous solution of ammonium nitrite decomposes when heated to give off nitogen gas and water. This reaction can be used to prepare pure nitrogen gas. How many grams of ammonium nitrite must have reacted if 3.75 liters of nitrogen gas was colleced over

*asked on October 20, 2014*