Shawn

This page lists questions and answers that were posted by visitors named Shawn.

Questions

The following questions were asked by visitors named Shawn.

What is the antiderivative of e^2x? I know the antiderivative of e^x is e^x. Would e^2x's antiderivative still be e^2x?? You want F(x) such that F'(x)=e^2x Try F = (1/2)e^2x + C =(e^2x)/2 =(e^2x)/2

I need help I do Not understand the difference between country"s ,countrie"s, and countries? can some one help it is the same

I,m doing research on the oil derricks and pumping unit and need to know what material the first oil derrick was made from in Texas Since this is not my area of expertise, I searched Google under the key words "<I>oil derrick history Texas</I>" to get the...

In what city was the first oil derrick built in texas?

Why was the oil derrick built? http://en.wikipedia.org/wiki/Derrick_(lifting_device)

We are just starting this section, and I'm confused...Please help me understand how to solve this inequality: (one fifth r is less than two) 1/5r < 2 Also, simplify: (the #s are exponents) z3 . z3 x12/x3 By 1/5r you mean r/5 or 1/(5r)? z^3 . z^3 = z^6 x^1...

True or False? Allosteric inhibitors always bind to the active site of an enzyme. http://www.mansfield.ohio-state.edu/~sabedon/biol1045.htm Scroll to 15 when at the site I've provided

True or False Cofactors and coenzymes are usually larger than enzymes and participate in catalysis . http://en.wikipedia.org/wiki/Coenzyme Notice the 3rd word under the definition when at the above site.

Nitric acid is produced commercially by the Ostwald process, represented by the following equations: 4NH3(g) + 5O2(g) > 4NO(g) + 6H2O(g) 2NO(g) + O2(g) > 2NO2 (g) 3NO2(g) + H2O(l) > 2HNO3(aq) + NO(g) What mass of NH3 must be used to produce 1.0x10^6 kg HN...

Find the volumes of the solids generated by revolving the region in the first quadrant bounded by the following about the given axes. x = y - y3, x = 1, y = 1 (b) Revolved about the y-axis ? Hi Shawn, 97/105 * pi ? :) We need to cut away the volume of the...

When it is said "Y as a funtion of X" does it mean y=f(x) eg. y=2x+3 or x=f(y) eg. x=2y+3 the first one is right

At Nick's Bakery, the cost to make his homemade chocolate cake is $3 per cake. He sells three and receives a total of $21 worth of producer surplus. Nick must be selling his cakes for a. $2 each. b. $7 each. c. $8 each. d. $10 each. i can't figure this qu...

Suppose that the equilibrium price in the market for widgets is $5. If a law reduced the maximum legal price for widgets to $4, a. consumer surplus would necessarily increase even if the lower price resulted in a shortage of widgets. b. consumer surplus w...

Find two consecutive even integers that have a sum of 450. 224+226=450 If two consecutive even integers, x and x + 2, add up to 450, then 2x + 2 = 450 2x = 448 x = 224 is the smallest of the two. Okay thanks.

Why is the line of the inequality solid when <= or >= and dotted when < or >? It is a representation. If <=, the equal says the values can be on the line. If dotted, they cannot be on the line, but only < or > (ie, dotted means values on either side of th...

I know there are methods out there but what do you think is the best or easiest method(s) of solving a system of equations. Depends on the coefficients of the equation. If in one of the equations I can solve for one of the variables without having to expr...

My book is showing the solution for graphing a system of linear equations y > 2x - 7 y is greater than or equal to -3x + 7 I see the way they graphed it and both lines intersect at one point. Did the just find -7 and +7 on the line in order to graph or di...

|4x-6| = 26 my answer is 5 The book's answer is 8, -5 How did they get that. What did i miss?

|-8z+4| = 20 z = -2 Again the book's anwser is -2, 3 Apparently I am missing a step. What is it?

Create a table that list the strengths and challenges of traditional systems development life cycle, prototyping, rapid application development, and end user system development life cycle."

Determine whether the graphs of the two lines are parallel. y+3=3x 6x-y=-3 Are the graphs of the given equations parallel?

Create a Histogram of the following data: Interval Frequency 0 – 5 0 5 - 10 5 10 - 15 5 15 - 20 15 20 - 25 5 25 – 30 10

A sample of 64 observations is selected from a normal population. the sample mean is 215 and the standard deviation is 15. conduct the following test of hypothosis using the .3 significance level. Ho:u > or = 220 H1: u < 220 a) Is this a 1 tailed or 2 tai...

Solve: (t+24)/(t^2-t-56)+7/t-8=3/t+7

Solve 1/C=1/C1+1/C2 for C1.

Solve 1/C=1/C1 + 1/C2 for C1 This multiple choice and the listed answers are: a.)C1= CC2/(C2-C) b.)C1= C-C2/C c.)C1= C+C2/CC2 d.)C1= C+C2/C2

Solve: (t+24)/(t^2-t-56)+7/(t-8)=3/(t+7) I do know that (t^2-t-56) can be factored out to (t-8)(t+7) so I have the equation as (t+24/(t-8)(t+7) +7(t+7)/(t-8)(t+7)-3(x-8)/(t-8)(t+7) is this correct ot what am I doing wrong?

Solve: (t+24)/(t^2-t-56)+7/(t-8)=3/(t+7) I do know that (t^2-t-56) can be factored out to (t-8)(t+7) so I have the equation as (t+24/(t-8)(t+7) +7(t+7)/(t-8)(t+7)-3(x-8)/(t-8)(t+7) is this correct ot what am I doing wrong? I don't understand the rest so m...

I have a problem that I need checked it is the produce of the reciprocals of two consecutive integes is 1/182 Find the integers. I have as the answer -13,-14 or 13,14 is this correct?

Solve: (t+24)/(t^2-t-56)+7/(t-8)=3/(t+7) I do know that (t^2-t-56) can be factored out to (t-8)(t+7) so I have the equation as (t+24/(t-8)(t+7) +7(t+7)/(t-8)(t+7)-3(x-8)/(t-8)(t+7) (t-24) + 7(t+7)=3(t-8) solve for t. The choices are: a.)-97/5 b.)122/5 c.)...

Let f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I have multiplied the LCD of (a-8)(a+7)(a+22)by both sides with no luck. This is a multiple choice question a.)...

one summer, Van mowed 4 lawns for every 7 lawns mowed by Fiona. Together they mowed 132 lawns. How many did Fiona mow? I have the answer as 84 is that correct?

Simplify: (2/a + 6/b) / (8/ab + 4/a^2) I have the answer as a(3a+b)/(4a+2b) Is that correct?

Subtract and Simplify: 4a^2/(a-b)-(4b^2-8ab)/(b-a) I have the answer as 4(a+b)^2/(a-b) or should it be 4(a-b)^2/(a-b)

Subtract and Simplify: 4a^2/(a-b)-(4b^2-8ab)/(b-a) I have the answer as 4(a+b)^2/(a-b) or should it be 4(a-b)^2/(a-b) Responses Math problem check - bobpursley, Sunday, October 12, 2008 at 4:23pm just the numerator.. 4a^2-8ab + 4b^2, right? 4(a-b)^2 Now d...

f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I have multiplied the LCD of (a-8)(a+7)(a+22)by both sides with no luck. This is a multiple choice question a.) -161...

Simplify: ã63 I have the answer as 3ã7 is that right?

Simplify: ^3ã-216/(x^9) I have the answer as -6/(x^3) Is that right?

Simplify: square root of 25a^2 I have the answer as 5a is that right?

Simplify: sqrt x^2-8x+16 I know that this can be factored out to sqrt (x-4)(x-4) what do i do next?

I am kinda stuck on this one Simplify: ^5sqrt x^7 y^4 I don't know what to do for this problem. I am lost with what to do with the exponents when you have a number on the outside.

Simplify: sqrt(4x^2)/(36y^6) is the answer x/(3y^3)?

^3sqrt4x ^3sqrt6y Not sure of how to work this problem.

I am kinda stuck on this one Simplify: (x^7 y^4)to the 1/5 power I don't know what to do for this problem. I am lost with what to do with the exponents when you have a number on the outside of the root.

This problem is a little different Simplify: ^5 sqrt symbol(x^7 y^4) How would I solve this problem?

Simplify ^3 sqrt symbol 4x ^3 sqrt symbol 6y Would I combine the 4x and the 6y?

A disoriented driver crosses diagonally from one corner of a 150 m by 275 m lawn to the far corner. How far does the wayward driver drive across the lawn? Give an approximate answer to three decimal places.

Express in terms of i and simplify: sqrt-54 is the answer -3isqrt6

subtract: 3+5i-(-4+6i) is the answer 7-i?

Multiply: sqrt-25 sqrt-100 is it 50?

Multiply Write the answer in the form a+bi. (2-3i)^2 I am coming up with 4-3i what am I doing wrong?

Divide and simplify to the form a+bi. (-8+i)/(2-3i)

Solve: sqrt(7x-5)+sqrt(15x+4)=sqrt(30x+31)

Simplify: (4+2i)/2i(4-2i)^-1

Express using radical notation : (6ab)^4/3

Express using exponential notation sqrt (6xy)^3

if f(x) = sqrt(9-3x) determine the domain of f

if f(x)=x^2 find f(2-sqrt6)

rationalize the denominator sqrt 5/ (5+sqrt6)

Solve: x= sqrt(10x-4-2)

Simplify ^5 sqrt symbol(x^6y^5)/^5 sqrt symbol(x^2 y^2)

^4sqrt symbol(x^2 y^3)^3sqrt symbol(xy)

Simplify: 9 sqrt5 -3 sqrt5

(3+sqrt x)(4- 3 sqrt x)

^5 sqrt symbol a^6/ ^4 sqrt symbol a^3

sqrt (x^5 y^2) +sqrt(9xy^2)

if f(x)=x^2 find f(2-sqrt6) I have the answer as 10-4sqrt6 is that right?

The problem is solve x= sqrt10x-4-2 So it would be x=sqrt10x-6 right then how would I solve for x

The problem is solve x= sqrt10x-4-2 So it would be x=sqrt10x-6 right I have as x=4 is that right? or is it 2,4

A disoriented driver crosses diagonally from one corner of a 150 m by 275 m lawn to the far corner. How far does the wayward driver drive across the lawn? Give an approximate answer to three decimal places. What formula would I apply to solve this?

subtract: 3+5i-(-4+6i) is the answer 7-i?

express in terms of i and simplify: srqt-54 is it -3isqrt6?

multiply: sqrt-25 sqrt-100 is the answer 50?

Simplify: sqrt(x^5 y^2)+sqrt(9xy^2) is the answer sqrtx(x^2y+3y)

what happened in titusville in 1559

Solve: 3x^2-11=0 Is the answer" +- sqrt11/3?

Solve: 3x^2-11=0 Is the answer" +- sqrt 11/3?

Solve: 5x(x-5)-2x(x+4)=-90 Is the answer 5,6 ?

Solve: x^2 +4x+1=0 Is the answer 2+-sqrt2?

Solve: x+5=x^2 I have (1+- sqrt 21)/2 Is that right or did I calculate something wrong?

Solve: x^2 +4x+1=0 Is the answer 2+-sqrt2?

Solve: x^-2 - x^-1= 5/4 I have the answer as (5+/- sqrt29)/2 Is this right?

The Mad River flows at a rate of 3 km/h. In order for a boat to travel 78.2 km upriver and then return in a total of 8 hr, how fast must the boat travel in still water? what formula would be used to solve this problem?

The Mad River flows at a rate of 3 km/h. In order for a boat to travel 78.2 km upriver and then return in a total of 8 hr, how fast must the boat travel in still water? what formula would be used to solve this problem? I used the formula of V = D/T T = D/...

Sabine and Hercule can assemble a table in 45 minutes. Working alone, it takes Hercule 48 minutes longer than Sabine to put this table together. How long would it take for Sabine to assemble the table by herself? What formula would I use to solve this?

Solve: x^-2 - x^-1= 5/4 I multiplied all terms of your equation by 4x^2 to get 5x^2 + 4x - 4 = 0 I get (-2+/-2sqrt6)/5 is this correct?

What is the y-intercept of f(x)=x^2+x-12? the answers are a.)(0,12) b.)(-72,0) c.)(0,-12) d.)(0,-72) I have the answer as (c.)(0,-12) is this right?

What is the y-intercept of f(x)=x^2+x-12? the answers are a.)(0,12) b.)(-72,0) c.)(0,-12) d.)(0,-72) I have the answer as (c.)(0,-12) is this right?

Rosie's Palm Pirates, a manufacturer of electronic organizers, estimates that when x hundred Palm Pirates are made, the average cost per unit is given by C(x) = 0.4x^2 -3.68x+9.524, where C is in hundreds of dollars. What is the minimum cost per unit? is...

Complete the square: x^2 -12x. Which of the following is the correct perfect-square trinomial? the answers are: a.) x^2 +22x+121 b.) x^2 -10x+25 c.) x^2 -20x+44 d.) x^2 -12x+36 This is tough because the answers could be a.) b.) and d.) I am not sure which...

Solve: x^2 +5x=1. Use a calculator to approxiamte the solutions with rational numbers. is the answer -0.1925824, 5.65331193 ?

Solve: x^2 +8x </=9. How would I solve this?

let f(x) = 12x^2 +7x-10. Find x such that f(x)=0 a.) -4/5, 5/3 b.) -5/4, 2/3 c.) -2/5, 5/3 d.) -5/3, 2/3

Determine the type of number that the solutions of x^2 +5x+3=0 will be I have the answer as rational is that right?

let f(x) = 12x^2 +7x-10. Find x such that f(x)=0 a.) -4/5, 5/3 b.) -5/4, 2/3 c.) -2/5, 5/3 d.) -5/3, 2/3 I think I have it. I was able to factor out 12x^2 +7x-10 to (4x+5) (3x-2)=0 The answer is -5/4 and 2/3 right?

Answers

The following answers were posted by visitors named Shawn.

Let X be the population 5 years ago. X*(1.8) = 18,000 X = 10,000

Tariffs help us to maintain a favorable balance of trade and balance of payments

Solve: (t+24)/(t^2-t-56)+7/(t-8)=3/(t+7) How do I solve this problem

Yes, I am still having problems with this problem. I understand this part 1/C1 = 1/C - 1/C2 but I don't understand this part: (C2 - C)/(C*C2)

Okay I understand it now I have to make them have the same denominators so I multiply 1/C by the numerator and denominator by C2 so it would be C2/(C2*C) and the other part is 1/C2 times C which would be C/(C2*C) which would make the problem 1/C1= C2-C/(C...

a.)-97/5 is the answer I get is that correct?

Thank You. I understand.

I got it thanks

Thank you I have the answer as 10km/h.

When I plug in the values what am I looking to find?

Okay I have the answer as 4(a-b) is that right

So you are saying that it is none of the multiple choice answers of -161/8 120/7 161/7 or -17 ?

What about 4a^2/(a-b)-(4b^2-8ab)/(b-a) I thought that you would multiple the second part of the equation by -1 -(4b^2-8ab)/(b-a) to get the common LCD of a-b So I thought the equation would be 4a^2/(a-b) + (4b^2 + 8ab)/(a-b) I have the answer as 4(a+b)^2/...

square root 63 I have the answer as 3square root 7

the symbol ã should be the square root symbol

Okay I understand thank you both.

Yes, it is (x^7 y^4)1/5

yes it is sqrt [ (4x^2)/(36y^6)]

On the paper the 5 is a small five and over the sqrt root symbol and inside the square root is x^7 and y^4

I have the answer as 10-4sqrt6 is that right?

The problem is solve x= sqrt10x-4-2

I have the answer as x=4 is that right?

And how would I do that?

correct the -2 is on the outside of the square root symbol.

if you had to chose would it be the + or - or just select both?

oh okay, I see what I did wrong sorry. Thank you

the union was not for slavery and they had more factories, a bigger population, and just a better trained army

sorry i meant titusville PA and i got it but thanks

Thanks I understand now.

Is the answer 10 km/h?

oh okay thanks.

I tried the equation and got (-2 }2ã6)/5 Is this the answer?

You are really good. Thanks. I really appreciate the breakdown of the problem.

I forgot to move the decimal one more place.

Thank you so much

Thanks just to make sure I have the problem as x^2+8x less than or equal to 9.

I think I have it I was able to factor out 12x^2 +7x-10 to (4x+5) (3x-2)=0 answer is -5/4 and 2/3 right?

I have the answer as a= (v+/- sqrt[v^2+4w^2r^2]/w

Did I find this out correctly?

your a life saver

whoops i meant NYG to arizona not TN

Thank you. I was able to get the same answers.

Not a function but is it one to one?

for f of g(x) I have -4x^2-10x-6 Is this right?

Hi Reiny, I just have one question for 4.) the problem is g(x)= (x+5)^3 how were you able to convert the equation to the following? let y = (x+5)^2 interchange x with y x = (y+5)^2

I have a question the formula that I used was b^y=x means that logbx=y is this the correct formula? so using that formula I got the following. 4^-3 =1/64 I have the answer as log4 1/64 =-3 144^1/2 =12 I have the answer as log 144^12 =1/2

So then are these answers right? 10.) 4^-3 =1/64 I have the answer as log4 1/64 =-3 11.) 144^1/2 =12 I have the answer as log 144^12 =1/2

Okay I got it log (8/3) = log 8 - log 3 = 2.079 - 1.099 = 0.98 log 24 = log (3x8) = log 3 + log 8 = 3.688 log 25 = log 5^2 = 2 log 5 = 2.138

actually the +3 is separte so it is f(x)= e^x +3 and the second problem is g(x)= In(x-1)

Where appropriate, include the approximation to the nearest ten-thousandth. 24.) 3^x= 1/81 I have x = 1/5 25.) logx 125 =3 I have x = 5 26.) log64 x = 1/2 I have x = 8 Are these answers right?

Where appropriate, include the approximation to the nearest ten-thousandth. 24.) 3^x= 1/81 I have x = 1/5 25.) logx 125 =3 I have x = 5 26.) log64 x = 1/2 I have x = 8 Are these answers right?

Okay x^2-4 = 4 x^2= 8 sqrt(x^2)= sqrt 8 x= 2.83 is this right?

27.) x=1 28.) I have x= 2/9 Not sure about the last two 29.) 8^x =5.2 not sure 30.) 1n x=5/8 not sure

Answer: In order to have a dipole moment (i.e., to be a polar molecule) a molecule must have polar bonds and must have a molecular geometry which is not symmetrical (i.e., one in which the vector sum of the bond dipoles  0). In CH2F2 the C-F and C-H bond...

18 inches is the answer to the first question because you must be 48 but you are only 30 now, you must grow 18 (48-30) 1,010 is the answer to the second question, 840+1,150=1990 but you can only eat 3,000-1,990 now which is 1,010 :)

So after i do all that should i get one whole number

I looked over the website you provided, and it gives some of what I am looking for, but still not all. My instructor has not provided me anything else to go on so Im kind of on my own here. Thank you for the website link though. Any other help would great...

1.True 2.A 3.B 4.D 5.A 6.True 7.c. 8.False 9.True 10False 11.A 12.True 13.True 14.D 15.A 16.C 17.False 18.C 19.True 20.true 21.C. 22.A. 23.B 23

1.True 2.A 3.B 4.D 5.A 6.True 7.c. 8.False 9.True 10False 11.A 12.True 13.True 14.D 15.A 16.C 17.False 18.C 19.True 20.true 21.C. 22.A. 23.B 23.B.

1. True 2.b. 3.d. 4.a. 5.a.

The c with the line through it is a degree symbol, and the e is a ^ symble. I am sorry the computer put it in that way.

The answer is 2450 J/K but I can't figure out how to get that.

wait can it be C?

What word best fits this Sentence. ¿Dónde están Uds.? (Está) (Estás) (Estoy) (Estamos) en la clase de ciencias naturales.

How did you get the first part?

VW Golf: $250 Saab: $300 Mercedes $4200 Jaguar $300 Expected profit for 500 customers: $2,545,000

4 C3H5(NO3)3(s) ---> 12 CO2(g) + 10 H2O(g) + 6 N2(g) + O2(g) 1.3 e 2

The guy wire, the telephone phone and the ground form a right-angled triangle. Your measurements are x, x+4, and 20. To solve for x, you could use the Pythagorean Theorem, a^2+b^2=c^2. Let a=x Let b=x+4 Let c=20 First, plug in the values for a, b and c, a...

I'm confused whats the problem looks to me all you need to do is plug and chug.to find temperature make sure it is in kelvin.

Oh this is easy. I want you to take a look at your periodic table. Any elements that's toward the left and down are larger in Atomic size. So for instance rubidium is the largest in atomic size due to it further down and to the left.

Oh this is easy. I want you to take a look at your periodic table. Any elements that's toward the left and down are larger in Atomic size. So for instance rubidium is the largest in atomic size due to it further down and to the left.

Think of Boyle's law from the three gas laws. P1V1=P2V2.you have p1, p2 and v1. then it just simple algebra solve for v2.

first thing about percentage problems think either decimals or factions. Decimals if your teacher is nice and lets you use a calculator. .15*329=$49.35 will be taken off the original price $329.00-$49.35=$279.65 new discounted price Now for the fractional...

Really? This is your equation for part A? **Please do not use this or it will be wrong..

Find a common denominator.

Statistical Techniques in Business and Economics 15 edition three years after this post STILL has all the answers wrong for this section. 19. Correct answer is 97 21 correct answer is 196 23 correct answer is 554 25. E=.04,Z=1.96,p=.6, find N. N=576.24=57...

Maggie, First Answer Is Wrong It's a marriage in the slaveholder’s family

The Rest is right, Tell me what you get :)