Monday

April 27, 2015

April 27, 2015

Total # Posts: 3,962

**physics**

Assume that the Earth is spherical and recall that latitudes range from 0° at the Equator to 90° N at the North Pole. Consider Dubuque, Iowa (42.50° N latitude), and Guatemala City (14.62° N latitude). The two cities lie on approximately the same longitude. Do ...
*February 15, 2012*

**physical science**

5/17=0.294 N
*February 15, 2012*

**physics**

it is d
*February 15, 2012*

**physics**

for L, are you using the answer from part a?? when i use that i get around 14 degrees
*February 15, 2012*

**physics**

Assume that the Earth is spherical and recall that latitudes range from 0° at the Equator to 90° N at the North Pole. Consider Dubuque, Iowa (42.50° N latitude), and Guatemala City (14.62° N latitude). The two cities lie on approximately the same longitude. Do ...
*February 15, 2012*

**English 5 questions**

1. During this time period, writers sought to capture the _____________ of the American people during this era of a new postwar economy and society. peace anger anxiety all of the above 2. Like the modernists, postmodern writers focused on _____________ experience and ...
*February 15, 2012*

**physics**

thanks
*February 15, 2012*

**physics**

A man with a mass of 50 kg stands up in a 66-kg canoe of length 4.0 m floating on water. He walks from a point 0.75 m from the back of the canoe to a point 0.75 m from the front of the canoe. Assume negligible friction between the canoe and the water. How far does the canoe ...
*February 15, 2012*

**1 chem question**

A base has a Kb of 2.5 x 10–11. Which of the following statements is true? This is a concentrated base. This base ionizes slightly in aqueous solution. This is a strong base. An aqueous solution of this base would be acidic. (do explain. i dont understand this one)
*February 14, 2012*

**physics**

A man with a mass of 52 kg stands up in a 66-kg canoe of length 4.0 m floating on water. He walks from a point 0.75 m from the back of the canoe to a point 0.75 m from the front of the canoe. Assume negligible friction between the canoe and the water. How far does the canoe ...
*February 14, 2012*

**Physics**

Pepper pulls a 20.0 kg object along the floor accelerating at 2 m/s/s, and μ = .2. How much work has he done while pulling the string 5.0 m? If it takes her 1.0 seconds, how much power has she used? If 1.0 kcal = 4184 J, and an Oreo has 50 kcal, how many Oreos did Pepper ...
*February 14, 2012*

**Physics**

Pepper pulls a 20.0 kg object along the floor accelerating at 2 m/s/s, and μ = .2. How much work has he done while pulling the string 5.0 m? If it takes her 1.0 seconds, how much power has she used? If 1.0 kcal = 4184 J, and an Oreo has 50 kcal, how many Oreos did Pepper ...
*February 13, 2012*

**Chem**

Which of these solutions is the most basic? [H+] = 1 x 10–2 M [OH–] = 1 x 10–4 M [H+] = 1 x 10–11 M [OH–] = 1 x 10–13M i think its the first one?
*February 13, 2012*

**Chemistry**

I just wanted to say i found this question and if helped me so much with my homework! thank you so much DrBob222!!
*February 13, 2012*

**Algebra**

Find the square roots of 25
*February 11, 2012*

**Chem**

Which of the following statements is part of the kinetic theory? The particles of a gas move independently of each other. The particles in a gas move rapidly. The particles in a gas are relatively far apart. all of the above
*February 10, 2012*

**physics**

convert 52 g to kg and then 218 divided by that number
*February 10, 2012*

**physics**

I did that but i am not getting the right answer
*February 10, 2012*

**physics**

Betty Bodycheck (mB = 50.2 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 45.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
*February 10, 2012*

**physics**

The question is what are their final kinetic energy?
*February 10, 2012*

**physics**

Betty Bodycheck (mB = 50 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 45.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
*February 10, 2012*

**physics**

This means that for every action, there is an equal and opposite reaction
*February 10, 2012*

**math**

454.86
*February 9, 2012*

**physics**

A billiard ball of mass 0.16 kg has a speed of 1.80 m/s and collides with the side of the billiard table at an angle of 34.6°. For this collision, the coefficient of restitution is 0.841. What is the angle relative to the side (in degrees) at which the ball moves away from...
*February 9, 2012*

**Psychology**

As a consumer of mental health services, which type of therapy would you prefer if you did not like to talk about your problems? If you were suffering from a phobia? If you had recurring nightmares since childhood? If you wanted to improve your marriage?
*February 9, 2012*

**trig**

if diameter of the circle is 100 cm. and length of the arc forming the angle is 360 cm. Assume that the earth is a perfect sphere of diameter 8000 miles. Find the distance between: Rome, Italy: latitude 42 degrees north Copenhagen, Denmark: latitude 54.3 degrees north
*February 8, 2012*

**Geometry**

What is the measures of the angles of a triangle that are in the extended ratio 2:2:8. What is the measure of the smallest angle?
*February 8, 2012*

**poetry**

what is the genre of the poem: tonight i can write by pablo neruda?
*February 6, 2012*

**English**

faith that he will one day be affirmed by white America. ???
*February 6, 2012*

**English**

The speaker in “I, Too, Sing America” survives adversity because he feels faith that he will one day be affirmed by white America. he has uncovered the hypocrisy around him. he is better than the people who are oppressing him. hope that he can one day run away from ...
*February 6, 2012*

**English**

F. Scott Fitzgerald dropped out of college to ..... begin writing. get married. join the army. work for his father.
*February 5, 2012*

**chemistry**

A 40-year old man, at a prominent legal firm experiences abdominal pain post lunch. He takes several trips to the restroom, but continues to experience pain and cramps. He decides to go to the doctor and admits he consumed 2 bottles of beer @ lunch. The alcohol content (...
*February 5, 2012*

**English**

Why don’t the narrator and the other man want to hold Edward for ransom? Is their motivation internal or external? in " Why, You Reckon?"
*February 4, 2012*

**calculus**

Solve for x: 2x=ex+1
*February 2, 2012*

**calculus**

Put the function P=40(39)t in the form P0e^kt. When written in this form, you have: k= ? P0= ?
*January 31, 2012*

**calculus**

I don't know if I'm typing it in wrong into my graphing calculator but I need to estimate the limits of sin(8 theta) / theta
*January 31, 2012*

**biochemistry **

If you make up a solution of 100 mL of 0.1 M HEPES in the basic form, what will be the pH? I have no idea where to even start...
*January 30, 2012*

**psy/300**

What are the positive aspects of peer groups during adolescence? Which of Erikson's stages describes the psychological issues of adolescence.
*January 28, 2012*

**chemistry**

thank you
*January 26, 2012*

**chemistry**

Freshman in clooege decides to try her hand at pickling olives. According to the recipe, she needs to add 3 tsps. of salt to 1 cup diced olives. She erroneously adds 6 tsps instead. Each tsp weighs about 5g and contains 2300 mg of sodium. Determine the amount of sodium added ...
*January 26, 2012*

**Physics**

On a safari, a team of naturalists sets out toward a research station located 7.0 km away in a direction 42° north of east. After traveling in a straight line for 3.1 km, they stop and discover that they have been traveling 20° north of east, because their guide ...
*January 23, 2012*

**calculus**

Thanks Steve, I didn't know how to use this function on the calculator.
*January 23, 2012*

**calculus**

calculate y = log_10(x) where x = 0.3
*January 23, 2012*

**chemistry**

Thanks, That's it!
*January 23, 2012*

**chemistry**

that is very true. What I was asking involves something like this as an example: 30mg/kg*1000g / 1kg* 1g /1000mg 30-/kg* 1000-/1-* 1g/1000- 30 * 1000/1000 * 1g = 30g
*January 23, 2012*

**chemistry**

Tell me what you think: I wrote #kg = 297mg / 3.5 mg/kg the mg's would eliminate each other and you are left with 297 / 3.5 kg = 85 kg.
*January 23, 2012*

**chemistry**

The physician has prescribed a medication of 3.5 mg/kg of body weight. If you give 297 mg of medication what is body weight of patient in kg? Is there a converstion formula?
*January 23, 2012*

**Chemistry**

I'm sorry, let me re ask this question and tell you what I've come up with ( I work 11pm-7am and do not sleep in daylight hours) Given 30mg/kg and need grams per dose with dosage every twelve hours. Here's what I've attempted: need to change mg/kg to grams --&...
*January 20, 2012*

**Chemistry**

The question just gives me the dosage of 30 m/kg for every twelve hours and asks what the dosage would be in grams.
*January 20, 2012*

**Chemistry**

I need the equation for determining how to decide : You are given a dosage of 30m/kg to be given every twelve hours, how much is given (in grams) with each dose. I know the answer is obviously 15 m/kg but what is it in grams?
*January 20, 2012*

**algebra**

amanda weighs 3/4 as much as er ister. if amanda weighs 129 how musch does her sister weigh? how do you write the equation with x being the sisters weight.
*January 19, 2012*

**Math**

The vertices of an isosceles triangle are A(3, 6), B(7, 2), and C(4, 3). What is the equation of the triangle's line of symmetry? y= x+1 y= x-1 y= x y = -x+1
*January 18, 2012*

**math**

a rectangular swimming pool is 15 yds x 25 yds. the bottom of the pool needs to be repainted. if it costs $4.25 per square foot to paint the pool, give the cost to repaint the bottom of the pool.
*January 17, 2012*

**Statistics-Confidence Interval**

Can someone please help me on how to work this out?? I'm so super confused. Thanks! A professor at Kaplan University claims that the average age of all Kaplan students is 36 years old. Use a 95% confidence interval to test the professor's claim. Is the professor's ...
*January 16, 2012*

**Chemistry**

What is the net ionic equation for this reaction? 2MnO4 (aq) + 5H2C2O4 (aq) + 6H(aq)----->10CO2 (g) + 2Mn(aq) + 8H2O(l)
*January 16, 2012*

**statistics**

Facebook reports that the average number of Facebook friends worldwide is 175.5 with a standard deviation of 90.57. If you were to take a sample of 25 students, what is the probability that the mean number Facebook friends in the sample will be 190 friends or more?
*January 15, 2012*

**precalculus**

thank you my precalculus is now done - chemistry is next- can't wait!!
*January 15, 2012*

**precalculus**

given functions f,g, and h find f o g o h state exact domain. show work f(x)=1/x g(x)=lnx h(x)=2x+15
*January 15, 2012*

**precalculus**

these are hard to do - thank you
*January 15, 2012*

**precalculus**

verify the functions are inverses of each other by showing that f(g(x)) =x show work. f(x)=6/1-x g(x)= 1- 6/x
*January 15, 2012*

**precalculus**

I'm going to do this on my own, but I would like to check mine against yours - give me today to work on it and I will be able to compare. List all possible rational zeros for the polynomial find all real zeros and factor completely. show work f(x)=3x^4-29x^3+89x^2-75x-36 ...
*January 15, 2012*

**precalculus**

x/4x+1 < 5x/6 solve the inequality answer in interval notation and show work - thanks
*January 15, 2012*

**precalculus**

Thanks Reiny - you have rescued me again
*January 15, 2012*

**precalculus**

solve logarithmic equation in exact form only. show work. log_5(x-3)+ log_5(x-6)-log_5(x+1)=2
*January 15, 2012*

**precalculus**

thanks again
*January 15, 2012*

**precalculus**

solve exponential equation. express in exact form. e^x-42e^-x= -19
*January 15, 2012*

**precalculus**

solve the inequality please x^4-6561>0 So far I have come up with x^4>9^4. I guess what's throwing me is the answer has to be in interval notation and for the life of me, I can't remember what that is! (for me, it used to be a blond moment - now I'm gray with...
*January 14, 2012*

**precalculus**

find the inverse of function f(x)=4-2ln(x+1). state domain, range and any asymptotes of both
*January 14, 2012*

**precalculus**

Reiny: Thanks for the websites - they have helped immensely.
*January 14, 2012*

**precalculus**

given the following rational function f(x)= x^2+5x-7 / x-4 state domain, find vertical, horizontal and oblique asymptotes if any. I found the domain to be (-inf.,4)U(4, inf.) and vertical asymptote at x=4 am I right? can someone help me with the rest?
*January 14, 2012*

**precalculus**

Thanks, Steve - I cn never get my graphs right - I get all the work, but to draw?! forget it.
*January 13, 2012*

**precalculus**

sorry-operating on no sleep for at least 24 hours! f(x)=(x+3)(x-1)^2 analyze x and y intercepts; end behavior and maximum number of turning points.
*January 13, 2012*

**precalculus**

analyze the graph of f(x)=(x+3)x-1)^2 x and y itercepts; end behavior; and maximum number of turning points
*January 13, 2012*

**precalculus**

have to graph the following piecewise function stating values for f(0) and f(-2) {-x-2 if x<=-1 f(x)={3 if -1<x<=1 {2x+5 if x>=2
*January 13, 2012*

**precalculus**

drwls, I should have told you that I do the work myself and with your answers, I confirm what I've done or prove I know nothing--Thanks for your time.
*January 13, 2012*

**precalculus**

another one where I need points to graph please. f(x)=(7/5)^(3-x).
*January 13, 2012*

**precalculus**

I have the problem 2e^x = squareroot(10e^x) +3. the solution must be in exact form only.
*January 13, 2012*

**precalculus**

I'm sorry, started a new job and have put in a lot of hours for training - must have forgotten that you replied.
*January 13, 2012*

**precalculus**

how would I find points to plot a graph for the function f(x)=ln(4-x)?
*January 13, 2012*

**precalculus**

sorry about that squre root (10e^x) +3
*January 11, 2012*

**precalculus**

solve the exponential equation express in exact form only show all work. 2e^x= squareroot 10e^x +3
*January 11, 2012*

**precalculus**

solve the logarithm equation show work. log_7(x-8)- log_7(x-2)=1
*January 11, 2012*

**precalculus**

write the expression below as a single logarithm show work. ln(x-7/x^2+12x+36)-ln(x^2-49/x+6)
*January 11, 2012*

**precalculus**

use properties of logarithm to find the exact value of the expression. squareroot log_2/9(2/9)
*January 11, 2012*

**pre-calculus**

solve equation show work. log_2(x^2+47)=7
*January 11, 2012*

**calculus**

graph this function and determine the domain,range and vertical asymptote. f(x)=In(4-x) no need to graph just assist with points
*January 11, 2012*

**math**

graph the function below. Determine the domain, range, and horizontal asymptote. show work f(x)=(7/5)^(x-3)
*January 11, 2012*

**math**

verify that the function f and g are inverse of each other by showing f(g(x)) and g(f(x)) =x f(x)= 6-2/5x g(x)=15-5/2x
*January 11, 2012*

**math**

find the components f and g so that f og=H H(x) = (1/x+1)^15
*January 11, 2012*

**math**

Reiny, that is correct, but I cannot type the squareroot sign with my computer - how do I find the domain, of this function?
*January 11, 2012*

**math**

for the given functions f and g find f o g and state the domain show all work f(x)=sqrt x-3 g(x)=x^2-7x+9
*January 11, 2012*

**Math**

Suppose you have 100ft of fence to make a play area for your dog. Does a square or circle provide more area? What other factors might you take into consideration in designing your play area?
*January 10, 2012*

**Math**

A rectangular room measures 15ft by 21ft. How much will it cost to carpet this room if carpeting costs $17.95 per square yard?
*January 10, 2012*

**precalculus**

solve the following exponential equation. show all work. 4^(4x+2)= 1/64
*January 9, 2012*

**precalculus**

write the expression as a sum or difference of logarithms. express powers as factors show all work log4 sqrt pq/7
*January 9, 2012*

**precalculus**

solve the following equation show all work log4(x-4)= -1.
*January 9, 2012*

**precalculus**

given the function y=2-log(x) find domain, determine vertical asymptote and show work.
*January 9, 2012*

**precalculus**

the following function is one-to-one find its inverse. find domain and range of f and f^-1 show work f(x)=^3sqrt(x-3)
*January 9, 2012*

**precalculus**

use transformation to graph the following function - state domain, range and horizontal asymptote f(x)= e^5x.
*January 9, 2012*

**precalculus**

find the exact value of the following logarithm. Use the properties of logarithms show all work. log2 34-log2 17 (Those are little two's)
*January 9, 2012*