Math(Please help)
187,645 results, page 92

Physics (ASAP PLEASE)
Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you 
Geometry
I need to do an assignment where I find two cereal boxes that have the same volume but differ in surface area? Can someone please tell me when I'm looking at the boxes what I need to be looking at to compare these two things please? Thank you! 
Algebra please help
1 hour= 3,600 seconds and 1 mile=5,280 feet. Make a conjecture about how you would convert a speed of 15 miles per hour to feet per second. Then convert. Please help answer thx 
Physics  please help!
Hello! I don't understand how to solve this physics problem, please help me: A projectile is launched at 15 degrees. The landing height is the same as the launch position. At what other angle can the projectile be launch to achieve the same horizontal displacement? 
Math Help Please
Can you Please explain the answer that I received of 2469? It is the correct answer but I do not understand how to show the work. Thank you *************************************** Using the 9 digits, 1, 2, 3, 4, 5, 6,7, 8 and 9 you can arrange four different digits to form a ... 
Math
The temperature changed from 11 degrees C at noon to 4 degrees C at 8:00 p.m. How many degrees did the temperature drop. Please illustrate answer. Thanks 
math 2nd question please help
cos^2xcos^2y+sin^2xsin^2y+sin^2xcos^2y+sin^2ycos^2x = 1 
math please help
The length of a rectangle is 8 in. more than twice its width. If the perimeter of the rectangle is 34 in., find the width of the rectangle.is it 1. 2 in. 2. 3 in. 3. 4 in. 4. 5 in. 
math
At the animal shelter, 1/3 of the animals are dogs, 2/12 are cats, and 19 are other animals. How many animals are at the shelter? is the answer 22?? help me please 
math
I am a mom and I can't remember how to do this... 3 and 2 over 9 minus 1 and 1 over 3 equals p minus 5 and 1 over 2?? ahhhh help me help my daughter please. 
Math
A wall hanging is x inches wide and has a height of 4x inches. If the perimeter is 40inches, what is the height in inches? Please help! 
Math URGENT!
the roots of a tree are 1/8 of the tree. they are 0.87 m. how tall is the tree? my answer: 0.87 x 7 = 6.09 m please check if my answer is right thanks :) 
Math Please Help
Eliminate the parameter and sketch the curve. x=cos(theta) , y=cos^2(theta) + 8cos(theta) 
Math please help
The measure of the supplement of an angle is 30 more than twice the measure of the angle. Find the measure of the angles. 
Math Urgent Please Help
Which coordinates could be the vertices of a triangle similar to triangle RST? {original triangle coordinates R(0,0); S(0,4); T(3,0)} a. (2,2), (2,6), and (6,0)*** b. (0,0), (0,6), and (10,0) c. (2,2), (2,10), and (6,2) d. (0,0), (0,8), and (6,0) 
Math drwls please help
Derive the basis functions Ni,3(u) and find the equation for the open quadratic Bspline curve defined by five control points p0, p1, p2, p3, and p4. I know the formula is P(u)= the sum of n,i=0(PiNi,k (u)) it's difficult to type the formula in this text box. I hope you can ... 
Chemistry
Okay, in this prolem i need to balence this equation. Even our teacher had problems with it, but he refuses to help anyone. PbCrO4 + HCL + FeSO4 > PbCl2 + Cr2 (SO4)3 + H2O + Fe2(SO4)3 please help me. this is the last problem on my homework. then im off to start math :) ... 
math(please help urgent)
1) Find the values (if possible) of the six trigonometric functions of o if the terminal side of o lies on the given line in the specified quadrant. y=1/3x 2)Evaluate (if possible)the sine, cosine, and tangent of the angles without a calculator. (a) 10pie/3 (b) 17pie/3 
math
Theses are just some problems i did not understand how to do so if you could please explain and write the answer(: anything helps thank you(: 2. Simplify (3x^11z^5)^3 b. (3x^5)^ 3 / 2x5(3y)^4 c.3x^5)^ 3 / 2x ^ 5(3y)^4 (same as b but  5 is the exponent) 3a.x^2 / 5 + x5... 
math
Describe a simple process for using rates and unit prices that might help someone who is having difficulty understanding these concepts. Include either an example from the text or one of your own examples to explain the solution process. I need help please!!!! 
math
Use the limit definition of the derivative to find f′(x) if 1. f(x) = x^2 + 3x 2. f(x) = 1/x + 1 now what i am confuse with is that there is no value given for x. So how is one suppose to do these problems. please show steps and this is just the 3rd chapter of my calc ... 
math
Hello! My name is Robert and I am in 6th grade. I have a question about my homework and my mom and dad cant help u because they are still at work and i need help.Can you please tell me what a division problem that has the same answer as 4.65 divided by 0.12 is? If you can u ... 
math
PLEASE I NEED HELPPPPP.. i have many exercises like that, just want to know where to start thanks. f(x)= x^3+2x^2x2 / x^2+x6 find: 1. domain 2. symmetry or not 3. determine if f(x)is: a)in lowest trem b)proper/improper 4. xintercepts, yintercepts 5. zeros of f(x) and ... 
Math
Corn is poured through a chute at the rate of 10ft^3 / min and falls in a conical pile whose bottom radius is always half the height. How fast is the circumference of the base changing when the pile is 8 feet high? Please explain 
Math
In a factory, a parabolic mirror to be used in a searchlight was placed on the floor. It measured 40 centimeters tall and 90 centimeters wide. Find the equation of the parabola. I tried working this problem out and I got y=8/405x^2+40, but I'm not sure if it is right. Could ... 
MATH :)
For each of the following measurements state the number of significant digits: A length of 2.3 meters A volume of 0.65 liters A time of 0.0004 secs A population of 65,000,000 A distance of 1.30 x 104 I got: 1. 2 2. 2 3. 1 4. 2 5. 2 Just need someone to check my answers please ... 
Math Problem (please help)
On the day of a child's birth, a deposit of $30,000 is made in a trust fund that pays 3% interest, compounded continuously. Determine the balance in this account on the child's 30th birthday. (Round your answer to two decimal places.) 
Math
Meghan deposited $2,500in an account at a bank that pays 16% compounded quarterly. Use the compound interest table to find the interest earned on the investment after 2 years. a. $921.43 b. $204 c. $2,704 d. $3,421.43 **This is a sample question** (Please Help!) 
Math
1. Use MATLAB Optimization Tool to solve the following problem: minimize [2x1^2+2x1x2+x2^210x110x2] subject to [x1^2+x2^2≤500] and [5x1x2 ≤ 4] . 2. Please handcheck all the KuhnTucker conditions for your answer. 
english/vocabulary
can you please help me on word study with writing with idioms ? 1. sick as a dog 2. the best of both worlds 3. under the weather 4. nest eggs 5. when pigs fly 6. slip through the cracks 7. go to seed 8 . thorn in your side 9. turn over a new leaf 10. fifth wheel 11. pitch in ... 
math,correction from previous post
can someone please correct this for me thanks. simplify: 7sqrt(7x) + 5 sqrt (7x) My work: (7+5)sqrt (7x) My answer: 12sqrt (7x) is this correct? yup so i don't have to take out the x from the radicand Nope. 7x + 5x = 12x No matter what "x" is. 
Math
can you put this into least to greastest5/8,2/7,3/10 It doesn't help when someone else does your work for you. Please let us know what YOU think the order is, and someone here will give you feedback. =) It's 2/7, 3/10, 5/8 i have an assignment were i have to find out about ... 
math
Hi, I had a question about exponential functions. If f(x)=ab to the x power, were a does not equal zero, b is greater than 0 and b does not equal one. Therefore if b=1/2, then the graph of the function never crosses the yaxis. What is the answer to this question, true or ... 
To Justine: 6th grade math
I removed your post because you gave the name of your school. For your own protection, please do not post any personal information. You asked: "what does E equles?" What is the whole problem? We'd like to help you, but need more information. 
8th Grade Math
Can someone please help me with the following problems? I do not have the formula for finding the slope of a line. These are not homework they are for a portfolio. Find the slope of each of the following lines. 1. y=517 2. 10 + y = x 3. y = 2x  5 4. 4x + y = 0 5. 3x  4y... 
To NEO LOUIS  Math
I've removed your very complicated post, for which you have supplied no thinking on your own. Please repost when you can demonstrate that you have tried to answer all these questions  and/or when you ask specific questions about your assignment. 
Math
Sharon was playing darts. She threw six darts and all of them hit the target. Which of the following could be her score? The target goes from 9 in the center, then 7, 5 , 3, and 1 on the outside ring. Possible Scores: 4 17 56 28 29 31 50 8 Please give a quick explanation. 
Math
In a competition, only the top 3 horses receive prizes. How many possible ways can a 1st, 2nd, and 3rd prize be awarded if the competition has 12 horses? A. 36 B. 220 C. 440 D. 1320 Also, is this a permutation or a combination? Please Help!! Thank you. 
5th grade math
divide and simplify 7/18 divided by 14/39 the first step is to change the recipricol which is 14/39 = 39/14 then multiply 7 x 39=273 18x14=252 the answer is 273/252 I am not good at simplifying big numbers can someone please help me? 
math, 5th grade
I am really stuck on how to figure this answer out, could you please help me? A stoplight flashes red for 50seconds, yellow for five seconds, and green for 65 seconds. In a 24 hour period, how long is the light red? 
Math
Hello, I am learning about Taylor series in school, but they are quite confusing.. Can you please explain how I should do this problem? Thank you very much! What is the Taylor polynomial of order 5 approximation to sin(1.5) ? I know the series of sinx = x  ((x^3)/(3!)) + ((x^... 
math
Please show me the steps to solve this problem: The total shipping weight of two crates is 358 pounds. One crate weighs 124 pounds more than the other. What does eah crate weigh? 
math
Two number cubes are rolled—one red and one black. Explain why the events “the red cube shows a 6” and “the sum is greater than or equal to 10” are dependent, and find the probability. answer please :) i don't get this question 
math
please explain: sam invested part of his $25,000 bonus in a fund that paid 8% profit and invested the rest in stock that suffered a 3% loss. Find the amount in each investment if his overall net profit was $1230. 
math
compounded what would be the amount of compound interest on $12,000 invested for one year at 6%, compounded quarterly? round your answer to the nearest tenth. could you show me the work please ? i had $737.00 is that answer correct? 
Science and Math Combined
Can someone please help me understand how I figure out how much electricity I used when using a small appliance (lets say 300 watts. For the duration of 3 hours? Does anyone know the formula to figure this out? 
math
The number of washers 3/32 inch thick that can be cut from a piece of stock 25 1/2 inches long, allowing 1/16 inch for waste for each cut is (A) 160 (B) 163 (C) 260 (D) 272 (E) 408 not just answer, please tell me how to do it 
5th grade math parent
Hi the problem reads.......give an example that shows how to use.the distributive property to multiply a number by a sum. All of the numbers you use should be mixed numbers or fractions.........PLEASE HELP! 
Math
Danny has a yard in the shape of a parallelogram: width (50 m) length (60 m) height (60 m) he want to split it into 3 pieces, with more than one type of shape. they should all have equal perimeter. the perimeter can not be in decimals. (Help please) 
Math
Danny has a yard in the shape of a parallelogram: width (50 m) length (60 m) height (60 m) he want to split it into 3 pieces, with more than one type of shape. they should all have equal perimeter. the perimeter can not be in decimals. (Help please) 
math
Im confused on how to solve this question,please help.Meryl spends a total of $68.82 for 2 pairs of sneakers with same cost.sales tax is $5.32.she also uses a coupon for $3.00 off her purchase.How much does each pair of sneakers cost? 
math
patterns with fractions write a rule for the sequence.then,find the unknown number how do you do this?ill give you an example...1/2, 2/3, 1, 1 1/6.it says,think:the pattern is increasing.add 1/6 to find the next term.here is a problem.... 1 3/8, 1 3/4, 2 1/8, 2 7/8 rule: I don... 
math
john counts backward from 140by twenties and lee counts backward from 120 by tens.how many of the same numbers do they say down to zero? can only body show me how to work out please,thankss 
math: set theory
{XX E N and x greater than or equal to 4} This is a set theory problem:  = means such that is E = is a symbol used to replace the words "is an element of" N= represents all natural numbers answer choices are: a) {5,6,7,...,100} b) {5,6,7,...} c) {4,5,6} d) {4,5,6,...} please... 
Math
If a plane flies due north for 70km, then due west for 145km, what would the compass bearing be for the plane from its starting point? Please email me once you have the result at jodie.jebb@moc.sa.edu.au 
Math Linear Equations
Two lines are drawn on a coordinate axis. The equation of the first line is y=2,and the equation of the other line is y=3x+1. What are the coordinates of their intersection point? I have been on this for hours and can't figure out how to do this. Please help. Thank you 
Math
1) Prove that for every x>=0 and 0<a<1 x^aax<=1a 2)prove that for 0<=x<=1: x^m*(1x)^n<= (m^m*n^n)/((m+n)^(m+n)) can someone please guide/help me in about how to solve and or approch these questions? (I know I have already posted it before but i think it... 
Math
A student covers the outside of a show box with construction paper. If the student does not cover the lid, what is the surface area that is covered? Please show work. Possible answers: A) 982.25 B) 1433.50 C) 1964.50 D) 5044.50 
math
I'm so lost I have no idea. Please help Write the equation of the line that represents this graph. Show your work or explain how you determined the equations. graph of line going through ordered pairs (0, 300) and (450, 0) 
math
A cylindrical metal radius 7cm and height 15cm has its centre drilled with a hole of 5cm in crosssection. If 152cm(cube) of d metal weight 125kg, what is the weight of d hallowed cylinder? How do I solve this please? 
Math
A town in east Texas received 10 inches of rain in two 2 weeks if it kept raining at this rate for a 31 day month, how much rain did the town receive? I am confused on how to figure out the answer for this. Can you please help me. 
Math
Jamie used a microscope to measure the diameter of a hair. She found that the diameter of the hair was 0.000072 meter. How is this number written in scientific notation? I know the answer is 7.2 times 10 exponent 5 but can someone tell me the steps please? 
math
One lap around a track is equal to onesixth of a mile. A horse ran a distance of 7 laps in 3 minutes and 20 seconds. What is the horse’s average speed in miles per minute? HELPPP PLEASE!!!!!! 
Math (please help asap)
Jacque's clock strikes every 15 minutes. how many times does it strike in a week? A: 96* B: 28 C: 2,250 D: 672 I'm pretty sure its A, but i'm not sure how to do the problem. Can someone tell me if its right or point me in the right direction? 
math project...PLEASE HELP...
I am doing a math project on Leonardo Fibonacci, the creator of the Fibonacci's Sequence. I was wondering if someone could please tell me a website where I could get more information about his marriage. can someone help me? http://www.google.com/search?as_q=Fibonacci+biography... 
math
Hi, I have a math problem that I can't understand how to write the equation for. The question says: a ball is thrown upwards from an initial height of 20 meters at an initial velocity of 10 meters per second. Write an equation for the height (h) of the ball at time (t). My ... 
Math
I have no idea what is the first step in the question. Please solve it for me. Following is the question relating to the chapter i.e. Vectors in two dimensions: {1} If a= (p+q p), b= (3 q+1) and a=b, find the values of p and q. NB: The bracket of a and b represents column ... 
Math
Your phone company charges $0.05 per minute for long distance phone calls on the weekend. Write a direct variation model that relates the total cost x to the number of minutes y spent talking on the phone. y=0.05x ?? I don't know how to do this. Please help!! 
Math (Algebra 1)
Consider the ages of 5 brothers: 32, 26, 28, 30, 28. Determine which of the following are true if a new brother is adopted at age 10. A) The median will decrease B) The mean will decrease C) The range will increase D) The standard deviation will decrease Please explain how you... 
math
A rocket follows a parabolic trajectory. After t seconds, the vertical height of the rocket above the ground, in metres, is given by H(t) = 37t – t . Find the length of time the rocket is in the air. Could you please explain me, why answer is 37s? Thank you so, so much:)) 
Math 222
Posted by Monica on Thursday, October 23, 2014 at 6:36pm. Please help me solve these two Rational Expressions? Sorry my addition sign does not work on my keyboard, so that is why I am using the word "plus". 1). g^26g55 __________ g 2). k^3 plus k ___________ k^2 plus k42 
Math
Emma started with a certain amount of money. She spent 2/5 of her money. She earned €5 the next day. Later, she lost 3/7 of her money, but she still had €20 left. How much did she start with? answer at the back of the book is €50 please show working 
Linear Equations
Can you please help solve this equation using the substitution method? I have tried and keep getting that X and Y = 7/2, but the answer in the book states no solution, inconsistent system. What am I doing wrong? Please help! Solve the systems of equations by the substitution ... 
Chemistry
Compare two reactions, one requiring the simultaneous collision of three molecules and the other requiring a collision between two molecules. From the standpoint of statistics, which reaction should be faster? Can someone please help&explain this please? 
calculus repost, please assist pleassssssse
Hi Trying to work with confusing Taylor series....any assistance would be much appreciated!! How can I use T(x)=59((x2)^2)3((x2)^3) to approximate the f(0) ???? I realize that Taylor series f(x)=f(a)+f'(a)(xa)+f''(a)((xa)^2)etc... but the above T(x) is centered at x=2, ... 
Ap calc.. Dying!! Please help!
Given the curve x^2xy+y^2=9 A) write a general expression for the slope of the curve. B) find the coordinates of the points on the curve where the tangents are vertical C) at the point (0,3) find the rate of change in the slope of the curve with respect to x I don't even know... 
@ABC
Stop posting more questions until you have gone back and followed the directions on the Post a New Question page: Please show your work. Tutors will not do your homework for you. Please show your work for any question that you are posting. 
Sciencemath
The equation for the decomposition of silver oxide is 2(Ag2)o yields 4Ag +o2. Set up ratio to calculate the number of oxygen molecules released when 1 gram of silver oxide is broken down. There are 2.6 x 10 to 21 power molecules in 1 gram of silver oxide. I know that it is a 2... 
Physics please explain
Can you please explain your answer. How did you get blue lamda. Is it because red and green makes blue? How do I find the value of blue lambda? A mixture of red light (vacuum = 661 nm) and green light (vacuum = 551 nm) shines perpendicularly on a soap film (n = 1.35) that has ... 
help please?!(:
Rico's collection of quaters and dimes contains $32.85. There are 171 coins in all How many quarters and how many dimes are in Rico's collection? i solve these with 2 equation. would they be: q + d = 171 25q + 10d = 32.85 help me please. 
chemistry /help please
can someone please help me balance this equation?: potassium permanganate reacts with iron(II)sulfate and sulfuric acid to produce iron(II)sulfate and manganese(II)sulfate and potassium sulfate and water 
Chemistry
Equation: 3CaCl2 (aq) + 2 Na3PO4 (aq) → Ca3(PO4)2 (s) + 6 NaCl (aq) How many grams of Ca3(PO4)2 are formed when 450.0 g NaCl are formed in the reaction? please show steps, please 
AP Calculus
Are infinite discontinuities removable? Also, please help me with this question: f(x)=x^2+4x+3 / x^29 has one removable discontinuity and one vertical asymptote. Find and identify the xvalue for each. I found the asymptote at x=3, but please help for the discontinuity. Thanks! 
Chemistry
Please tell me how many bonds are in cucl2.4h2o and in CuSO4.5h20 and how cu+2 forms bonds in orbitals 4s,3d with cl2,so4. also please tell me 4h2o and 5h2o attachment in orbitals. 
Science please answer?
what is the wavelength and frequency if the wavelengthis4.5x107 Show wok please (7) You have already stated the frequency. Are you talking about light? What are the units of wavelength? meters? cm? feet/ frequency = (wave speed)/(wavelength) You can do the numbers. Make sure... 
English
Which is the pronoun case and why 19a. Please send an invitation to Bob and she. 19b. Please send an invitation to Bob and her. 
PLEASE HELP ASAP ALGEBRA
indentify the sequence as arithmetic, geometric, or neither. 3,4.5,6,7.5,... a. arithmetic b. geometric c. neither please help i don't know the answer 
Math/Health
I was wondering if someone could please help me this is really making me go crazy please check my answers thank you Paul Smith was admitted to the hospital for the first time this year on Sept 15. On Sept 25 he was transferred to a SNF where he stayed until October 30 He was ... 
math 116
Will someone please help me slove this problem. A family refers to a group of two or more people related by birth, marriage,or adoption who resides together. In 2,00in Country A, the average family net worth was $460,000, and there were about 9.3 x 10 to the seventh power ... 
Math, HELP!! URGENT!
Please Simplify: (1/8)(40v−24y)−(1/7)(21v−35y+9)−(1/6) (1/11)(55x−22)−(1/2)(18x−2v) 
English
1. There are a house , trees and a shining sun in the first picture. 2. There is an English textbook in Picture 2. Do you like English. English is fun, isn't it? 3. There are two boys. What are they doing? They are playing with a ball in the sea. 4. A math textbook is in the ... 
Live Help
This may not be homework...but how do I go about using the live help for this site? At this point, live help is not available. Computer glitches, you know. So keep posting your questions on the message boards. Especially in the afternoons and evenings, there are usually ... 
Physics;Help!!!!!!
There is apparently no one online who can help with physics questions right now. Please check back later to see if a physics teacher has addressed your question. Multiple posts won't get faster answers. Thanks. =) The question is in the first question marked physics beside ... 
PROJECTILE MOTION
A ball is thrown horizontally from the top of a cliff 50m high with a velocity of 7m/s. How far from the base of the building does the ball land. This is what I think is how you do the question(Please correct me if I am wrong). y=vt+.5a(t)² 50=0+.5(9.8)t² 10.204=t² t=3.194 ... 
Calculus Please Help
I think I have the right answer, but I am not 100% sure how to do the values at (1,1) and the one below at (0,1, 1). Please explain how I need to approach how to do these. Thank You! Calculate the partial derivative @f/@x, @f/@y and @f/@x  (1,1), and @f/@y  (1,1) f(x,y... 
algebra
For the quadratic function f(x) =  x^2 +2x + 6, find the vertex and the axis of symmetry, and graph the function. Again, I need help with this as these are practice examples for an upcoming quiz and I stink at this part of algebra and I need to get it otherwise I won't ... 
SCIENCEBONESNEED HELP
Do all bones contain bone marrow? (Im specifically talking about the hand bone) Please give me any information on bones, joints, muscles, ligaments, tendons, cartilage, and changes of the hand. I have some, but I want more info. Please help me! Thanks! 
chemsitry
hi I need help with this question please. 1. consider the decomposition of N2O5 in carbon tetrachloride(ccl4) at 45c 2N2O5(soln)> 4NO2(g)+ O2(g) The reacion is first order in N2O5, with the specific rate constant 6.08*10^4 per second.calculate the reaction rate under ... 
Physics Circular motion
A car starts from rest on a curve with a radius of 110m and accelerates at 1.2m/s^2. Through what angle will the car have traveled when the magnitude of its total acceleration is 2.1 m/s^2? I thought i got the answer which was 0.75 rad or 43 degrees but it says its the wrong ... 
ChemPLEASE HELP 911
A compound of carbon, hydrogen, and oxygen was burned in oxygen, and 2.00 g of the compound produced 2.868 g CO2 and 1.567 g H2O. In another experiment 0.1107g of the compound was dissolved in 25.0 g of water. This solution had a freezing point of 0.0894 degrees C. What is ...