188,239 results, page 62

1. ### Linear algebra

Show that the origin is the only equilibrium point of the system? X=ax+by Y=cx+dy Wherea,b,c and d are constants, with ad-bc not aqual to 0(zero) Please show me how to do this problem Please show me the work
2. ### Pre-calculus need help!!

Quadratic Formula 1.) x+6/x=-7 2.) 4x/x+4 + 3/x-1 = 15/x^2+3x-4 3.) x+3/x - 2/x+3 = 6/x^2+3x formula: -B+ sqrt B^2 + (-4)(a)(c)/2a f u only wanted to use the formula it's not necessary though. please help me! it's going to pass tomorrow!! please!

Consider the implicit function ln(xy)-cos^-1(x-1)=x a. Find dy/dx. b. Find y when x = 1. c. Find the equation of the tangent line in slope-intercept form when x = 1. Show steps please! Thanks!
4. ### Calculus Help Please Urgent!!!

Prove that the integral on the interval [a,b] of x is equal (b^2-a^2)/2 integral a to be (x)dx = (b^2-a^2)/2 using the definition of a Definite Integral. This is the limit of a sum approach. show steps please!!! Thank you!!!
5. ### English

Can somebody Please please help. Identify the usage of each of the following modal verbs. May I use your toilet? Mathew might come to see you later. You really should stop smoking. I must do my homework. Monkeys canâ€™t swim
6. ### hca 270

hey yea i posted earlier and i havent responded can some one please hel[p im confused and am cutting close on assinment because ive got things going on and mixed up can someone please help this is due tonite help
7. ### us history

Evaluate the extent to which the Articles of Confederation were effetive in solving the problems that confronted the new nation. Does anywone know where I can find the answer to this? I have to type a whole page on it so I need a lot of information... please and thank you! No ...

Which of the following is not considered part of the "golden age" of microbiology? A.First artificial vaccine is developed B.Gram stain is devised C, Viruses are defined D.all of the above Please do not guess I chose C but i think it was wrong
9. ### History

what does the root distribution within the prairie ecosystem cause? A. The fertile soil underground. B. food for bacteria and organisms C. The variety of grass species D. All of the Above PLEASE HELP Me Connexus quiz My answer is D tell me if im wrong let me know what it ...

Point E(0, -2) is a vertex of square DEFG. After a 90* clockwise rotation of the square about the origin, which of the following is the location of E? A. (-2,0) B. (2,0) C. (2,2) D. (0,2) Point D(-3,5) is a vertex of triangle DEF. After rotation of the triangle about the ...
11. ### Walk Two Moons

A submarine is travelling parallel to the surface of the ocean at a depth of 626m. It begins a constant ascent in order to reach the surface after travelling a distance of 4420m. The ascent takes 35mins. A.) what angle of ascent or angle of elevation would the submarine need ...
13. ### math

16 persons need 56 kg of rice in 1 week. How much rice will be needed by 24 persons in four weeks? ^please anyone over here ryt now may you help me to arrive to the final answer^ 24×(56/16)× 4 math - kelvin today at 2:22pm i had the this idea but i shocked when i saw the ...
14. ### Algebra-exponent

Please help me solve this!!!! 4*(3-x)^4/3 - 5 = 59 (4/3 is an exponent) I got to this far... (3-x)^4/3 = 16 But how do I get rid of the exponent? Please help me my final is tomorrow and I still don't know :(

13. Mia charges \$2.25 per hour when she babysits, plus \$5.00 for transportation expenses. Write a function rule to represent the amount y Mia charges to babysit for x hours. (1 point) y = 2.25x + 5.00 y = 5.00y + 2.25 y = 5.00x + 2.25 y = 7.25x 14. The sale price of ground ...
16. ### math

3 3/4pt=____c show steps and work please Try the method DrWLS or I showed you FIRST. Repost if you still don't get it but tell us what you don't understand about the procedure.
17. ### math

turn this equation: X2 (X to the second power)+16x+15x I'm suppose to use the Distributive Property to factor this expression......HOW?!?!?!? And I also have to show the steps. how?!?!? please help!!
18. ### Math

x=3-3y x+3y=-6 I'm looking for coordinates of where the two lines intercect. If you can, please show your work :) I know it's either (5,-2) or No Solution. But I hate not knowing how something works, and I know that if I don't find out, i'll regret it.
19. ### Math

My teacher forgot to tell me how to exactly solve any problem like this, she ran out of time probably. ã5/16 It says simplify the expression, could someone please show me how to do that?
20. ### math help plz

In a set of data, the 25th percentile is 108 and the interquatile range is 32. expalin how you would find the upper quartile score. please help i don't help any idea about it....:(

hi, i am haveing prob;ems with my math its called solving the quadratic equation but my teacher is not really giving me the attention i need to pass the class but will you help me please
22. ### Gr. 10 math again!

Factor by Grouping.Thanks Bob. PLEASE SHOW ME THE STEPS! 1.) 6x2-21xy+8xz-28yz just to make it clear,the 2 infront of -21 is actualli an Exponent 2. 2.) x2+5x+7x+35

Factor by Grouping. PLEASE SHOW ME THE STEPS! 1.) 6x2-21xy+8xz-28yz just to make it clear,the 2 infront of -21 is actualli an Exponent 2. 2.) x2+5x+7x+35
24. ### algebra

I NEED HELP WITH ALL MY MATH AND I HAVE TO GET IT FINISHED BEFORE JUNE THE 18th AND I DON'T KNOW HOW TO DO IT CAN YOU HELP ME PLEASE OTHER PEOPLE TELL ME TO BUY A CACULATOR AND IF I HAD THE MONEY I WOULD SO CAN YOU HELP ME?
25. ### Math

I have tried to figure out this problem and I just don't seem to understand. Could someone please help? I need to write a solution in interval notation for x<5 and x is greater than or equal to -2. Thanks.
26. ### math

this question concernc the function f(x)=2x^3+15x^2+24x-21. Using the Second Derivative Test ,cassify the right-hand stationary point . please need your help thanks for reading
27. ### Math

can please someone help me to solve this question: 18 MB of data are to be transmitted over a 4 megabits per second connection. How long should the complete transmission take, to the nearest 0.1 s?
28. ### Math

how many 3-digit numbers can be formed using only the digits 1 to 7, if the number 2 must be included? (Repetitions are allowed) The books says 127. Could someone please explain this? Thanks
29. ### math

there are six cubes ho can i arrange the numbers 1-9 in the boxes.their sums vertically,horizontally,and diagonally must be 15. Note:each digit should be used only once. please do help me
30. ### math

There are nine cubes how can i arrange the numbers 1-9 in the boxes.Their sums vertically,horizontally,and diagonally must be 15. Note:each digit should be used only once. please do help me
31. ### math

There are nine cubes how can i arrange the numbers 1-9 in the boxes.Their sums vertically,horizontally,and diagonally must be 15. Note:each digit should be used only once. please do help me

33. ### Math

Solving Equations with Grouping Symbols: 3(g-3)=6 Please explain how to do this Rules: Use Distributive Property Combine like terms Solve by using inverse operations
34. ### ie math

A right triangle has hypotenuse 8 and area 8. Find the perimeter? I think I have to apply Heron's formula to this question, but I don't know how to solve. Please help. Your help is very much appreciated!
35. ### math

Referring to the figure, think about first picking a card and then rolling the die. Give the probability in simplest form. P(A, 1) = ____ i am confused with this problem.. please help?
36. ### math

I have to do a crossword puzzle in geometry.One of the questions is where perpendicular line segments cross. It is five letters long with o being the second letter. Please help
37. ### Math 8R - HELP!

Simplifying Algebraic Expression Using the Distributive Property & Combining Like Terms Solve: 4 (g +7) = 64 4g + 4(4) = 64 4g + 16 = 64 I'm getting a bit confused and struggling a lot in this problem. Please help me!

can someone please check this for me. Be sure to round to the nearest hundred. 1) 6 eggs in 7 days 2) 8 batteries in 3 months 3) 122 patients in 4 weeks 4) \$8.43 for 3 pounds
39. ### Math

Could someone please help me with this problem I just do not get it. Arrange the numerals 1 to 9 (1, 2, 3, 4, 5, 6, 7, 8 and 9) in a single fraction that equals exactly 1/3 (one third)? Example that doesn't work: 7192/38456 = 0.187
40. ### math

find the verticle, horizontal, and oblique asymptotes, if any, for the given rational function: g(x)=x^4-81/3x^2-9x I feel like such a dork becaue i have no clue how to do this, can someone please help me????
41. ### math

Evaluate the following with thought the use of a calculator: Sin70.sin25 + sin65.sin20 And please people explain how you arrived in your answer Lots of love, timmy
42. ### Math

Suppose f(x) is a polynomial of degree of 5 and with leading coefficient 2009. Supposdm further that f(1) = 1, f(2) = 3, f(3) = 5, f(4) = 7, f(5) = 9. What is the value of f(6). The answer given in book is 241091. Please work the complete solution.
43. ### math

If the length of a rectangle is 4 more than 3 times the width, and the perimeter is 32 meters, what are its dimensions? Please enter your answer as two numbers without the units, separated by a comma.
44. ### Math

How do you do these questions, I have all my steps until the last one: 2x(2x)^2: 2x(4x^2)? Now do I multiply or add the big numbers? also Im having trouble on these: 1. x^2(xy)^3: x2(x^3y^3) 2. 3x^2(2x)^3: 3x^2 (8x^3) 3. -2x^2y(3xy^2)^2 4. -(3x)^2: -(9x^2)? 5. 5x(2x^2)^2 6. -...
45. ### Math help

How do you do these questions, I have all my steps done until the last one: 2x(2x)^2: 2x(4x^2)? Now do I multiply or add the big numbers? also Im having trouble on these: 1. x^2(xy)^3: x2(x^3y^3) 2. 3x^2(2x)^3: 3x^2 (8x^3) 3. -2x^2y(3xy^2)^2 4. -(3x)^2: -(9x^2)? 5. 5x(2x^2)^2 ...
46. ### Math HELP PLEASE :)

need help don't undertsand the problem i tried the point slope formula but wasn't working out Find the x and y intercept of the line that passes thorugh the given points. (-6,2) and (-3,4)
47. ### math

stamjps are sold in bookiets of 100,50, and 10.find as many different ways to buy 200 stamps as you can. record your work in the chart. could you give me some examples...please!
48. ### MATH

A carpenter has a board that is 10 feet long. He wants to make 6 table legs that are all the same length. What is the longest each leg can be? Please explain how you find a sum of this problem.
49. ### Chemistry/Math

Calculate the following and round to the allowed number of significant figures 1. (18.00 x 1.5) / 0.00625 2.4.61 X 10^3 / 5.1008 x 10^-4 My answers 1. 4320 2. 9.037 x 10^-1 Please explain what I did wrong if I'm incorrect. Thank you
50. ### Urgent math

Please help me solve this problem?!?! Find the first six terms and the sixth partial sum of the sequence whose nth term is an = 5n2 − n. a1 = a2 = a3 = a4 = a5 = a6 = S6 =
51. ### math

Write the prime factorization using exponents of each number .Then find the greatest common factor (GCF)of the numbers. 1\24.............. 36.............. 2\21.............. 56.............. Please,,help me.😞 I tried to solve the problems but don't I know.
52. ### math

Please help me Combine the Like Terms, I really need help. My teacher said to show at least one more step. Evaluate the following when a = 4 and b = -1. Question~~ 4a – 5b + 2a – b2 My answer~~ 4*(4)-5*(-1)+2*(4)-(-1)^2 = 28
53. ### Math

Write 57.6% as a fraction in simplest form. A. 576/100 B. 72/125******** C. 72/250 D. 6/57 Please HELP ASAP... IS IT CORRECT @Ms.Sue @Emy @Writeacher @Steve @FrozenQueen @Reed
54. ### Math

Find the volume of revolution when the region enclosed by the functions f(x)= e^x , g(x)=e^-x ,and the two lines is revolved about the x-axis Solution V=intergrate e^2x-e^-2x dx From -1to1 1/2e^+e^-2x when you sub and cal. =0 why please help me
55. ### math

James paid Tsh 10000 to buy the following items: 4.5 kg@600/=,2kg@1200/= and tomatoes 3kg by 1500/=.How much did he remain?#any one to help me please *
56. ### math

James paid Tsh 10000 to buy the following items: 4.5 kg@600/=,2kg@1200/= and tomatoes 3kg by 1500/=.How much did he remain?#any one to help me please *
57. ### Math

Hello I need to ask a question. This is all new to me as we are just learning this in school. How would I write an inequality with -197 and -110? I have never done this before. Can you please help me?
58. ### Ms. Sue! Math

Come up with a new linear function that has a slope that falls in the range -1<m<0. I don't really understand how to find this out. Can someone lead me in the right direction please?

Determine algebraically if f(x) =(7x-2) / (4). And g(x) = (4x+2) / (7) are inverse functions. Show how you know, I do not understand this type of problem i have a test on these tmrw and need some help with how to figure these out pls help.
60. ### math 1

explain what the solution to the equation f(x)=g(x) means, both graphically and algebraically. I have no idea what this question is asking but like I do know that f(x) has to do with next now rules correct? Please help im desperate

What is the LCM of two numbers that have no common factors greater than one? Give an example. I need the answer tonight please! Thanks in advance!

The empire state building in New York City is 1,250 feet tall. It has 103 floors. Rounded to the nearest whole, what is the height of each floor?
63. ### math

What is the least common multiple of 864,624 and 819. Can you please show the steps. I know that they are both divisible by 3 but can't find the next lowest prime number to divide them by?
64. ### PHYSICS HELP

Please check to see if these statements are right. Through the process of doing work, energy can move between the external world and the system as the result of forces. I believe this is true. Please verify. Yes, true.
65. ### Trigonometry Urgent!

I am writing a paper on the 8 trigonometric identites but can't find any information on them. Please does anyone know of any websites that would have things like their history, development, applications in ancient times, origins, etc. Please help. Urgent!!!!
66. ### chem

for 2Al2O3----> 4Al(s) + 3O2 the question is what is the heat change for the formation of 1 mol of aluminum oxide from its elements? Al2O3:-1676.0 O2:0.0 Can someone please explain how to complete this problem step by step please??
67. ### Computer Science

Help me please! I need help with Floating Point Notation when converting biary and regular numbers! Please. I just need some help and would appreciate it greatly. Also instant message me at TRbal10. Thank you
68. ### Pre Algebra

please explain...metaphors compare two things...example "gathering clouds" and "raging storms" ...am I comparing these to obama's oath...i need to know if i state this as imagery or a metaphor...please explain
70. ### POLYNOMIALS

I'm really sorry, i'm preparing for O levels, so i have a lot of maths questions to ask... please excuse me... Question: Find the value of k for which a-3b is a factor of a^4 - 7a^2b^2 + kb^4. Hence, factorise completely. How do i even find k??? Please help thankyou!
71. ### psy

hi, i need help on this assigments can you help me please i need to find the following definitions please help me. 1. The danger of overdiagnosis 2. The power of diagnostic labels 3. The confusion of serious mental disorders with normal problems 4.The illusion of objectivity
72. ### 12th grade A.P. Government

My teacher has selected us to be in particular groups and I am a conservative. So I need to address Education and state the issues like how a conservative would. But I have no idea about it. Can someone please help me??? Please....
73. ### Algebra

Help please-I'm doing something wrong- Solve 8x^2 + 6x + 5 = 0 I'm doing square roots and all the steps but it's not working out I come up with -0.38 + 0.5 and -0.38 - 0.5 But it's not right when I go to put it back in. Could you please show the steps-these problems really ...
74. ### Algebra-Please check-I must have done something wr

Please help-What is the equation of the ellipse with foci (0,6), (0,-6) and co-vertices (2,0),(-2,0) My answer and logic is below but it can't be correct I thought the answer would be x^2/4 + y^2/40 = 1 but that can't be because the choices are: x^2/1 + y^2/40 = 1 or x^2/1 + y...
75. ### algebra

I NEED HELP SOLVING THIS PROBLEM ,PLEASE EXPLAIN AND SHOW HOW TO SOLVE the answer ."I HAVE 63 LITERS OF HYDROGEN PEROXIDE, HOW MANY TEST TUBES CAN I FILL IF EACH CONTAINED 7/8 OF A LITER?" PLEASE SHOW ME YOUR WORK. AND THANK YOU IN ADVANCED.
76. ### Physics Someone help please!

An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same question please ...
77. ### help with chemistry please

Can someone please explain how to do this An equilibrium mixture at 225∘C contains 8.0×10−2M NH3 and 0.20M H2 for the reaction 3H2(g)+N2(g)←→2NH3(g) If the Kc at this temperature is 1.7×102, what is the equilibrium concentration of N2?
78. ### Social Studies

Has the effort of Westerners to aid the rest of the world done more good than harm? Its a opinon but i would like a answer please. Please make your answer at least 6 sentences. Thank you very much

A student throws a baseball from the ground to the top of the flag pole. If returns to the ground in 4.00s what it the height of the flagpole? Please show all work need help have a test comine up

A student throws a baseball from the ground to the top of the flag pole. If returns to the ground in 4.00s what it the height of the flagpole? Please show all work need help have a test comine up
81. ### History

one more question sorryy xD The process established by the Constitution for electing the president. A popular vote B primary election Cthe Electoral College Im thinking C but this question i don't get so can you please explain it please

How did the supreme court decision in Worcester v Georgia and the Indian Removal Act lead to the removal and resettlement of native American groups? please help me with this all i want is help getting started or a sample essay

4x^2+20x+5y+xy *you have to factor by grouping,for more information just ask me* First, take out 4x from the first two and y from the second: 4x(x+5) + y(x+5). Then combine the 4x and the y: (4x+y)(x+5). That's your answer. thanks. - can you help me with this one? *48x^2y+20xz...

There is a 60% that your math teacher will give a pop quiz tonight and, due to the fact that you have a soccer game, there is an 85% chance you will not be able to do your math homework. You decide that you will do the homework if the probability of there being a pop quiz and ...
85. ### Math

Can you please go step by step, Ill show what I did and you can correct me. The question is: a+a(x+1) My way: a+a(x+1) 2a(x+1) 2ax+2a Could someone please check over this and provide a correct answer and my error. Thanks in advance. a+a(x+1) does not equal 2a(x+1) If it was (a...

1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y = -7 9x + 2y = 38 Answer: (4,1) 3) 7r + 3s = 13 14r - 15s = -16 Answer: (1,2) 4) 2x - 7y = 42 4x - 14y = 64 Answer: No Solution ?? 5) 9x + 12y = 15 3x + 4y = 5 Answer: Identity ?? 6) 2 = 4s - 3t 2 = 12s - 9t Answer: No ...

Suppose that y′=ky, y(0)=7, and y′(0)=4. What is y as a function of t ? PLEASE EXPLAIN
89. ### As physics

please check my answers and thanks have a nice day. 2.which of the following ratios is equivalent to 5/20 A.1/4(I PICKED THIS) B.1/5 C.20/100 D.2/5 3.which of the following ratios is ((NOT)) equivalent to 4/8? A.1/2 B.2/4 C.20/45(I PICKED THIS) D.12/24 4.which of the following...