107,202 results

1. ### math graphing the y-intercept

y=2over3=1 dont know how 2 solve it 2 get the y-intercept dont know how 2 graph it please help and explain it please

3. ### math graphing the y-intercept

y=2/3=1 dont know how 2 solve it 2 get the y-intercept dont know how 2 graph it please help and explain it please
4. ### define

sunbeams(d now how 2 expalin flapjacks(d now how 2 explain accomplish(dont know how to explain planks(dont know hymns(dont know

0.4/2.4=f/6 Dont know how to solve please explain so i can know thank u
6. ### Chemistry

Bromine has two isotopes, Br- 79 and Br- 81. The relative atomic mass of bromine is 79.9. CALCULATE THE PERCENTAGE of Br-79 atoms in a sample of bromine. PLease help i'm really stuck Someone said: The total for 79 and 81 is 100% and the total for fraction is 1, so let X = ...

pls solve 4 v and explain (h^2.v"(x))/v(x))=h^2.a^2 where . denotes d multiplication sign plz help i dont know
8. ### physics as

the figure below shows the graph of force,F (y axis)acting on a trolley of 0.4kg against time,t (x axis) 20--------- ........._-- ........._...-- ........._....--- ........._......--- ........._.......----- 0........5............9 The velocity of the trolley is constant ...
9. ### geology (urgent)

i am having trouble finding how a shield volcano erupts and how a cinder cone volcano erupts. dont they all erupt the same? i gues they dont please help and thank you

11. ### algerbra

i did my question already but i was wondering if someone could double check my work. the question says to graph the following function on the grpah f(x)={|x|, -3 is equal to or less than x less than 2} {2x-8, x less than or equal to 2} i dont know if its possible to show a ...
12. ### physics?- waves

this is the information i was given, it is confusing since the teacher didnt explain it at all... - speed of light = 3x10^8 m/s - 1nm= 10^-9 m the problem i have to solve is... A laser has a wavelength of 2.5 nm. What is the frequency in Hz? (Type your response in scientific ...
13. ### algrbra

It is known that a>0 and b<0. Compare the values of the following expressions to zero: ab^2 i dont understand why i always get these wrong, i pluged in numbers that match with what it says and i solve: 1*-1^2=-1, 0 is greater than ab^2 but i got that wrong i dont ...
14. ### math

Solve the linear system graphically (Dont graph it just solve it) x+ 2y = 8 3x+ 4y = 20
15. ### Science, Example PLZ?

Using an example, explain how being able to understand scientific principles and think scientifically can help you solve problems and answer questions in your everyday life. Have Any Example? I Sure Dont Have Any... Can You Give Me An Example Or Two Since Im TOTALLY CLUELESS ...
16. ### science

Electrons that have the highest energy are _____. A. nuclear electrons B. part of the nucleus C. closest to the nucleus D. valence electrons Im not going to say an answer becuse I have no clue what it is and I dont want to get accused of guessing so do you think you could help...

solve using identities for all angles (dont use multiple angle method)show work please cuz i am so confused. 2sin2x-3sinx=0
18. ### 7TH GRADE MATH HELP!!!!!

Hey I had to divide 7 by 20 and the answer is .35 but I need to solve it without a calculator and I dont know what I'm doing please help thanks you

A scientist is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days: f(n) = 8(1.05)n Part A: When the scientist concluded his study, the height of the plant was approximately 11.26 cm. ...
20. ### math

1.What is the diameter of a sphere that has a volume of 3052.08 m^3? My answer is: 9m 2.What is the radius of a sphere that has a volume of 2304π m^3? My answer is:12m ~If i get it wrong please explain it to me how to get it, i know the formula and how to solve it with points...
21. ### math

problem is solve for the unknown 2/3 over 10 = 1.8 over r dont even know where to start to solve this please help cross-muliply 2/3 r = 18 multiply both sides by 3/2 thank you
22. ### TO DRWLS/MATH HELP PLEASE

How do i solve inequalitites with three variables. I still can't figure it outplease help. x+y=1 y-z=-3 2x+3y+z=1 THE ANSWERS ARE X=3,Y=-2,Z=1 i KNOW THE ANSWERS I JUST DON'T KNOW HOW THE BOOK GOT THE ANSWERS . i 'VE TRIED MANY DIFFERENT WAYS AND I STILL DONT' UNDERSTAND IT ...
23. ### Exponential Functions?!

solve 9^(2x-3) > 4. Round your answer to the nearest hundredth. The part in parenthesis is up at top like an exponent. I dont' know how to do this. Please help me.
24. ### Dont need to answer if you dont want to

I was wondering, Since Ms. Sue answers almost every question and comments a lot, is Ms. Sue a teacher? Does she work here?
25. ### math

i need help... i dont know hoe to explain this or how to solve it. Find the function rule: x= -2,-1,0,1,2 y= 9,4,-1,-6,-11
26. ### chemistry DONT spik

a sample of carbon dioxide gas has a mass of 52.0g. how many oxygen atoms arr present?explain please don't skip
27. ### maths

sir steve plz am a little confuse (x-y)³=A(x+y) prove that (2x+y)dy/dx=x+2y if y is a function of x and x=e^t/(e^t+1) show that dy/dt=x(1-x)dy/dx plz explain to me very well sir damon answered that but i still dont get it If u want me to show my work i will do it sir plz plz ...
28. ### algebra

use intercepts to graph the line described by each equation: -6y = -4x + 24 I was told that the x intercept is 6 the y intercept is -4 Can you please explain to me how that's the answer step by step please (baby steps) Thank you
29. ### Math

are these right? im suppose to use like terms. 5z + 2(x + 3) - z dont solve it just simplify it. please give me a step to step process?
30. ### math

find the area of a triangle i dont have a pic so ill just tell you the measurements 5.5m, 6.9m, 4.9m choices: a. 16.5m2 b.11.55m2 c.23.1m2*** d.4.85m2 is my answer correct if not please explain how to do it
31. ### math

use integer values of x from-3 to 3 to graph the equation y=2x^2=3 can you tell me the coordinates, then i can graph it, i just dont understand how to get them. thanks.
32. ### french

i don't understand whats the differnce when using relative pronouns- qui, que, dont, ce qui, ce que, ce dont
33. ### Math Help Me Please

Graph the two lines 2x + 3y = 18 3x -4y > 16. Give the Domain and Range, Slope, and Y-intercept for each line. Graph each equation above on the graph below and show all work. Give the Domain and Range, Slope, and Y-intercept for each line. Explain in detail how you got each...
34. ### math

A data set is shown below. x y 1 6.00 2 5.04 3 4.23 4 3.56 5 2.99 6 2.51 7 2.11 Using an exponential best-fit model, what is the residual when x = 1. Round your answer to the nearest hundredth. This is the problem i dont understand line of best fit i dont get at all
35. ### Math

the question is to "rotate the line the given number of degrees a about the x-intercept and (b) about the y-intercept. Write the equation of each image" and the problem is y=2x+2 ; 90 degrees and i dont know what to do
36. ### Chemistry

I dont understand this. please explain the relationship between wavelength, frequency and energy of light waves and the difference between the types of electromagnetic radiation.
37. ### Biology (Please Dont Skip Over)

h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 8 2 7 9 5 7 9
38. ### Algebra

Dont even know where to start on this one! x +3 - 1/x=0 2a-b =8 3a+2b=5 Please help!!!
39. ### MATH

Please help me!!!!!!!!!!!!!!!1 Instructions a. If needed, rewrite the following equations in slope-intercept form. * b. Indicate the slope and the y-intercept for each of the equations. c. Using graph paper and a straight edge, graph the equations. 1. y = 3x − 4 2. 2x + ...
40. ### maths

Question #1 - I dont understand the last step which is = (3a +1) √a √9a^3 + √a = √9 √a² · a + √a = 3√a² · √a + √a = 3a√a + √a = (3a +1) √a Question #2 - again I dont understand how from√9² x² + 9² to √9² (x² +1) √81x² +81 = √9² x² + ...

This is an inequality problem/question. I dont know if I'm right in solving this problem: 15 ≤-k/4-9 (k/4 is a fraction) Please help! I got 5.25 ≤k
42. ### Physics

So tomorrow I have a presentation about the universal law of gravitation and my partner did not work! At all! I'm really upset right now and I'm having trouble with understanding about the orbit of the moon. The slide has to be short and simple and I dont know what to put and ...
43. ### Help me please I dont know this quation

How to affect lattice energy,charge on the ion and radius of the ion, the solublity of the substance. please if it is possible with example
44. ### Chemistry

. What is the percent by mass of nitrogen in (NH4)2CO3? dont know how to do, please help.

46. ### physics As

The table below shows how the braking distance x for a car depends on its initial speed u u / ms-1 5.0 10 20 4 x / m 2.0 8.0 32 128 the reaction time of a driver is 0.60s. Calculate the sopping distance of the car when u= 30ms-1. The mark scheme says: Thinking distance= 30 X 0...
47. ### Math 30 Trig

How do I find the x-intercept of the graph of y=3sin 2x? Could you explain the steps to put this into my graphing calculator to get the graph. Please and thanks
48. ### Health

Ok so my friend has a eating disorder and im doing a paper on it she is obese but everytime I try to wright it she throws it away what do I do Im trying to help her and she dont like that :( anyways are there any other ideas it has to be a eating disorder But i dont know any ...
49. ### MATH

i need help of unit 2 lesson 10 i dont know how to do it or none of the answers ans somebody PLEASE

What is the formula for base, b, of a triangle if the area is A and the height is h?
51. ### As physics

the figure below shows the graph of force,F (y axis)acting on a trolley of 0.4kg against time,t (x axis) 20--------- ........._-- ........._...-- ........._....--- ........._......--- ........._.......----- 0........5............9 The velocity of the trolley is constant ...
52. ### Math/Algebra

Please help me with this, below is a question I have to answer…below that is my answer…did I do, or answer this correctly? Post a response of at least 50 words to the following: Explain how to graph linear equations using the x- and y-intercepts. Provide an example to ...
53. ### algebra

solve each equation. | x+1\2 | = 1 dont know what to do
54. ### i dont know how to solve this

What is the value of x in the equation 6 + 2/3x=9 ?
55. ### Educational Tech and Online learning

What happens when a filter is applied to a database? All records that dont meet the criteria are removed from view** all records that dont meet the criteria are permanently removed from the database. Some records are permanently removed from the database Records that meet the ...
56. ### geometry circles equation i dont know

please he lp Find the equation of a circle circumscribes a triangle determined by the line y= 0 , y= x and 2x+3y= 10 this is my first timein this website please help me need it badly my teacher will be angry at me so much
57. ### Chemistry

WHAT IS THE ION CONFIGURATION OF GALLIUM 3+ AND TIN 4+ AND WHAT ARE THE RULES (WRITTEN CLEARLY) please help i really dont know
58. ### Math-due today, need a check

Please help me with this, below is a question I have to answer…below that is my answer…did I do, or answer this correctly? Post a response of at least 50 words to the following: Explain how to graph linear equations using the x- and y-intercepts. Provide an example to ...

True or False? If the inverse function of f exists, and the graph of f has a y-intercept, the y-intercept of f is an x-intercept of f^-1
60. ### Trading Posts, dont get it.

What were the effects of having to use rivers to complete such long journeys? I don't know. Please help.
61. ### calc

determine the intersection pints of the graphs of the equations y=x^3-4x y=-x-2 I dont understand this please show all work.
62. ### Ho...Health

please dont post your tests here, we are not going to do them for you. We already took the course, and did not cheat by grazing for answers.

I would greatly appreciate it if someone would please be kind enough to take the time and show me how to work these problems. Thank you very much Solve by finding y and graph using the slope and y-intercept: 3x-y=1(My answer -y=3x+1)which is wrong could not graph it. x-y=3 (My...
64. ### i dont know how to solve this

Which number is a solution to the inequality 3x − 2 > 10? A 2 B 3 C 4 D 5
65. ### Math Explain

18x^2 + 6 + 4x - 15x^2 - 4 + 13x okay i know the answer is 3x^2 + 17x + 10 but i dont know how i got it can someone explain plz

Answer the following function. f(x)=2x^2-x-1 A. Is the point (-2,9) on the graph of f? B. If x equals 2, what is fx? What point(S) are on the graph of f? c. if f(x)= -1, what is x? what point(s) are on the graph of f? d. what is the domain of f? e. List the x-intercpts, if any...

Answer the following function. f(x)=2x^2-x-1 A. Is the point (-2,9) on the graph of f? B. If x equals 2, what is fx? What point(S) are on the graph of f? c. if f(x)= -1, what is x? what point(s) are on the graph of f? d. what is the domain of f? e. List the x-intercpts, if any...
68. ### Algebra

1.Write the equation of a line that is perpendicular to the given line and that passes through the given point. y-3=8/3(x+2); (-2, 3) A.y+3=-3/8(x-2) B.y-3=-3/8(x+2) C.y-2=-3/8(x+3) D.y+3=3/8(x-2) 2.Describe how the graph of y=/x/ and y=/x+3/ are related. A.The two graphs are ...
69. ### English

PLEASE HELP I DONT UNDERSTAND THIS!!! WHAT IS MOODY VERBS????????????? I have gone through my lesson 3 times and I still don't understand what moody verbs are. can someone explain in a simple way what it is? thx!

71. ### algebra

someone help please im homeschooled and dont understand math at all, its my weakest subject :( If y varies inversely with x and y = 6 when x = 3, then what is y when x = 2? a.) 9 b.) 12 -im guessing this? c.) 18 d.) 36
72. ### Biology

Describe the microbial loop and role of viruses simplified. I just dont understand it if anyone could please help or suggest a website?

74. ### Algebra

This will be a multiple post thing so please bear with me. If my answers are wrong then please explain I'll post my work as needed thanks. 1)Identify the y-intercept and the axis of symemetry for the graph of f(x)=-3x^2+6x+12. answer=12:x=1 2)Determine whether f(x)=-5x^2-10x+6...
75. ### math

state the slope and the y-intercept for the graph of y=-4x explain please
76. ### MATH

HELP? Exam in 20 mins -dont' have any idea how to do this question; please helpp.. anyone! PLEAZE A.S.A.P. minimize p= 15x +18y subject to x+2y<=20 3x + 2y>= 36 x>=0 y>=0
77. ### CHEMISTRY

I am confused about this statement about water Which of the following is TRUE regarding water only covalent bonds are broken when ice melts (dont think so) all of the staements (A-D) are false energy must be given off in order to break down the crystal lattice of ice to a ...
78. ### Algebra 1

Find the intercept and then use them to graph the equation 1.4x-13y=3.64. I just can't seem to find the intercept or to even solve the equation. Please help! Thank you so much.
79. ### Math - Slope intercept

Write this equation in slope intercept form. 6x-3y-2=0 and solve for Y.? My answer: Slope-intercept form: y = 2x-2/3 I don't know what is the value of y. Can you help me? Would it also be y = 2x-2/3? Please explain it
80. ### Geometry

Find the value of x. (x+y+5) (y) (2x) A. 20 B.35<---- C.70 D.110 I dont really understand how to solve this..
81. ### music,making meladieos ms.sues? i need help

1.which of the following is the longest? A. motive B. cadence C. climax D. phrase 2.what is the focal point in melody? A. the general shape B. the highest note C. the place of rest D. the beginning 3.what is a phrase? A. a place of rest in the music B. a musical idea with ...

how would you explain "dont count your chickens before they hatch?"
83. ### College Algebra

1.The graph of y = - 1/2 |x - 5| - 3 can be obtained from the graph of y = |x| by which transformations? What is the horizontal shift? By what factor is the graph stretched or shrunk vertically and how is it reflected? What is the vertical shift? 2. Find the following for the ...
84. ### As physics

The table below shows how the braking distance x for a car depends on its initial speed u u / ms-1 5.0 10 20 4 x / m 2.0 8.0 32 128 the reaction time of a driver is 0.60s. Calculate the sopping distance of the car when u= 30ms-1. The mark scheme says: Thinking distance= 30 X 0...
85. ### Chemistry

Use a diagram to help explain how LiF dissolves in water. Dont know if you guys can help me on that..
86. ### Chemistry

which substance has the greatest intermolecular forces of attraction between molecules ? 1)propanone 2)ethanol 3)water 4)ethanoic acid dont really understand, please help
87. ### CALC

can someon help me find the horzontial and verticle asymptotes for x square root 4-x^2. For HA someone told me none but I dont understand how and is the VA -2 and 2. Please help and show all work Thank you
88. ### Math

Use synthetic division to find the zeroes of the function f(x) = x^3 + x^2 +4x+4 Need help on this we have a test when i go back to school please help this was an example given and i dont understand it.
89. ### English

can anyone please summarize the short story "an ordinary soldier of the queen" because I didn't understand it at all and I am very confused ? I read it 3 times but still dont understand what happened, if anyone has read it please help:) very appreciated:)
90. ### Math

Which pair of ratios does NOT form a proportion? A. 3/5, 24/40 B. 30/10,15/5 C. 9/14, 3/4 D. 7/12, 14/24 Help please!!!!!!!!!!!!!! Dont give me the answer, just tell me how to answer it.
91. ### Calculus

For which values of x does the curve Y= (3x^3-3x^2+1) / (2x^2-1) , have a horizontal tangent? Show steps or explain, i dont get it
92. ### math

A set of data is shown below. x: –1 0 1 2 3 4 5 y: 3 7 5 6 7 8 Using a line of best fit, what is the value of the residual for the data at x = 2? Round your answer to the nearest thousandth. I dont remember line of best fit if you could please explain this problem.
93. ### Math

How do you solve 2y-5x=10 using the dual intercept method? I have to solve for X int and y int on a graph. Please help
94. ### Math

A reatil outlet is having a clearance sale on all the shoes in its inventory over a period of four days. On the first day it sells 1/4 of its inventory, on the second day it sells 1/2 of the remaining inventory , and on the third day it sells 1/6 of the remainder. What ...
95. ### Algebra

Question 1 Solve using the multiplication principle then graph. -15>-75 Question 2 Translate to an equality. Use the variable x. The number of people in the chess clubi less than or equal to 15. Question 3 Solve using the addition and multiplication principles 2.1x+20.8>...
96. ### Algebra

Pretend the parentheses are absolute value bars. What is the graph of y = (x) and its translation to the graph of y = (x + 3)+1? I know I can't post the graph picture here, but I'm confuzzled on how to solve the problem. Please explain how! Thank you so much! <3
97. ### calculus ..>steve

Given a function f(x)2/3x^3+5/2x^2-3x. a) Find i. The inflection point. ii. The y-intercept and x-intercept. b) Sketch the graph of f(x). i have already try it..but i don't understand.. which graph that is true.. the first or second ? and how to calculate the x,y intercept,and...
98. ### Algebra

Can you guys help me solve this problem I dont know why I cant get it. Thanks. Solve for x. (26000-x)2813.95 + x(314.73)=26000(640.2)