Algebra, help + check please
106,764 results, page 63

prealgebra
measuring your heart rate is one way to check the intensity of exercise. studies show that a person's maximum heart rate depends on his or her age. The expression 220a approximates a person's maximum heart rate in beats per minute, where a is the person's age.find the maximum... 
English
Which of the following is a good rule to follow when proofreading an essay? A. Scan the essay twice, once for organization and once for surface errors. B. Ask your best friend to critique your essay. C. Use the computer's spellcheck and grammarcheck functions to be sure you ... 
AlgebraMath matePlease help
Homework Help Forum: AlgebraPlease helpI'm confused Posted by Tom on Tuesday, September 21, 2010 at 8:09pm. This deals with quadratic functionsIf I have a graph with h = (5)and k =3 and they ask for the translation, would it be {5,3} or would the translation just be {5,3... 
Accounting
What is the journal entry for a bounced check. For exemplar, on May 10, Mr. Smith pays his $1000 bill the a certain company, cash receipt #1. On May 12 the check is returned marked Not Sufficient Funds. Would the journal entry look like this. debit credit Accounts Receivable $... 
i need help..algebra/math
solve by using the quadratic formula: x2 plus x minus 2 equal 0 I know the formula is a=1 b=1 c=2 I'm having trouble solving...please help. 
ALGEBRA
__5__ _4m___ m+1 = m What does "m" equal, I can't figure it out, please help me. Here's the question in writing in case it isn't clear: 5 over m+1 = 4m over m Thank you so much. 
intermediate algebra
Write the equation of the line containing (3,4) and perpendicular to y = 2/3x + 2. Write your answer in slopeintercept form. Not sure how to do this one. please help. 
intermediate algebra
Write the equation of the line containing (3,4) and perpendicular to y = 2/3x + 2. Write your answer in slopeintercept form. Not sure how to do this one. please help. 
intermediate algebra
Write the equation of the line containing (3,4) and perpendicular to y = 2/3x + 2. Write your answer in slopeintercept form. Not sure how to do this one. please help. 
Algebra
How do I solve for elimination method on this problem: 0.3x  0.2y=4 and 0.3x + 0.3y= 5/19. I know that multiply by 10 on both equations and get 3x2y=40 and 3x+3y=50/19. and then I have to multiply 3x3y=40 by 3 and 3x+3y= 50/19 by 3 to get 9x9y=120 and 9x9y=150/19. But ... 
Algebra
I did this problem, but would like to compare answers please if someone can help. Thanks! Find the equation of the line parallel to the line 3x + y = 5 and containing the point (4, – 2). 
algebra
2x^22x1=0 How do I use the quadratic formula to solve this because I am totally new at this and need help? Please show me the steps for this equation,so I will be able to do it own my own. Thank you. 
Algebra
How can you tell whether a polynomial is written in factor form. Construct a trinomial whose greatest common factor is 2x^2. Am not understanding this...Please help. 
algebra
The length of a certain rectangle is 4 m greater than five times it's width. What are the dimensions of the rectangle if its perimeter is 20m??? please help i have no idea how to do this! 
Algebra 1 (HELP PLEASE!!)
Vicky uses 1 2/3 cup milk for a muffin recipe. If she wants to make 3 times the amount of muffins, how much milk will she use? 
Algebra
I need to use Pascal's Triangle to expand (x1)^5 I know I use the fifth row but I'm not sure how to do it I have a bunch of these and I'm really confused Please help if you can 
algebra
Could someone please help me with this? Is it possible to subtract two polynomials, each of degree 3, and have the difference be a polynomial of degree 2? If so, give an example. If not, explain why not. thanks 
algebra
need helo solving this Equate y=4 to y=mx+b. What is the value for m so that these equations are equivalent I need a fast response on how to solve this problem can someone help please? 
algebra 2
given the zeros,write a polynomial equation in factored form.zeros: 45,99,127,358 show all the step please. 
college algebra, Please help!!
find the line with the given properties. Parellel to the line 7xy= 7; containing rhe point (0,0) plz show work 
College Algebra
I have t = ln(2)/.04 and the book has the answer as 25ln(2) I know these are the same but please show me the steps to go from ln(20)/.04 to 25ln(2) What rules etc. make it so I can do that so I can do it on later problems Thank you 
algebra
Need help with this one write an explicit formula for the sequence 1/2,3//7,1/3,5/19,3/14 then find q14 I don't know how to set this up can someone please show me how this one works 
college algebra
I need help bad. Don't know which formula to use. Please explain step by step. 2x^212x+19. Find the interval where f is increasing and decreasing. 
algebra 2nd try
I need to simplify this 2/∛49 . I figured it out to be (2∛((49)^2))/49 but the system I added my answer to says this is incorrect. Please help me! Thanks anyone. 
Algebra please
I have two left I need help with and don't understand. Find the partial sum S6 1. An=3n+2 2. Find the number of terms n in an arithmetic sequence if a1=20, d=5, and An=75. 
Algebra
Please help with this factoring problem: 2x^3/2 − 6x^1/2 + 4x^−1/2 what i did first was make all the exponents whole numbers, so I got: 4x^336x+16x^1 I don't know what to do from there. 
ALGEBRA REGENTS HELP!!!!!
On my TI83 plus graphing calculator it says "ERR: WINDOW RANGE" When I type in the equation and click graph that what it says. Please help!!!! 
CALCULUS
Find a formula for the inverse of the function. y=x^2x, x>=(greater than or equal to) 1/2 Please give me a step by step explanation. I think my algebra is wrong... Ty 
Algebra
This is giving me a lot of trouble. Factoring Differences of Squares Factor Completely 988w^2 and can you explain how you got the common factor if there is one please 
Pre Algebra
Please help I need to write a rule for each function. I have watched all the video's but this chart does not seem to have a pattern x y 4 4 0 6 2 7 4 8 
Math algebra Help please
A right triangle has an area of 24 ft^2 the dimensions of the triangle are increased by a scale factor of 6 A.48ft^2 B.72ft^2 C.144ft^2 D.864ft^2 
Algebra (1)
Hello! I'm currently stuck on a ratio problem and do not understand how to work it. The question is: y+2 over y+7 = ll over 31. Please explain the answer and how to find it. 
PLEASE HELP ASAP ALGEBRA
A spinner is divided into 10 equal sections numbered from 0 to 10. you spin the spinner once. what is P ( divisible by 3)? a. 1/3 b. 1/2 c. 2/5 d. 3/10 my answer is d, is that correct? 
Functions
Please I need help with this algebra problem With the 3 equations f1(x)=0 f2(x)=1/8(x+16)^298 f3(x)=2x+24 Determine an equation for this function with the 3 pieces above.(Refer to creating the polynomial functions) 
Functions
Please I need help with this algebra problem With the 3 equations f1(x)=0 f2(x)=1/8(x+16)^298 f3(x)=2x+24 Determine an equation for this function with the 3 pieces above.(Refer to creating the polynomial functions) 
Algebra
please solve x+5y=10 2x10y=20 Since the second equation can be obtained from the first (by multiplying both sides by 2), they are not independent and there is no unique solution. There are an infinite number of x,y combinations that are solutions. 
Algebra
Someone please help me I have g(x)=7/55x It says to find the domain I am unsure how to write it out as it is all real numbers I wrote it like this is it correct? {xx>4/5} The > sign has a underline under it***** 
algebra
in my workbook it says give the opposite of each expression and the problems are: 10t+21 x+2z there are alot more but i thought if someone explained a couple of these to me maybe id understand the rest. idk just please help me!!! 
algebra ll
students are given a list of 10 vocbulary words to learn. in how many ways could four of the wwords be listed on the test? if wrong give correct answers please my answer is 3780. 
algebra ll
students are given a list of 10 vocbulary words to learn. in how many ways could four of the wwords be listed on the test? if wrong give correct answers please my answer is 3780. 
Algebra
Juan charges $3.50 per hour for babysitting. Write a rule to describe the amount of money (M) earned is a function of the number of hours (h) spent babysitting. HELP PLEASE 
algebra
Find the mean for each set of data. Round to the nearest tenth if necessary 12, 20, 8, 15, 16, 14, 7, 5, 11, 8, 14 i realy need help on this i keep on getting 12 as the median but the answer choices don't have 12, could u guys help me please 
intermediate algebra
rewrite with positive exponents. assume that even roots are of nonnegative quantities and thst all denominators are nonzero. 1 )3  xy^3 )3 everything times the negative power of 3 help please 
Algebra
I need help solving this set of equations by substitution. xy=2 3x − y + 5 = 0 I originally used (3x+5=y) and came up with (x=.333 and x=2) but when I substitute it into the original equation I get (y=2 and y=1) and it is wrong according to my homework. Please help me! 
algebra
Please Help, The last question has to be done by midnight. A chevy Bel Air, a classic car today, cost $2,400.0 new in mid1963. How much would that be in 2012 dollar. 
business math
How do you know which rule to use when it doesn't specify? All it says is find the derivative of the function. I haven't had algebra/calculus in over 20 years, I'm completely lost. Please help. 
Algebra 1
A ball is thrown from the top of a 50ft building with an upward velocity of 24 ft/s. When will it reach its maximum height? How far above the ground will it be? Use the equation h(t)= 16t2 + 24t + 50 Please help me with this problem, thanks. 
Algebra 1
Solve by completing the square: A rectangular patio has a length of (x + 6) m, a width of (x + 8) m, and a total area of 400 m2. Find the dimensions to the nearest tenth. Please help me with this math problem. Thanks so much. 
francais
Please can you check my work so far. we have to fill in the gaps. my answers are in '..'. i have no idea what is supposed to go in the gaps my teacher says some answers would be better than others please could you help. Je ne mange jamais 'le porc' parce que c'est défendu aux... 
Law and Ethics in Med
please check my answer thanks :) Dr Bob is sued for malpractice. when called to give testimony at trial. he will .... 1. be barred from revealing medical information about the patient. 2. be allowed to testify about the pt's care 3. allowed to testify, but not about the pt's ... 
geometryPLEASE CHECK AND HELP DUE TODAY
1. Refer to the following line m: b. Name two rays on m that have endpoint B. d. Find a simpler name for the intersection of rays BA and AC the line m has points a b and c going on across like that on the line would the answer be ba and bc? what would the answer to d be? 
Chemistry G.12
Check if im right please: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) At a specific time in the reaction, ammonia is disappearing at rate of 0.068 mol/(L • s). What is the corresponding rate of production of water? I did Rate of Production H20 = 1/6(0.068) = 0.0113 mol/(L*s) ... 
Calculus, check my answer, please! 1
Did I get this practice question right? 1. Consider the following functions: f(x)=cos(x^3x) h(x)=x3^3 g(x)=1n(x+3) s(x)=sin^3(x) Which of the following is true? (Points : 1) f is even, h and s are odd. ***f and g are even, s is odd. h and s are odd, g is even. s is odd, ... 
Math: Please check
Which radical expression is in simplified form? A.) 11y/3 square root *B.) square root of 6/5y C.) square root of 17/square root of 4 D.) square root of 25/81 Thank You 
Algebra 1
Can you please check my work and help me with the parts that I don't understand? For each event, choose the most appropriate term and solve the problem. 1. In a sweepstakes with nine hundred entries, the first winner selected receives the grand prize, the second receives first... 
maths permutation & combination  answer pls check
Your password for a given website is made up of three letters followed by four numbers. Find the number of possible passwords if there are no restrictions on what three letters and what four numbers can be used. Pls check if my answer is correct 26C3*10C4 =26!/(263)!3! . 10... 
Geometry :(
this maths problem is wrecking my head.... 1.find the points of interesction of the line L and the circle k in the following L:x2y=0 K:X Squared + y squared=25 I would solve both equations for y, and then you'll have a system with two equations and two variables: y = x/2 y... 
geography
1. What country possesses Easter Island off the coast of South America? Chile 2. What is the westernmost state in the United States? Alaska 3. What forms the natural boundary between Argentina and Uruguay? The Uruguay River 4. What is the name of the country located in the ... 
SciencePLEASE CHECK!
Which of the following explains how natural selection leads to evolution? A. Conditions in the environment reduce competition for resources within a species. B. Helpful variations accumulate among surviving members of the species. C. Overproduction provides food for stronger ... 
Science
Hello! Can someone please check my answers? Which step in the rock cycle occurs immediately before sediments are laid down? erosion breaks down rock*** lava cools heat and pressure are applied layers form From what material does an extrusive rock come from? lava*** mineral ... 
English
Could you check these sentences, please? Thank you. 1)The protagonist soon sees a light coming from the bottom of the wall that make(s) the figures seem spectral and unbearable, like demons looking at him from different directions. 2) He devoted his entire life to the seach ... 
English
1. I am good at mimicking others. I want to mimick President No Muhyeon for the elderly people. 2. I am good at walking on my hands. I want to walk on my hands to surprise the elderly people. 3. I am good at doing hard work. I want to carry heavy things for the club members ... 
social studies
Please check: 1812 United States declares war against Britain The warship Constitution defeats the British ship Guerriere 1813 Battle of Lake Erie Battle of THames 1814 British burned Washington, D.C Battle of New Orleans 1815 Francis Scott Key writes "The Defense of Fort ... 
social studies
what are two major freight lines in Georgia today? 1.Atlantic coast line 2.CSX 3.seaboard airline railroad 4.norfolk southern Why are Georgia Ports important? 1.they make the highways less crowded 2.they encourage trade by rivers 3.cargo shipping continues to expand 4.they ... 
Math(CHECK ANSWERS)
PLEASE CHECK MY MATH ANSWERS PLEASE AND LABEL THEM LIKE 1.WRONG AND STUFF THANKS ! 1.There are 5 red crayons, 6 yellow crayons, and 11 blue crayons in a shoebox. What is the ratio of the total number of crayons to the number of yellow crayons? A.6:22 B.6:16 C.22:6(I PICK THIS... 
PLease check math
1)FInd an equation of the line containting the given pair of points. (8,0) and (0,5) MY ANSWEAR: (5/8)X+5 2)Find an equation of the line having the given slope and containing the given point. m=6 (8,1) MY ANSWEAR: 6X47 
English
1. He made me go there. 2. I was made to go there by him. 3. I was forced to go there by him. 4. He had me go there. 5. I was had to to there by him. 6. I was asked to go there by him. 7. He let me go there. 8. I was let to go there by him. 9. I was allowed to go there by him... 
Math
Craig scored 12 points in a game. Marla scored twice as many points as Craig but 5 fewer points than Nelson scored. How many points did Nelson score? a. 2x12+5 b. 2 x 12 5 c. 1/2 x 12 + 5 d. 2 x (12 + 5) Answerb Can you please check on the above. 
Math
The planet Mercury is approximately 6 x 10^7 miles from the Sun. The distance between the Sun and Mars is approximately 2 x 10^8 miles. ABOUT how many times farther from the Sun is Mars than Mercury? 2 3 20 30 I got B? Can you please check? Thank you!! 
Social Studies (URGENT)
During the immigrant experience in the early 1800s U.S. is said to be a "melting pot", and Canada a "mosaic". a.) What do these two terms mean to you? Melting pot describes the blending of cultures into a single nation. Cultural mosaic describes the mix of cultures coexisting ... 
science
Will you please check my answers? Substances or mixtures? 1. Carbon Dioxide = M 2.salt water =M 3. table salt = M Homogeneous or Heterogeneous Matter 1. flat soda pop = Heterogeneous 2. aluminum foil = Homogeneous 3. black coffee = Homogeneous 4. beach sand = heterogeneous 5... 
English
1. You can check prices for bicycles on the Internet. 2. You can check prices about bicycles on the Internet. (What is the meaning of 'for' in Sentence 1? Does 'for' mean 'about'? Are both sentences the same in meaning? Can we substitute 'about' for 'for'?) 
Economics
Considering supply and demand, what happens to each of the following things when the U.S. is under the recssion? a.) Full employment product output: b.) Price level for goods: It goes down until a certain price level at which consumers realize goods are cheap and start buying ... 
Programming Concepts
Can someone please explain to me how I can get the solution for this question. Use the topdown modular approach and pseudocode to design a suitable program to help you solve this problem. Whenever appropriate,validate the input data. Find the sum of the squares of the ... 
Physics(check my answer please!!)
Hello, could you guys let me know if this looks right? Thanks in advance. A ball is fired at a speed of 8 m/s at 20 degrees above the horizontal from the top of a 5m high wall. a) what is the total velocity at the maximum height? b) how far from the launcher will the ball hit ... 
Math, Please check answers
I do not want to fail this, could you please help me with number 1 and 3.D, and then check my other answers? Thank you. 1. Find and simplify the volumetosurfacearea ratio for each of the three possible ice cube shapes. You can use this chart. Shape S/A FormulaVolume ... 
Chemistry: Please check my answer
ClO2 is sometimes used as a chlorinating agent for water treatment. Cl2 + 4 NaClO > 4 NaCl + 2 ClO2 In an experiment, 1L Cl2 measured at 10C and 4.66atm is dissolved in .75L of 2.00M NaClO. If 25.9g of pure ClO2 is obtained, then what is the percent yeild for this ... 
English 8R  Homework Check  Part 2
Here's the second one: Please check to see if there any grammar errors and if it's good. BTW  If you NEVER heard of the movie Google it and read about it on Wikipedia. Urban Unit 2012  Stand and Deliver Response Would you be willing to give up your mornings, afternoons, ... 
socials
can u please explain the methaphor "slow dawns are caught in great wooden bowls" please explain with detail please please need fast 
English
I left out a few more things and a short translation. Can you please check them, too? 1) Four of your students have sent email so far. Can you please send me the individual email addresses of your partecipating students so that we can start the email partnership? My students ... 
Algebra
Can you please help me with these Algebra word problems? Complete the following word problems. 1. Tell whether the table represents inverse variation. If so, write the inverse variation equation and solve for y when x = 4. Show work that supports your conclusions. Table: ... 
Math
I am trying to help my son in Algebra, the only thing is that I have forgot some of these thing.He has a word problem I can not figure it out please help a mother help her 9th grader. Q The polygons below are similar. Find the unknown side lengths if c=24. Each measure is in ... 
physics
A 10.8 kg block of metal is suspended from a scale and immersed in water, as in the figure below. The dimensions of the block are 12.0 cm 10.4 cm 10.4 cm. The 12.0 cm dimension is vertical, and the top of the block is 5.00 cm below the surface of the water. (a) What are the ... 
Math(Please check)
What is the difference between the actual increase in profit as production increases from 5 to 6 units, and the marginal profit at a production level of 5 units where the profit function is given by p(x)= 3x^2  5x + 2 First I plugged 5 into the equation and got 52. Then I ... 
AlgebraPlease helpI'm desperate to understand
Posted by Megan on Tuesday, October 12, 2010 at 3:44pm. I have a question if someone could help, please explain it. Given b = 1 and h = 1, what is the equation of the graph if the parent function of the radical is y = square root (x) The x should be under a square root sign... 
Physics
Please check my answers: Why does a brick weigh 1 kilogram. Explain. Is it because the matter in the brick is the gravitational pull between the brick and the earth? When one water drop falls from a facet, and then a few minutes later another drop. How will the drop come out... 
English
1. This is a superlative sentence. e.g. Mr. Pitt is the heaviest of the three. 2. This is a comparative sentence. e.g. Emily is taller than Bob. 3. This sentence is in the past tense, so you should use the past form of 'go'. e.g. He (went) to the movies yeaterday. What is the ... 
Calc.
Evaluate the indefinite integral. Please check my work? Not sure if I am doing this correctly. S= integral symbol S x^3*sqrt(x^2 + 1) dx u = x^2+1 x^2= u  1 du = 2xdx du/2 = xdx 1/2 S x^2 * x sqrt (x^2 + 1) du 1/2 S (u  1) * sqrt (u) du multiply square root of u and (u  1) ... 
English
Thank you. Where should I include commas? Can you check if I set them correctly, please? Explain to a friend of yours, who has never flown, what he/she should do before boarding a plane. 2) Talk about the place where you live using the following grid: . – What is your town ... 
Science
Please check my answers. 1) Fossils are the ______. a. oldest layers of rock in a region b. remains or traces of prehistoric life. (my answer) c. objects that people of long ago left behind as artifacts. 2) In what type of rocks are most fossils found? a. sedimentary rocks (my... 
Math(Please check)
Lsit the intercepts and test for symmetry. y^2  x  4 = 0 I got (4,0) and (0,2) for the intercepts. y^2  x  4 = 0 Is not symmetrical to the x axis, correct? y^2(x)  4 = 0 Is not symmetrical to the y axis, correct? y^2 + x  4 = 0 Is not symmetrical to the origin, ... 
Math(Please check! Thank You)
List the intercepts and test for symmetry. y^2  x  4 = 0 I got (4,0) and (0,2) for the intercepts. y^2  x  4 = 0 Is not symmetrical to the x axis, correct? y^2(x)  4 = 0 Is not symmetrical to the y axis, correct? y^2 + x  4 = 0 Is not symmetrical to the origin, ... 
CHECK ANSWERS AND HELP PLEASE
if P(A)=.60, P(A/B)=.50, AND P(B)= .40, answer the following. 1) events A and B are independent =FALSE true or false or cannot determine 2) events A and B are disjoint =TRUE true or false or cannot determine 3) find P(A and B) =?????? 
Math
Solve the system by addition or substitution. 3x – 4y = 8 6x – 2y = 10 Please get me on the correct track for 3x 4y =8 x=4, y=1 for 6x  2y =10 x= 2, y= 1 Solve one equation for x. 3x = 4y + 8 x = (4y + 8)/3 Insert that value for x in the other equation and solve for y. ... 
Kate
Jay, Kay, Ray found themselves far apart for lunch while working in a field. Jay could see Kay, then turned 75 degrees and see Ray. Kay could see Ray, then turn 51 degrees and see Jay. Ray could see jay, then turn 54 degrees and see Kay. Which two were the furthest apart? A) ... 
US History
PLEASE CHECK! && IF YOU HAVE ANY MORE INFO! What role did television play in the election of 1960? How does television effect elections today? My Answer>> In the election of 1960, the debates between the candidates was presented on the television. The television makes ... 
math (please check answer)
Which of the following types of information is NOT suited for display on a scatter plot? 1. relationship between age and number of books read in a year*** 2. relationship between height and shoe size 3. relationship between calories consumed and body weight 4. relationship ... 
English
{At a restaursant} For hear or to go? Is this for here or to go? It's for here, please. It is to go, please. (Are the expressions above all grammatical? What is the meaning of 'is to' in 'It is to go, please.'? Does it mean 'must'? That is, "It (the food) must go, please." Am ... 
algebra addistion
can you check my answers 13  9 i got 4 15  3 i got 12 12 + 3 i got : 15 31 + 12 i got: 43 +9 + (+7) i got: 16 21 18 + 21 i got : 39 5 +(13) i got: 7 18 + (3) i got: 21 2 + (+17) i got: 15 15 + (9) i got: 6 5 + 21 i got 26 10 + 3 i got: 7 
Math, please check work
A bag contains 7 red marbles, 2 blue marbles, and 1 green marble. If a marble is selected at random, what is the probability of choosing a marble that is not blue? 7+2+1=10 There are two blue marbles So is the probability 1/5?