Algebra Help, only 4 questions:)?
1.... .it looks like it may be impossible... seeing that -2 + 2 = 0 so it'd be y over 0 = 8, which anything divided by zero would not work. 2..... x - 5 over 3 = 6, you would be trying to find out what minus 5 divided by 3 = 6. to find this out, you would want to get the 3 on the bottom to the other side, so you would multiply both sides by 3. this would take the 3 out from the fraction and then multiply the 6 by 3 which is 18. you would then have x - 5 = 18. you would then move the 5 to the other side, which you would have to add 5 to both sides. this would make it x = 23 as your final answer 3. looks like the person above me has told you how to do it. 4. can't remember for the life of me how to figure that one out lol.
Algebra help? Only 4 questions? plz?
Question 1 (Multiple Choice Worth 2 points) Simplify the following expression. a + 2c - 5b - c + a - b 2a - 6b + 2c 2a - 6b + c a - 6b + c a - 5b + 2c Question 2 (Multiple Choice Worth 2 points) Evaluate the following expression using the given values. Find x - 3y if x = 3 and y = -2. -9 -3 3 9 Question 3 (Multiple Choice Worth 2 points) Choose the best definition for the following phrase: like terms A letter that holds the place for some unknown value in mathematics. A process where you must look for terms that have identical variable parts and then combine their coefficients. A process where if two things are equal, one can be put in the place of the other and nothing will change. Terms that have identical variable parts. Question 4 (Essay Worth 4 points) Part 1: Write an expression for the following real-world situation. If Mr. Jackson earns $1000 for every used car he sells and $2000 for every new car he sells, how much would he make if he sold "u" used cars and "n" new cars? Part 2: Write a real-world situation of your own and a VARIABLE expression to go with it.
Algebra help(Only 4 questions)?
1.Find the value of the expression when X=2 X+8/2x+5 2.Find the value of the expression when X=-5 X/x^2-5 3. Find any real numbers in which the rational expression is undefined 5x+1/x-3 4.Find any real numbers in which the rational expression is undefined 9^3+4x/15x+45 Tankyou!
Math help? algebra 1, 4 questions?
All you need to do is plug in the given x, y values into the equations you're given. Remember that the first and second values in a pair represent x and then y, respectively. I will help you with the first two to get you started. 1. 2y + x = 4 For this, you plug (-2) in for x and (3) in for y. Then simplify. You will have 4 for your answer. In other words, this is a true statement. 2. 4x + 3y = 10 Plug 3 in for x and (-1) in for y. Simplify that side and you'll see that it is false. You'll have 9 = 10, which isn't true. This statement is a contradiction. You do the same thing for the others. There is nothing special involved here. Here is a video explaining the concept perfectly for you: https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/graphing_solutions2/v/ordered-pair-solutions-of-equations
Please Help!!! Algebra project??? ONLY 4 QUESTIONS!?
The project is about building a roller coaster... Here is the existing map of current structures. (graph attached) It is important that the roller coaster does not go through the foundation of any of these structures. Pick three points on the x–axis that the roller coaster will dive underground or resurface. (Points that have a building on them are off-limits.) 1. The rollercoaster will run from right to left, so work in that order when selecting points. 1st point: (5,0) 2nd point: (-4,0) 3rd point: (-13,0) FROM HERE BELOW IS WHERE I NEED HELP!!! 2. Using those points as zeros, construct the polynomial function, f(x), that will be the path of your rollercoaster. Show all of your work. 3. Using two of the theorems discussed in the lesson (Rational Root Theorem, Descartes' Rule of Signs, or Fundamental Theorem of Algebra) prove to the construction foreman that your function matches your graph. Use complete sentences. 4. Solve for the y–intercept for your function, f(x), and then construct a rough graph of your roller coaster. If your y–intercept is off the graph, give the coordinates of the y–intercept. 5. Two competing engineers have offered their solutions for the function. One has suggested g(x) = x^3 – 2x^2 + 4x – 8, and the other has suggested h(x) = x^3 + 5x^2 – 8x – 48. Explain to the C.E.O. of Oakville Lake Amusement Park why these other suggestions are invalid. Use complete sentences. PLEASE HELP! Even if you can only answer one part! I've been working on homework for almost 6 hours now and I'm exhausted!
Algebra 1 Help, Urgent!! (only 4 questions)?
x² - 13x + 30 as one of the solution is 3 i.e. x = 3 so (x – 3) = 0 (x – 3) is one of the factor Let other factor be a then other factor is (x – a) and (x – 3)(x – a) = x² – 13x + 30 solving x² – 3x – ax + 3a = x² – 13x + 30 comparing 3a = 30 a = 10 so other factor is (x – 10) x² – 13x + 30 = (x – 3)(x – 10) solution is 3 or 10 2x² - 9x – 5 as one of the solution is –1/2 i.e. x = – 1/2 so (x + 1/2) = 0 (2x + 1) = 0 (2x + 1) is one of the factor Let other factor be a then other factor is (x – a) and (2x + 1)(x – a) = 2x² - 9x – 5 solving 2x² + x – 2ax – a = 2x² - 9x – 5 comparing a = 5 so other factor is (x – 5) 2x² - 9x – 5 = (2x + 1)(x – 5) solution is – 1/2 or 5 x² + 4x + 1 = 0. a = 1, b = 4, c= 1 x = { -4 ± √(16 - 4 )} ÷ 2 = {– 2 ± 2√3} ÷ 2 = – 1 + 2√3 or – 1 – 2√3 = -0.26795 or -3.7321 3x² - 4x = 2 3x² - 4x – 2 = 0 a = 3, b = – 4, c = –2 x = { -4 ± √(16 + 24 )} ÷ 6 = {– 4 ± 2√10} ÷ 2 = – 2 + 2√10 or – 2 – 2√10 = 1.7208 or -0.38743 ---------------
Algebra help on questions from book?
I need help, my book only has odd answers but not all of them, can you help me with some of these please? I really need the help if your willing to give in the time. 4/x+2 = ?/(x+2)(x+1)? 4x/x+1 = ?/(x+1)(x-1)? Some students simplify 2x^2-32/x-4 as 2x-8 = 2x - 8? Choose values of x to show this is not true. Then simplify it correctly. *7 A proportion is a(n)? 3a/7 = -2/5? x+1/9 =4/3? 24/ x-6 = 72/ x +6? x/5 - x+3/3 = 1/15? x-2/2 - x-8/ 4 = 1/2? 2.4x - 1.2x = 4.8? Simplify. 10^-4? a^2b^-3? (5/3) ^-3? (a^2b^0c)^0? 3x^-2? The five step method- One half of a number is 25 more than one third of the same number. What is the number? The five step method- The sum of a number and its recriprocal is 10/3. What is the number? The five step method- In baseball, a players batting average is the ratio of hits to the number of times he or she has batted. Thus, if the player has an average of .300, it means he or she got 300 hits in 1000 at bats. In order to average of .300, how many hits would the batter have to get in 400 times at bat? An investment of $1500 paid interest of $45 during a certain period. How much interest would an investment of $2000 invested at the same rate for the same lenght of time pay?
HELP with Algebra homework only 4 questions.?
1) Solve the following system of equations: −2x + y = 1 −4x + y = −1 A- (3,1) B- (-1,3) C- (-1,-3) D- (1,3) 2) Solve the system of equations by substitution. What is the solution for x? 2x + y = 1 4x + 2y = −1 A- x=0 B- x=2 C- There is no x value as there is no solution D- x can be any value as there is an infinite number of solutions. 3) Stable High School has a total of 112 boys and girls who play sports. If the number of girls, g is 16 more than twice the number of boys, b, how many girls play sports at this high school? Which system of equations would help you solve this problem? A- b + g = 112 b = 2g + 16 B- b + g = 112 g = 2b + 16 C- b − g = 112 b = 2g − 16 D- None of the systems above would solve this problem 4) Part 1: If you were solving a system of equations and you came to a statement like 4 = 4, what do you know about the system? Part 2: Solve the following system and show all of your work. 3y − 2x = 11 y + 2x = 9
Math, Algebra, Calculus problems!! 4 Questions! Help!?
1. What is the domain and range of “1/ square root of x+10” ?? 2. If you save one penny on Jan 1, two pennies on Jan 2, three pennies on Jan 3, and continue this pattern for one year (not a leap year), what will be the value of your entire savings, in dollars, at the end of that year? Express your answer as a decimal 3. Is it possible for a system of linear equations to have exactly two solutions? 4. Let y=4t+2 be a linear function representing the distance from home for an ant t minutes after starting out from a location near its home. What does the number 4 represent in this function? A. The ant is 4 feet from its home after t minutes. B. The ant started out 4 feet from its home. C. The ant is crawling at 4 feet per minutes. D. The ant is moving 4 feet every 2 minutes. 5. Let y=4t+2 be a linear function representing the distance from home for an ant t minutes after starting out from a location near its home. What does the number 2 represent in this function? A. The ant is 2 feet from its home after t minutes. B. The ant started out 2 feet from its home. C. The ant is moving at 2 feet per minutes. D. The ant is moving 4 feet every 2 minutes.