Mathematics

Need help in graphing. What is the slope in (-4, 3) and (1, -2)

I graphed the line. How do I find the slope?-Slope = gradient Formula for gradient:( y2-y1)/x2-x1) In the case of your coordinates: (-2-3)/(1-(-4)) = -5/5 = -1 Your graph should slope downwards fr

Basic algebra please HELP

i have some idea on adding and subtracting like terms buti got stuck on these problems i got decimals 1.) 3(3x - 4) = 4(5x - 3) 2.) 8x - 2= 5x + 18 3.) 6.4 - 7x = -2.7 i dont know how to solve t

How many years would it take an investment of $1000 to yeild $2000

if an initial investment of $P is made at an annual interest rate of 5%, compounded continuously, after t years it will be worth A=Pe^(0.05t) dollars. how many years would it take an investment of $10

Hi, Could someone solve this equation for me please

s = u*t + 1/2*a*t^2 I want to solve for t and cant figure it out.-It looks like a physics equation, in which case only the plus square root will be used. a = 1/2 A b = u c = -s Use the quadratic eq

Optimization: minimize costs of manufacture (surface area)

A cylindrical can is to be made to hold 1 L of oil. Find the dimensions that will minimize the costs ofmanufacture the can. Enter the value of r. For this problem the correct answer is 5.41926, but I

Please solve this math problem. Physics and Astronomy people can't answer

Lets say our universe started with Planck size (1.62X10^35 meters), and inflation lasted 10^-35 seconds, and during that brief time expanded by a factor of 10^50. How big is the universe at the end o

How to simplify this expression

http://i56.tinypic.com/33cm0lg.png the 5/6 and 2 are exponents Could someone please help? The answer is 1 / c^1/6but I cant figure it out Thanks so much-c(c^(5/6)) / c^2 law of exponents; multiply

Trigonometry Working

I am revising over trigonometry and I cant remember what the next line off working is in my calculator and what I write down in my jotter. * Information - Right Angled Triangle. Angle = 64. Adjacent

What is the produce of (5x^3-11)(12x^2)

well if you were adding 5x^3-11 and 12x^2 the answer would be 5x^3+12x^2-11 since you cannot combine unlike terms, correct? Well, if you were multiplying them, would it be what? please help me.-Actual

Simplifying, logs, and solving

Please show work! I need to learn how to do these type of problems by looking at the work. Simplify: { (x^(7/3) + x^(4/3)) / (x^2-2x+3)} / (1/x^3) Solve: (x+1)^3=(x-1)^3+26 Solve: x^(2/5) + 5 x^(1/

Ugh! gosh! what do i do here? how to factorise this

2mr^(2) + 1mr-If you just need to factor it, mr(2r+1) is the answer. You just take out what is common to both of these, which is mr, since they both have this. mr(2r+1) OR 2mr(r+0.5) both answers

Test the series for convergence or divergence

http://www.webassign.net/cgi-bin/symimag… lim(2n-1)/(7n+1) = ____________ n-->infinity-Since lim (2n - 1)/(7n + 1) = 2/7 ≠ 0, the series diverges by the nth Term Test.-This limit is 2/7--which should

Find the general solution of this equation

2tan^4 x - tan^2 x -15 = 0 how to find the general solution of this equation??-2tan^4 x - tan^2 x -15 = 0 let y = tan^2 x 2y^2 - y - 15 = 0 (2y + 5)(y - 3) = 0 y = -5/2 , 3 tan^2 x = -5/2 => reject(c

In a recent survey, 60% of the community favored building a police substation in their neighborhood...

Explanation, not just answer please. In a recent survey, 60% of the communityfavored building a police substation in their neighborhood. If 14 citizens are chosen, find the probability that exactly

Find the general soloution of the ODE

Im having a little trouble finding the general solution for this ordinary differential equation. (cos y)dy/dx = x + x siny In latex form it looks like this (copy the link into your browser) http://l