Mathematics

The solution of the following system of linear equations is the point (1,-1)y= 3x -4 y= -4x +3

Answer: True or False-3x - 4 = -4x + 3 -7x = -7 x = 1 y = -1 true-The solution of the following system of linear equations is the point (1,-1) y= 3x -4 y= -4x +3? Answer: True or False You are awar

Need help finding the derivative

Given y=f(u) and u=g(x) find (dy/dx)=f(g(x))g(x) y=u^2 ; u=4x-5 My homework was going just fine until I got to this question. Im not sure I even know what its asking. Any ideas? Heres an image of t

Find the inverse of the relation

Type ordered pairs, separated by commas Im confused can some one help and explain.-just switch the x and y so itll be {(5,4),(-1,6)}

Compute the following trig integral

(sqrt sec(x)) tan^3(x) dx Weve been using the trig identity tan^2(x) +1 = sec^2(x), but I cant seem to solve it, even after I break apart tan^3(x) to be tan(x) and tan^2(x). Help?-sec^(1/2)(x) tan^3(

Write out the first four terms of the Maclaurin series of f(x) if

f(0)=−1f(0)=−11f(0)=5f(0)=8 f(x) =+......-Using the definition of a Maclaurin series, f(x) = f(0) + f (0) x + f (0) x^2/2! + f (0) x^3/3! + ... .....= -1 + (-11)x + 5x^2/2! + 8x^3/3! + ... .....= -1

How do I do this..............

2x + y = 8 x + y = 4 The lines intersect at-These are simultaneous equations, they can be solved by addition. you need first to get rid of y or x to find the value of the other one: Ill multiply th

Helpp with year 9 maths !!!!!!! 10 points

how to i expand this >2c(3b-4)-3b(-5+2c) please can u explain step by step !! thank u in advance!! :)-2c(3b-4)-3b(-5+2c) = 2c*3b+ 2c * -4+ ( -3b *-5+ -3b * 2c)watch the signs = 6bc -8c +15b -6bc = 15b

Question on transformations (wording)

Hey, So I recently had a math test (30 / 36, but the teacher made a mistake, so it should theoretically be 31 / 36) Im still looking to pull my mark a little higher, and found one area that may be a

If y = 1 / x + 1, then what is x in terms of y? [10pts] help with prep hw please!

a) 1 / 1+y b) 1/ y-1 c) 1/y d) 1-y/y e) 1/y - y show workk please & ty :)-y(x + 1) = 1 x + 1 = 1/y x = (1- y)/y D!!!!!!!!!!

How would i find area using 4 gps coordinate

i need to find how many acres are inside 4 gps coordinates (37.59251 N, 112.50740 W), (37.59333 N, 112.50807 W), (37.59498 N, 112.50473 W), and (37.59111 N, 112.50305)-Assuming this is a flat polygon

Simplifying Radicals - 10 Pts for Explanation

http://img843.imageshack.us/img843/2748/… When I do the first row, I add 10 to 5 radical 2, so I get 15 radical 2 over 5, which simplifies to 3 radical 2. What am I doing wrong? For the second row,

What is the x-coordinate for the solution of the system of linear equations? 4x-3y=-2 3x-y=-4

a. 2 b. 14/15 c. -14/15 d. -2-4x - 3y = -2 (3x - y = -4)-3 -9x + 3y = -12 4x - 3y = -2 -5x = -14 x = 14/5 Answer B

Differentiate the folloing w.r.t.x e^x^3

y=e^x^3Put x^3=t Therefore, y=e^t and t=x^3 =>dy/dt=e^t,dt/dx=3x^2 => dy/dx=dy/dt*dt/dx=e^t*3x^2=3x^2e^x^3Ans.-Differentiate using chain rule. d(e^x^3)/dx = d(e^x^3)/d(x^3) * d(x^3)/dx = e^x^3 * 3*

Find the volume of the solid if the cross sections are squares perpendicular to the x-axis

The region is bounded by y= sin(x) and y= 0. Set up in the integral, and then compute the volume.-Im assuming that you only want the first bump of the sin(x) function, because otherwise the volume wou

Algebra word problem. I'm having a hard time getting the right answer. Please help

If I mix cashews worth $6.25 a pound with peanuts worth $2.00 a pound to get a half pound mixed nut bag worth $1.70. How much of each kind of nut is included in the mixed bag?-let x = lbs of cashews l