Mathematics

Limit to compute f '3 f(x) x^2 -2x +3

help math pleaseeeeeeeeeeeeee 10 points-f(x) = 2x - 2 f(3) = 2(3) - 2 = 6 - 2 = 4 lim(h-->0) [f(x+h) - f(x)] / h lim(h-->0) [(x+h)^2-2(x+h)+3-(x^2-2x+3)] / h lim(h-->0) [x^2+2xh+h^2-2x-2h+3-x^2+2x-3]

Volume of revolution

x= 3y^2 and x =3 rotate around x=3 now I should be able to use the shells method right? so the upper and lower limit should be 0 to 3 and and the integral is (3-x) (shells height) now what is th

Help!! Math word prob!!

A poll of 200 voters was taken. BLACKCLOUD received 50 votes LUE received 80 votes GOMEZ received 40 votes WHITNEY received 30 votes If the info was coverted into a circle graph (pie chart), then the

How to find t? 50.30 = 11.80t + 9.81t^2

i dont know who to find t! 50.30 = 11.80t + 9.81t^2-9.81t² + 11.80t - 50.30 = 0 a t² + b t + c Quadratic Formula: t = [-b ± √(b² - 4ac)]/(2a)-Put it all in a standard form. 50.30 = 11.80t + 9.81t^2

How do I convert this to slope-intercept form

Point slope form -----> to slope intercept Remember: Slope intercept is y = mx + b y - 4 = -1/2 (x + 6)-U have to get (y) by itself. But first u have to foil so u would multiply -1/2 by x and then

What does it mean to solve by subsitution and elimination

It gave these 2 problems: Solve by substitution: 4x - 3y = 5 y = -3x + 7 Solve by elimination: x - 2y = 6 3x - y = -2 What exactly does it mean by substitution and elimination? THANKS :) remem

How would I show this

Let Fp be thefield with p (prime) elements.Also let Fp_bar be its algebraic closure. Letphi : Fp_bar --> Fp_bar be defined byphi(x) = x^p, which we also know satisfiesphi(x + y) =phi(x) +phi(y): (i)

Please help me with functions of discrete structures,,,

i dont understand what does this means: If A and B are any two non empty sets, then a function f from A to B is a subset of A x B, with two important restrictions: (i) ∀a ∈ A, (a,b) ∈ f for some b ∈ B

For the piecewise function f(x) = {x + 1 if x ≥ 0 and x +2 if x < 0

Does f(0) exist? If it does, find its value. If it does not, explain why. I really am getting two different answers: graphically, the graph indicates a discontinuity while the left-hand and the righ

Can you answer one more

Find the linear function from the two points (2,1) and (3,5). Thanks for your help!-First find slope m = 5-1 / 3-2 = 4/1 = 4 Now use either point with point-slope equation. I’ll use the first point

Calculus optimization help please

A company needs to run an oil pipeline from an oil rig 25 miles out to sea to a storage tank that is 5 miles inland. The shoreline runs east-west and the tank is 8 miles east of the rig. Assume it cos

What is the average rate of change of f(x) given f(x)= -6/x from (1,2) and (1,4)

what is the instantaneous rate of change of f(x) x=1-Im going to assume (1,2) represents the interval from (1,2), although I think perhaps it should be written as [1,2]. f(x)= -6/x f(1) = -6/1 = -6 f

Find the value of limit as x approaches 0

y =(sin3x) (cos2x) (sin2x) / (sin4x) (cos5x) (sin6x) I am not sure how to approach this question. I havent learnt the lhopitals rule, so itd be great if you could give a brief description, if its nee

The box on a right angle

What is the name of that box that shows that it is a right angle. None of my teachers no what it is called. Not even my geometry teacher.-I dont think it is called anything it just is the representati

Math problem help please

2 (3y - 1) - 4y = 2 i did it wrong-Okay well first you distribute.2 (3y - 1) - 4y = 2 6y - 2 - 4y = 2 Then you combine like terms 2y - 2 = 2 You then add 2 to both sides, the +2 canceling out the