Recent content by unf0r5ak3n

Homework Statement Calculate the empirical formula of each hydrate Homework Equations Mass of MnSO4 x XH2O... -Hydrate = 1.8g -Anhydrous salt = 1.59g -Water = .21g The Attempt at a Solution I thought you would set 1.8g MnSO4*XH2O((Molecular mass of MnSO4)/(Molecular mass of...

oh wow i didnt realize that thanks

Homework Statement Consider the curve x^2+xy+y^2=27 Homework Equations Find all points on the curve where the lines tangent to the curve are vertical The Attempt at a Solution I found dy/dy = (-2x-y)/x+2y) and I think I found the equations of lines visually to be x=6 and x=-6...

were given f'(x) as a graph I'm assuming we have to find the equation of that function then find the anti-derivative

Homework Statement Find the f(x) when given f'(x) Homework Equations the x intercepts are at (-8,0) (-2,0) (6,0) the y-intercepts is at (0,-6) and the derivative at zero appear to be at (-6,6) and (3,-10) The Attempt at a Solution I found the general equation by factoring the...

We have just begun this topic and I'm really confused about how to approach questions, is there any trick or guideline for doing so? Ex: Consider an isosceles right triangle whose hypotenuse is the x-axis and whose vertex is on the y-axis. If the hypotenuse is 2 units long, we'd have...

thats where i got lost

so the domain is all real numbers except when sin(x)<1?

Homework Statement let f(x) = sqrt(1-sin(x)) Homework Equations What is the domain of f? What is the domain of f'(x)? The Attempt at a Solution I understand that the domain of f is all real numbers not including every increment of 90 degrees, but I am not sure how to state that...

if u = 1-sin(x) then du/dx = (1/2)u

ah thank you i think I am understanding it now but I am confused about part c.

for b) i said if a and b = 1 then lim of x^2+x as x approaches 1 is 2 which would make it a continuous function because the left and right limits are equal at f(1), is that correct? I am a bit confused with left and right hand limits

the limit of abs(x-1)+2 is 2 and the limit of ax^2+bx is 5 so the limit is not continuous right?

so would the lim ƒ(x) = 5?

sorry I meant equivalent to