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Sarah has helped students
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Activity
Summary of contribution activity by day
Longest streak: 1 day
Sarah
Sarah joined Socratic 7 months ago. Sarah hasn't written a biography yet.
241 karma
Activity
1 Answer
66 Asked
@sarah-107
Sarah
asked the question
If #f(x)=(x+3)(x-1)^2#, how do you find the local maxima and minima at #x# using the second derivative?
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1 month ago
·
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@sarah-107
Sarah
said thanks for an answer to
Consider the function f(x)=x^3-3x^2+2x-3 on the interval [0,2]. By Rolle's theorem, there exists a c such that f'(c)=0. Find the values of c that satisfy the conclusion of Rolle's theorem. c1=? and c2=? with c1<c2.
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1 month ago
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@sarah-107
Sarah
commented
Thanks for your help, but I'm a little confused as to what you did to get from f'(x)=3x^2-6x+2 to an answer for x. I assume you just did the quadratic formula?
on
Consider the function f(x)=x^3-3x^2+2x-3 on the interval [0,2]. By Rolle's theorem, there exists a c such that f'(c)=0. Find the values of c that satisfy the conclusion of Rolle's theorem. c1=? and c2=? with c1<c2.
1 month ago
·
Like
@sarah-107
Sarah
asked the question
Consider the function 1-7x^2 on the interval [-2, 7]. How do I find the average slope on this interval? Find the one point in which f'(c) is equal to the mean slope.
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1 month ago
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@sarah-107
Sarah
asked the question
Suppose that x^3-6x+1 has the critical values 0 and 4. On what interval is the function decreasing? Find the x coordinate of the local minima.
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1 month ago
·
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@sarah-107
Sarah
asked the question
Consider the function f(x)=x^3-3x^2+2x-3 on the interval [0,2]. By Rolle's theorem, there exists a c such that f'(c)=0. Find the values of c that satisfy the conclusion of Rolle's theorem. c1=? and c2=? with c1<c2.
.
1 month ago
·
Like
@sarah-107
Sarah
asked the question
How do I find the critical points of the function f(x)=2x^3+6x?
.
1 month ago
·
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@sarah-107
Sarah
asked the question
Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). A list of ionization constants can be found here?
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1 month ago
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@sarah-107
Sarah
asked the question
A 1.45 L buffer solution is 0.193 M butanoic acid + 0.340 M sodium butanoate. Calculate the pH of the solution following the addition of 0.079 moles of NaOH? Assume addition of NaOH to volume of the is negligible. Butanoic acid's ka is 1.52 Ã— 10^-5.
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1 month ago
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@sarah-107
Sarah
asked the question
At noon, ship A is 50 km west of ship B. Ship A is sailing south at 45 km/h and ship B is sailing north at 25 km/h. How fast is the distance between the ships changing at 4:00pm?
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2 months ago
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