ericatrang
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 Erica
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Questions Asked

ericatrang:
Group Title
Draw the Lewis structure for the ionic compound that forms from Al and F.
I know that the valence for Al is 3 and F is 7, but I am having t…
 updated 6 months ago
 8 replies
 No Medals Yet
Mathematics

ericatrang:
Group Title
A 5.0*10^1 kg sample of water absorbs 388kJ of heat. If water was initially at 24.5 deg. C what is its final temp?
 updated 9 months ago
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Mathematics

ericatrang:
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Solve polynomial inequality and graph solution set on a real number line. x^37x^2x7<0
this is what I have so far,
…
 updated 9 months ago
 38 replies
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Mathematics

ericatrang:
Group Title
x^5x^3+6 how do you factor this?
 updated 9 months ago
 22 replies
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Mathematics

ericatrang:
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the dimensions of a box are 10" by 12" by 16". if the shorter sides are decreasing at the rate of .2"/min. and the longest side is increasin…
 updated one year ago
 67 replies
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Mathematics

ericatrang:
Group Title
find the max related rate
in an apple orchard there are 30 trees per acre and the average yield is 400 apples per tree. for each additional…
 updated one year ago
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Mathematics

ericatrang:
Group Title
what are the absolute maximum and minimum values and inflection points of f(x)  x^3(x2)^2, also the intervals on which the function is in…
 updated one year ago
 20 replies
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Mathematics

ericatrang:
Group Title
f(x)=ln(cos^5(3x^4)) help with chain rule :s
…
 updated 2 years ago
 6 replies
 1 Medal
Mathematics

ericatrang:
Group Title
f(x)=ln(cos^5(3x^4)) help with chain rule :s
 updated 2 years ago
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Mathematics

ericatrang:
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if y=cos(2x), determine d^80y/dx^80
 updated 2 years ago
 7 replies
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Mathematics

ericatrang:
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if y=cos(2x), determine d^806/dx^80
 updated 2 years ago
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Mathematics

ericatrang:
Group Title
use the following to complete the problems
d/dx(sin^(1)u=(1u^2)^1/2(du/dx)
d/dx(tan^(1)u=(1+u)^1(du/dx)
…
 updated 2 years ago
 4 replies
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Mathematics

ericatrang:
Group Title
I need help on part B
A)y^2=x^3 find dy/dx
which is 3x^2/2y
…
 updated 2 years ago
 2 replies
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Mathematics

ericatrang:
Group Title
if y=sin^2x+cos^2x, determine d^2y/dx^2
 updated 2 years ago
 7 replies
 1 Medal
Mathematics

ericatrang:
Group Title
evaluate limit of theta >0 of (sin 3 theta)/ theta
 updated 2 years ago
 6 replies
 1 Medal
Mathematics

ericatrang:
Group Title
Implicit Differential
I need help with part B and C please
suppose that sq. rt. of x + sq. rt. of y = 10
…
 updated 2 years ago
 13 replies
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Mathematics

ericatrang:
Group Title
suppose that sq. rt. of x + sq. rt. of y = 10
a) find dy/dx. I answered it which is y'=(y 1/2) / (x 1/2)
b) what is the slope of the tan…
 updated 2 years ago
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Mathematics

ericatrang:
Group Title
evaluate the limit of x approaching 0 of sin(5x) * cot(3x)
 updated 2 years ago
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Mathematics

ericatrang:
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find dy/dx for y=10(1+(2(6+7x^4))^(9))^(3))^(5)
 updated 2 years ago
 51 replies
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Mathematics

ericatrang:
Group Title
how does y=x^2(x^31) become 5x^42x using derivatives?
 updated 2 years ago
 4 replies
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Mathematics

ericatrang:
Group Title
suppose sq. rt. of x plus sq. rt. of y = 10
A) find dy/dx
B) what is the slope of the tangent to this curve which passes through (36,16)?…
 updated 2 years ago
 1 reply
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Mathematics

ericatrang:
Group Title
if y=1/sin^(2), determine dy/dx
 updated 2 years ago
 18 replies
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Mathematics

ericatrang:
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if y=cos(2x), determine d^80y/dx^80
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

ericatrang:
Group Title
if y=cos^2(4x), determine dy/dx
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

ericatrang:
Group Title
if y=cos(2x), determine d^80y/dx^80
 updated 2 years ago
 No Medals Yet
Mathematics

ericatrang:
Group Title
if y=sin^(2)*x+cos^(2)*x, determine d^2y/dx^2
 updated 2 years ago
 3 replies
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Mathematics

ericatrang:
Group Title
if y^2=sin(x), determine dy/dx
 updated 2 years ago
 3 replies
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Mathematics

ericatrang:
Group Title
evaluate lim of x approaching infinity of 2xsin(1/x)
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

ericatrang:
Group Title
evaluate lim of x approaching infinity of 2xsin(1/x)
 updated 2 years ago
 1 reply
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Mathematics

ericatrang:
Group Title
evaluate the limit of theta approaches zero of sin 3theta/ theta
 updated 2 years ago
 1 reply
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Mathematics
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