DanielHendrycks
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 Daniel Hendrycks
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Questions Asked

DanielHendrycks:
Group Title
Show (0,0) is a saddle point of the function 2x^3 + 6xy + 3y^2
 updated one year ago
 4 replies
 2 Medals
Mathematics

DanielHendrycks:
Group Title
Algebraically show, using a natural logarithm, that lim_(x>infintity) e^(1/x) =1.
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

DanielHendrycks:
Group Title
Decompose into partial fractions: x^3/(x+1)^3. The answer has four terms, but our normal method only allows for 3 terms. Does the normal met…
 updated one year ago
 13 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
http://en.wikipedia.org/wiki/Reflection_(mathematics)#Reflection_across_a_line_in_the_plane How would I write the vector "l" if the line is …
 updated one year ago
 No Medals Yet
Mathematics

DanielHendrycks:
Group Title
How is 0=0/x, considering x can be 0? http://www.wolframalpha.com/input/?i=0%3D0%2Fx
 updated one year ago
 17 replies
 2 Medals
Mathematics

DanielHendrycks:
Group Title
Show x^(log base x of y) = y
 updated one year ago
 7 replies
 2 Medals
Mathematics

DanielHendrycks:
Group Title
Work analysis: A teacher picks pairs of students randomly; there are 20 students. What is the probability that Alex and Ali are paired?
 updated one year ago
 5 replies
 No Medals Yet
Mathematics

DanielHendrycks:
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If less is better, by what percentage is 2000 greater than 5000?
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

DanielHendrycks:
Group Title
Prove the area of a parallelogram is 1/2 d_1 d_2 sin(theta).
 updated one year ago
 19 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
Can degenerate triangles be scalene? Are attributes like "scalene" reserved only for the nondegenerate?
 updated 2 years ago
 No Medals Yet
Mathematics

DanielHendrycks:
Group Title
A tennis ball on Mars, where the acceleration due to gravity is 0.379g and air resistance is negligible, is hit directly upward and returns …
 updated 2 years ago
 16 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
A tennis ball on Mars, where the acceleration due to gravity is 0.379g and air resistance is negligible, is hit directly upward and returns …
 updated 2 years ago
 No Medals Yet
Mathematics

DanielHendrycks:
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A car, when braking from 60.0 mph on dry pavement, stops in 146 ft. What is the acceleration?
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

DanielHendrycks:
Group Title
Is there a slick way of solving for the complex roots of this: x^52x^4+3x^25=0
 updated 2 years ago
 9 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
Why does 5 * (13 choose 5) represent: the number of ways you can choose a team of five people chosen from a room of 13 people, where you are…
 updated 2 years ago
 16 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
While driving on the freeway at 110 km h, you pass a truck whose total length you estimate at 25 m. If it takes you, in the driver’s seat, 5…
 updated 2 years ago
 17 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
Why did Robert Benchley say, "We call England 'The Mother Country' because most of us come from Poland or Italy"?
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

DanielHendrycks:
Group Title
Is there a book that covers most of the content this does and uses similar terminology? Although this course is selfcontained, I'd like a b…
 updated 2 years ago
 1 reply
 2 Medals
Mathematics

DanielHendrycks:
Group Title
Find points of intersections. x^2+y^24=0 and 3xy^2=0
 updated 2 years ago
 11 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
See this: http://i.imgur.com/VtJVa.png Construct a parabolic equation based off of this.
 updated 2 years ago
 18 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
Is there a clean way to solve this problem: "Find the equation of an ellipse with these properties: vertices: (0, + or  5); passes through …
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
Why did they set d_1 = d_2. (See attached picture.)
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
Analyze what I did incorrectly when I tried to find the angle between the two lines x+2y=8; x2y=2
 updated 2 years ago
 10 replies
 3 Medals
Mathematics

DanielHendrycks:
Group Title
Find the square root of 25i.
 updated 2 years ago
 34 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
"The average (mean) of 20 numbers is 30, and the average of 30 other numbers is 20. What is the average of all 50 numbers?" The harmonic mea…
 updated 2 years ago
 13 replies
 2 Medals
Mathematics

DanielHendrycks:
Group Title
Resources about sigma * sigma? I am having difficulty finding some resources on it.
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
3y+7 = 2y1 for all real y
 updated 2 years ago
 12 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
If f(4x+3)=2x+1, then find f(x).
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

DanielHendrycks:
Group Title
Convert 0.(31) repeating with base of 5 to a base 10 fraction. (I want to see if it can be done using the infinite geometric series formula.…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

DanielHendrycks:
Group Title
Find sqrt(27+36i).
 updated 2 years ago
 5 replies
 3 Medals
Mathematics
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