DanielHendrycks
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 Daniel Hendrycks
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Questions Asked

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

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

DanielHendrycks:
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:
Can degenerate triangles be scalene? Are attributes like "scalene" reserved only for the nondegenerate?
 updated one year ago
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Mathematics

DanielHendrycks:
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 one year ago
 16 replies
 1 Medal
Mathematics

DanielHendrycks:
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 one year ago
 No Medals Yet
Mathematics

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

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

DanielHendrycks:
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 one year ago
 16 replies
 1 Medal
Mathematics

DanielHendrycks:
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 one year ago
 17 replies
 1 Medal
Mathematics

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

DanielHendrycks:
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 one year ago
 1 reply
 2 Medals
Mathematics

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

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

DanielHendrycks:
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 one year ago
 5 replies
 1 Medal
Mathematics

DanielHendrycks:
Why did they set d_1 = d_2. (See attached picture.)
 updated one year ago
 4 replies
 1 Medal
Mathematics

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

DanielHendrycks:
Find the square root of 25i.
 updated one year ago
 34 replies
 1 Medal
Mathematics

DanielHendrycks:
"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 one year ago
 13 replies
 2 Medals
Mathematics

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

DanielHendrycks:
3y+7 = 2y1 for all real y
 updated one year ago
 12 replies
 1 Medal
Mathematics

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

DanielHendrycks:
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 one year ago
 2 replies
 No Medals Yet
Mathematics

DanielHendrycks:
Find sqrt(27+36i).
 updated one year ago
 5 replies
 3 Medals
Mathematics
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