DanielHendrycks
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 Daniel Hendrycks
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Questions Answered

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
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
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

simplybeyoutiful:
Group Title
what does the square root of p^6 simplify down to?
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

Joia_Kirtani:
Group Title
can u give a mathematical proof for C(n,r) = C(n,nr)
 updated 2 years ago
 10 replies
 1 Medal
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 2 years ago
 5 replies
 No Medals Yet
Mathematics

wiizkiid23:
Group Title
Select the answer choice below that shows the following numbers in order from least to greatest: 8.21, 8.202, 8.2012, 8.212, 8.2
Answer
…
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

wiizkiid23:
Group Title
Which of the following sets contains 3.141592…? Answer
Whole Numbers
…
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

wiizkiid23:
Group Title
Which of the following sets does not contain 101? Answer
Rational Numbers
…
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

wiizkiid23:
Group Title
Which of the following is not a subset of the set of rational numbers? Answer
Whole Numbers
…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

DanielHendrycks:
Group Title
If less is better, by what percentage is 2000 greater than 5000?
 updated 2 years 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 2 years ago
 19 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
 16 replies
 1 Medal
Mathematics

zeesbrat3:
Group Title
The coordinates of the vertices of two rectangles, Rectangle A'B'C'D' and Rectangle P'Q'R'S' are given below.
Rectangle A'B'C'D' – A(0,…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

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

Lanik:
Group Title
A culture starts with 8600 bacteria. After one hour the count is 10,000.
a) Find the function that models the number of bacteria n(t) aft…
 updated 2 years ago
 21 replies
 No Medals Yet
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

LindaCyleighMarie15:
Group Title
How do you find the total surface area of a cone ? !
 updated 2 years ago
 13 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
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