dfyodor
 Name:

 School:
 About:
188 helpers are online right now
75% of questions are answered within 5 minutes.
Most Active Subjects

 Questions Asked
 0
 Questions Answered
 8
 Medals Received
 2

 Questions Asked
 0
 Questions Answered
 1
 Medals Received
 1

 Questions Asked
 1
 Questions Answered
 3
 Medals Received
 4

 Questions Asked
 0
 Questions Answered
 2
 Medals Received
 0

 Questions Asked
 0
 Questions Answered
 1
 Medals Received
 1

 Questions Asked
 0
 Questions Answered
 0
 Medals Received
 0

 Questions Asked
 2
 Questions Answered
 60
 Medals Received
 23

 Questions Asked
 0
 Questions Answered
 8
 Medals Received
 2

 Questions Asked
 0
 Questions Answered
 1
 Medals Received
 1

 Questions Asked
 1
 Questions Answered
 3
 Medals Received
 4

 Questions Asked
 0
 Questions Answered
 2
 Medals Received
 0

 Questions Asked
 0
 Questions Answered
 1
 Medals Received
 1

 Questions Asked
 0
 Questions Answered
 0
 Medals Received
 0

 Questions Asked
 2
 Questions Answered
 60
 Medals Received
 23
Questions Answered

schamp2010:
Which of the following represents the largest number?
A) 21 base eight
B) 18 base nine
…
 updated 10 months ago
 14 replies
 No Medals Yet
Mathematics

jennnleslie:
Find all solutions of the equation 2cos2thetasquare root 3=0
 updated 10 months ago
 1 reply
 No Medals Yet
Mathematics

Best_Mathematician:
calculus help...plz explain and answer question...i totally dont know what they are...studying on my own
 updated 11 months ago
 63 replies
 1 Medal
Mathematics

abadasstanker69:
where is IDLE downloaded from?
…
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

ILoVeMaTh3:
In which medium does sound travel the fastest?
salt water
fresh water
…
 updated 11 months ago
 4 replies
 2 Medals
Mathematics

yulyullie:
What is the difference in brightness of light bulbs of a series circuit to a parallel circuit?
 updated 11 months ago
 3 replies
 1 Medal
Mathematics

MichelCarroll:
The frame of a cart has a mass of 45 kg, and the cart rolls on four railroad car wheels, each
with a mass of 22 kg. The cart is being ridde…
 updated 11 months ago
 4 replies
 1 Medal
Mathematics

ShilpaGupte:
Hi, I just came across the MIT Open courseware. My son is in 9th grade and wishes to learn programming. HE has never taken any programming c…
 updated 11 months ago
 5 replies
 1 Medal
Mathematics

Fahim321:
Let R be the region between the graph of y=e^2x and the xaxis for x is greater than or equal to 3. The are of R is
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

gerryliyana:
anyone can? Find the Taylor series expansion of a function of f(z)=z exp(2z) about z = 1 and find the region of convergence.,
 updated one year ago
 21 replies
 1 Medal
Mathematics

lilfayfay:
Consider the differential equation dy/dx=(1+y)/x, where x cannot = 0
a.) On the axes provided, sketch a slope field for the given different…
 updated one year ago
 52 replies
 1 Medal
Mathematics

nik919:
6i(4  i^18)(3  7i^63) heeeelllllppp
 updated one year ago
 21 replies
 1 Medal
Mathematics

Kikazo:
Can you help me with this integral?
 updated one year ago
 8 replies
 No Medals Yet
Mathematics

raevenbennett:
Look at the matrix shown here. What is entry D12?
 updated one year ago
 9 replies
 2 Medals
Mathematics

raevenbennett:
What are the dimensions of matrix A?
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

3psilon:
Solve for theta sin θ/2 − cos θ = 0
 updated one year ago
 19 replies
 1 Medal
Mathematics

laddu355688:
Find a unit vector that has the same direction as the given vector. <9,3>?
 updated one year ago
 5 replies
 1 Medal
Mathematics

justinfung:
For two independent hypothesis testing, if the significance level are both set to be 10%.
What is the probability that we make at least one…
 updated one year ago
 1 reply
 1 Medal
Mathematics

Silent_Sorrow:
Given B={U, V} as an orthogonal basis of 2space and X=aU+bV. Prove a=(X•U)/U^2
The capitals represent vectors
 updated one year ago
 4 replies
 1 Medal
Mathematics

wach:
What are some good resources to learn computer Forensics, Cryptography, Web Exploitation, Reverse Engineering, and Binary Exploitation? All …
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

zhengcl86:
Prove the folliwing combinatorial identity if 1≤k<n . this identity is known as the hexagon identity and relates terms in pascal's triangle
 updated one year ago
 5 replies
 No Medals Yet
Mathematics

Jennnn:
2log(5)=5 True or False
 updated 2 years ago
 8 replies
 No Medals Yet
Mathematics

Jennnn:
is this true for logs?
ln(a+b)=(ln(a))(ln(b)) for all positive a and b
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

bianka:
can any one show me how to do 33% off 48.95 ??:)
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

dfyodor:
I am attempting to model a situation with a second order differential equation. The model appears to be valid, and all units match up proper…
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

sdj:
suggest any websites that has code practicings and tests.........??? for java c c++
 updated 2 years ago
 2 replies
 2 Medals
Mathematics

lusbus0306:
evaluate the line of f(x,y)along the curve c
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

lostdove:
2csc(3x/2)..what would the points of inflection be
…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

mathsux4real:
True or false:
The parabola x+5(y3)^2=6 opens to the right.
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

phil273:
Write an expression for the slope of a line whose equation is Ax+By+C=0
 updated 2 years ago
 9 replies
 1 Medal
Mathematics
 > Older questions