yakeyglee
Name:
Trevor Kafka
School:
Brandeis University
About:
2010 High School graduate who ventured off the year after to pursue aerial circus arts and floor acrobatics. Will be attending Brandeis University in the spring. I have always loved physics and mathematics with a burning passion and frequently pursue it in my spare time. Web: www.trevorkafka.com (website), www.facebook.com/trevor.kafka (FB profile), www.facebook.com/circus.trev (FB page).
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xmathprobs:
If you save 1 penny on January 1st, 2 on January 2nd, 3 on January 3rd, and continue this pattern for a year (not a leap year), what will th…
updated 4 months ago
31 replies
3 Medals
Mathematics
ashishthomas7:
A very small circular loop of area 5*10^-4 square metre and resistance 2 ohm is initially concentric and coplanar with a stationary loop of …
updated 4 months ago
2 replies
1 Medal
Mathematics
kc_kennylau:
I have no problem on what my school is teaching now, except heat capacity :/
Can anyone teach me heat capacity? :)
updated 5 months ago
4 replies
No Medals Yet
Mathematics
0202:
these are the following sizes of the matrix:
W: 6x4
X: 4x3
…
updated 5 months ago
1 reply
No Medals Yet
Mathematics
Debbie_phantom:
A carpenter hammers a nail using a 0.40-kg hammerhead. Part of the nail goes into a board. (a) Estimate the speed of the hammerhead before i…
updated 5 months ago
1 reply
No Medals Yet
Mathematics
brittanyneedshelp:
what is 8 radical 3 times radical 3
updated 10 months ago
6 replies
No Medals Yet
Mathematics
JA1:
Okay so I had this question and I am so confuso!!!
Compare and contrast the two quadratic equations below. In order to receive full credi…
updated 10 months ago
12 replies
2 Medals
Mathematics
christinaeduncan:
word problem: Jenna's ipod has 250 songs on it and she adds 3 new songs every week. Amy's ipod has 320 songs on it and she adds 1 new song e…
updated 10 months ago
4 replies
No Medals Yet
Mathematics
zzr0ck3r:
Group Theory:
G/H is cyclic = <Ha> for some a in G
I want to show( I don't know if its true)
…
updated 10 months ago
5 replies
1 Medal
Mathematics
teyona928:
girl delivering newspapers covers her route by traveling 2.00 blocks west, 5.00 blocks north, and then 5.00 blocks east.
(a) What is her r…
updated 10 months ago
2 replies
No Medals Yet
Mathematics
tye403304:
how to find exact value of cos(Arcsin(5/13))
updated 10 months ago
7 replies
No Medals Yet
Mathematics
jfluth:
let H be the set of all functions from a set A to {0,1}. Show that |P(A)| = |H|... (P=powerset)
updated 10 months ago
1 reply
No Medals Yet
Mathematics
just_olivia:
convert from polar to rectangular form: cos(theta) = r sin(theta)
updated 11 months ago
2 replies
1 Medal
Mathematics
FranBerry:
Can someone please show me the steps for putting this problem into 1 fraction? (1/x)+(3/y)-(x/xy)
updated 11 months ago
4 replies
1 Medal
Mathematics
billy222:
NASA wishes to send a 33 kg satellite into orbit 30,000 km above the SURFACE of the Earth. Calculate the gravitational field at that altitud…
updated 11 months ago
4 replies
1 Medal
Mathematics
Sophia.13:
Help please, Algebra 1- Solving Rational Expressions
…
updated 11 months ago
3 replies
2 Medals
Mathematics
kiki2014:
Convert 2.5 g/mL to the unit g/L.
updated 11 months ago
3 replies
No Medals Yet
Mathematics
cowboybrown1:
1. a diagram that shows the sun at the center of the solar system is known as a(n)?
updated 11 months ago
2 replies
1 Medal
Mathematics
AmTran_Bus:
What is the total resistance in the attached pic and why?
updated 11 months ago
16 replies
1 Medal
Mathematics
abc123!:
The lengths of the sides in a right triangle form three consecutive terms of a geometric sequence. Find the common ratio of the sequence. Th…
updated 11 months ago
27 replies
1 Medal
Mathematics
InsanelyChaotic:
There is no solution to the system below.
x + 3y = 7
…
updated one year ago
7 replies
1 Medal
Mathematics
yakeyglee:
Consider the convergent infinite series \(\displaystyle S = \sum_{i=0}^\infty a_i\).
If we restrict \(a_0, a_1 a_2, \ldots \in \mathbb R\),…
updated one year ago
2 replies
No Medals Yet
Mathematics
yakeyglee:
For an infinitely differentiable function \(f : \mathbb R \rightarrow \mathbb R\) and arbitrary choice of \(a \in \mathbb R\), is the follow…
updated one year ago
4 replies
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Mathematics
NatalieLove:
Simplify 3[-4-(-5)]+4
updated one year ago
2 replies
1 Medal
Mathematics
meilendurcer:
The formula v =sqrt 64h can be used to find the velocity, v, in feet per second, of an object that has fallen h feet. Find the velocity of a…
updated one year ago
3 replies
1 Medal
Mathematics
megan.martinez:
determine whether the improper integral converges and if so evaluate it. integrate from 1 to infinity (xe^-2x) dx
updated one year ago
1 reply
No Medals Yet
Mathematics
karahjamess:
If the domain is {0, 2, -6}, what is the range of y = -2x + 3?
updated one year ago
1 reply
No Medals Yet
Mathematics
Brookebrookiee:
Solve 9x^2 - 100 = 0
updated one year ago
5 replies
No Medals Yet
Mathematics
PECKCE:
Find the term that should be added to the expression to form a perfect square trinomial. Write the resulting perfect square trinomial in fac…
updated one year ago
9 replies
1 Medal
Mathematics
28Tylerr:
Perform the indicated operations. If the matrix does not exist, write impossible.
[8 2 6] + [11 -7 1]
Please help & explain ((:!
updated one year ago
6 replies
1 Medal
Mathematics
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