richyw
 Name:
 Rich Williams
 School:
 About:
 In my junior year, doing physics.
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Questions Answered

richyw:
Group Title
Help with this integration?
\[\int^\infty_0 \text{erfc}\left(\frac{z}{2\sqrt{kt}}\right) dz\]
 updated one month ago
 12 replies
 1 Medal
Mathematics

richyw:
Group Title
How can I solve this triangle for \(\theta\)?
 updated one month ago
 3 replies
 No Medals Yet
Mathematics

richyw:
Group Title
This might be stupid, but how do I factor \(z^4+1\).
I can do it by calculating the roots the long way and then write, it out, but what are…
 updated one year ago
 14 replies
 9 Medals
Mathematics

I.onlyaskformath.help:
Group Title
The question is in the answer box PLEASE HELP if u help i give u medal and follow
 updated one year ago
 13 replies
 3 Medals
Mathematics

samantha2859:
Group Title
robert sharpened pencils for the school math contest. he charpened 8 pencils in 2 minutes and 32 pencils in 8 minutes. if he continous at th…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

mcsmarty:
Group Title
Choose the correct description of the graph of the compound inequality
4x < 16 or x + 5 greater than or equal to 15
…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

hkl1118:
Group Title
Octavian became the emperor of Rome in 27 B.C. He ruled until his death in A.D. 14. How long did he rule as emperor?
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

shyglizzy:
Group Title
Which of the following is the best thing to do as a first step in using substitution to solve the system of equations?
…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

adventuretimefreak7:
Group Title
What is 2.8 in its simplest form?
 updated one year ago
 2 replies
 1 Medal
Mathematics

Dragonslayer55:
Group Title
what is 2+2 ?
A.4
B.3
…
 updated one year ago
 28 replies
 3 Medals
Mathematics

aklarken:
Group Title
how did the theme develope in treasure island?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Musicman778:
Group Title
A local hamburger shop sold a combined total of 604 hamburgers and cheeseburgers on Tuesday. There were more cheeseburgers sold than hambu…
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

shelbydy:
Group Title
A movie theater is filled to capacity with 650 people. After the movie ends, people start leaving at the rate of 100 each minute.
For wh…
 updated one year ago
 11 replies
 1 Medal
Mathematics

girl8r7y:
Group Title
A rock was dropped from a platform on a tower 57 feet above a lake. The rock landed on the bottom of the lake which was 20 feet under th…
 updated one year ago
 5 replies
 No Medals Yet
Mathematics

xo_kansasprincess_xo:
Group Title
True or false: According to the square root property, the solution set of x^2 = 25 is {±5}.
…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

xo_kansasprincess_xo:
Group Title
True or false: According to the square root property, the solution set of x^2 = 27 is {±3}.
…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

tuna.eng:
Group Title
Calculator question: A particle moves along the xaxis so that at time t is greater than or equal to 0, its position is given by x(t)=(t+1)(…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

RainbowsxD:
Group Title
Explain how to write a function rule from the table below. Then write a function rule.
x 2 4 6
…
 updated one year ago
 12 replies
 2 Medals
Mathematics

richyw:
Group Title
is f(0) undefined?
\[f(z)=\frac{z^3}{z+z^5}\]
 updated one year ago
 4 replies
 1 Medal
Mathematics

richyw:
Group Title
Integrate around C, where C is the positively oriented contour z=5
\[\int_C \frac{e^{1/z}(4z^33)}{z(z^3+1)}\]
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

kenilssen:
Group Title
You and a friend are looking at the stars, and you notice two stars close together, one bright and one fairly dim. Your friend comments that…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

larquitta1995:
Group Title
What must be the same for two resistors that are connected in parallel?
A. The rate at which energy is used by each
B. The potential dif…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

richyw:
Group Title
having trouble with a series expansion.
\[f(z)=\frac{z+1}{z1}\]I need series expansion in both z<1 and 1<z<∞
 updated one year ago
 7 replies
 1 Medal
Mathematics

erielle:
Group Title
RealLife Situation  Percents, Decimals, and Ratios
Will Give Medal
 updated one year ago
 2 replies
 1 Medal
Mathematics

dragonknight326:
Group Title
Mr. Rasmussen laid 9 bricks in a row to make a walking path through his garden. If each brick has a length of 8 inches, a width of 3 point f…
 updated 4 months ago
 35 replies
 1 Medal
Mathematics

72595210002:
Group Title
Use the line plot to answer the question.
How many people read fewer than three books during the summer?
…
 updated one year ago
 10 replies
 2 Medals
Mathematics

72595210002:
Group Title
Use the bar graph to solve.
What fraction of the visitors are from Ohio or Michigan?
…
 updated one year ago
 30 replies
 6 Medals
Mathematics

Concupiscent:
Group Title
The table shows the annual consumption of cheese per person in the United States for selected years in the 20th century. Let x = number of y…
 updated one year ago
 43 replies
 1 Medal
Mathematics

richyw:
Group Title
Classifying singular points.\[f(z)=\frac{1}{z(z1)}\]
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

freakenpurplepizza:
Group Title
A triangle has a base of 13 meters and a height of 6 meters.
What is the area of the triangle?
…
 updated one year ago
 12 replies
 6 Medals
Mathematics

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