Tuesday
July 22, 2014

Posts by Lauren


Total # Posts: 1,509

Math
How would you solve -9+x = x/8 -23 ?

Math
How do you solve 1/3x-6 = 9+2/3x Please help!

Math
Can you please explain what the quad formula is?

Math
-9+x = x/8 -23

Science
Make the necessary conversions between ordinary decimal form and standard exponential notation. a) 56934 = ?

Literature
In emphasizing the importance of individual thinking and basing one's beliefs on one's own experiences, Sujourner shows she has much in common with

Statistics
how do it on paper and pencil?

Statistics
The amt of time cold sufferes will experience symptoms is normally distributed wiht a mean of 7.5 days and a standard deviation of 1.2 days what proportion of sufferers will experience in LESS THAN 4 days , also what proportion will experience sympotms for 7-10 days How do you...

social studies
How many people lived on the north american continent before european settlement?

science
How many people lived on the north american continent before european settlement?

Internal Assessment Topic
I have to come up with an Internal Assessment topic for history, and I want something that focuses on Trotsky, but I'm having trouble thinking of a good topic. I would've liked to compare the roles of Trotsky and Lennin in the October Revolution, but my friend has cho...

20th Century World History
I have to come up with an Internal Assessment topic for history, and I want something that focuses on Trotsky, but I'm having trouble thinking of a good topic. I would've liked to compare the roles of Trotsky and Lennin in the October Revolution, but my friend has chos...

chemistry
how many moles of solute is present in 40.0mL of 1.000 M of HNO3

Pre Calc
the 1 is over k(k+1), and the A is over k, and the B is over k+1

Pre Calc
Solve for A and B if: 1 A B ----- = --- + --- k(k+1) k k+1

Pre Calc
Determine K: a:12! -- =k 10! b:65!+64!+63!=k^2*963! c:(k+5)!=(k^2+196)(k+3)!

Pre Calc
Determine K: a:12! b:65!+64!+63!=k^2*963! -- =k 10! c:(k+5)!=(k^2+196)(k+3)!

english
dissect sentence To sail around the world has always been my life-long dream

9th grade english
need help dissecting five sentences for parts of speech and sentence 1) Following too closely behind a car can be dangerous

spanish
Muchas gracias! :)

spanish
When one is referencing mood, I know estar is generally used because states of mood are temporary. In the following sentence, though, it seems like ser might be more appropriate, at least for the first part, because "siempre" indicates the mood is permanent. In the t...

math
find p from the formula I=prt/100 when i=20, r=5 and t=4

Chemistry
1.25 x10^-5g/ 0.75 moles = Not sure what the ^ stands for

geometry
IF a quadrilateral EPIC is a rectangle what are the slopes of the other 3 segments?

science
The combustion of acetylene in the presence of excess oxygen yields carbon dioxide and water: 2C2H2 (g) + 5O2 (g) ¨ 4CO2 (g) + 2H2O (l) The value of ƒ¢So for this reaction is __________ J/K.

AP Physics
i'm in ap physics too and we do WAY more complicated stuff than that.

Calculus
How do you factor (x^2+1)^(1/2)*(x^2-1)+((x^2+1)^(3))^(1/2)*(2x^2-2)?

math 6th grade
what i ended up getting is 2.25 feet and 0.75 yards

math 6th grade
i think the answer is 5 feet

math 6th grade
20

math 6th grade
You have 15 yards of ribbon for your gift boxes. each box gets the same amount of ribbon. How much ribbon will each box get

English 1
Please Help. I have read it over but have no clue

English 1
Which of the following statements, all spoken by Frank, BEST describes Frank's character? This is from the play, "Thunder on Sycamore street." Choose what you believe is the strongest response to this question. Write the letter of the answer you choose and briefl...

algebra 1
but its a multiple choice and it doesnt have that as one of the choices...

algebra 1
the question is: What is the sum of 5 radical 7 and 3 radical 8? i dont understand how to solve this because i cant pull out a perfect square

statistiss
you need the table in order to do the question.

Chemistry
the answer is 6.20 L

Chemistry
its 6.20 L

algebra
yOUR BROTHER TRAVELED 117 MILES IN 2.25 HOURS TO COME HOME FOR SCHOOL BREAK. wHAT'S THE AVERAGE SPEED THAT HE WAS TRAVELING?

math
52 i think

math
I got 0.01923077

math
thank you i will

math
2.25 divided by 117 is 2 by 10 is 5 and I am cinfused now

math
13 miles per mile I THINK

math
YOur brother traveled 117 miles in 2.25 hours to come home for school break. What's the average speed he was taveling

EDU
she is right

english
It is a correct runon sentance, congrats

WRITING
Some say that texting on a cell phone is a bad thing for students focus, but their is a simple thing we can do is by having the teachers go around the classroom to see if students are texting. how can i fix this run-on sentence

chem help!!
i am talking about nails..nails that have iron in them

chem help!!
What effect does bending, stress, or machining have on the tendency of iron to corrode?

Chemistry
The problem on my homework is: What mass in grams of iron metal is required to react with 2.50 L of .1500 M of sulfuric acid to produce 18.35g of iron (III) sulfate? please help!

language arts
Is it... a lyric poem??

language arts
What kind of poem is "Solitude" by Ella Wheeler Wilcox? (lyric, ode, haiku, etc.)

math
How do I figure out what the nth term is in a sequence? Exmaple: 1, 3, 5,7, What would be the 100th term? IF adding 2 to each would the formula be n+2? How to calculate 100th term?

math
A person writing a book numbered the pages consecutively starting with 1 and had written 4553 digits. how many pages had she numbered?

WRITING(POEMS)
IS BUTTERYNESS SPELLED LIKE THIS BECAUSE SPELL CHECK IS NOT PICKING IT UP .

Math
1/6 of 18 =3 so shirley has 3 quarters =75 cents 1/3 of 18=6 so shirley has 6 dimes =60 cents and 1/2 of 18=9 so shirley has 9 nickels= 45 cents 75+60+45=180 cents

physics
"An adiabatic process is a process in which no heat is transferred. This can happen if the process happens so quickly that there is no time to transfer heat, or if the system is very well insulated from its surroundings. " im not sure what the question means...either...

algebra II-URGENT
P=2l+2w 270=2(w+25)+2w 270=2w+50+2w 220=4w 55=w so l=w+25 =55+25 =80 Check P=2l+2w 270=2(80)+2(55) 270=160+110 270=270

Math
Im not sure by your equation why you are to follow that process, but if you are to first square the two numbers then you get rid of the -ve ie: 567.2^2 and (-459.6)^2 i hope this helps

Algebra II
85=(88+83+75+80+x)/5 85(5)=88+83+75+80+x 425-326=x 99=x

algebra
-8x-3y=2 -3y=2-8x y=(8/3)x+2 so the slope of the given line is 8/3 and since the line is parallel, it will have the same slope. now we can use the given point to solve for b y=mx+b y=(8/3)x+b -4=(8/3)(6)+b 12=b

calc
the tangent line to the graph of y=sin x at the point (2pi/3, (radical 3)/2) crosses the sine graph at the point where x=?

Math
m=y2-y1/x2-x1 =(-3)-(-6)/1-(-5) =3/6 =1/2 y=mx+b y=1/2x+b now use either of the points to solve for b -3=1/2(1)+b -3-1/2=b 2.5=b so y=0.5x+2.5

math
The volume of a pyramid is V=1/3Bh where B is the area of the base and h the height from the base to the apex. This works for any location of the apex, provided that h is measured as the perpendicular distance from the plane which contains the base. so yes, this statement is f...

Math
Divide and Simplify: y^2-25/7 divided by 7y+35/49

Math
Divide and Simplify: y^2-25/7 divided by 7y+35/49

Math
Multiply and Simplify: Can you please show me the steps on how you get the answer. Thank You 2/4n+6 times n^2+2n-3/n+1

MATH
can someone explain how an quadratic equation with factoring and give an example,PLEASE!

MATH
can someone explain how an quadratic equation with factoring and give an example,PLEASE!

Food Chemistry
Calculate the amounts and pH values for preparing the following acetic acid/acetate buffer solution. 1.) In the first step, If you plan to prepare a 2.00 M sodium acetate in 200.0 mL distilled water, how many grams of sodium acetate should be added in water? 2.) B. In the 2nd ...

Physics
You meet a person with prescription glasses of +1.74 dpt. What is the near point of this person? Express the result as a positive number! Hint: the near point of a healthy person is 25 cm. An object placed at this distance will form an image at the near point of the person. i ...

physics
You meet a person with prescription glasses of +1.74 dpt. What is the near point of this person? Express the result as a positive number! Hint: the near point of a healthy person is 25 cm. An object placed at this distance will form an image at the near point of the person. 1....

physics
A light ray strikes a flat, L = 1.6 cm thick block (depth) of glass of refractive index 1.49 at an angle of 30 with the normal. Calculate the lateral shift of the light ray, d. there is a digram showing the light ray continuing at the same angle (30* to normal) until it exits ...

physics
Two parallel wires carry currents I1=100A and I2 (they run in the same direction). The top wire is held in position; the bottom wire is prevented from moving sideways but can slide up and down without friction. if the wires have a mass of 10g/meter of length, calculate I2 such...

Math
If spiner has 3 equal sections of yellow, blue and green and another has equal sections of yellow, blue, green and red and you spin both spinners at the same time what is the probabiliy of getting 2 colors that are the same?

Trigonometry
How do I find the value of sin(a-b) if tana=4/3, cotb=5/12, 0<a<90, and 0<b<90?

Math Analysis
Oh wow that is simple. Thank you so much for your help.

Math Analysis
How do I simpllify 1-sin^2x/1-cos^2x?

Math analysis
thank you for your help

Math analysis
How do I simplify cscx-cotxcosx?

math
Can you help me solve this solving quadratic equation.x^2-x-1=0

physics
A thin cylinder of copper has a mass m=50g and is 1 meter long. what is the minimum current that has to flow through the cylinder for it to levitate in a magnetic field of 0.1T. would i use B=uI/2pi(d) im confused about what d is and how the mass relates to this...

math check
Peform each indicated operation and simplify. Can you please check my answers. Thank you. A)(x^2+2x-3)+ (2x^2-x+1) Answer: 3x^2+x-2 B) (-x^3+2x^2-5)+(x^2-x+6) Answer:-x^3+3x^2-x+1 C) (3y^2-x+7)-(y^2-2x+3) Answer:4y^2-3x+10 D)(2x^2-xy+y^2)-(-3x^2+xy+y^2) Can you help me with th...

Math Check
Srry the problem for a is suppose to be 2x(x^2-3x+2) this is my answer 2x^3-6x^2+4x

Math Check
All the directions say for these three problems is multiply and simplify. Are my answers correct? Thank you A)(x^2+2x-3)+(2x^2-x+1) Answer: 2x^3-6x^2+4x B)(x+1)(2x-1) Answer: 3x-1 C)(x-2)(x^2+2x-3) Answer: x^3-7x+6

Physics
You often see birds resting on power lines that carry currents of 50A. the copper wire on which the bird stands has a radius of 1.1cm. assuming the birds feet are 4.0 cm apart, calculate the potential difference across its body... -------- V=IR R=pL/A I=50A L=4.0cm p=from tabl...

calculus
the limit from n->infinity of the summation of [2+(3/n)k]^2(3/n) when k=1

chemistry
a 500.0 g sample of h2o2 conatins 31.50% h2o2 by mass find the mass of water in the solution

math
I'm doing solving quadratic equations.I need help with couple of problems. k(k+5)=0,4r^2=100

Physics
A particle of mass m moving at 5 m/s in the positive x direction makes a glancing elastic collision with a particle of mass 2m that is at rest before the collision. After the collision, m moves off at an angle of 45 degrees to the x axis and 2m moves off at 60 degrees to the x...

computers
Explain what the Easter eggs in microsoft are? They are like hidden messages right? Why do they put them in there? Can they still put them in there? Why would they want to do put hidden messagesin their programs. Where can I find out more inmformation?

social studies
how is the iroquois confederacy diff. from the colonial government?

social studies
comapare and contrast the Irouquios confederacy and the colonial government.

Math
A set of scores with a normal distribution has a mean of 32 and a standard deviation of 3.7. Which score could be expected to occur the least often?

6th grade
what happened to Rome after the Punic Wars?

algebra
-4x^2-18x+10

math
Can you help with three problems 1)2x^2+7x+3 2)6x^2+5x-4 3)4x^2+12x+9 I have to factor this problems.Please help

math
Erin takes a total of 5 hours in her boat to travel a distance upriver and return downriver the same distance. If the time traveling upriver is twice the time traveling downriver, how many hours does each trip take? How do I put this into two equation and use the matrix to sol...

chemistry
How many grams of CH4 are needed to react with 160.0 grams of Br2

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