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Posts by Lauren

Total # Posts: 1,839

Math 6th grade
Can you give me a word problem for 11/12 / 1/4?

algebra
thank youu!

algebra
the product of the square of a number and 8? fifteen less than the sube of a number? thanks!

Physics
0.801m

Lit
what was the mother's role in the puritan family? thank you

geography
I have homework and I left my book at. School and I need some landforms

psychology
dignity and human welfare

Calculus
Given that f(x)=x^8h(x) h(−1)=5 hŒ(−1)=8 Calculate fŒ(−1).

Calculus
Find a cubic function y=ax3^+bx^2+cx+d whose graph has horizontal tangents at the points (-1, -16) and (1,12).

Algebra 3 and trig
An ocean liner is 177 miles due west of lighthouse A. Lighthouse B is 265 miles due south of lighthouse A. Find the distance from lighthouse B to the liner and the bearing of the ocean liner from lighthouse B.

Algebra
The Oldham's living room is a rectangle measuring 19ft by 20ft. What is the area?

Chemistry
Use Hess's Law to find the change in heat of 2C(graphite)+H2(g)-->C2H2(g)? Given: C(graphite) + O2(g) --> CO2(g) change of heat rxn = -393.5 kJ 2H2 (g) + O2(g) ---> 2H2O (l) change of heat rxn = -571.6 kJ 2C2H2 (g) +5O2(g) ----> 4CO2(g) +2H2O (l) change of heat...

Physics
10

Calulus
At what interval is 2x^3+0x^2-54x+6 increasing?

chemistry
can you convert the grams to liters of water using the conversion factor of 22.4 liters in one mole?

physics
A block of mass 8.50 is sliding along a smooth surface when it encounters a 0.800 long region of roughness with =0.310. The block emerges from the rough patch at a reduced speed of 5.00 and continues on.

physics
A solid disk of radius 6.50cm and mass 1.65kg , which is rolling at a speed of 2.60m/s , begins rolling without slipping up a 10.0 slope.How long will it take for the disk to come to a stop?

orchestra programs????????
orchestra programs for teens in rockland county??? like a group of teens playing songs and they perform it (concert)

theology class????
I'm Christian and I'm applying to a catholic high school (due to the budget cuts in my district). The thing is that I'm required to take theology (Religion class) for four years of high school. ... I'm just wondering, it's theology interesting, fun... and ...

distributive property
What is the answer to this problem -7(10+7f)

Algebra
Find the distance d(P1,P2) between the points P1 and P2 P1=(-1,5);P2=(2,4) d(P1,P2)=

Find the equation....
Find the equation with the given properties. Express the equation in slope intercept form. Containing points p=(-4,-2) and Q=(-2,1) What is the equation of the line? y=

geography
What regions have low or high annual precipitation?

Calculus
Below is a table containing information about differentiable functions f and g: x: -2 -1 0 1 2 f(x): 4 3 5 2 1 f'(x):1 4 2 5 3 g(x): 5 2 1 3 4 g'(x):3 5 4 1 2 F(x) + g(x), G(x)=f(x) * g(x), H(x) = g(x)/f(x) Find F'(-1) Find G'(0) Find H'(-2)

Calculus
A man starts walking north at 4 ft/sec from point P. Five minutes later a woman starts walking south at 5 ft/sec from a point 500 ft due east of P. At what rate ae the people moving apart 15 minutes after the woman starts walking? Draw a diagram. 1) What rate is given? State ...

third grade math
Define 3-fracture

Find the intercepts
Find the intercepts and graph the equation. 3x+4y=12

Finding the midpoint
Find the midpoint of the line segment joining the points P1 and P2 P1=(3,2) P2=(-5,7) The midpoint is=

chemistry
A 337-\rm mL sample of unknown \rm HCl solution reacts completely with \rm Na_2CO_3 to form 17.1g \rm CO_2. What was the concentration of the \rm HCl solution?

chemistry
What volume of 2.25\it M \rm HCl in liters is needed to react completely (with nothing left over) with 0.750L of 0.200\it M \rm Na_2CO_3?

math
what is 25.515 rounded to the nearest cent?

physics
a cannon with a mass of 1200 kilograms is positioned at the edge of a cliff where it fires a 100 kilogram cannonball horizontally. The cannonballs initial speed is 35 meters per second. What is the recoil of speed of the cannon.

SCIENCE 8R - HELP!
...G.....g G..GG...Gg g..Gg...gg G - Blue g - Black G - Dominant g - recessive Homozygous - ????????? Heterozygous - ??????? Please help ..... I need to find the percentage of Homozygous and Heterozygous and find which on is Homozygous and Heterozygous! (I have to make up a ...

lit
what are the symbols of the story tuesday siesta?

Lit
THANK YOU!

Lit
oh! and can u define what characterization is?

Lit
what is the style of the book tuesday siesta? thanks!

statistics
Are Chicken based dishes more populat than Pizza to a level which is statistically significant at the 95% confidence level? What figures do i have to look at to work it out? Thanks

geometry
From point Q on circle P, an arc is drawn that contains P. Find the measure of the arc AQB that is cut off.

Physics
Electrons are accelerated to reach a kinetic energy of 250 eV (= 4.0 x 10-17 J). If the acceleration is done in a distance of 0.20 m, what is the magnitude of the electric field causing the acceleration?

logic
3?

physical
Hey everyone... hoping I can get an answer soon... I have a PD/H/PE homework assignment on which we have to create an collage on Physical, Spiritual, Emotional, Social and Mental health. I am stuck on a definition for spiritual health, me not being a very big know-it-all in PD...

SCIENCE 8 PLEASE HELP!!!!!! (ASAP!)
THANK YOU! :)

Pre Calculus
A contractor is to fence off a rectangular field along a straight river, the side along the river requiring no fence. What is the least amount of fencing needed to fence of 30,000 meters squared?

ALGERBRA_HELP_ASAP
.I need to find a rule for .the inputs: 1,2,3,4 and the outputs:3,9,18,30. Please Help! Thanks

Physics !
Paul pulls a stalled car with a rope 493-m with a force of 267-N, calculate the powered generated by Paul after 9 minutes pulling it down the road.

Science 8R - help....!!!!
THANK YOU! :)

Science 8R - help....!!!!
What happens during a solar and a lunor eclipse?

Chemistry
The freezing point of ethanol is -114.6 C and its Kf value is 2.00 C/m. What is the freezing point for the solution prepared by dissolving 50.0 g of glycerin (C3H8O3) in 200.0 g ethanol? I used Change in temp=Kfm kf=2.00 I calculated m to be 2.1736. I ended up the answer of -...

Math
Which binomial is a factor of f(x) = x^4 27x^2 14x + 120? (x 4) (x 2) (x + 5) (x + 6)

Math 8R - HELP! (PLZ!)
can someone please help me because I'm really have a hard time with my homework. I understand some it but .... some problems are in different forms... and I looked in my notes (actually we don't have any notes JUST EXAMPLES! :( ) and..... omg it's hard please ...

Math 8R - HELP!
2x + 3y = 6 4x + 6y = 12 please help (I DO NOT want to discuss the other problem...)

English 8R - help!
Have anyone watch "Forrest Gump"? (please answer this question...I need help with something)

Math 8R - HELP!
5x + 2y(0-y) = -3 don't you minus 2y on both sides (under -y)????

Math 8R - HELP!
bobpursley is a teacher on jiskha hw help

Math 8R - HELP!
i got -0.6.... i don't think that's the answer for x... I'm solving for x and then I have to su solve for y

Math 8R - HELP!
yes you don't have to give me the answer I just wanted you to write it out so that I can understand and figure out the answer myself.

Math 8R - HELP!
i know but can you please help me do the rest

Math 8R - HELP!
Multi-Step Equations Systems of Equations x + y = 0 5x + 2y = -3 this is what i got so far.... x + y = 0 ----> x = 0 - y 5x + 2y(0-y) = -3 please help!!!!

MATH 8 HELP!
Y = -x + 10 y = x + 2

physics
A cement block accidentally falls from rest from the ledge of a 51.7-m-high building. When the block is 14.9 m above the ground, a man, 2.05 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way?

Math 8 - HELP! (PLZ!)
7 times a number decreased by 4 is the same as 6 plus twice that number my answer - 7n - 4 = 6 + 2n am i correct and can you help me solving it, please!!! thank you! :)

Math 8 - HELP!
Thank You! :) You can delete my other post (sorry about that...)

Math 8 - HELP!
7 times a number decreased by 4 is the same as 6 plus twice that number my answer - 7n - 4 = 6 + 2n am i correct and can you help me solving it, please!!! thank you! :)

Math 8 - HELP!
Write the equation of the line that passes through the points (1,6) and (-1,-2) please help!!!!

Science 8R - help!
ok, Thank You! :)

Science 8R - help!
HW - Name an example of the 6 simple machines that are in your home. So I have to write an example each or write an example that is an example for ALL six simple machines.

Government & Politics
All of the above

Math 8 - HELP!!!
Give an example of a rational number between 1.5 and 1.75 Ok.. I SERIOUSLY need help with this problem.

Please help -biology
YOUR WELCOME! :)

Please help -biology
Because they both have different bonds. Water contains stable O-H bonds, whereas hydrogen peroxide contains a much less stable O-O bond as well. Because there is an extra bond in hydrogen peroxide, the molecule as a different geometry than the water molecule. This already ...

Math 8 - HELP!!!
THANK YOU! :)

Math 8 - HELP!!!
A 5 7/8 ft section of wood was cut from 9 1/2 ft board. How much of the original board remained.

math
how many red beads would there be a pattern with 51 blue beads?

Chemistry
0.796 atm

SS8R - help!!!!
THANK YOU! :)

SS8R - help!!!!
What were the various ways in which Progressives reformed society in the following areas: voters' rights: 16th and 17th amendment big business: sherman anit-trust act public works: !?!?!?! woman rights: less corrupt + morally superior education: john deney (teach and ...

English 8R - Essay Check (plzzz read!)
Let me be frank. Its lousy. 1. In the introduction, describe in brief what you are going to to. Something like the trailer of a movie. (Para1)In the subsequent paragraphs, point out a contrast and a related similarity. (para 2) (para 3) 4. Summarize in a few lines what you ...

English 8R - Essay Check (plzzz read!)
thanksssss

English 8R - Essay Check (plzzz read!)
Please check my English essay to see if it's good. I need help with my conclusion. There are similarities and differences of the activities that take place in both urban and rural setting. The activities that take place in both rural and urban setting of these two pieces. ...

chemistry
An experiment requires 0.7 M NH3(aq). The stockroom manager estimates that 15 L of the base is needed. What volume of 15 M NH3(aq) will be used to prepare this amount of 0.7 M base? Answer in units of mL

chemistry
An experiment requires 0.7 M NH3(aq). The stockroom manager estimates that 15 L of the base is needed. What volume of 15 M NH3(aq) will be used to prepare this amount of 0.7 M base? Answer in units of mL

chemistry
A sample of 6.65 grams of NaOH is dissolved into 621 mL of aqueous 0.250 M NaOH (as- sume no volume change). This solution is then poured into 2.16 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the final solution? ...

spanish
what would the possesive pronoun be? Se me quedaron en casa los libros. ¿Trajo Ana ____ (hers)? Uso mi teléfono celular cuando viajo. ¿Cuándo usa Ramón _____ (his)? Tu profesora es muy simpática. _____ (Ours) es simpática tambi&...

Physics
When a load of 0.97 106 N is placed on a battleship, the ship sinks only 3.0 cm in the water. Estimate the cross-sectional area of the ship at water level. (The density of sea water is 1.025 103 kg/m3.)

Physics
A pipe contains water at 4.80 105 Pa above atmospheric pressure. If you patch a 3.55 mm diameter hole in the pipe with a piece of bubble gum, how much force must it be able to withstand?

history
1. How did the ‘ruling class’ change after the American Revolution? 2. How did the ‘ruling class’ change after the Haitian Revolution? 3. How did the ‘ruling class’ change after the French Revolution?

poetry
Can anbody tell me what personification is please.

chemistry
what is the molality of a solvent that is 0.15 degree celcius

debate
i just need some point or info on pro side: - Taxes gain more money over time - Tax on capital gains at same rate as income tax will benefit the government con side: - When taxes get too high, economy goes into recession - trimming tax cuts are more simple than they seem thank...

physics
Unpolarized light passes through six successive Polaroid sheets each of whose axis makes a 59 degree angle with the previous one. What is the intensity of the transmitted beam, I/Io?

chemistry
a tank contains helium gas at 490 mmHg, nitrogen gas at 0.75 atm, and neon at 520 torr. What is the total pressure in atm?

Chemistry
a diver exhales a bubble with a volume of 250 mL at a pressure of 2.4 atm and a temperature of 15 degrees celcius. What is the volume of the bubble when it reaches the surface where the pressure is 1.0 atm and the temperature is 27 degrees celcius

physics lab
For an unknown sample of the experiment, students measure 1602 counts when they first receive their sample and 1317 counts 3.5 minutes later. Calculate the half-life t12 of their sample.

physics
a,c,d,e,f

Calc II
Can anyone just give me an idea on how to go about solving this problem

Calc II
Use the comparison or limit comparison test to decide if the following series converge. Series from n=1 to infinity of (4-sin n) / ((n^2)+1) and the series from n=1 to infinity of (4-sin n) / ((2^n) +1). For each series which converges, give an approximation of its sum, ...

physics
A charge of +Q and a charge of +2Q are separated by a distance r. The electric force of +2Q on +Q has a magnitude of F and is directed to the right. Which one of the following statements is correct regarding the electric force of +Q on +2Q?

physics
A beam of microwaves with wavelength= 1 mm is incident upon a 9 cm slit. At a distance of 2 m from the slit, what is the approximate width of the slit's image?

Chemistry
Aspirin is prepared by heating salicylic acid, C7H6O3, with acetic anhydride, C4H603. The other product produced is acetic acid, C2H402. C7H6O3+C4H6)3->C9H8O4+C2H4O2 What is the theoretical yield in grams of aspirin, C9H8O4, when 2.00 grams of salicylic acid is heated with ...

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