# Posts by jessica

Total # Posts: 3,338

**Physics**

A 1.6-mole sample of an ideal gas is gently cooled at constant temperature 280 K. It contracts from initial volume 37 L to final volume V2. A total of 1.9 kJ of heat is removed from the gas during the contraction process. What is V2? Let the ideal-gas constant R = 8.314 J/(mol...

**writing**

Sentence 1: I am writing in reply to your advertisement in the Elkhart Sun for a sails representative. Which correction should be made to sentence 1? 1. Replace to with too 2. Replace sails with sales 3. Insert a comma after advertisement 4. Insert a comma after for 5. No ...

**algebra**

the larger leg of a right triangle is 7ft longer than its samller leg. the hypotenuse is 1ft longer than the larger leg. how many feet long is the samller leg?

**Prenatal Development**

I'm having a hard time choosing a teratogen (anything that causes harm to a fetus), especially since all the easy ones to find ones are all taken--Radiation, Rubella, Syphilis, Hydrocodone, Heroine, Methamphetamine, Methadone, Caffeine, Nicotine, Mercury/Methylmercury, ...

**math check answer**

Thanks so much

**Math--Algebra**

Please help! I need this for extra credit!

**Math--Algebra**

What are the math problems?

**physics**

Susie and Sally are seated on opposing sides of a seesaw. Sally weighs 500 N and is seated a distance of 2 m from the fulcrum (point of rotation). Susie weighs 450 N and is seated a distance of 2.5 m from the fulcrum. Who is being lifted upward?

**math**

what is 14.876 rounded to the nearest hundredths?

**Spanish 2**

Thanks a lot!! :)

**Spanish 2**

Double Object Pronouns. Sustituya (Substitute) los complementos directos e (and) indirectos por sus respectivos pronombres. Modelo: Alberto le sirvió café a Jimena. Alberto se lo sirvió. Can you please check my anwsers for these sentences? Gracias! 1....

**SPANISH 2 HELP**

Thanks

**SPANISH 2 HELP**

Will someone check my anwsers? Thanks ¿Quién te sacó estas fotos? A. Julio me los sacó. B.Julio te las sacó. C.Julio me las sacó. ¿Quién les mandó estas flores a Uds.? A.Ceci nos los mandó. B.Ceci nos las ...

**Spanish 2**

I need help picking the rightsentence form? Thanks ¿Quién te sacó estas fotos? A. Julio me los sacó. B.Julio te las sacó. C.Julio me las sacó. ¿Quién les mandó estas flores a Uds.? A.Ceci nos los mandó. B....

**Math**

Find the solution and round to the hundredths. 24 divided by 0.865. I got two answers I'm confused.

**Chemistry**

Use activity coefficients to find the concentration of hydrogen ions in a solution of 65.0 mM butanoic acid and 0.01 M NaCl. The ionization constant of butanoic acid is Ka = 1.52 × 10-5. Take the size of C3H7COO– to be 500 pm. Find [H+], pH, and alpha.

**QSO 510**

221667

**HIstory HELp!!**

Please help with history? I have a project where I have to find the primary and or secondary source of today's time. The questions are 1.what is the context of the primary/secondary source that you have discovered? 2.what do you believe this reveals about society today? 3...

**HISTORY**

Please help with history? I have a project where I have to find the primary and or secondary source of today's time. The questions are 1.what is the context of the primary/secondary source that you have discovered? 2.what do you believe this reveals about society today? 3...

**precalc**

The front sprocket off a bicycle is 12 centimeters and the rear one is 5 centimeters. If the front sprocket is rotating at 40 revolutions per minute, what is the angular velocity of the little sprocket?

**English**

And I forgot to add, out of the 6 quizzes I only took 2. 4/5. I know I'll do good on the labs & exams but the quizzes are kinda hard. Do you think the quizzes will hurt my grade in the end? thank you!

**English**

Yes, I have to have c+ to pass this class.so far I have 65.6% & need 76% to pass? If I take the other 8 labs, 3 quizzes, 2 exams that are left & get C's on exam or Ds;do you think I'll get B? Thank you so much!

**English**

i have a hard time calculating my grade & am in college. Please tell me the grade I have so far & will have, thank you!365 points in the course is needed. Lecture exams and quizzes are worth about 60% of the total grade &90 ≤ A 80 ≤ B < 90 70 ≤ C < 80 ...

**Science**

What property of water causes a water droplet to be shaped like a dome? Also can you please explain these words? Surface temperature, surface area and surface tension.

**Chem**

how many grams of KMnO4 should be weighed out to give 0.100 mole?

**math**

Nina walked 15 yards to pauls house which rule shows how many yards nina walks for every yard pauls walks

**math**

If the radius of a circular wave is increasing at 2 meters/sec, how fast is the area changing when the radius is 5 meters? A)62.8 square meters per second B)25.0 square meters per second C)31.4 square meters per second D)6.3 square meters per second E) None of the above

**math**

If the radius of a circular wave is increasing at 2 meters/sec, how fast is the area changing when the radius is 5 meters?

**science**

what are three states of matter

**Physical Science**

A sedan weighing 4000 pounds travelling at 30mph collides head on with a compact car weighing 2000 pounds and travelling in the opposite direction at 45 mph. What is the resultant velocity of the combined vehicles?

**Math**

Thank you so much Ms.sue your a life saver!!!

**Math**

I'm trying to find the height of the rectangular pyramid

**Math**

The volume of it is 1125 cubic inches, the length is 18 inches, and the width is 15 inches. Can you also show me how to do because I have a test on it Monday. Thanks!

**math**

the pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full . what fraction of the tank does Jean still need to fill?

**math**

Hello if you need homework help call this number (5084843860)

**math**

I have no idea

**history**

When the First World War ended, Americans welcomed what they hoped would be a “return to normalcy.” The decades that followed, however, are ones which would rarely be described as normal, in comparison to what came before or after. During these decades, a struggle ...

**Science**

Solution preparation: 500ml's of .2M Sodium Cacodylate Buffer with a pH of 7.4 I don't even know where to start, could someone please tell me how to do this problem.

**life orientation**

Air pollution is one such environmental problem that causes ill health,accidents,crises(and disaster within any community within South Africa or globally)

**math**

You add 3/4+3/4+2 to get your answer

**math**

Paid $750 if u multiply 2.50 and 300. Then I multiply 750 and get 225. Fo I subtract that from 750 and get 525 or is it the snswer $225?

**math**

Ok but I don't knoe how to do it

**math**

I'm so confused on how to do it

**math**

I need help!!! Whats the name of the other person you did it to?

**math**

Miriam orders a shipment of 1500 pounds of ice for her supermarket. The ice comes in individual 5 pound bags that cost Miriam orders$2.50 each. Miriam sells the bags for 30% more than her cost. How much profit, in dollars, will Miriam's supermarket earn from the sale of 1 ...

**math**

Ok this is what I did. 5÷1500 got 300. Took 300×2.50 got 750. Subtracted 120-36 got 84. Then, I took 750×.3 and got $225. Ibdon't know if that's the answer or what. This is just confusing.

**trigonometry**

what are the solution sets to x^5-2x^3+x=0 and how do you get them?

**math Statistics**

Suppose that 33 out of 300 selected american drivers read the newspaper while driving. what percent of sample proportions are greater than this?

**Basketball Current Event**

Do you go to Helen Bernstein? Apex? I think I know you

**Math**

IDK but I'm not in eight grade, YET!! Comment, share, and love My pro in Facebook. Find me as Jessi Vertiz

**math**

solve the simultaneous equations; log x base 2-log y base 4=4, log (x-2y)base 2=5

**Math**

40+40x0+1 40+0+1 41

**math**

if log x base a,log y base a and log z base a are three consecutive terms of an AP,show that x,y and z are consecutive terms of a GP

**math**

simplify log squaroot of 2 base 7

**Algebra**

there is no solution

**Algebra**

there is no equal sign.so to what is that equated to

**CHEM**

the equation is already balanced

**chemistry**

C H N MASS 39.97g 13.41g 46.62 #mol 3.33 13.41 3.33 ratio 1 4 1 empirical formular CH4N empirical mass 30 (CH4N)2=C2H8N2 THUS THE MOLECULAR FORMULA

**math**

20 cups

**Physics**

A block of mass 17.9 kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 2.01 m/s2. What is the tension in the cable? What is the magnitude of the net force acting on the mass? What is the speed of the...

**Math**

SIMPLY MULTIPLY THE 8 HOURS BY 7 DAYS WHICH GIVES 56

**Science**

What is the percent of fresh water and salt water?

**Math**

Name the vertices of the square to the right

**Easy Math**

I am confused on how to do this ? ! Jeff is a salesperson in a retail store and earns $52 per week plus 13% of his weekly sales. If Jeff made $312 one week, what were his sales that week?

**Chemistry**

CONCENTRATION OF NaClO IN COMMERCIAL BLEACH. Bleach comes as 6%(mass/volume) solution of NaClO. Calculate the Molarity of NaClO in bleach to three significant figures ( you need molar mass of NaClO)

**College Algebra**

Hello - I am stuck on this problem and I'm in serious need of some help. I don't understand this question at all. The problem is: Find the equilibrium quantity and equilibrium demand function for the given: Supply: P=45q Demand: P=q^2+10,000

**math**

Find the % of Discount Regular Price $25,000 Sale Price $22,000

**math**

Find the % of Discount Regular Price $90 Sale Price $22.50

**math**

1 ten

**math**

Find the % of Discount Regular Price $125 Sale Price $100

**math**

Find the % of Discount Regular Price $125 Sale Price $100

**math**

thanks Ms. Sue!!!

**math**

Find the % of Discount Regular Price $72 Sale Price $60

**Physics**

Maria throws an apple vertically upward from a height of 1.3m unit an initial velocity of velocity of 12.4m/s 1. will the apple reach a friend in a tree house 5.3m above the ground. 2. If the apple is not caught, how long will the apple be in the air before it hits the ground.

**Physics**

Stephanie hits a volleyball from a height of 0.80m and gives it on initial velocity of 17.5m/s straight up 1. How high will the volleyball go? 2.how long will it take the ball to reach its maximum height?

**math**

suppose that denise had doubled the number od trays of chocolate chip and oatmeal raisin cooies she bakes.How many trays of cookies would she have baked?

**PHY 171**

How does a derivation differ from an experiment or theory?

**Physical Science**

I studied this 2 years ago in college and am no back in school. I can't remember any of this stuff and I really need to figure it out. Please Help Me!! The Latent Heat of Vaporization for water is 540. cal/g. How much heat (in calories) must be added to 10.0 g of water at ...

**Math**

Please explain to me how I can do this .Sarah works in an appliance store. She gets a commission in addition to her hourly pay. She earns a 4% commission for sales up to $4000 and a 7% commission for all sales in a month above $4000. Last month her sales were $5300. How much ...

**Simple Math**

Two eight-sided number cubes are thrown. Given that one of the cubes shows a five, what is the probability that the sum of the numbers that come up on the two cubes is six?

**Simple Math**

A drawer contains 8 red socks, 4 white socks, and 2 blue socks. Without looking, you draw out a sock, return it, and draw out a second sock. What is the probability that the first sock is white and the second sock is blue?

**social studies**

i tried that and an article did not show up

**social studies**

Where could I find an article about gun control?

**math**

divide 775 by 3

**Math**

yes.

**Math**

divide 200 by 120 to get your answer

**Business English**

it is

**Algebra**

you take .80and mutiply by 99, then take that answer and subtract it from 99

**Algebra**

$80.19

**English 8R - help!**

I have.

**english communication**

it is right

**Math 8R - HELP!**

yeah.you are right.

**Math 8R - HELP!**

gtg

**Math 8R - HELP!**

that is not right what grade are you in bobpursley?

**Math 8R - HELP!**

2x0=0 5x=-3 what is x?

**Math 8R - HELP!**

you take 2 times 0 to get rid of the y, then you have 5x= negative three figure out x or else you are never going to learn. Is this due tomorrow?

**Math 8R - HELP!**

you have it right so far

**science**

Where can I find an article about the flu virus?

**math**

sorry i meant sphere

**math**

cylinder