# Posts by nina

Total # Posts: 651

**Algebra II**

A coin jar contains 3 pennies, 8 nickels, 6 dimes, and 5 quarters. If a coin is chosen at random, what is the probability of choosing a dime? a) 8/11 b) 3/8 c) 3/22 d) 3/11 So I'm confused. I solved this, but my answer was 6/22 --> 3/12 --> 1/4 (this being my ...

**CHM 312L**

Experiment: Thermodynamics of Real Gases Chemistry 311L (Heat Capacity Ratio and the Joule-Thomson Effect) question: Imagine that you forget that an oil manometer measures pressures above atmospheric. What will happen to your calculated heat capacity ratios, and why?

**Math- HELP**

THANKS

**Math- HELP**

1. Write the fraction or mixed number as a decimal 7/8 A. 0.78** B. 0.875 C. 0.8777 D. 1.875 2. 1 1/2 A. 0.50 B. 1.5** C. 1.05 D. 1.1 3. 4 3/8 A. 0.375 B. 4.35 C. 4.375 D. 4.5** 4. Write the decimal as a fraction or mixed number 0.4 A. 4/100** B. 2/5 C. 4/5 D. 4/50 5. 7.1 A. ...

**Technology**

Yay!! I got 4/4!

**Technology**

Thanks!

**Technology**

1. Using a graphic organizer in the prewriting process can do all of the following except: A. organize the writers thoughts B. help narrow the writers topic C. research a writers story** D. help make the writing more detailed 2. Writing a story with proper sequence and ...

**Math**

Not Urgent But Please Check My Answer: A pencil at a stationery store costs $1, and a pen costs $1.50. Stella spent $21 at the store. She bought a total of 18 items. Which system of equations can be used to find the number of pencils (x) and pens (y) she bought? I think it is ...

**lgebra**

a. x+x x+x+x b. 5x c.193,194 and 195

**lgebra**

The sum of three consecutive natural numbers is 963, find the numbers. (A) First, write out an equation that models the relationship between these three numbers: x + ____ +______ = 963 2nd number 3rd number (B) Now, simplify the left side of your equation: ____________ = 963 (...

**ALGEBRA**

A rectangular room is 4.15 meters longer than it is wide, and its perimeter is 27.9 meters. Find the dimensions of the room. The length is :-------- meters and the width is -----meters.

**reading**

What is the prefix root and suffix for daintly? Am i correct? Prefix- none Suffix-ily Root- daint

**math**

What is 1/10 of 0.08? 0.07??? Am i correct?

**Grammar**

Personal- something private Reflexive- reffering back to a subject in a sentance Intencive- strong or fierce

**reading**

What is the prefix suffix , and root of the word grumbled? My answers: No prefix Led-suffix Grum root am i correct? Plz answer for all my answers and ASAP

**language arts 5th grade**

What information do you get in both a dictionaryand a glossary entry? I think basically the meaning of a word?

**reading**

If you were reading a story and you came across a word you don't know, where would be the first place you would look for a definition -- glossary or a dictionary? I think glossary am i correct?

**reading**

Is intentionally a noun,verb,adverb? I think it is an adverb am i correct?

**algebra**

.4

**Math**

Blair is decorating a birthday cake with candles. The cake has a diameter of 15 inches. She wants to place the candles about every 6 inches around the edge. How many candles will she need? How could i solve this problem?

**Math**

One tire has a diameter of 7 in and another has a diameter of 12 in. What is the difference in the distance the tires make in two revolutions? I don't get the question could you explain?

**math**

which of the following sets of line segments could make a triangle? i don't get it could you explain please a. 3,5,4 b. 1,3,2 c. 12,20,7 d.14,11,15

**social studies**

Which type of economic institution works to provide services to a community and does not pay taxes? A bank B market C non-profit D labor union (?)

**social studies**

Which of these is an example of price competition? A a new advertising campaign B a loyalty rewards program C a special holiday sale (?) D a customer satisfaction survey

**social studies**

A company in China manufactures basketballs. A company in the United States buys the basketballs and resells them to people there. What term best describes the U.S. company? A importer B exporter C producer D consumer (?)

**social studies**

For what main reason do consumers buy goods and services? A to make money to save for later B to show show support for free trade C to help grow the economy D to satisfy their wants and needs(?)

**Math**

4. is B) Sam's

**math**

Thanks Me! you're 100% correct

**Math 222**

Thank you for explaining to me on how to get the answer.I changed my name because it seems like I was getting overlooked when I really needed the help.

**Math**

Yes,because the definition of angle is two rays that are together

**statistics**

A cereal company claims that 2 in every 15 boxes win a prize. What is the probability that you do not win a prize three times in a row?

**math**

Mr Jacob has twice as much money invested at 5% simple annual interest as he does at 4%. If his yearly income from the two investment is $126, how much does he has at each rate?

**English**

#3 was actually D)"Who cares if it's dignified. I don't want to be dignified"

**chemistry**

If 6.20 mol of calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2), a gas used in welding, will be produced? CaC2(s) + 2 H2O(l) Ca(OH)2(aq) + C2H2(g)

**language arts**

the real answer for d was actually phrased "the weather today seems very humid to me" since the word humid remains I'm guessing this changes nothing and the phrasing is irrelevant?

**SS**

I'm guessing they're looking for an answer about the doctrine of monroe

**LA**

The correct answer is B. People are not murdered.

**Social Studies help!!!!**

At first I thought the answer might be C, but the western hemisphere would also include south america. Trade is not mentioned in the doctrine, and France is not either. So I'm guessing that yes the answer is D.

**math**

maria finds penny monday morning. she finds 2 tuesday morning. she finds 4 wednesday morning. on wednesday she has a total of 7 cents. on thursday, friday, saturday and sunday she finds double the amount of money she found the day before. how much money does maria have on sunday?

**Pre-Calc**

A.) Horizontal Asymptote- y=0, you can never have more than 1 (100%) or less than 0 (0%) of the chemical in the bloodstream B.) 46% is the maximum after 4.5 hours

**Language Arts**

I just took the Pretest and got 100% thanks to BOB. Thank you.

**health**

oh thank god, I hate to cheat but i'm twords the end of the year and i need this A, lizliz is correct

**Physics**

The same amount of heat entering identical masses of different substances produces different temperature changes. Calculate the final temperature when 1.50 kcal of heat enters 1.25 kg of the following, originally at 22.5°C.

**English**

I am a little confused with this question. Base Details If I were fierce, and bald, and short of breath, I'd live with scarlet Majors at the Base, And speed glum heroes up the line to death. You'd see me with my puffy petulant face, Guzzling and gulping in the best ...

**English**

I need some help with looking over my answers... thanks for the help... Base Details If I were fierce, and bald, and short of breath, I'd live with scarlet Majors at the Base, And speed glum heroes up the line to death. You'd see me with my puffy petulant face, ...

**English**

thank you

**English**

I have two questions about this poem that I don't understand. Base Details If I were fierce, and bald, and short of breath, I'd live with scarlet Majors at the Base, And speed glum heroes up the line to death. You'd see me with my puffy petulant face, Guzzling and ...

**Exam week 4**

The relativist would agree with which statement about stem cell research?

**Physics**

(a) A small mail bag is released from a helicopter that is descending steadily at 2.13 m/s. After 4.38 s, what is the speed of the mail- bag? The acceleration of gravity is 9.8 m/s2 . (b) After the mailbag is dropped, the helicopter continues descending for 1 s but then stops...

**math**

each rabbit costume needs one and one half yards of white fur fabric,a yard of blue striped fabric,and a quarter of a yard of pink felt for the ears.

**English**

Write the vocabulary word that goes with each idea. Glared - legendary - muttered - gaped -flinched- fluke - snickering - stunned. 1/.............stared at angrily. Answer: glared 2/..........something so great that stories are told about it. Answer:legendary 3/..........said ...

**Grammar**

Form Questions: 1/ I went to london last year. When.............? Answer: when did go I to london? 2/ She bought a new car. What.............? Answer: what did she buy? 3/ he visited his uncle . Who.............. ? Answer: who did he visit? 4/ I did my homework an hour ago. ...

**english**

so u'r not gonna tell me what i need to improve on

**english-thesis**

hey can u help me make my thesis better! topic is fear of being judged by society. thesis statement:the labels that society puts on each other are what isolate one another from the rest i think i have to change the wordings to make it sound more better , i need help !

**english**

oh thanks !! and it's ok , but i wish there was

**english**

so what are smokers labeled as in society other than outcasts (for example smokers are known to be failures) by the way , is it possible to have a live one on one tutor chat here ?!

**english**

what does society think of smokers in comparison to non smokers

**equation**

its julia i found out

**equation**

lia each take a bicycle trip. Anna rides 20 km 1 1/3 hours. Julia rides 100 meters in 10 minutes. Which rider has the slower unit rate?

**Math check**

-28-33?

**Math check**

Subtract -28 - (-33)= -61

**statistics**

how to identify the 5 W's in the problem of the student averages in a High School college algebra class for the last semester. the teacher wanted to see how well the class did and constructed the Distribution from the grade book. who- Students what- average when last ...

**college algebra**

y = 1 − (x − 2)^2

**math/help please**

Question: a fertilizer covers 5/8 square foot in 1/4 hour. This is the last unit rates question. Please explain how you got the answer so I can understand this lesson.

**math/help please**

Question: a garden snail moves 1/6 foot in 1/3 hour. This is unit rates. Please help, I don't get this lesson!

**math/help please**

Question: Kenny reads 5/8 page in 2/3 minutes. This is unit rates. Please help!

**Math**

How can I explain that 1 15/16 is closest to 2 than 17/8 and 63/32

**Math**

I wrote question you have not dissolved

**Math**

Please solve the Q look ( nina, math)

**Math**

Analyze Greg saw these numbers on a license plate while driving: 2,4,5,3 and 9 . Write one possible number that could be on the license plate. Help me,,

**CHM**

rank the following items in order of accuracy when they are used for their intended purpose: volumetric pipet, beaker,erlenmeyer flask,mohr pipet,graduated cylinder,volumetric flask,buret my answer MOHR PIPETTE 1 VOLUMETRIC PIPETTE 2 BURET 3 VOLUMETRIC FLASK 4 GRAD CYLINDER 5 ...

**Chemistry**

Thank you but i'm not understanding how you got .002 for x

**Chemistry**

A chemist wants to prepare phosgene, COCl2, by the following reaction: CO(g) + Cl2(g) COCl2(g) He places 2.60 g of chlorine, Cl2, and an equal molar amount of carbon monoxide, CO, into a 10.00 L reaction vessel at 395 °C. After the reaction comes to equilibrium, he adds ...

**chemistry**

a) Calculate the percent ionization of 0.125M lactic acid (Ka=1.4x10^-4) b) Calculate the percent ionization of 0.125M lactic acid in a solution containing 0.00075 M sodium lactate.

**Statistics**

In hypothesis testing, as the a level gets smaller, the level of confidence increases. True or False? And why or why not?

**Statistics**

Express the confidence interval (0.033,0.099) in the form of P-E<p<P+E

**Statistics**

Express the confidence interval (0.033,0.099) in the form of P-E<p<P+E

**Writing**

Was it b? Did you get it right?

**Math-Variance**

Favorable

**Math Word Problem %**

if lisa spends 3 hours driving to and from work each day ,what percent of her day does,she spend driving to and from work each work day

**math graphs**

Thank you so much Mili!! ;D

**Math 221**

Thank You Steve I will note that thanks again !

**Math 221**

y-y1 =m(x-x1) y=5=-3x-*(x-1) y-5=-3x-3 y-5+3=-2+1= y=-3 I don't know if this is correct

**Math 221**

the equation of a line parallel to the given line but passing through the given point. I can't figure out. y=-3x-6;(-1, 5)

**math**

Thanks Iris !! Got them all correct!

**chemistry**

a wet gas collected over water has a volume of 900 mL at50 degrees Celsius and a pressure of 84.6 kPa. The partial pressure of water at this temperature is 12.3 kPa. What is the volume of the dry gas at 120 kPa?

**ADVANCED WORD PROCESSING**

Sally will clear and set tabs in the Tabs dialog box. Desi will set and clear tabs on the Horizontal Ruler. Who is correctly setting and clearing tabs?

**Math**

What is the perimeter of a regular hexagon with sides measuring 3 1/2 feet

**Math**

A builder replaces the original 3 1/4 foot counter tops with one that are 2 1/2 feet high. What percent of the original height is the height of the replacement counter tops? Round your answer to the nearest whole percent

**Math help**

What is 27% of 90. estimate How do you solve

**MATH HELP!!**

3c-7d=-3 2c+6d=-34

**Chemistry [back-titration] - please check my sol'n**

I get it now. I didn't think about the reaction of Fe^2 and Cr2O7^2-. I thought they would produce FeCr2O7, so I thought they're in 1:1 ratio. Yes, I got 159.6 g/mol as weight of TeO2 (as what I've typed above). :) Yes, I've seen the post about the nuclear chem...

**Chemistry [back-titration] - please check my sol'n**

A 7.00 gram sample containing the mineral tellurite was dissolved then treated with 70.0 mL of 0.03114 M K2CrO7. 3 TeO2 + Cr2O7 ^2- + 8 H+ -> 3 H2TeO4 + 2 Cr3+ + H2O When reaction is complete, the excess Cr2O7 2- required a 14.05 mL back titration with 0.1135 M Fe2+. ...

**Economics**

Which of the following is not a factor of production? A. Capital B. Goods and Services C. Labor D. Land

**American Goverment**

I think it's C

**American Goverment**

Which is an important function of county government? A. taxing imports B. overseeing tribal governments C. running elections D. hosting foreign leaders

**Math**

George says that if you subtract 185 degrees from an angle that measures 360 degrees, the new angle is an obtuse angle. Is this true

**To Nina**

Oh my, thank you so much for your help...! :)

**Chemistry (titrations)**

Thank you! I understand it now. :)

**Chemistry (titrations)**

15.00 mL of 0.01200 M EDTA were used to titrate 50 mL aliquot solution containing iron (II). How much iron (II) is present in the solution? The answer in the book is 201 ppm. I tried getting the moles of EDTA (n,EDTA = 1.8 x 10^-4 mol). I think they're in 1:1 ratio, or I ...