Jenna

This page lists questions and answers that were posted by visitors named Jenna.

Questions

The following questions were asked by visitors named Jenna.

If the edge of a cube is increased by 50%, then the volume is increased by x%. Find x. PLEASE HELP. THANK YOU. Let Y = edge of a cube. Y + 0.5Y = 1.5Y = new edge of the cube. Then old volume is Y^3 New volume is (1.5Y)^3 = 2.375Y^3. %increase = ([3.375Y^3...

I can't seem to understand why lunar eclipses occur only twice a year and not monthly. I have looked up a lot of answers, but I don't understand. Thanks for the help.

I have to write a report on the Articles of Confederation and some of the problems with them. I have done some research, but I still need more info. Could you help? Check these sites. http://bensguide.gpo.gov/9-12/documents/articles/index.html http://www....

Neptune's largest satellite is named (Triton) and revolves in a ( ) orbit. Could someone help me fill in the second blank? Please help! Nevermind, I got that question wrong (I'm homeschooled and my computer program grades me) and later found out that the...

Tyrone has $60 and his sister has $135. Both get an allowance of $5 each week. Tyrone decides to save his entire allowance, but his sister spends all of hers each week plus an additional $10 each week. After how many weeks will they each have the same amo...

I am writing report on the novel The Time Machine, by H.G. Wells. I am supposed to write when the story takes place. I have searched through the book and the internet and can't find any hints as to what time frame the young scientist lived in. Please help...

Can someone help me with this I am very confused When managing a business, it is important to take inventory of where your money is spent. You have a monthly budget of $5,000. Refer to the table below and answer the questions that follow. Round your answe...

A dog searching for a bone walks 4.31 m south, then runs 8.93 m at an angle 22.0 north of east, and finally walks 10.0 m west. Find the magnitude of the dog's resultant displacement vector.

A dog searching for a bone walks 2.87 m south, then runs 22.5 m at an angle 30.5 north of east, and finally walks 5.91 m west. Find the direction of the dog's resultant displacement vector. Give your answer as an angle in degrees, with the angle measured...

A ball is thrown downward, with an initial speed of 8.09 m/s, from a height of 30.1 m. After what time interval does the ball strike the ground?

How do I "determine the mass percent of H2O in the hydrate Cr(NO3)3 * 9H2O to 3 significant figures"?

ok so here's the question- For the compound Ge[S(CH2)4 CH3]4, determine: a) the ratio, by number, of C atoms to H atoms b) the ratio, by mass, of Ge to S I know this can't be THAT hard...but I'm really not sure on how to get the ratio. for a would I just...

The most abundant molecule found in all types of cells is?

Question: "Calculate the theoretical yield of calcium carbonate of you react 2.55g of calcium chloride dihydrate with an excess amount of sodium carbonate." I got the molar mass of calcium chloride dihydrate which is 131.015 g/mol, but Im not sure how to...

What are the three main properties of a Conker shell ?

Why does sodium in phenolphthalein change color?

why do some combinations of ionic compounds form a precipitation while others do not

I am supposed to create my own country and I need to come up with a creative name for it. Any ideas?

how do test tubes relate to science??

science concept map!! test tubes matter oxygen please please please please HELP!!

When you drop a 0.36 kg apple, Earth exerts a force on it that accelerates it at 9.8 m/s^2 toward the earth's surface. According to Newton's third law, the apple must exert an equal but opposite force on Earth. If the mass of the earth 5.98x10^24 kg, what...

Given: g=9.81 m/s square. The parachute on a race car that weighs 8042 N opens at the end of a quarter-mile run when the car is traveling 35 m/s. What net retarding force must be supplied by the parachute to stop the car in a distance of 1020 m? Answer in...

I need to know what the difference is between a commonwealth (Puerto Rico) and a territory (Guam) of the United States. If anyone could help, that would be great!

I'm a little confused about making something possessive. For example, if I were to write America's history is fascinating. would that be correct, or would "Americas", or "Americas'" be right? Also, suppose you wanted to say that a dog belonged to Mrs. Nes...

What is the corrected radiocarbon age if the orginal radiocarbon age is 2100?

What is a vertex? for example, there is a triangle with the point of it circled. the book asks if it's a vertex. i looked it up on google and dictionary, but i don't get it. thanks for any help!

Name and describe two ways in which magnetism is used in technology related to medicine? Im really not sure of the answer to this, but i do know that magnetism is the force of attraction or repulsion.

10 of your friends (including you..so 10 altogether) are going to have a draw between all of you. Each person gives $10 (for a total of $100). There will be five, $20 draws. One per week for 5 weeks. For the first draw, every person gets a ticket. One tic...

How do multiply mixed numbers and fractions

What is the volume of the region enclosed by the planes x+z = 3, y=x, y=0, z=0, and the cylinder x²+y²=1? Is the answer 5 because I keep on getting different answers for this?

How would I simplify this problem using logs? (25/16) -3/2

Is the date "1901" a proper know?

Would this be a positive, nenegative or no correlation? The number of calories burned and the time spent exercinsing

i need to find a peer reviewed journal article pertaining to my chosen behavior modification project, which is to start running regularly. the article should be at least 3 pages in length and must include empirical research.

What is the difference between Mahayana and Theravada Buddhism?

For the function f(x)=10-4(x^2), find a formula for the lower sum obtained by dividing the interval [0,1] into n equal subintervals. Then take the limit as n->infinity to calculate the area under the curve over [0,1]. I only need help with the first part....

I really need help. Please help. Solve for x: log(subscript)3(3x+1)-log(subscript)3(x-1)=2

what is the function rule for input x 1,2,3,4,5 and output 3,2,0,-1,-2

what is the function rule for input x 1,2,3,4,5,6 and output y 1,3,5,7,9,11 Thank you very much!

I am studying for a final exam and in our review packet we have this question, which I am having trouble with: lim (x-->0) ((e^x)+x)^(1/x) I tried this problem two ways. The first was with L'Hopitals rule... lim(x-->0) (1/x)((e^x)+x)^(1/x-1) * (e^x+1) but...

How would you describe a bone cell?

How would you describe a muscle cell?

How would you describe how tissues form your heart?

We're doing a lab in my Calc II class and I'm stuck on this question. I tried to do it by looking at instructions for a similar question in the book, but it made me more confused. Here is the question and my work: Find the area of the region enclosed by t...

Can someone look over my work and tell me if my steps look correct? I'm trying to correct some problems that looked wrong. Instructions: Find the total areas between the given curves. 1. x= (y^3) and x=(y^2) on the interval [0,1] (integral from 0 to 1 of)...

How do you write (2x3)x5=30 without changing the number sequence?

I'm having trouble with the following problem: Find the volume of the solid generated by revolving the region about the given line. The region is in the first quadrant bounded above by the line y= sqrt 2, below by the curve y=secxtanx, and on the left by...

A professor gave us an assignment based on one of three websites. The website I chose has multiple pages, each with a title, but none of the pages have titles. When citing a fact or quotation from a certain page, should I use the page's title in the in-te...

Max, James, and Brett were playing basketball. One of them broke a window, and the other two saw him break it. Max said, "I am innocent." Jamess said, "Max and I are innocent." Brett said, "Max and James are both innocent." If only one of them is telling...

Given the sequence of bases in the sense strand of DNA shown below, please answer the following questions. 5'-ATGTTTCCCCAGAAGAGGTATGGGAAAAAGATTTGA-3' a. Show the sequence of bases in the messenger RNA encoded by this gene. I'm not sure what this means. I...

Express the integrals as the sum of partial fractions and evaluate the integral: (integral of) (x^2)dx/(x-1)(x^2 +2x+1) My work: The above integral is equal to x^2dx/(x+1)^2 (A/x-1) + (B/x+1) + (Cx+D)/(x+1)^2 = x^2 A(x+1)^2 + B(x-1)(x+1) + (Cx+d)(x-1) = x...

Perform long division on the integrand, write the proper fraction as a sum of partial fractions, and evaluate the integral: (integral of) 2y^4dy/y^3 - y^2 + y - 1 After long divison I get: (integral of)2ydy + 2(integral of)dy + (integral of) 2/y^3 - y^2 +...

For the following question, we need to find the length of the polar curve: r= 2/(1-cosx) from pi/2 </= x </= pi dr/dx= -2sinx/(1-cosx)^2 therefore the length would be expressed as follows: the integral from pi/2 to pi of (sqrt)[(2/(1-cos))^2 + (-2sinx/((1...

A car air bag requires 70. L of nitrogen gas to inflate properly. The following equation represents the production of nitrogen gas: 2NaNsubscript3 -> 2Na + 3Nsubscript2 The density of nitrogen gas is typically 1.16g/L at room temp. Calculate the number of...

What is the modifier of the prepostional phase and what kind of prepostional phrase is it? Adverb or Adjective? 1. Its invention in 1978 revolutionized technology. 2. The microwave oven was invented in 1946.

The phosphoric acid in a 100.00 mL sample of a cola drink was titrated with 0.1476 M NaOH. The first equivalence point was detected after 13.32 mL of base added, and the second equivalence point after 28.65 mL. Calculate the concentration of H2PO4- in mol...

Find the volume of the solid obtained by revolving the graph of y=x(sqrt(1-x^2)) over [0,1] about the y-axis. How do you write the integral?

How many electrons and how many protons are in the ion Cr6+?

what mass of sodium phosphate is required to make 250mL of 0.10mol/L solution?

How many electrons are transferred in the production of 6.06×10^−4 mol H2(g) from water?

Can you help me put the following events in order: -hitler declares austria part of germany -naie terrorize jewish on "kristallnacht -france and GB agree to defend Poland -hitler and stalin sign a friendship treaty -the leaders of GB, France, Italy and Ge...

Suppose r(x) = 8(x)^(1/2) represents revenue and c(x) = 2(x)^2 represents cost, with x measured in thousands of units. Is there a production level that maximizes profit? If so, what is it?

The Rental Depreciation Problem. The owner of a rental house can depreciate its value over a period of 27 ½ years, meaning that the value of the house declines at an even rate over that period of time until the value is $0. a. By what fraction does the va...

Yesterday someone posted my exact question, but I can't find the answer. What is area/perimeter of capital letters: I, U, and J? I know that area= lxw P= add up all the sides The area part is hard to figure

On grid paper I have a capital letter I three cubes across to make the top of letter I, three cubes in the middle, and three cubes across the bottom? So, how would I figure out the area?

The chart on the next page is an example of a quality control chart. Samples of parts and products are drawn from an assembly line and checked against engineering specifications. Write a short report describing the various features of the chart and the pe...

According to the data booklet Cu(NO3)2 and Sn(s) are spontaneous Cu2+ being a strong reducing agent and Sn(s) being a strong oxidizing agent but according this lab: d2l.adlc.ca/content/ADLC-Depts/ScienceSH/SCN3796-5cBl-08Feb10/chemistry_30/mm/m3/m3_l3_tes...

Data obtained from lab (neutralization): H2SO4: C =1.0mol/l V = 30 mL Initial temp. = 24.1 NaOH c= 1.0mol/L v= 50 mL initial temp. = 23.9 Final temp. of H2SO4 & NaOH = 32.9 Assume specific heat capacity of both these substance is equal to water's = 4.19 C...

how many polygon arrangements does a semi-regular tessellation have?

5x^2+4x+6=0, given the graph of y=5x^2+4x+6

Please check my answers. Identify each of the following as either assets, liabilities, or owner's equity. 1. Petty cash- Owner's Equity 2. Mortgage payable- Liabilities 3. Furniture- Assets 4. Owner's Capital- Owner's Equity 5. Food inventory- Assets 6. P...

Within a book on a desk there are billions of forces pushing and pulling on all the molecules. Why is it that these forces never by chance add up to a net force in one direction, causing the book to accelerate "spontaneously" across the desk?

A pump is installed in the basement of a 10-storey building in order to supply the occupants with water. Each storey is 3m high. How much pressure must the pump exert on the water so that the water reaches the 10th floor with a pressure of 400 kPa?

I have a quick question, If a ballplayer catches a ball 3.0s after throwing it vertically upward. With what speed did he throw it, and what height did it reach?

How do you write a number in expanded form?

What is the pH of the solution obtained when 125 mL of 0.614M NaOH is diluted to 16.0 L with water?

a. If a solution appears to be violet, what range of wavelength would you use for analysis of the solution? b. How about if the solution was blue-green?

A particular guitar string is supposed to vibrate at 220 , but it is measured to vibrate at 230 . By what percent should the tension in the string be changed to correct the frequency? I have been working for 7 hours of hw! Please help!

Objects on the moon's surface have an acceleration due to gravity one-sixth that on the earth's. What would the 40 kg boy weigh on the moon? (Round answer to nearest tenth.)

Using the procedure of comlpeting the square, write the equation x^2+y^2-6x+8y=0 in the form (x-h)^2+(y-k)^2=r^2. state the domain and range where(h,k) is the center of the circle and r is the radius

What is the effect of smoking near others?

A recipe calls for 4 1/2 cups of flour for 72 cookies. How many cups of flour would be needed for 48 cookies?

Describe the mistakes. 3 x 8 - 4 x 5 = 100

a building cast a 235 ft shadow along the ground. the angle of the sun's ray with the ground is 24 degrees. How tall is the building?

How do you find the mass of a solution if you have 1L of 2.5 M MgCl2. I have determined how many moles are present in MgCl2 which was 2.5 and how grams are present which came out to be 238.025g Now I'm asked "What is the mass of the solution and the mass...

H2SO4 +NaCO3 > Na2SO4 +Co2 +H2O if 150.0 g Of Sulfuric acids is spilled what is the minimum number of moles of sodium carbonate to complete this reaction?

Dispersion in a window pane. In the figure on the left, a beam of white light is incident at angle θ = 51° on a common window pane (shown in cross section). For the pane's type of glass, the index of refraction for visible light ranges from 1.528 at the b...

a chain pulls tangentially on a 33.4kg uniform cylindrical gear with tension of 70.1 N. the chain is attached along outside radius at 0.794m from the axis of rotation. starting from rest gear takes 1.59 s to reach rotational speed of 1.08 rev/s. what is t...

What value does Macbeth put on his soul in Act III, Scene I of "Macbeth" by Shakespeare.

What did people in Ancient Greece trade with other countries? What were the trade routes, what did they trade, and finally, what was the effect on Greece ?

A car is traveling at 70 mph skids 240 ft after it's breaks are suddenly applied. Assuming that the cars breaking system provides a constant deceleration, find that deceleration. How long did it take the car to stop?

Given the following set, select the statement below that is true. V = {a, e, i, o, u}

Given the following sets, select the statement below that is true. A = {l, a, t, e, r}, B = {l, a, t, e}, C = {t, a, l, e}, D = {e, a, t} B ⊂ C and C ⊆ A C ⊆ B and D ⊂ B D ⊂ A and A ⊂ D B ⊂ A and C ⊂ D D ⊆ A and A ⊂ C

Given the following set, select the statement below that is true. V = {a, e, i, o, u} s ∈ V o ∉ V e ∈ V V intersect Ø w ∈ V

Given these sets: A = {3, 4, 5, 6, 7} B = {6, 7, 8, 9} C = {2, 4, 6, 8} List the elements of this set A intersect(B∩C)

Given A = {1, 2, 3}, B = {3, 4, 5, 6,}, and C = {3, 5, 7}. Evaluate each set a) A ∩ B b) A U C c) B U C d) (A U B) ∩ C e) A U (B U C) f) (A ∩ B) ∩ C g) (A ∩ B) U C

Solve the following equation for t : 3/t + 2/m = 2

Write the following without negative exponents: (a^-1 + b^-1)^-1

Total tickets sold$1625. Adults $7,kids $3. Twice as many kids as adults bought tickets. How many adults and kid tickets were sold.

If you are getting a B in everything else in this class but you don't do any of the news item write ups(which are 9% of your grade, then will your final grade be a B? If not a B, then what will your final grade be?

Answers

The following answers were posted by visitors named Jenna.

But does the author write in this particular book what time frame the main character lived in?

Thank you very much, Ms. Sue. Does this sound like a good opening line for my report? The Time Machine, by H.G. Wells,is an American literature classic relating the tale of a young scientist who travels through time with the help of his invention, the tim...

so like if the ratio was 2:4 it would become 1:2?

you would use Calcium because its the limiting reactant? So... 40.078/131.015 = .305903 Then... 2.55g X .305903g Ca/1g = the theoretical yield?

yeah like how do they relate 2 science??

so it would be: (retarding force)(1020m)= (1/2)(8042N)(35 m/s) and the retarding force= 137.98?

Another way to do it would be 5.50 divided by 2 to find the price of one t-shirt, then that number times 5.

wow, that was simple! thanks so much!

Thank You Very Much!!! Very Much Appreciated!!!

figure out how many cards are in a deck {52} then take the number of cards in a deck and compare it to the numbers of cards in a four of a kind {4}

Wouldn't that be a decimal answer. Oh, and yes -3/2 is an exponent.

The base is 25/16.

I meant, is the date 1901 a proper noun?

This is the worst website ever it won't listen to you and it's no help about prefixes

I still keep getting 4. At this step: area= int (3-2y^2-y^2) dy = int (3(y^2-1) dy shouldn't it be int(3(1-y^2)? I did this: 3int(dy)-3int(y^2)dy= 3y- (3(y^3)/3) = 3y-(y^3) from 1 to -1... filling those in, I get 4. Am I still making a mistake?

This is what I done before I end up getting v=26.5887 and for some reason it's wrong =(. I not sure why though.

now i getting 3.878 and it still wrong...=-(

3.794 is wrong too sqrt(2(.2)(36))

got it! 11.879!!! Thanks didn't see the g on the .2....awesome!!!!

I need the same thing, but i can't find it. help!!!

(La pintura) envía el mensaje de que hay algo más profundo de la personalidad detrás de todo el mundo que en la superficie.

Is "in 1978" and adjective phrase then?

how do i solve for XXXX

okay so if the molar mass of Na3PO4 is 164. a multiply that by 0.1 and then multiply that by o.25 ??

An earthquake is a violent shaking of the Earth's crust that may cause destruction to buildings and results from the sudden release of tectonic stress along a fault line or from volcanic activity.

Search on the internet for more details about earthquakes.

ur welcome emilio

Yeah im confused! lol i just needed some help for info. its 2 years later after yall got the help now im needing it ha

jk...sorry i don't relly kno

A cubic piece of metal measures 6.50 on each edge. If the metal is nickel, whose density is 8.90 , what is the mass of the cube?

H=? q=2.426 kJ w=-6 kJ Therefore, E=-8

oops sorry.. did not mean to post this twice

-3x+6<21 -6 -6 -3x<15 /-3 /-3 x<-5

Thanks so much!! :)

4, but they're asking what's the mistake that was made in the problem. Because 100 isn't the correct answer.. I'm really stumped on this. :(

I still don't get it..?

To find the moles of solvent present, would you divide the mass the solvent by 18.02g/mol? I am given this: MM=18.02g/mol

Sorry the 18.02 is for water.

Ok now I have to find the mole fraction of the solvent. I know the formula, which is the moles of a substance/ total moles of solution. Is the moles of the substance the number we just obtained? And which is the "total" moles of solution?

That's really easy. you do 250/100 which is 2.5 then, you multiply that to the mass of KCl and get 90g like what the other person said.

Thanks (:. What famous sign was first erected in 1923 in the state of California?

Hollywood sign. You can just look these up on Google :D There is a lot of answers

Help me get examples of what would happen if there were fiel trips everyday for school for free. Help me come up what bad stuff would happen

Like what bad stuff would happen to the school teachers and people

ohhh! thank you thank you thank you! soooooo much i really need it badly :)

Yeah, I am having trouble interpreting it. I think The first resonant frequency fits well within a frequency range where the ear is maximally sensitive makes the most sense

Okay I got the second pH w/HCl and it is 2.23. but still can't find the pH of both of the ones w/HC2H3O2. Please help?

'How about painting the wall a new color?' is addressing one person asking a question to a separate individual. 'How about we paint the wall a new color? is referring to the person asking the question who would like to help the individual with the paintin...

Well, let's go over it. 'A' is the plan that can be followed and used for a long period of time. 'B' is the plan that you have to go to a lot of stores to find one item. It would be tiring after a while. 'C' is the plan that in 1 week you lose, let's say...

All of your points sound really good so far. I have another factor that you could add. E. Most likely to develop diabetes due to the result of not eating healthy

'C' is the best answer out of all of them. I'd make 'B' a correct answer as well. Both of the liquids are healthy to drink.

The anser is 7,555,131 its sooo easy

ok any body else thatcould anser this cuz i don't want to do my homework

Thanks guys that really helped me on my homework :D im in 5th grade

Yes, thank you for thw awswers to my homework.

I have the same problem.

United Nations Environment Program Greenpeace

I don't understand.. could you give a better answer?

the ay was supposed to be a square root sign..

No wait let me re type the question: y5/3 is under the square root sign

I have to write from specific to general in my concluding paragraph and can't have any contractions, no 1st person or second person , no rhetorical questions , no in conclusion, in summary, etc

Thank u so much:)

Thanks! Are you from connections?

Nevermind...Would you mind helping me with a few more?

Ok! A swimmer would like to his time in a 100 yard freestyle race. After talking to his coach, he intends to focus on one critical element at the begining of the race. The swimmer will try to improve his 100 yard freestyle time by improving his power of a...

Ok! Thanks sooo much I think that's all for now!

i am not sure what it says.

Are they going to the theatre?

Have you seen the Les Miserables play?

Is it "Are you going to the theatre?"

Is Les Miserables an unknown play?

Je vais au theatre?

The choices are: 25 degrees 90 degrees 98 degrees 172 degrees

Do you multiply .25 x 440 to get the answer? (25 degrees)

I know that it is asking me something about sailing but I'm not sure exactly what it's asking.

so you would get 2m/s for both however that is not correct

Well we learn about the Earth and DNA and plants and all of the components of a plant we also learn about Animals.

Helium has an atomic number of two.what can be inferred about helium from this fact?

You're incorrect.

hahah sorry. No one was answering so I thought id try a different name

did you ever figure out the answer? I'm doing this problem now and i can't figure it out

did you ever figure out the answer? I'm doing this problem now and i can't figure it out

1.) a. 2.) b. 3.) b. 4.) a. 5.) c.

No Ms.Sue there isn't ....

What is the answer ??

No. So the answer is B?

Is it 16 + 2(pi)