Saturday

August 2, 2014

August 2, 2014

Total # Posts: 1,727

**Science**

The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA replication D)protein copies can be be made directly from the DNA I'm pretty sure the answer is ...

**Chemistry**

0.88 g CO2

**Chemistry**

0.88 g CO2

**world history**

Which of the following statements is true of the Ice Age that began 150,000 years ago? A. Many humans enjoyed high levels of nutrition and long days of leisure. A is the answer

**world history**

men go hunting women gathering

**science**

what would the astronauts weight be on the lunar surface?

**science**

what would the astronauts mass be on the lunar surface?

**science**

how much less is the gravity on the lunar surface than on earth?

**chemistry**

in a exothermic reaction temperature changed from 30 to 43, reasons why I got those answers

**Math 113**

Verify tanxsin2x = 2-2cos^2x

**Algebra**

how do i solve this please help 5 < x – 2 < 11

**math**

39+42

**English- Scarlet Letter**

Hester thought there was three changes that need to be made before young women were able to take there stand next to men as equals. What are the three chnges she was referring to? Relate this philosophy to today's society. Use specific examples. Which of these three steps ...

**Science (urgent)**

I have 2 biology questions I really need help with, they are due tommorow and I don't know if I'm right. 1)As an energy carrier, ATP differs from NADPH in that: a)ATP carries less energy than NADPH. b)ATP transfers energy through redox reactions whereas NADPH uses phos...

**COLLEGE**

THANKS! :D I'm going to tell them I won't give up on my dreams but I hate it how they're always telling me to be a doctor or I'm going to have a bad career and won't live a good life

**COLLEGE**

My parents say I should be a doctor but I want to be what I want. They're forcing me to be one cause the rest of my family is. WHAT SHOULD I DO? D:

**in-text citations**

If I have an internet article, how would I do an MLA in-text citation of the article. There's no page number. Would I just put the author's last name only in parentheses? I've googled it, but I couldn't find anything,

**Physics**

Betty Bodycheck (mB = 55.1 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 41.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° c...

**Science (urgent)**

K thank you very much and actually that's how the question was written which threw me off completely. (I think it stands for chemical reaction, it was random to see though). Thank you for your help though. I understand it much better now!

**Science (urgent)**

Hi I really need to know this I've asked a couple times but haven't gotten an answer yet. In the reaction X + Y ® Z, Z is the A) substrate. B) product. C) enzyme. D) carbon molecule.

**Science**

In the reaction X+Y (R) Z, Z is the A)Substrate B)Product C)Enzyme D)Carbon Molecule

**calculus**

A rocket is fired into the air, and its height in meters at any given time t can be calculated using the formula h(t) = 1600 + 4.9t^2. Find the maximum height of the rocket and the time at which it occurs.

**Phycics **

Determine the resultant at 21N east and 85N south

**Science**

Imagine you find a piece of wood on the beach. The next day, the wood is 100 meters farther north. How might it have moved? Your answer should refer to currents

**math**

john had 15 dollars more than half of what jack had. john had 86 dollars. how much did jack have?

**Math/Statistics**

STATISTICS PLEASE HELP!!!!! I am sorry this is jy second time posting, but I really need help. I have tried contacting my teacher and classmates with no luck. Please just steer me in the right direction!: Suppose cars arrive at Burger King's drive-through at the rate of 20...

**Statistics**

Suppose cars arrive at Burger King's drive-through at the rate of 20 cars every hour between 12:00 noon and 1:00 pm. A random sample of 40 one-hour periods between 12:00 noon and 1:00 pm is selected and has 22.1 as the sample mean number of cars arriving. (a) Why is the sa...

**physics**

i think this is a pre-calculus question

**Calculus**

If the tangent line to y = f(x) at (4, 3) passes through the point (0, 2), find f(4) and f'(4).

**Calculus**

If the tangent line to y = f(x) at (4, 3) passes through the point (0, 2), find f(4) and f'(4).

**english**

Oops I didn't mean to use that sentence i was just using it as guidance, anyways is the rest ok ?

**english**

hi can you please proof read this and make sure it sounds alright. thanks. Playboy of the Western World is a novel that invoked hostility from nationalist crowds in Dublin. Throughout the book there were several occasions where violent reactions could have occurred as well. Th...

**English **

Yep I have read it, I would say that's the most significant characteristic for violent reactions, I'm having trouble locating more in the book besides that. Thanks

**English **

In Playboy of the Western World by J.M. Synge what are some characteristics or moments that would invoke a violent reaction in todays culture?

**ten commandmant**

Sure, but chaos is total freedom

**ten commandmant**

I don't know what you mean. True freedom means a lack of rules and regulations. The Ten commandments restrict your freedoms by telling you the way you are supposed to live. The morality involved is up to your judgement, but their intention is to make you live by certain ru...

**Physics**

The braking distance of a car is 29m. If the speed of the car is increased by 45%, what is the car's new braking distance? Assume the acceleration of the car is constant and independent of its initial speed

**geometry**

Lines AB and CD are parallel. If the measure of Y equals 56°, what is the measure of Z?

**math**

.5

**English (Urgent)**

Hi I'm writing an essay about No-No Boy. Does the following sentence sound alright, if not how do I make it sound better. I need help soon please! Two significant problems in this novel for him is overcoming self blame along with dealing with culturally assimilating himsel...

**English**

Hi I'm writing an essay about No-No Boy. Does the following sentence sound alright, if not how do I make it sound better. Two significant problems in this novel for him is overcoming self blame along with dealing with culturally assimilating himself to America.

**English**

Hi, I have to write a 2 page paper about the book No-No Boy, rather than give a plot summary the teacher wants us to discuss important themes. What are some possible topics I could write about and how do I not make the paper turn into a plot summary? Thanks.

**social studies**

number 2 is vladimir

**pre algebra pizzazz**

2x+3y=6

**math**

I Don't know, it was our teacher who typed the questions.

**math**

Given the formula X=x to the power of 2 + y to the power of 2 can you find X if x=9,y=negative 4,z=1/2?

**Calc**

Find the constant of proportionality for the following situation: "y is jointly proportional to x and z and inversely proportional to w." w=2, x=5, y=4, and z=9 So i think the equation is y=xz/w But what is the constant of proportionalit supposed to mean?

**Math**

A person can have 1 of 4 blood types: A, B, AB, or O. A Student determined that the probability that a randomly selected person has blood type O. What is wrong with his reasoning?

**Microeconomics**

yes

**science**

How many hydrogen atoms are in a molecule of C8H10N4O2? wouldnt it just be 10?

**Science **

How many hydrogen atoms are in a molecule of C8H10N4O2? wouldnt it just be 10?

**math**

One day we decided to drive from Town A to Town D. In order to get there we had to drive through Town B and then Town C. It is 10 miles farther from Town A to Town B than it is from Town B to C. IT is 10 miles farther from Town B to Town C than it is from Town C to Town D. It ...

**English**

Oh alright, should I ask someone specific or just keep checking back?

**English**

Alright thank you. I was wondering does the title of the book have to be underlined or in quotes and is the following a good way to start my essay? America is in the Heart is a classic autobiography that truly exhibits the struggle of immigrants that ventured to the United Sta...

**English**

Hi, I have to write a short reaction paper (2 pages) about the book America is in the Hearth by Carlos Bulosan. I have to discuss an important theme and provide examples. I was thinking about comparing his life in the Philippines and his life in America. Even though he had hig...

**chem (science)**

Which of the following pairs of elements are likely to form ionic compounds: A) helium and oxygen B) magnesium and chlorine C) chlorine and bromine D) potassium and sulfur E) sodium and potassium F) nitrogen and oxygen I believe the answer is d and f Would appreciate a verific...

**science**

Which of the following pairs of elements are likely to form ionic compounds: A) helium and oxygen B) magnesium and chlorine C) chlorine and bromine D) potassium and sulfur E) sodium and potassium F) nitrogen and oxygen I believe the answer is d and f

**algebra**

For all positive integers x, let x▲ be defined to be (x-1)(x+1). Which of the following is equal to 6▲ - 5▲ ? Does this mean I'm supposed to multiply the 6 and the 5 to (x^2-1) and subtract them from each other?

**chemistry**

A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. Explain the chemical process that occurred in hi...

**chem**

A block of metal has a width of 3.2cm, a length of 17.1cm, and height of 3.6 cm. Its mass is 1.3 kg. Calculate the density of the metal.

**chem**

The speed of light is 3.00 times 10^8~m/s. How fast is this in miles per hour (miles/h)? Use the conversion 1{mile} = 1610{m}.

**chem**

The speed of light is \rm 3.00\times 10^8~m/s. How fast is this in miles per hour (\rm miles/h)? Use the conversion 1 \;{\rm mile} = 1610\; {\rm m}.

**PreCal**

Alison, Could would you tell me if the problem listed below is correct: (4+5i)(4-5i)= 16+-i

**PreCal**

Write the expression (7 – 7i) + (–8 – 2i) in the form a + bi

**literature**

a villnelle is?

**Statistics - Probability**

Yes you definitely do need 1-0.93. Psydag, you are correct!

**college chemistry**

thank DrBob!! Your the best!! :)

**college chemistry**

Why is iodine important to biological tissues such as the thyroid gland? Give a prediction for why iodine is added to the table salt supply. ** I have no idea! :(

** Math**

i dont know how to solve this, i'm so lost. determine the exact value of c cot( 4c- pie/4) + tan ( 2c + pie/4)= 0 please help me!!! THANK YIU

**Chemistry / Elements**

if fluoride is considered toxic, then why do they put it in tooth paste and municipal drinking water supplies?

**calculus**

actually, as i was taught that using 1/3 as a decimal should just be .3 too & i see what tonya did! haha .8x comes from the addition of .3x+.5x. simple addition...

**american history**

d is the answer

**science**

Sarah needs to replace part of the metal railing on her deck and wants the new railing to match the existing railing. However, she does not know what metal the railing is made from. Which is a property that she can use to identify the metal?

**grammar**

i am having a hard time figuring out the adverbs and adjectives in my paragraph, can anyone help me with this? A few years ago, I had filled out an application for a credit card from capital one. I was accetped and given a spending limit of 300 dollars. I maxed out that limit ...

**Chemistry**

how would I make 5.5 liters of a 2.5 molar HCl solution from a 10.5 molar HCl stock solution?

**chemistry**

I dont know

**Greek**

The Greek base which means to burn is Cla- Path- Sat- Cau(s)-

**Calculus AB**

That makes me feel so much better. It must have been an error on the teacher's part then. Thank you very much.

**Calculus AB**

The limit as x approaches infinity of (1+1/x)^x. I tried this twice and I got an answer of e both times, but the answer that my teacher read off in class was not e. Please help.

**algebra**

a cardboard box which has a volume of 60 cubic inches and has the dimensions of (x-1) (x-6) (x-2) what is the lenght, width and height of the box

**For**

What are the 3 base languages in Europe? I know there's Slavic, Romance which is Italian and French, but I can't remember the last one. Help!

**Math**

The moon has a surface area of approximately 14,650,000 mi squared. Estimate its radius to the nearest mile.

**math**

Simplify 5(y + 1)

**chemistry**

Identify the acid/conjugate base and base/conjugate acid pairs for the following reactions H2CO3(aq) + H2O(l) <===> H3O+(aq) + HCO3 -(aq) C5H5N(aq) + H2O(l) <===> C5H5NH+(aq) + OH-(aq

**Chemistry**

# Electron Pairs # Lone Pairs Electronic Geometry Molecular Geometry Lewis Structure Sketch of Shape I need to do the above things for SBr6 and BrCl5. If anybody can help that would be great!

**algebra**

Minimum Wage: The table shows minmum wage for three different years Year 1940 1968 1997 Wage ($) 0.25 1.60 5.15 (a) Make a scatterplot of the data in the viewing rectangle [1930, 2010, 10] by [0, 6, 1] (b) Find a quadratic function given by f(x) = a(x – h )^2 + k that mod...

**Chemistry**

Construct the data chart and the pH curve for the titration of 25 mL of 0.1 M CH3COOH with 0.1M NaOH. Add the titrant 1 mL at a time and calculate the pH after each addition

**chemistry**

balance the redox equations: IO3-(aq) -> I2(aq) and I-(aq) -> I2(aq) balance the redox equation: S2O3(-2) -> S4O2(2-) and I3- -> I-

**Science**

Both gases will have approximately the same density at these conditions. When the volume is held constant, raising the temperature will increase the density of both samples.

**Calculus AB (AP)**

Hi, I have a calculus test tomorrow and I understand how to complete all of the problems, but I am unsure behind the reasoning of taking two derivatives. Can someone please explain the following: 1. g(x)=e^(f(x)) g'(x)=e^(f(x))f'(x) 2. f(x)=Integral from 0 to 3x of the...

**chemistry**

ferric hydroxide is insoluble same with manganese hydroxide

**chemistry**

the reaction with ammonium hydroxide with the following metals: Fe3+ Mn2+

**chemistry**

what is the reaction with sodium hydroxide for the following metals: Al3+ Fe3+ Mn2+ Ni2+ Zn2+

**Math**

how would I make a tslly table for the number of students in th third, fourth, and fifth-grade classes: 26, 25, 27, 27, 26,28,27

**math**

please answer i need it by next class...

**math**

A line segment has an endpoint at (3,2). If the midpoint of the line segment is (6.-2), what are the coordinates of the point at the other end of the line segment?

**Math **

Can a golden rectangle have a shorter base than height? I'm not sure how to answer this can you please help :)

**Chemistry**

I can't figure out how to solve this problem: The Ka for hydroflouric acid is 4.5 *10^-4 at 298K. Calculate the amount of sold NaF that is required to prepare a 250. mL acidic buffer with pH = 2.75. The initial molarity of hydroflouric acid is .250M but you have only 75mL....

**Chemistry**

The Ka for hydroflouric acid is 4.5 *10^-4 at 298K. Calculate the amount of sold NaF that is required toprepare a 250. mL acidic buffer with pH = 2.75. The inital molarity of hydroflouric acid is .250M but you have only 75mL.

**Speech Class**

Thank you mam :)

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