Friday

September 19, 2014

September 19, 2014

Number of results: 111,834

**maths**

Using the fitted regression model, estimate the average change in cry time for infants with severe pain versus those without severe pain, holding group constant. Provide a 95% confidence interval for this estimate.
*January 18, 2013 by umer*

**statistics**

Using the fitted regression model, estimate the average change in cry time for infants with severe pain versus those without severe pain, holding group constant. Provide a 95% confidence interval for this estimate
*January 19, 2013 by laura*

**Teachers Aide/Language and other Barriers**

14. As a teacher aide in a multicultural classroom, you should realize that A. your teacher is the best resource for information on diversity-related information. B. it’s up to you to help improve children’s attitudes today, so we can have a better world tomorrow. C. ...
*September 27, 2010 by AspiringTeacherandMotherofFour*

**Math**

Choose the equation of a line that is parallel to y = 3x - 2 and passes through the point (-1,-6). y = 3x + 3 y = 3x - 3 y = (-1/3)x + 19/3 y = (-1/3)x - 19/3 *i think it's the last one! The slope must be 3. That is the "m" term in the form y = m x + b So the correct answer ...
*November 7, 2006 by Francheska*

**math correction**

can someone correct this problem for me thanks A group of 7 workers decide to send a delegation fo 2 to their superviosr to discuss their grievances. a) how many delegations are possible? my answer: 21 b)If it is decided that a particular worker must be in the delegation, how ...
*July 6, 2007 by student*

**english..... please help me again.**

please help me on my exam. to make good answer enough.please correct my english and answer if it is relevant to the question. thanks alot. please help me if you can give or add more on my answers. question 2.“Spoken language was the first form of communication between human ...
*August 18, 2011 by jessie*

**english..pls. ms. sue help me**

please help me on my exam. to make good answer enough.please correct my english and answer if it is relevant to the question. thanks alot. please help me if you can give or add more on my answers. question 2.“Spoken language was the first form of communication between human ...
*August 18, 2011 by jessie*

**math**

Roberto is an employee of a store and receives 20% discount off all items in the store. During a sale, the price of a jacket is reduced by $15. Roberto will receive both his 20% discount and the $15 off. Which is better for Roberto, to take the 20% discount first and then ...
*March 16, 2011 by anonymous*

**Calculus**

let f(x)=x^3(e^-x) Answer using calculus, use graphing calculator only to check work. a) Find the local and global extrema of f. b) Find the intervals where f is increasing/decreasing. c) Find the inflection points of f. d) Find the intervals where f is concave up/down. e) ...
*April 17, 2011 by Janet*

**Movement and Music**

Can you please check my semester exam before I turn it in? 1. Children who do poorly in school are primarily ______ learners. a. Auditory b. Kinesthetic c. Spatial d. visual My answer: c 2. A movement program that emphasized divergent problem solving, discovery, and self-...
*February 7, 2013 by Cyn*

**Statistics**

Suppose the U.S. president wants an estimate of the proportion of the population who support his current policy toward revisions in the Social Security system. The president wants the estimate to be within 0.028 of the true proportion. Assume a 99 percent level of confidence. ...
*March 31, 2013 by Adam Dane*

**Statistics**

In the quiz in Exercises 1 and 2, the grading scheme is as follows: each right answer is awarded 5 points, and 1 point is taken off for each wrong answer. Recall that the quiz consists of 10 questions, and that in the class, the average number of right answers is 6.2 and the ...
*March 7, 2013 by Daniel*

**STAT1**

In the quiz in Exercises 1 and 2, the grading scheme is as follows: each right answer is awarded 5 points, and 1 point is taken off for each wrong answer. Recall that the quiz consists of 10 questions, and that in the class, the average number of right answers is 6.2 and the ...
*March 12, 2013 by HELPPPPP*

**law and ethics in med**

please check my answer thanks :) The state would most likley invoke what if a child is at risk for abuse or neglect. my answer is... Parens patriae
*November 17, 2007 by Anonymous*

**Agility training**

Please check my answer thanks :) Which one of the following obstacles may be part of a Jumpers Class? A. A-frames B. Weave poles C. Seesaws D. Dog walks My answer is B
*January 13, 2009 by Mallie*

**biology**

The light reaction of photosynthesis is very similar to" a. the electron transport chain b. the TCA cycle c. Beta-oxidation I think the answer is A. Can someone confirm my answer
*February 11, 2009 by Anonymous*

**poetry**

In the poem "HOW I LEARNED ENGLISH"by Gregory Djanikian. Is there any suspense? If so when does it occur and why? Answer. yes, when the narrator got hit with the baseball on his head and fell on the floor.Is it correct what to answer for why?
*April 18, 2009 by john*

**social studies**

In Paraguay, what type of money do they have/use and what are some facts about their culture? PLEASE ANSWER, SOMEONE! But only if you KNOW the correct answer or think you know!
*September 21, 2009 by Danielle*

**Math**

Perform the indicated operation by hand. Show or explain your steps. 17.525 ÷ 25? Am I supposed to move the decimal over one? If I do then the answer is 7.01, if I don't then the answer is 0.701. I am confused.
*October 17, 2009 by Anonymous*

**Chemistry**

2KClO3 --> 2KCl + 3O2 What mass of O2 can be made from heating 125 g of KClO3? I know that the answer is 49 g O2 but I keep getting a completely different answer, can anyone show me what I'm doing wrong? Please & Thank you
*March 2, 2010 by Ana*

**Algebra 2**

Solve the following systems of equations graphically. Please state your answer as an ordered pair (x,y). (Do not put spaces between any part of your answer, or it will not be graded as correct.)
*March 29, 2010 by Quita*

**Geography check**

I have to answer the question this african country is a world leader in coffee and cacao exports. The answer is Cote d'Ivore or Ivory Coast, correct?
*February 18, 2011 by Alyonka*

**Pre-Calc**

Use the fundamental identities and appropriate algebraic operations to simplify the expression. cosx / (1+sinx) Answer: secx Can someone please assist as to how I get to the answer?
*April 28, 2011 by Lizette*

**Algebra 2**

Exponential Notation Simplify. (-2)^0-(-2)^3-(-2)^-1+(-2)^4-(-2)^-2 I tried solving this problem a few times and kept getting random answers. The answer in the book says that it is 25 1/4 I do not understand how you get that answer. Thanks For Your Help
*September 11, 2011 by Ann*

**Chemistry 1**

What answer should be reported, with the correct number of significant figures, for the following calculation: (965.43 x 3.91) + 9413.4136 I got 13189 as an answer. Can someone let me know if this is right?
*September 17, 2011 by James*

**Chemistry 1**

What answer should be reported, with the correct number of significant figures, for the following calculation: (965.43 x 3.91) + 9413.4136 I got 13189 as an answer. Can someone let me know if this is right?
*September 17, 2011 by James*

**Astronomy-HELP PLEASE!!!!!**

STILL HAVE NOT GOTTEN AN ANSWER FOR THIS!! If the Hubble parameter is found to be smaller than we think it is, how would this change the measured age of the universe? justify your answer
*December 5, 2011 by Amy*

**chemistry**

Discuss possible solutions to the reduced supply of light sweet crude oil. I have no idea to answer this question. Please advise me on how to answer it. Thanks in advance
*March 13, 2012 by Ruth*

**Science 7R - HW Qs. Check **

14. Which muscle is responsible for bending the elbow joint? a) masseter b) trapezius (it can't be this answer cuz that's is the back) c) triceps d) biceps My Answer (and also think) - C am i correct????
*May 7, 2012 by Laruen *

**math**

Determine the comparable interest rate for a $50,000 loan when the quoted information is 11.8% + 0.5 pt + $300. (Round your answer to two decimal places.) 1 % i came up with the answer 8905%
*August 25, 2012 by Anonymous*

**5th grade math**

What fraction of a dollar is shown by coins (2 quarters, 1 dime, and 5 nickels)? I got 80/100 equals 8/10. Is 8/10 the correct answer? If not can you show me how to get the right answer?
*December 15, 2013 by leon*

**Physics- check answer please**

1. A vibrating point on a spring travels 60 mm during three cycles. What is the amplitude of the vibration? a) 0.05 mm b) 5.0 mm c) 15.mm d) 20.mm e) 180 mm my answer: I got 10 mm but it is not listed as an option
*May 2, 2014 by Liz*

**math,correction**

is this correct? simplify: ((1+(2)/(3))/((2+(1)/(2)) My answer: (2)/(3) assuming that 2/3 and 1/2 are separate fractions, 8/3 x 5/2 40/6 20/3 hmm.. perhaps you need to check your arithmetic. unless i'm wrong, which wouldn't be surprising It is hard to read because the ()'s are...
*April 20, 2007 by jasmine20*

**Psychiatry**

what is the umemployment rate among psychiatrists? I searched on this, and found nothing. I suspect there are no statistics being kept. If you find the answer, please post it and the source, I find this question intriguing. Thanks.
*September 1, 2006 by Karen*

**Algebra 1**

find slope 2x-20y+18=0 I've been braking my head and I just can't find the solution. Can you please help me. I would really appreciate your help. Thank you so very much. I now it's m= something, but I don't know what the answer is. Thanks, again!
*January 2, 2011 by Esther*

**Algebra 1**

find slope 2x-20y+18=0 I've been braking my head and I just can't find the solution. Can you please help me. I would really appreciate your help. Thank you so very much. I now it's m= something, but I don't know what the answer is. Thanks, again!
*January 2, 2011 by Esther*

**Algebra 1**

find slope 2x-20y+18=0 I've been braking my head and I just can't find the solution. Can you please help me. I would really appreciate your help. Thank you so very much. I now it's m= something, but I don't know what the answer is. Thanks, again!
*January 2, 2011 by Esther*

**year 8 maths**

Find the amount of the following foreign currencies (to 2 decimal places) that can be bought with 250 Singapore dollars. The sterling pound There is a chart and the pound sells at 2,552,0 for 1 Singapore dollar. The pound is bought at 2,578.0. I did 2,552.0 times 250 and got ...
*December 11, 2009 by Maria Chiara*

**Math 11**

I need help on this math problem. The width of a certain painting is 5cm less than twice the length. The length of the diagonal distance across the painting is 107cm. Find the length and width. Round your answer to 2 decimal places. How should I set up for this problem? I was ...
*January 12, 2012 by Need Help*

**QUOTATION MARKS**

1.Which of the following is one reason to use quotation marks in a sentence? to show you have used someone’s exact words in your paper and the quote is under four lines to mark an indirect quote to show paraphrased information you borrowed from a source to mark a quote of ...
*April 27, 2010 by christopher*

**Help Please**

Help to solve this 1/2 (3g-2) = g/6 nevermind I was missing a bracket in the solution. multiply both sides by 2 This gives 3g-2=g/3 now cross multiply to get 9g-6=g now add a -g to both sides and +6 to both sides. g=3/4
*October 24, 2006 by Confused*

**Calculus**

Tried this problem severeal ways. Get a different answer every time, but it is in the same ballpark. Any help would be much appreciated. How many zeros are at the end of the product of the first fifty positive integers?
*October 24, 2007 by Matt*

**english**

I have to write a college essay but I don't know how to begin it the prompt is who has been the most influentail people in my life and the answer is my parents so what's a good first sentence I want it to be catchy and let the reader be interested fast thanks:)
*January 13, 2010 by morgan*

**calculus**

This problem has two parts but I can only see this so far. I probably over thinking..what is this asking for? How do I answer it? To evaluate lim x→ infinity sqrt(x^2 + 4) *first consider that as x becomes infinitely large x^2+4 -> __?__
*September 12, 2012 by maura*

**MATH!!**

Andy, Barbara and Chrisy play a game. Their probabilities of winning are 1/2, 1/3, and 1/6 respectively. What is the probability that each wins exatly one of the first three games played? Express your answer as a common fraction.
*April 2, 2013 by shaun*

**Chemistry**

The half-life for the first-order conversion of A to B is 56.5 hours. How long does it take for the concentration of A to decrease to 10.0% of its original amount? Our professor has given us the answer - 188hr but I am not entirely sure how he got it.
*February 23, 2014 by Kristen*

**Chemistry**

Balance the reaction of plumbate ions and hydrochlorite ions: Pb(OH)42-(aq) + ClO-(aq) → PbO2(s) + Cl- I put: Pb(OH)3-(aq) + ClO-(aq) → PbO2(s) + Cl-(aq) + H2O(l) + OH-(aq) It said: The reaction described in your answer is not balanced. One or more of your ...
*June 21, 2013 by Sara*

**Stats Anyone?**

The first-year retention rate is the percentage of entering freshman at a given college who return to that same college for their sophomore year. Many colleges use the first-year retention rate as one measure of their quality. Suppose that the first-year retention rate at a ...
*October 28, 2009 by CM*

**chemistry**

90Sr is one of the harmful radionuclides resulting from nuclear fission explosions. It decays by a first-order process with a half-life of 28 years. How many years would it take for 99.99% of a given sample released in the atmosphere to disintegrate? Answer in units of years. ...
*April 29, 2010 by omar*

**math**

What is the line of thought or sequence of thought for solving simple algebraic expressions? When I'm asked to solve the expression (5k)k^3....first I check with my list of exponent rules, and there are always a few that could be used to solve the expression.I just dont know ...
*May 12, 2010 by Cliff*

**Alg. - please help**

Can someone please answer my questions below on my first post?? please
*August 27, 2013 by Cassie*

**overview of teaching techniques**

which of the following statements is a good technique to use when tutoring a student? (a)''the next problem is easy.you should be able to get it.'' (b)''this next problem is hard,but lets see if you can get it.''(my answer) (c)''johney and erica can do these problems,why cant ...
*August 25, 2011 by susue*

**Office Management**

One taxicab charges 75 cents for the first quarter-mile and 15 cents for each additional mile. The competing taxi company charges $1.00 for the first quarter-mile and 10 cents for each additional mile. 1. what distance would produce the same fare for the two taxi companies? 2...
*February 17, 2011 by sandra *

**8th grade math**

Your uncle is three years older than your aunt. The product of their ages is 3190. What are their ages? I know the answer is 55 and 58. But I can't come up with the correct formula or equation to get the answer. I've tried 3(A+3)=3190. It doesn't come up with the right answer ...
*February 7, 2008 by KL*

**Algebra II**

Hat size are determined by the measuring the circumference of the head in either inches or centimeters. Use ratio and proportion to complete the following table. Hat size head circum head circum (~1/2 inch) (~centimeter) 7 3/8 23 1/5 59 ? 22 4/5 ? (For the first answer box ...
*October 13, 2010 by Daniel*

**statistics**

7. In a certain survey, 30% of those questioned are given an incentive to complete the survey. Of those who receive incentives, 80% completed the survey. Of those who do not receive incentives, 25% completed the survey. a. Find the probability of getting incentives for those ...
*January 23, 2008 by stats-help*

**Physics**

Hello recently I was asked to find the time it takes a satalite that is geocentric (that always stays above the same exact spot of the earth) so... I was given the radius of 61 earth radius or simply 3.89 E 6 m mass of earth what G equals and have to use Newtons law of ...
*May 7, 2009 by Physics*

**grammar**

Dangling Modifiers If your baby does not like cold apple juice, it should be heated. Your answer: 1. Dangling Modifiers When they are fresh, eating oranges can often keep away the cold virus. Your answer: 2. Predication Our plans for tomorrow should begin today. Your answer: 3...
*September 23, 2007 by Dianna*

**Physics**

A 10 kg block sits on a flat surface whose μs=0.60 and whose μk is 0.40 a. What horizontal force is required to get the block move? b.If we continue to apply the same force as in part a. what will the blocks acceleration be? In the answer: force=.6*mg to move net ...
*August 26, 2012 by Lianne*

**Accounting**

If Department H had 600 units, 60% completed, in process at the beginning of the period, 8,000 units were completed during the period, and 500 units were 30% completed at the end of the period, what was the number of equivalent units of production for the period if the first-...
*June 30, 2013 by Anonymous*

**math**

The corrosive effects of various soils on coated and uncoated steel pipe was tested by using a dependent sampling plan. The data collected are summarized below, where d is the amount of corrosion on the coated portion subtracted from the amount of corrosion on the uncoated ...
*June 25, 2013 by tracy10*

**physics**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
*October 14, 2013 by Anonymous*

**physics **

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
*October 14, 2013 by Anonymous*

**physics **

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
*October 14, 2013 by Anonymous*

**calculus**

consider the function f(x)= x^2/4 -6 Rn is the Riemann sum where the sample points are chosen to be the right-hand endpoints of each sub-interval. Calculate Rn for f(x)= x^2/4 -6 on the interval [0,4] and write your answer as a function of n without any summation signs. Rn= ? ...
*November 30, 2006 by amanda*

**Chemistry please check**

1. All of the naturally occurring radioactive decay series end when the radioactive elements have decayed to bismuth (Bi) hydrogen (H) lead (Pb) uranium (U) answer: Uranium (U) 2. This type of radiation can easily pass through a human. gamma ultra-violet beta alpha answer: ...
*February 15, 2008 by Mary*

**geometry**

How much more pizza is in a 12-in. diameter pizza than an 8-in. diameter pizza? Round your answer to the nearest hundredth. Be sure to show all work and label your answer. TWO points for the work...TWO points for the corrrect answer
*May 4, 2013 by Becky*

**Math Riddle**

How many two-digit numbers are multiples of 3 and also factors of 81? 3x=9 so try x=1,2,3,4 and see. I have been given a riddle that has driven me mad ... but worse, once given the answer. I just became baffled. Can anyone please explain why 487 is the answer to this riddle. i...
*November 19, 2006 by Nini*

**basic geometric**

a would like to get someone too help me with these math problem. Two angles of a triangle are 40 degrees and 62 degrees; what is the third angle's measur? The angles of a triangle always adds to 180o. You know two of the angles, solve for the third. can you please explained to...
*March 11, 2007 by vero*

**Biology**

In a population of jaguars, a gene with two alleles encodes the fur color. Allele B causes melanism (dark fur) and is dominant over allele b, which results in light colored fur. Suppose that there is a migration event, producing a population with 60% BB, 20% Bb and 20% bb ...
*January 28, 2013 by Joe*

**Chemistry**

1)) The following two half-cells are paired up in a voltaic cell. How will lowering the pH affect the E of the overall cell? ClO3-(aq) + H2O(l) + 2e- ==> ClO2-(aq) + 2OH-(aq) Eo= 0.35 V I2(S) + 2e-==> 2I-(aq) Eo = 0.54 V A)dE will increase B)dE will decrease C)dE...
*March 23, 2010 by Val*

**chemistry**

1)) The following two half-cells are paired up in a voltaic cell. How will lowering the pH affect the E of the overall cell? ClO3-(aq) + H2O(l) + 2e- ==> ClO2-(aq) + 2OH-(aq) Eo= 0.35 V I2(S) + 2e-==> 2I-(aq) Eo = 0.54 V A)dE will increase B)dE will decrease C)...
*March 23, 2010 by Val*

**microeconomics**

Do you think that a firm always pays the lowest wages they can? Why/why not? Relate your answer to productivity. Which workers do you think would be the first to be laid-off in the event of a slowdown. Why?
*October 14, 2011 by Timica*

**7th Grade Language Arts~!!!**

What was the first South American nation to receive independence? (1 point) Chile Argentina Paraguay Brazil My Answer: 1) Argentina Is this correct?
*April 2, 2013 by Gabby*

**Physics**

An object with a mass of 3.09x10^0 kg is subjected to a force of 8.8505x10^2 N directed at an angle of 1.6968x10^2 degrees from the x axis. A second force of 2.98725x10^3 N acting in the negative Y directions is also applied to the object. To two significant figures what is ...
*October 18, 2010 by peter*

**Trig**

Using a double angle formula how would you find the exact value of this expression? Cos˛105° - sin˛105°
*April 19, 2009 by Brian*

**precalculus**

For the given functions f ,g , and h , find fogoh and state the exact domain of fogoh . Please show all of your work. f(x)=e^x g(x)=sqrt x h(x)=2x^2+3x-35
*November 11, 2011 by tonia*

**Science 7R **

What is the EXACT site for cell webquest because when I googled it at home I couldn't find it and went I googled it at school the other day it worked.
*January 3, 2012 by Laruen *

**precal**

For the given functions f, g, and h, find fogoh and state the exact domain of fogoh. Please show all of your work. f(x)=lnx g(x)=|x|-2 h(x)=4x-7
*January 18, 2012 by Jo *

**geometry 2**

circle K has an area of 64 pi units ^2. Find the exact length of the arc intercepted by a 210 degree central angle in circle K.
*April 10, 2012 by Kate Jenson*

**Geometry**

Given that circle Q has a radius of 42, and radii line QR and line QS form an angle of 180, find the exact length of arc RS.
*April 15, 2012 by Joe*

**Math**

Simplify: 3/5 x 13.65 - 2/9 x 1.307 When I work this problem I get: 7.899555556 _ Would that be: 7.89 (or) _ 7.8995 The answer depends upon the order of operations, which must be clarified with parentheses and brackets. What you calculated is [(3/5) x 13.65)] - [(2/9) x 1.307...
*February 24, 2007 by Rachel*

**Microeconomics (margin Utility) need clarification**

Someone was kind enough to help me with this question, but i was still confused on how they helped me with the first part of my question. The original question was: You go to an auction and set a maximum price of $100 you are willing to bid on an item. However, you are ...
*October 15, 2008 by David*

**English**

1. Use tips to answer the questions with your partner. (What is the meanig of 'tip'?) 2. What is the reading about? What is the reading text about? (Which one is correct? Are both OK?) 3. What year are you in? I am in my first year in London Middle school. I am in my first ...
*March 9, 2009 by John*

**Introduction to statistics**

A researcher would like to estimate the population proportion of adults living in a certain town who have at least a high school education. No information is available about its value. How large a sample size is needed to estimate it to within 0.19 with 99% confidence? n= (...
*July 17, 2014 by Elizabeth*

**Maths!**

There has just been a planetary alignment of five planets in the system Blogg, all the astrologers have gone loopy, and they want to know when the next occurance of these five planets will happen again. Krypton the nearest planet to the sun takes 6 days to orbit the sun. Zenon...
*June 25, 2005 by -=-=-=-=-=-=-=-=-=-=-*

**Geometry **

Linda has two fish tanks in the shape of rectangular prisms. Each of the sides of the second fish tank is 3 times greater than the sides of the first fish tank. If Linda fills both the fish tanks completely with water, the volume of water in the second fish tank will be Answer...
*February 15, 2012 by Help me*

**Chemistry**

How would you prepare 2.5 L of a 0.05 M solution of iron (III) chloride using iron (III) chloride hexahydrate Since 1 mol iron(III)chloride hexahydrate contains 1 mol iron(III) chloride, use the molar mass of the hexahydrate. M x L = grams/molar mass Solve for grams. In ...
*May 2, 2007 by MEl*

**physics**

A model rocket is launched straight upward with an initial speed of 51.6 m/s. It accelerates with a constant upward acceleration of 1.96 m/s2 until its engines stop at an altitude of 230 m. What is the maximum height reached by the rocket? The acceleration of gravity is 9.81 m...
*October 12, 2011 by a*

**Social Studies (URGENT)**

Pleae help. It's urgent! 10. Why did many Native people start adapting to Victorian society? a.) Was this the only way that things could have gone between the Natives and the colonists? Explain your response. b.) Why didn't the settlers adapt to Native customs and traditions? ...
*February 15, 2010 by John*

**Physics**

The work function for potassium is 2.24eV. If potassium metal is illuminated with light of wavelength 310 nm, find the maximum kinetic energy of the photoelectrons. I have tried everything and still keep getting the wrong answer. The speed of light is 3 × 108 and Planck’s ...
*April 13, 2010 by Emily*

**Algebra**

1.The cost, in millions of dollars, to remove x % of pollution in a lake modeled by C=6000/200-2x. a.What is the cost to remove 75% of the pollutant? Answer: $30.2 million dollars b.What is the cost to remove 90 % of the pollutant? Answer: $30.27 million dollars c.What is the ...
*January 31, 2008 by Bretagne*

**Science**

1. A girl on a playground swing makes a complete to-and-fro swing each 2 seconds. The frequency of swing is 1. (0.5 hertz) 2. (1hertz) (ANSWER) 3. (2 hertz) And the period is (FROM THE QUESTION BEFORE) 1. (0.5 seconds) (ANSWER) 2. (1 second) 3. (2 seconds) 2. The period of a ...
*January 23, 2010 by Sam*

**civics**

I couldn't not find the answer to this in my book. The county form of local government is found in a. about half the states, b. all but two states, c.only 2 states, d. fewer then half of the states. I am guessing that since my book says " over the past century, the role of ...
*April 26, 2010 by Tiffany*

**Calculus**

this homework is due in one hour and i have no idea how to answer these questions. 1. A car is traveling at 50 mi/h when the brakes are fully applied, producing a constant deceleration of 20 ft/s^2. What is the distance covered before the car comes to a stop? 2. A stone is ...
*November 16, 2011 by Sam*

**statistics**

The data set given below has y^ = 3x - 5 for its regression equation. Find the standard error of estimate. x 3 2 5 8 y 4 1 10 19 A) 1.29 B) 0 C) 2.06 D) 0.17
*March 23, 2012 by ericka *

**math**

If alison was rounding to find how much 13 books that were 9$ apiece cost would she get a good estimate?
*October 17, 2012 by Deaundre *

**5 Pre-Calculus Questions**

1. What is the value of x in the right triangle below? If needed, round your answer to two decimal places. 32 angle, 15 inches, find the x in base… 2. A 10-foot ladder is leaning up against the side of a building so that the top of the ladder reaches the top of the building. ...
*June 30, 2011 by Anonymous*

**Math - 8th grade**

We are just starting this section, and I'm confused...Please help me understand how to solve this inequality: (one fifth r is less than two) 1/5r < 2 Also, simplify: (the #s are exponents) z3 . z3 x12/x3 By 1/5r you mean r/5 or 1/(5r)? z^3 . z^3 = z^6 x^12/x^3 = x^9 If you ...
*January 3, 2007 by Shawn*

**PHYSICS**

Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #8: A 20 kg block of ice slides without friction down a long hill. The start ...
*March 7, 2013 by Anna *

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