Sunday

February 1, 2015

February 1, 2015

**Recent Homework Questions About First Aid**

Post a New Question | Current Questions

**English (Dracula)**

1. What do we learn about Dracula's history from the first four chapters? 2. What do we learn about Dracula's likes, dislikes, habits, and abilities? 3. What is Dracula's plan for Jonathan Harker?
*Thursday, January 8, 2015 at 5:59pm*

**Math **

What is the smallest integer that can possibly be the sum of an infinite geometric series whose first term is 9? Please explain in steps.
*Thursday, January 8, 2015 at 5:40pm*

**polygons**

My daughters homework,Alphabet Polygons,her teacher gave a alphabet chart A-I first row, J-R second row, s-z third row the question 1. you can make 1 or 2 polygons of some of the letters by drawing just one more line segment, which letters are they>?
*Thursday, January 8, 2015 at 4:49pm*

**Math **

What is the smallest integer that can possibly be the sum of an infinite geometric series whose first term is 9? Please explain in steps.
*Thursday, January 8, 2015 at 4:01pm*

**science**

1. The Cenozoic Era is also referred to as the? A. Age of Mammals. B. Age of Fish. C. Age of Dinosaurs. D. First Era. 2. When new clay sediment is deposited on top of old beach material, it's known as? A. Transgression. B. Regression. C. Progression. D. Aggression. 3. ...
*Thursday, January 8, 2015 at 12:34pm*

**Math **

A certain infinite geometric series has first term 7 and sum 4. What is the result when the third term is divided by the second term?
*Thursday, January 8, 2015 at 8:55am*

**physics**

1. A billiard ball of mass mA = 0.4 kg moving with a speed vA = 2 m/s strikes a second ball, initially at rest, of mass mB = 0.4 kg. As a result of the collision, the first ball is deflected off at an angle of 30.0o with a speed v’A = 1.2 m/s. Taking the xaxis to be ...
*Wednesday, January 7, 2015 at 9:15pm*

**Physics**

A 0.500 kg bead slides on a straight frictionless wire with a velocity of 1.50 cm/s to the right. The bead collides elastically with a larger 0.750 kg bead initially at rest. After the collision, the smaller bead moves to the left with a velocity of 0.70 cm/s. Find the ...
*Wednesday, January 7, 2015 at 8:55pm*

**physics**

Two 4.6 g bullets are fired with speeds of 36.9 m/s and 74.8 m/s, respectively. a) What is the kinetic energy of the first bullet? Answer in units of J. b) What is the kinetic energy of the second bullet? Answer in units of J. I got part A), which is 3.131703J but i cant get ...
*Wednesday, January 7, 2015 at 6:28pm*

**math**

A large bag of sugar weighs 7 1/2 pounds. How much does 1 1/4 bags of sugar weigh? I really need help with this question. the first problem is that I don't know what operation to use and second I don't understand the main problem of this question.
*Wednesday, January 7, 2015 at 11:29am*

**physics**

a pool ball weighing 2 kg is traveling at 30 degree at 0.8 meter hits another ball moving at 0.5 m/s at 180 degree. if the second ball leaves the collision at 0 degree and the first moves away at 150 degree, find the final velocity vectors of the balls.
*Wednesday, January 7, 2015 at 8:38am*

**algebra**

Sheila has 7y craft sticks. Mark has 4y fewer craft sticks then Sheila and y craft sticks more than Linda. Then Sheila gave 2y craft sticks to Mark and Linda. How many craft sticks in terms of y did Mark and Linda have in the end? If mark had 6 more craft sticks than Linda at ...
*Wednesday, January 7, 2015 at 12:39am*

**Chemistry **

This is a longer assignment. I want you to confirm my first two answers and help me figure out the last. 3 Cu (s) + 8 HNO3 (aq) → 3 Cu(NO3)2 (aq) + 2 NO (g) + 4 H2O (l) A copper penny with a mass of 3.067 g is dissolved in 100.0 ml of 1.000 M nitric acid. A. How many ...
*Tuesday, January 6, 2015 at 8:09pm*

**Science**

I'm kinda in a rush but take your time!Thx! 1.What was Henri Becquerel studying when he accidentally discovered radioactivity? A.photography B.properties of black light C.properties of X-rays D.solar energy 2.When Marie Curie isolated uranium from pitchblende, she realized...
*Tuesday, January 6, 2015 at 7:18pm*

**LANGUAGE ARTS !! 8TH GRADE**

2. Read the following lines of dialogue spoken by Dr. Warren and Johnny in Chapter VI. “My boy,” came the doctor’s gentle voice, “Let me see your hand.” Johnny did not face him. He said nothing.“You don’t want me to look at it?” As long ...
*Tuesday, January 6, 2015 at 6:41pm*

**LSAT PREP**

A company employee generates a series of five-digit product codes in accordance with the following rules: The codes use the digits 0, 1, 2, 3, and 4, and no others. Each digit occurs exactly once in any code. The second digit has a value exactly twice that of the first digit. ...
*Tuesday, January 6, 2015 at 6:25pm*

**Physics**

Consider a ball at rest on the middle of a toy wagon. When a wagon is pulled forward, the ball rolls against the back of the wagon. Interpret this observation in terms of Newton's First Law of Motion. thanks ;)
*Monday, January 5, 2015 at 6:26pm*

** math**

May has 10 fewer marbles than Albert. May has 5 more marbles than Jenny. Albert gives4 marbles to Jenny. May gives another 6 marbles to Jenny. Jenny has 13 marbles now. Find the number of marbles each of them had at first. Jenny had 3 marbles. May had 8 marbles. Albert had 18 ...
*Monday, January 5, 2015 at 4:49pm*

**Algebra**

system of equations, the sum of two numbers is 46. the first number is 3/20 of the second number is it x + y = 46, x = 3/20y?
*Monday, January 5, 2015 at 4:27pm*

**Mathematics **

Find first derivative of following function x^2 log4 (x+1)^2
*Monday, January 5, 2015 at 11:43am*

**Mathematics **

Find the first derivative of following function log5 (2x+1/3x-1)
*Monday, January 5, 2015 at 11:06am*

**Langague Arts 8th Grade **

3. What does Johnny’s mastery of riding Goblin show about his character? (1 point) He is rash and quick-tempered. He is brave and determined. He is immature and selfish. He is arrogant and proud. 4. Which of the following statements most accurately reflects the political ...
*Sunday, January 4, 2015 at 10:33pm*

**History **

1. How is the Seven Years War related to the French and indian war? A- The French and Indian War directly caused the Seven Year's War B-; The French and Indian War was part of the Seven Year's War C- The Seven Years' War was more of a land war than the French and ...
*Sunday, January 4, 2015 at 7:39pm*

**Math**

Could someone please help me. Solve the linear equation by substitution. Y=10-2.2x 5x+y=70 For the first equation I am getting x=21.4 and for the second equation I am getting y=-37. The answers are 21 3/7 and -37 1/7. Could you show me how you do this so I can see where I went...
*Sunday, January 4, 2015 at 6:35pm*

**math-algebra HELP!!!!**

1) A gym charges a one-time sign-up fee and then a regular monthly fee. The cost of a membership as a function of the number of months as a member is shown for 2010 and 2011 on the graph. a. What characteristics of the graph represent the sign-up fee and the monthly fee? What ...
*Sunday, January 4, 2015 at 1:24pm*

**math**

the ninth term of an arithmetic progression is 52ind the and the sum of the first twelve terms is 414.find the first term and the common difference.
*Sunday, January 4, 2015 at 10:44am*

**Algebra 1**

Translate problem situation to a system of equations. Do not solve. The sum of two numbers is 10 the first number is 2/3 of the second number. What are the numbers? would it be 6, and 4? or 7, and 3? I know 2/3 of 10 is 6.66666667, so being after the decimal is higher than 5 ...
*Sunday, January 4, 2015 at 2:24am*

**Maths**

If the 6th term of an arithmetic sequence is 48, and the sum of the first 6 terms is 300, what is the first term and the constant different?
*Sunday, January 4, 2015 at 12:40am*

**Maths**

If the 6th term of an arithmetic sequence is 48, and the sum of the first 6 terms is 300, what is the first term and the constant difference?
*Sunday, January 4, 2015 at 12:25am*

**AP Chemistry**

A mixture of 20.0 grams of CaO and BaO is placed in a 12.5 L vessel at 200oC with excess CO2 . The mixture is allowed to react to completion forming CaCO¬3 and BaCO3 .The pressure in the container after reaction is 220 torr. The solid carbonates are neutralized by adding ...
*Saturday, January 3, 2015 at 5:06pm*

**English**

The whole idea of it makes me feel like I'm coming down with something, something worse than any stomach ache or the headaches I get from reading in bad light-- a kind of measles of the spirit, a mumps of the psyche, a disfiguring chicken pox of the soul. You tell me it is...
*Saturday, January 3, 2015 at 4:51pm*

**ALGEBRA**

if the 6th term of an arithmetic sequence is 48, and the sum of the first 6 term is 300, what is the first term and the constant difference? Pls help as I have never learn this before,need some example to start with.thank you
*Saturday, January 3, 2015 at 11:16am*

**calculus**

finding first derivative for functions y=x³In(5x)
*Saturday, January 3, 2015 at 10:17am*

**Math Linear Equations**

Two lines are drawn on a co-ordinate axis. The equation of the first line is y=-2,and the equation of the other line is y=3x+1. What are the co-ordinates of their intersection point? I have been on this for hours and can't figure out how to do this. Please help. Thank you
*Friday, January 2, 2015 at 11:53pm*

**Calculus**

The function h(x) = x^3+bx+d has a critical point at (2,-4). Determine the constants b and d and find the equation of h(x). I'm very confused and I do not have any idea on what the first step is.
*Friday, January 2, 2015 at 3:56pm*

**English Please.**

It had been there when the midwife had announced, ‘You’ve a boy.’ The hat was there when his wife had their second little joy. Why does the author MOST likely choose the words, ‘their second little joy’? A)They had twin boys. B)It expresses that their ...
*Friday, January 2, 2015 at 1:22pm*

**Statistic**

There are two independent multiple-choice quizzes where quiz 1 has eight questions and quiz 2 has 15 questions. Each question in the first quiz has four choices and each question in the second quiz has five choices. Suppose a student answers the questions in the quizzes by ...
*Friday, January 2, 2015 at 8:34am*

**math**

the sum of two number is 39 . twice the first number plus 3 times the second numberis 101. find the numbers. x+x+1=39 2x=38 x=19 twice the first number 19 it would be 38 and 57 b three times the second number. i know is wrong kind o but please tell me.
*Friday, January 2, 2015 at 2:30am*

**physics**

A golfer takes two putts to get his ball into the hole once he is on the green. The ﬁrst putt displaces the ball 3.4 m east, and the second 6.55 m south. What displacement would have been needed to get the ball into the hole on the first putt. answer in units of m
*Thursday, January 1, 2015 at 8:26pm*

**physics**

A stone is thrown into water pond forming 10 waves in 5 seconds. The diameter of the first crest is 13 m and the diameter of the last crest is 4m. Find a.the periodic time b.the frequency c.the wave length d.the wave velocity
*Thursday, January 1, 2015 at 5:58am*

**Art Questions REALLY NEED HELP**

This is the first time i've gotten stuck on art questions. I think I know a few but would like some help. 1. The Munsell color model was the first color model to do what? use numbers to describe colors use additive color mixing use RGB as primary colors use a color wheel 2...
*Wednesday, December 31, 2014 at 5:39pm*

**calculus**

I really don't know where to start or go with this question...There aren't any similar examples in my book so if you could walk me through it so I can be prepared for my test - that would be great! Thanks. (a) Approximate √26 by using the linearization of y=&#...
*Wednesday, December 31, 2014 at 2:43pm*

**Pre-Calc/Trig**

A potato is put into an oven that has been heated to 350F. Its temperature as a function of time is given by T(t) = a(1 - e-kt) + b. The potato was 50F when it was first put into the oven. if the potato is 60F after 2 minutes, what is the value of k? ...
*Tuesday, December 30, 2014 at 9:44pm*

**REVISED Improving Writing.**

Draft an interoffice memorandum to Miriam Hopkins, the Director of Human Resources: a. Assume that you’ve received confirmation from Jeremy Dittmer for the date, time, and materials needed. The trainer he has assigned is Deb Walker (email: Deb.Walker..). b. Outline the ...
*Tuesday, December 30, 2014 at 1:22pm*

**Pre-Trig/Calc**

Please help :) A potato is put into an oven that has been heated to 350F. Its temperature as a function of time is given by T(t) = a(1 - e-kt) + b. The potato was 50F when it was first put into the oven. What is the value of b in this context? Explain. What is ...
*Monday, December 29, 2014 at 9:40pm*

**RE RE REVISED IMPROVING WRITING**

Special note to my all time favorite: Writeacher: I am sorry that my changes seemed as if I did not read your first notations, I did and I admit I changed only a few words. I am sorry if you thought I ignored it and just re submitted it. I am a beginner in writing business ...
*Monday, December 29, 2014 at 5:44pm*

**Improving Writing- REVISED VERSION**

Assume that you’ve worked for the last five years as an administrative assistant for the Human Resources Department of Broadworth General Hospital. The Director of Human Resources, Miriam Hopkins, has charged you with organizing a two-hour training seminar to be attended ...
*Monday, December 29, 2014 at 1:14pm*

**IMPROVING WRITING**

I have 3 essays if someone could correct them for me ! #1 I am writing to you regarding an upcoming seminar that will cover the sensitive topics of sexual harassment and unlawful discrimination. It would be my humble request if you could supply an appropriate trainer who will ...
*Sunday, December 28, 2014 at 12:44pm*

**english (3rd grade)**

Kindly correct my answers. Direction: Arrange the sentences to form unified, coherent, logical and orderly paragraph. 1. a.For example ostriches and penguins cannot fly. b.The fastest birds can fly 100 km per hour. c.When people think of birds, they think first of their flying...
*Sunday, December 28, 2014 at 6:58am*

**^English^**

Pls.., what is the difference btw. FIRST Name, MIDDLE Name and LAST Name?
*Saturday, December 27, 2014 at 5:12pm*

**Physics**

A ball is thrown straight upward and returns to the thrower’s hand after 2.3 s in the air. A second ball is thrown at an angle of 60◦ with the horizontal. At what speed must the second ball be thrown so that it reaches the same maximum height as the first? The ...
*Saturday, December 27, 2014 at 1:55pm*

**Math (PreCalculus)**

A spring with a weight attached is oscillating. The weight (which is attached at the bottom of the spring) is 5 feet from a 10-foot ceiling when it’s at rest. The motion of the weight can be described by the equation: y=3sin(pi*t - pi/2) , where y is the distance from the...
*Thursday, December 25, 2014 at 3:31pm*

**Language Arts- Johnny Tremain**

Which of the following passages from the novel could be used to support the idea that Sam Adams was a rebel intent on war with england? A) "The first of the tea ships, the Dartmouth, is entering the harbor. She'll be at Castle Island by nightfall" B) "Ah, Mr...
*Wednesday, December 24, 2014 at 6:05pm*

**science**

1. Under which of the following conditions would a fossil most likely form? A. A living thing dies and sediment is very slowly deposited on top of its body. B. A living thing dies and sediment quickly covers its body. C. A living thing dies and its skeleton is left exposed to ...
*Tuesday, December 23, 2014 at 7:04pm*

**Big History Test (Check) Part1.**

What was the chief goal of the Compromise of 1850? to resolve Texas's statehood issues to preserve the Union <-- to improve the economy in both the North and the South to preserve the balance between slave states and free states What theory promoted by Congressman ...
*Tuesday, December 23, 2014 at 11:46am*

**Algebra**

Mr. Zerman went shopping. In the first store he spent half of his money plus an additional dollar. At the second store he spent half of his remaining money plus an additional dollar. This pattern continued until he left the fifth store with no money left. How much money did he...
*Monday, December 22, 2014 at 3:20pm*

**music appreciation **

Who was the first American-born conductor to lead the New York Philharmonic?
*Sunday, December 21, 2014 at 1:18pm*

**English**

i have to write an essay based on Romeo and Juliet. The thesis is going to be based on Romeo's motive which is to marry Juliet. How can i start my introduction paragraph like the first few sentences before the thesis? please help me
*Saturday, December 20, 2014 at 6:50pm*

**English-Narrators**

Hi, I need some help distinguishing the type of narrators in this story. The questions relate to the following prose passage: "When Peter Smith saw his old friend George Rogers for the first time in years, he was amazed. He was walking through one of the poorest sections ...
*Saturday, December 20, 2014 at 2:17pm*

**english**

Both texts deal with racial discrimination. How does the structure of poem help convey this meaning in a way that the prose passage does not? A) The poem conveys meaning through imagery; the prose passage does not. B) The poem uses first person point of view; the prose ...
*Saturday, December 20, 2014 at 1:26am*

**English--Edgar Allen Poe**

I need some help with some questions about an excerpt from "The Tell-Tale Heart" by Edgar Allen Poe: "True! --nervous --very, very dreadfully nervous I had been and am; but why will you say that I am mad? The disease had sharpened my senses --not destroyed --not...
*Saturday, December 20, 2014 at 12:59am*

**math**

Please solve the system with the elimination method. Explain each step as it is performed. 5y = x 2x - 3y = 7 Would the elimination method have been your first choice to solve this problem?
*Thursday, December 18, 2014 at 10:07pm*

**Calculus**

Determine the intersection, if any, of the planes with equations x + y - z + 12 = 0 and 2x + 4y - 3z + 8 = 0. I have no clue where to even begin. If someone could help and give me the steps to complete it, that would be greatly appreciated. Do I have to first simplify the ...
*Thursday, December 18, 2014 at 4:35pm*

**Calculus**

Determine the intersection, if any, of the planes with equations x + y - z + 12 = 0 and 2x + 4y - 3z + 8 = 0. I have no clue where to even begin. If someone could help and give me the steps to complete it, that would be greatly appreciated. Do I have to first simplify the ...
*Thursday, December 18, 2014 at 3:35pm*

**L.A help please**

Which of the following passages from chapter X reveals the Climax of the novel? A. outside the closed window on Tremont Street a small group of soldiers were marching stealthily toward the Common. These were the first they heard. But soon another group marched past, then ...
*Thursday, December 18, 2014 at 1:49pm*

**math**

If Susan takes two tests and makes a makes a 54/100 on the first test and a 63/100 on the second test, and is given a third test and makes an 80/100(which can only count as 20% of her total grade for all three test, what is her final grade/score.
*Thursday, December 18, 2014 at 1:14pm*

**math**

an employee is paid $3600 for the first month. she is paid an additional 1% at the end of the second month, which means a total of $3636. she continues to receive a 1% raise each month for a full year. what is her total salary at the end of the year?
*Wednesday, December 17, 2014 at 9:30pm*

**Algebra **

Steve is driving to a ski resort. At first, he drove at a rate of 65 mph. Then a snow storm started and he had to slow down to 40 mph. In total. it took him 6 hours to drive 310 miles. Which system of equations represents this situation? A. 6x + y= 1 x + y= 310 B. x + y= 105 ...
*Wednesday, December 17, 2014 at 5:16pm*

**L.A help please**

Please check. 4. Which of the following is one of the most significant events in chapter VIII *Johnny Tremain* A. Merchant Lyte's sickness B. James Otis's speech C. Lavinia asking the soldier to get Dr. Warren for her father*** I chose this one D. Dr. Warren lending ...
*Wednesday, December 17, 2014 at 5:01pm*

**Algebra **

To solve the following system of equations by elimination, which step would best to perform first? 1/2a - 1/4b = 1 1/3a + b= 3 A. Add the two equations. B. Subtract the two equations. C. Multiply the first equation by 4. D. Divide the first equation by 3.
*Wednesday, December 17, 2014 at 4:43pm*

**language arts**

Which of the following passages from the novel could be used to support the idea that sam adams was a rebel intent on war with England? (Johnny Tremain) A "the first of the tea ships the yarmouth is entering the harbor. She'll be at castle island by nightfall" B...
*Wednesday, December 17, 2014 at 4:36pm*

**math**

Estimate by first rounding each number to the nearest integer. 4 1/9 + 2 2/13 A. –7 B. –6 C. 6 D. 7
*Wednesday, December 17, 2014 at 3:54pm*

**Graph Theory/ Algorithms / Computer science**

I am working on this problem from the book, Data Structures & Algorithm Analysis in C++. The problem is: 9.40 Give a polynomial-time algorithm that ﬁnds ceil(V /2) vertices that collectively cover at least three-fourths (3/4) of the edges in an arbitrary undirected ...
*Wednesday, December 17, 2014 at 12:25am*

**math help!!**

the first term in a geometric series is 4 and the sum of the first three terms of the series is 64. find the sum of the first eight terms of the series.
*Tuesday, December 16, 2014 at 10:06pm*

**math help **

the sum of the first two terms in a geometric series is 12. the sum of the first three terms of the same series is 62. determine the first four terms of the series.
*Tuesday, December 16, 2014 at 9:54pm*

**Calculus**

Given the function f(x)= x√(x+3), Indicate the domain of f(x): ………………
3;……… What are the x – intercepts of the graph of f(x)? POINTS! ………………
3;…………. ...
*Tuesday, December 16, 2014 at 7:11pm*

**english**

1. In works like "To Build a Fire," Naturalist writers such as Jack London advocated (Points : 5) trusting entirely in the wisdom and ingenuity of human beings. respect for the power and wildness of the natural world. remaining always within the protective boundaries...
*Tuesday, December 16, 2014 at 9:49am*

**English 4**

Locate a brief passage (about a paragraph in length) from The Red Badge of Courage that describes the course of an assault using details and mental associations rather than factual or realistic representation. Contrast it with the following excerpt (written in the first person...
*Monday, December 15, 2014 at 10:11pm*

**science**

why is it rare for the soft parts of an organism to become a fossil? a) the soft parts take a long time to decay b) the soft parts can be eaten by animals***** c) the soft parts cannot be buried in sediment d) the soft parts form petrified fossils which of the following terms ...
*Monday, December 15, 2014 at 10:01pm*

**Nicola**

Hello, I need some help with a few questions about this poem: She was a Phantom of delight When first she gleamed upon my sight; A lovely Apparition, sent To be a moment's ornament; Her eyes as stars of Twilight fair; [5] Like Twilight's, too, her dusky hair; But all ...
*Monday, December 15, 2014 at 9:16pm*

**Algebra 1 thx**

Antonia is saving for a video game. On the first day, she saves two dollars in her piggy bank. Each day after that, she doubles the number of dollars she saved on the previous day. How many dollars does she save on the sixth day?
*Monday, December 15, 2014 at 7:23pm*

**chemistry **

In the Bohr model, which is the lowest energy state available for an electron? A. nth B. excited state C. first state D. ground state Im thinking the answer is c or d.
*Monday, December 15, 2014 at 6:16pm*

**Math**

Mary's parents decide to give her an allowance every Saturday. The first Saturday they give her .01 cent. For each successive week they double the amount given the previous week. If Mary saves her allowance, in how many weeks will she be a millionaire?
*Monday, December 15, 2014 at 5:32pm*

**Policing**

During what decade were the precepts and designs of new-generation jails first introduced and adopted? a. the 1960s b. the 1970s c. the 1980s d. the 1990s is it B
*Monday, December 15, 2014 at 4:13pm*

**Math HELP!**

Consider the function y = 3x5 – 25x3 + 60x + 1. Use the first or second derivative test to test the critical points. How many relative maxima did you find? 0 1 2 <--- 3 4
*Monday, December 15, 2014 at 3:04pm*

**Math**

Natalia constructed a right triangle with two side lengths measuring 3 and 5 units. She constructed a second right triangle similar to the first one, with the two corresponding sides measuring 5.1 and x units in length, respectively. What is the missing length, x, of the ...
*Monday, December 15, 2014 at 1:41pm*

**Math **

Penn writes a 2013-term arithmetic sequence of positive integers, and Teller writes a different 2013-term arithmetic sequence of integers. Teller's first term is the negative of Penn's first term. Each then finds the sum of terms in his sequence. If their sums are ...
*Monday, December 15, 2014 at 12:57pm*

**language arts**

Which of the following sentences from the novel johnny remain (chapter 5) provides evidence that Rab is having a positive effect on Johnny? A. he liked to make a handsome entrance. Even if he and Goblin had dawdled a bit on country roads, they both liked arriving at the inns ...
*Monday, December 15, 2014 at 11:33am*

**Biology**

Explain what happens at the first checkpoint If GO is prevented from occuring. Answer: these cells can be called back from the G0 phase to the cell cycle by external cues
*Sunday, December 14, 2014 at 11:22pm*

**Calculus **

Consider the function y = 3x5 – 25x3 + 60x + 1. Use the first derivative test to decide whether this function has a maximum at x = 1
*Sunday, December 14, 2014 at 9:47pm*

**Math **

Penn writes a 2013-term arithmetic sequence of positive integers, and Teller writes a different 2013-term arithmetic sequence of integers. Teller's first term is the negative of Penn's first term. Each then finds the sum of terms in his sequence. If their sums are ...
*Sunday, December 14, 2014 at 8:04pm*

**Calculus**

A baseball diamond is a square with side 90 ft. a batter hits the ball and runs toward first base with a speed of 24 ft/s. (a) At what rate is his distance from second base decreasing when he is halfway to first base? Is the answer 0.0932ft/s? I don't see that it is ...
*Sunday, December 14, 2014 at 7:39pm*

**Calculus**

A baseball diamond is a square with side 90 ft. a batter hits the ball and runs toward first base with a speed of 24 ft/s. (a) At what rate is his distance from second base decreasing when he is halfway to first base? (b) At what rate is his distance from third base increasing...
*Sunday, December 14, 2014 at 6:16pm*

**Calculus**

A baseball diamond is a square with side 90 ft. a batter hits the ball and runs toward first base with a speed of 24 ft/s. (a) At what rate is his distance from second base decreasing when he is halfway to first base? (b) At what rate is his distance from third base increasing...
*Sunday, December 14, 2014 at 5:50pm*

**Cal**

Consider the function y = 3x5 – 25x3 + 60x + 1. Use the first derivative test to decide whether this function has a maximum at x = 1. Which of the following describes what you found?
*Sunday, December 14, 2014 at 4:41pm*

**calc urgent**

let P be the portion of the disk x^2 + y^2 <= 1, lying in the first quadrant. having mass density of p=x, if the mass of P is 1/3 , find the y coordinate of the center of mass of P. the answer is 3/8
*Sunday, December 14, 2014 at 4:24pm*

**Algebra**

To solve 9x^2-12x+4=49 by using the Square Root Property, you would first rewrite the equation was as A. 9x^2-12x-45=0 B.(3x-2)^2=+/-49 C.(3x-2)^2=7 D.(3x^2)^2=49
*Saturday, December 13, 2014 at 9:01pm*

**Algebra **

The fifth term of an arithmetic sequence is 11. If the difference between two consecutive terms is 1, what is the product of the first two terms?
*Saturday, December 13, 2014 at 3:32pm*

**math**

a vector parallel to the line of intersection of the planes. x-2y-z=6 and 3x-y+z=4 the answer is <3,4,-5> so first, I took the cross product of <1,-2,-1> and <3,-1,1> which I think is v. in the equation p0 + tv. << this is the equation for the line of ...
*Saturday, December 13, 2014 at 12:16pm*

**math**

a job pays a salary of $19,00 the first year. during the next 10 years the salary increases by 4% each year. what is the lifetime salary over the 11 year period?
*Saturday, December 13, 2014 at 12:05pm*

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