Monday

December 22, 2014

December 22, 2014

Number of results: 98,319

**Math - Precision and Significant Digits**

Please help me with the following: Find each product or quotient. Use significant digits. 0.0505m x 665m A. 33.6 m^2 B. 33.58 m^2 C. 33.50 m^2 D. 3.582 m^2 I think the answer is A. Is this correct? Please help me by checking my answer. Any help will be appreciated!! :) P.S.: ...
*August 30, 2014 by Brady*

**algebra (checking answer)**

Checking to make sure I did it right.. Remainder theorem to find the remainder when f(x) is divided by the given x-k f(x)=x^3-4x^2+2x+4; x+2 2 x -4 2 4 1 2 -4 4 1 -2 -2 8 2)x^3-4x^2+2x+4. (X^3-2x^2-2x) is the answer x^3 -2x^2+-2x -2x^2+4x 6x+4 -2x+4 8x+8 I'm not sure the ...
*March 20, 2013 by Anonymous*

**Earth Science - Please Check My Answer**

Please help with the following: Dani wants to measure the volume of a pebble. Which tool will give the most accurate measurement? A. a ruler B. a tablespoon C. a measuring cup D. a graduated cylinder I think the answer is mostly D. Is this correct? Please help me by checking ...
*October 2, 2014 by Brady*

**Garland High school**

Suppose you must maintain a balance of least $500 in your checking account in order to have free checking. The current balance in your checking account is $635.27. Which inequality describes how much can write a check for a and still have free checking? A. 635.27>500-x B. ...
*December 30, 2010 by Maria*

**algebra 1**

A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the students checking ...
*September 6, 2013 by sabina brown *

**math**

A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the students checking ...
*December 13, 2013 by Beebee*

**algebra**

A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the students checking ...
*January 10, 2014 by 1215*

**Algebra 1**

A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the students checking ...
*August 21, 2014 by Sabrina*

**math**

A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the students checking ...
*October 23, 2014 by danielle*

**communication**

Repeating in your own words the verbal content of the critic's message is: paraphrasing. checking for feelings. checking for inferences. buying time with limited agreement.
*June 24, 2010 by anna*

**Math**

Avirus scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files?
*April 4, 2008 by Ms. Teri*

**math**

A virus scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all files?
*July 23, 2008 by Ann*

**Caplan**

A virus-scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files
*January 29, 2009 by Julie*

**math**

Business and finance. Avirus scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files?
*April 9, 2009 by Allen*

**Math**

I haven't done factoring in ages I'm trying to factor this X^2 - 2X + 8 If i remeber correctly sense the leading coefficent is 1 the factored form is in this format (X-A)(X-B) which would give you X^2 -AX - Bx + AB or simply X^2 -(A+B)X +AB so then in my problem -(A+B)X = -2 ...
*January 3, 2010 by Kate*

**algebra**

After solving a system of linear equations, how can you check your answer to determine whether it is correct? Demonstrate the process of checking an answer with an example
*June 9, 2011 by Gladys *

**math 116**

After solving a system of linear equations, how can you check your answer to determine whether it is correct? Demonstrate the process of checking an answer with an example.
*March 10, 2010 by earl*

**Math**

5(2a + b)-2(3a-5b) Is the answer 4a+15b just checking
*October 8, 2013 by Abby*

**Math 3371**

In a certain year, 26% of all teenagers in the United States had checking accounts. Your bank, TeenChex Inc., is interested in targeting teenagers who do not already have a checking account. (a) If TeenChex selects a random sample of 3,000 teenagers, what number of teenagers ...
*November 24, 2014 by John*

**pre-algebra**

Terry has 43 dollars in a checking account.If terry writes a check for 62 dollars what is the new checking balance?
*September 17, 2012 by emily h*

**Social studies?**

Please ignore my previous post. I prematurely hit the enter key. I've been watching this board all day, waiting for someone to answer my physics question (no one has yet. sigh.) I just have to say Ms. Sue is my hero. She consistently answers almost every student's questions, ...
*August 15, 2007 by Anastasia Beaverhausen*

**Career Explorations - Please Check my Answer**

Please help me with the following question: Which statement describes the relationship between being a waitress and being a restaurant manager? A. Being a waitress is a job, while managing a restaurant is a career. B. Being a waitress and managing a restaurant can be different...
*September 4, 2014 by Brady*

**Math**

Tonia deposited a total of $174.52 into her checking account. She also withdrew a total of $186.15. Use addition to find the net change in Tonias checking account.
*September 25, 2011 by Caitlin*

**math**

The product of 3^4*3^-2 is so I multiplied the exponents and got 4*-2 =-8 so my answer is 3^-8 Is this correct? Thanks for checking my work
*January 26, 2014 by B8*

**D/dt**

Calculate d/dt when a=t^2, b=2 and sqrt(x+1)dx. My answer turns out to be incorrect despite my checking it several times. I got -2/3t* sqrt(t^2+1) Can someone explain to me what is wrong with my answer and how to go about obtaining it the right way? Thank you everyone. :-)
*May 15, 2013 by Leah*

**Algebra II**

Solve, round to four decimal places if necessary: log4(x-9)=2 Answer: x-9=4^2 x-9=16 x=11 log4(z)+log4(z-3)=1 Answer: z+z-3=1 2z=4 z=2 Thanks for checking my work.
*March 29, 2008 by Lucy*

**Math - Please Check My Answer**

Please help me with the following: Find the greatest possible error for each measurement. 4 1/2 oz A. 1/4 oz B. 2 1/2 oz C. 1 oz D. 2 1/4 oz I know it is not B(I got it wrong.), but I think it is A. Is this correct? Please help me by checking my answer. Any help is appreciated...
*September 1, 2014 by Brady*

**health**

yeah its me again :) and thank you Writeacher for checking my answer on smoking An antihistamine used to treat a common cold is intended to: A. Decongest B. Suppress the cough reflex C. Dry secretions D. Increase mucus clearance I think it could be either A or D but I'm ...
*December 9, 2007 by abby*

**Algebra II**

1)Rewrite 5pi/4 radians in degree measure. Answer: 225 2) Which angle is coterminal with a -400 degree angle in standard position? Answer: 40 Thanks for checking my answers:)
*April 6, 2008 by Lucy*

**Math**

Please help me with the following by checking it. Solve for x: √(2x^2+5)=2 A. 1 B. √2 - (This is my answer.) C. 2 D. None of the above. I am not sure about my answer, can someone check it please. Any help will be greatly appreciated.:)
*April 7, 2014 by Brady*

**Math**

A virus scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files? I am not sure how to set this problem up, can someone please help! 40% = 40/100 40/100 = 300/x Solve for x. ...
*May 26, 2007 by Stacy H*

**Math**

What is the net price factor for trade discounts of 25/15/10? Answer: .57375 Just checking my homework answers
*May 20, 2013 by Ann*

**Math**

Another problem with my checking. The teacher says the answer is 280 but when I try to check it I never get the right one (24-d)/16=19
*September 23, 2013 by Jenny*

**Ratios and Rates - Last One!**

Please help me with the following problem: Convert each rate using dimensional analysis. Round to the nearest tenth, if necessary. 4.5 qt / min = ____ gal / h A. 67.5 B. 33.8 C. 56.3 D. 65 I think the answer is A. Is this correct? Please help me by checking my answer. Any help...
*August 24, 2014 by Brady*

**Math**

Barbara had $123.54 in her checking account. she made a deposit of $45.62. when she went shopping later that day, she saw a coat she really wanted. it was on sale for 40% off the original price of $240. Assuming that she bought nothing else that day, does she have enough money...
*September 11, 2013 by Evelyn*

**Algebra II**

Simplify: (y^2+y-20)/(y^2-2y-8) Answer: y+5/y+2 2)Simplify: (1+i)/(2-i) Answer: 1/5+3/5 i 3) Solve 3x^2-8x+4=0 by graphing. If exact roots cannot be found, state the consecutive integers between which the exact roots are located. Answer: 2; between 0 and 1 Thanks for your time...
*April 6, 2008 by Lucy*

**Math**

Hi, would someone mind just checking the answer I got for this formula and tell me if I'm on the right track or not. Question... x+y=21 3x=4y Answer I got... x=84 y= -63 I didn't get that. Check your math. I found 7y=63 but not y = 63. You can always check your answer. Is 4X...
*October 22, 2006 by Jessica*

**Language Arts - Please Check My Answer For This**

Please help me with the following: Read the sentence. Juanita used her affinity for numbers to help her design a computer program that relied on college-level math formulas, even though she was only in middle school. Based on the context clues in the sentence, what is the best...
*September 12, 2014 by Brady*

**finance**

computing checking account balance. based on the following information,determine the true balance in your checking account. balance in your checkbook-$356 balance on bank statement,$472 service charge and other fees, $15 interest earned on account $4 total outstanding checks $...
*February 11, 2012 by sharon*

**algebra**

Delila has $1200 in a saving account and in a checking account. The ratio of money in saving to money in the checking is 3 to 2. Use a system of equation to find how much money is in each account .
*April 12, 2012 by unknown*

**math**

MS.powell has -$25 in her checking account after withdrawing money from the atm .How much did Ms.Powell withdraw if she had $85 in her checking account before she withdraw the money?
*July 10, 2013 by LESLIE*

**History**

What is the goal of Japan in World War 2? A. to defeat Germany B. to capture China C. to extend its empire Is the correct answer C? Thank You for checking!
*June 22, 2010 by Anonymous*

**Science - Maps and Computers - Please Check**

Please help me with the following: A single ocean color satellite can collect how many data points? A. 2,000 B. 2,000,000 C. 20,000 D. 2,000,000,000 I know the answer is not D, because I got it wrong. I think the answer is mostly A, but I also think it is possibly B. Is A ...
*November 14, 2014 by Brady*

**statistics**

The First National Bank of Wilson has 680 checking account customers. A recent sample of 60 of these customers showed 32 to have a Visa card with the bank. Construct the 98 percent confidence interval for the proportion of checking account customers who have a Visa card with ...
*October 31, 2011 by Nathalia*

**Math**

Please help me with the following by checking my answer. The length of the hypotenuse of an isosceles right triangle is √6 inches. How long, in inches, are the legs of the triangle? A. 3 B. 6 C. √3 - (This is my answer.) D. √6 I am not sure on my answer, ...
*April 8, 2014 by Brady*

**Algebra**

ello i need help factoring I haven't had factorin sense Algebra one and now am in Algebra two and our school is screwed up were they shove in a year of Euclidean Geometry and Basic Trig inbetween first two years of Algebra... so i need to factor X^2-12X+35 I can sit there for ...
*December 7, 2008 by Algebra*

**statistics math**

MEAN =10 & STANDARD DEVIATION =2. FIND THE PROBABILITIES: 9.4 X 10.6 i have 2 different answers but am checking the answer. thank you one is 0.6179 the other is 0.2358
*March 8, 2011 by Jeannie *

**Physics(Checking answer)**

Sorry for the re-post but I really need to know this, but now I just want to know if the question is right. A spring with a force of 5.2 N/m has a relaxed length of 2.45. When a mass is attached to the end of the spring and allowed to come to rest. the vertical length of the ...
*November 4, 2010 by Pablo*

**ALGEBRA**

Checking algebra answer, Is it correct? 320km/1hr ↓ 320km /1hr →1m/1.609km =320m/1.609hr=199.3mph Answer: Round to nearest 10th =198.9mph
*August 25, 2014 by ALGEBRA*

**Algebra answer for checking**

relation or function? x^2 = 1 + y^2 This is a function because relations cannot be an equation right?
*October 5, 2007 by Lizzy*

**Science **

Ms.Sue would you mind checking my answer? Question~ What make sit possible for plants to complete photosynthesis? _________________________________________ My Answer~ For plants to complete photosynthesis they need water,carbon dioxide and light.
*January 11, 2014 by Anonymous *

**chemistry**

Just checking an answer... I was given Aluminum + Sulfur yields.. & I was to finish & balance & answer the questions. 2Al + 3S => Al2S3 If 1 mole of sulur reacts, how many moles of aluminum sulife are produced? .166 mol Al2S3 How many grams of aluminum sulfide is this? 24.9 g
*March 31, 2008 by anna*

**checking to see if this is right**

just checking to see if i have this problem correct Sammy can cut wood twice as fast as Joe. When they both work together, it takes them 4 hrs. how long would it take them to do the job alone? 4/x +4/x+2 = x^2+2 4x+4x+8= x^2+2 8x+8= x^2+2 x^2-6x-8=0 (x-4)(x+2) x=4 x=-2 since i...
*March 2, 2011 by Paige*

**Algrebra II-please check my answer**

Determine the zeros of the function 7x^2 + 9x = 0 answers were: {-9/7} {-9/7,0} {o,9/7} {9/7} I think the answer is {-9/7,0} but I'm not positive when I worked it-If this is wrong please steer me into the correct calcs because then I don't what I'm doing wrong 2.Solution to ...
*January 14, 2011 by Sammy*

**stats-please help**

MEAN=10 & STD DEVIATION=2. FIND THE PROBABILITIES: 9.4 less than X less than 10.6? i have 2 different answers but am checking the answer. thank you
*March 8, 2011 by jean *

**algebra**

solve by using the quadratic formula prove your answer is correct by checking can someone please show me how to do this step by step 2x^2+3x+4=0
*October 5, 2013 by johnnie*

**Math**

which ordered pair is the solution of the following system of equations? y=2x-3 x+y=3 1) (1,2) 2)(2,1) 3)(3,0) 4)(3,3) MY work: y=2x-3 x+(2x-3)=3 3x-3=3 +3 +3 3x/3=6/3 x=2 x+y=3 2+y=3 -2 -2 y=1 so I got (2,1) which would be answer 2 Is this correct? Thanks for checking my work
*January 10, 2014 by B8*

**math**

what is the slope of the line represented by the equation 4x+3y=12 1) 4/3 2) 3/4 3) -3/4 4)-4/3 I did 4x+3y=12 -4x -4x 3y=-4x+12 /3 /3 divide each side by3 y=-4/3x+4 so I got answer 4 because the -4/3 is the slope Is this correct? Thanks for checking my work
*May 25, 2014 by b8*

**Check my physics**

Would you mind checking one of my problems from my physics study guide? I know the answer and just want to make sure I am using the right formula. :) A 78-kg skydiver has a speed of 62 m/s at an altitude of 870 m above the ground. a. Determine the kinetic energy possessed by ...
*March 7, 2013 by Anna *

**Physics(checking answer)**

Two 3.0g bullets are fired with speeds of 40.0 m/s and 80.0 m/s respectively. What are their kinetic energies? Which bullet has more kinetic energy? What is the ratio of their kinetic energies? I got 60 for the first bullet and 120 for the second. I am not sure I used the ...
*October 31, 2010 by Cory*

**social studies 7th**

I am checking my child's homework. Can you help? During what years was the Civil War fought? My child's answer is- The Civil War was fought over the span of four years. I really do not think this is the answer the teacher will be looking for. What do you think? I thought the ...
*September 17, 2011 by Mom needs help!*

**Math - Please Help Check My Answer**

Please help me with the following question: A student attempts to solve for c in the equation below. Which statement best applies to the work shown below? 3c + 6 - 4c - 12c = 7 -13c + 6 = 7 -13c + 6 + (-6) = 7 + (-6) -13c = 1 c = -1/13 A. The student followed all rules ...
*October 22, 2014 by Brady*

**Physics**

I just want some help checking my homework... Question: A care travelling at a velocity of 42ms-1 suddenly loses engine power and slows at a constant rate. It comes to rest after 75 seconds. a what is the acceleration during this time ? b how far did the care travel before ...
*August 8, 2014 by Jeannine*

**algebra1**

the problem is 5f+7 less than or equal to 22. can anyone please work this out for me and check it for me? and what i mean by checking it is like when you get the answer you check it and make sure its write.
*October 1, 2013 by erica*

**econ.**

If the reserve requirement is 20% and a bank doesn't have excess reserves, why would a $100 deposit lead to a greater than $100 increase in the money supply. because of the money multiplier. A $100 deposit (e.g., into a checking account) gives the bank both a $100 liability ...
*May 6, 2007 by Carter*

**Pre-Calculus-check answers**

Which of the following results in the graph of f(x)=x^2 being expanded vertically by a factor of 3 and reflected over the x-axis? a) f(x)= (1/3)x^2 b) f(x)= -3x^2 c) f(x)= (-1/x^2)+3 d) f(x)=(-1/3)x^2 Answer: d Thanks for checking my answers
*August 10, 2008 by Lucy*

**English**

Could you please check these statements, please? Thank you. 1) the first who trusts/to trust are both possible? 2) "Let's check the answer to those exercises" She proposed checking the answers... She told/ordered us to check.... She suggested checking the answers She ...
*January 6, 2012 by Henry2*

**math**

from the expression below, which one is not factorable? 1)x^2+4x+6 2) 3ab^2-16a 3)x^2-441 4)4x^2+19x-5 I thought the answer was 2) b is not in the second part of the equation(the 16a) Is this correct? Thanks for checking my work
*February 10, 2014 by B8*

**Calculus (Area Between Curves)**

Find the area of the region IN THE FIRST QUADRANT (upper right quadrant) bounded by the curves y=sin(x)cos(x)^2, y=2xcos(x^2) and y=4-4x. You get: a.)1.8467 b.) 0.16165 c.) 0.36974 d.) 1.7281 e.) 0.37859 Based on my calculations, I would say that the answer is e.) 0.37859. I ...
*February 29, 2012 by Mishaka*

**stats-please help**

repost MEAN=10 & STANDARD DEVIATION =2. FIND THE PROBABILITIES: 9.4 less than X less than 10.6 i have 2 different answers but am checking the answer. thank you one is 0.6179 the other is 0.2358
*March 8, 2011 by jean *

**Physics( Checking answer)**

Sorry for re-posting but I really need to know if I did it right. Please someone help! Two 3.0g bullets are fired with speeds of 40.0 m/s and 80.0 m/s respectively. What are their kinetic energies? Which bullet has more kinetic energy? What is the ratio of their kinetic ...
*October 31, 2010 by Cory*

**geography**

I am just checking to see if my son's answer is right. Which of the following professional teams play home games in cities located on an ocean: New York Yankees, Chicago White Sox, Los Angeles Dodgers, Cleveland Indians? My son has his answer as Los Angeles Dodgers only
*May 9, 2011 by a Mom*

**algebra (checking answer)**

f(g)=(x-4)^2+6 Sketch a graph of f(x): 4 on y axis and up 6 Identify the vertex: (4,6) Identify the intervals where f(x) is increasing or decreasing: it increasing [6,00) Thanks for your help:-)
*February 20, 2013 by Anonymous*

**Algebra**

Checking two problems : 1. x^2-7x+12 / x^2-16 = (x-3)(x-4) / (x-4)(x+4) (x-4) cancels out Answer (x-3)/(x+4) 2. x^2-3x+2/7x-14 divide by x^2-1/7x+7 x^2-3x+2/7x-14 * 7x+7/x^2-1 (x-1)(x-2)7(x+1)/7(x-2)(x-1)(x+1) To me it looks like everything cancels out, is that possible?
*November 6, 2007 by John*

**science**

Is distillation a chemical or physical change? My answer is a physical change. Is this Correct? My Mom wrote to ask you guys to check her checking my answers. Who is right?
*September 17, 2012 by Reed*

**Civics **

Ms.Sue would you mind checking my answer? Question~How does the constitution protect someone's freedom of speech while also limiting their freedom of speech? Answer~ we are allowed to state our opinion as long as it-does not taken someone's rights away, doesn't permit you to ...
*November 23, 2013 by Kali*

**Algebra**

Checking some homework, Perform the indicated operations (x2 11x + 4) (-2x2 + 2x 6) (x2+ 6x 5) I took away the parenthesis and put the like terms next to each then added and subtracted the likes terms. Answer : 2x^2 - 19x + 15
*October 21, 2007 by John*

**Math**

The question is that the length of a rectangle is 15 and its width is w. The perimeter of the rectangle,at most,50. Which inequality can be used to find the longest possible width? A. 30+2w<50 b. 30+2w<or=50 c.30+2w>50 d. 30+2w>or=50 so I did L=15 p=2(15)+2w<or=...
*June 7, 2013 by Gail*

**Algebra**

Take the real-life situation and create an equation or inequality that could be used for analysis, prediction, or decision making. Then, draw a graph to depict the variables in your situation. Use your graph and what you know about linear inequalities to discuss the ...
*July 2, 2007 by Evevlyn*

**Algebra**

After solving a rational equation, why is it important to check your answer? How is this done? What happens if you are checking a solution for the rational expression and find that it makes one of the denominators in the expression equal to zero?
*October 6, 2011 by Hazel*

**algebra**

after solving a rational equation, why is it important to check your answer? How is this done? What happens if you are checking a solution for the rational expression and find that it makes one of the denominators in the expression equal to zero?
*January 26, 2012 by debby*

**math**

rewritten as a power of 2 with a rational exponent, the expression 4*squared root of 2 would equal which of the following. 1) 2 so 2 is just 2 2)2^2 which would =4 3) 2^5/2 this =5.65 4)2^5 this=32 4*square root of two=5.65 so I believe the answer is 3. Is that correct? Thanks...
*February 9, 2014 by B8*

**Algebra II**

Find cos theta if sin theta = 3/5 and 90 degrees<theta<180 degrees. Is the answer -sqrt34/5? Appreciate you checking my anwers.
*April 19, 2008 by Lucy*

**Math - Two-Step Inequalities - Please Help**

I need help with this one, please. Which of the following is in the solution set of the inequality 3 > 3t + 6? A. -1/3 B. 1/3 C. 4 D. -4 I did a Pre-Test for my lesson, and it says I got this one wrong. However, it doesn't say which one I picked. For this one, is C the ...
*December 19, 2014 by Brady*

**Physics (just checking it)**

q:The electricity revised at an electric substation has a potential difference of 2.80 10^5V, if the required output is 440 V. what should be the ratio of the turns of the step-down transformer? a: 28000/440= 636
*June 4, 2008 by BAdams*

**math**

the perimeter p of a rectangle can be found using the formula p=2(l+w) where l represents the length and w represents the width. which equation represents the width in the terms of p and l. a) w=2(p-l) b)w=p-l/2 c) w=2p-1 d) w=p/2-1 p=2l+2w p-2l/2=w p/2-l=w the answer would be...
*December 19, 2013 by B8*

**math**

On November 1,2009, Broom Company received a bank statement that showed a $2,950 balance. Broom showed a $4,010 checking account balance. The bank didn't return check No.124 for $1,080 and check No.138 for $720. A $3,200 deposit made on Oct30 was in transit. the bank charged ...
*August 30, 2012 by no name*

**Social Studies**

Please help me by checking the following answer to the question. Which of the following was part of the Great Compromise reached at the Constitutional Convention? A. Every state would have two seats in the Senate. B. Some slaves would be included in the population count. C. ...
*April 8, 2014 by Brady*

**math**

Question 2 of 20 5.0 Points In the equation x = 6 - 2y, x and y are: A. directly related. B. inversely related. C. both dependent variables. D. not related. Reset Selection Mark for Review What's This? Question 3 of 20 5.0 Points John puts $780 into his checking and savings ...
*October 19, 2014 by Kim*

**Algebra II**

Log6(6^9)=??? Answer: 9 Ine^-3x=??? Answer: -3x Use log5(2) = 0.4307 and log5(3) = 0.6826 to approximate the value of log5(12) Answer: log5(2) + log5(3)=log5(2^2*3) 2(0.4307) + 0.6826=1.544 so approximate value of log5(12)=1.544 I appreciate your checking my work.
*March 29, 2008 by Lucy*

**Math - Please Check My Answer - Probably Last One!**

Please help me with the following: The volume of a cylinder is found using the formula V=πr^2h,where r is the radius of the base and h is the height. The volume of a rectangular prism of the same width (2r) and height h, as the cylinder, is found by multiplying the area ...
*October 2, 2014 by Brady*

**maths, variations checking!**

question: given that y is inversely proportional to (x-1), A) express y in terms of x and a constant k b) give that y=5 when x=3, find x when y=25 answer: A)y=-k(x-1) y=-kx+k B)y=5, x=3, k(constant)=3x5 k=15 25=-15x+15 10=-15x x=-10/15 is this correct? i'm not too sure about ...
*December 18, 2007 by hayley*

**other Quadratic equations**

The problem is 7x^3-x+1=x^3+3x^2+x. Find all real answers. I came upwith two answers 3x^2=1 and 2x=1/2. The first answer just does not look right. I must be forgeting something! You can check them by putting in x=1/4 (the second answer), and then x=+- sqrt(1/3) These are three...
*January 27, 2007 by theresa*

**Physics**

I posted something concerning this question earlier.. and thank you for checking and letting me know of my mistake. I said that for a given velocity, the height does not depend on the mass of the ball. How could I explain this, besides the fact that when calculuting it, I don'...
*October 14, 2007 by Marisol*

**Math**

Ms.Sue would you mind checking my work? ----------------------------------------- Paulo has $145 his saving account. He earns $36 a week mowing lawns. If Paulo saves all of his earnings, after how many weeks will he have $433 saved? My answer~ 8 weeks
*January 8, 2014 by Anonymous *

**math**

Miriam is four years older than Ricardo. 10 years ago she was 3 times as old as Ricardo was then. A) How old are they now B) determine whether your answer is correct by checking that it satisfies the conditions of the problems
*November 23, 2013 by Kay*

**Algebra I**

Write an equation based on the given facts and find the solution. Show all your work, including the steps for solving the equation and checking your answer. 2 times a number plus 12 is 110. Find the number.
*May 31, 2012 by Kasey*

**Math**

One-third of Derick's age two years ago is equal to a quarter of his age four years from now. How old is he now? Please provide the following: -Representation -Equation -Solution -Answer -Checking
*March 9, 2013 by RR*

**Calculus (Checking Answer)**

Find the antiderivative by hand in each case. S stands for the integral sign A) S x*sqrt(10 + x^2) dx So, u= 10 + x^2 du= 2xdx du/2= xdx (1/2) S sqrt(u) du (1/2)*((u^(3/2))/(3/2)) (1/2)*(2/3)*(u^(3/2)) (1/3)*(u^(3/2)) = (1/3)*(10 + x^2)^(3/2) correct/incorrect? B) S (x/(sqrt(2...
*April 5, 2011 by Chelsea*

**statistics**

My problem is to graph a system of inequalities (which ive done) and introduce slack variables to convert the system of inequalities to a system of equations. So I am building my table and all is easy until I get to the point where S1 and S2 are both zeros or S1 and S3 are ...
*February 6, 2012 by JUGRNOT*

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