Saturday

August 29, 2015
Total # Posts: 5,011

**Math/Calculus**

Solve the differential equation y'=3t^2+4. Solve the initial value problem y(0)=3. Separation of variables! My work: dy/dt= 3t^2+4 dy= 3t^2+4 dt Then you integrate both sides. ∫ dy= ∫ 3t^2+4dt Question: is there a 1 in dy? ( ∫ 1dy)? If so: y+C1=t^3+4t+C2 ...
*April 2, 2015*

**Civics**

5. A powerful committee of the U.S. Senate charged with finding ways to raise federal revenues is the _______ Committee. A. Ways and Means B. Appropriations C. Budget D. Finance D?
*April 2, 2015*

**Civics**

4. Which of the following choices best represents the organization of the executive branch of government? A. Senate, president, legislature B. President, Supreme Court, Congress C. President, executive departments, individual federal ...
*April 2, 2015*

**Civics**

3. The _______ form of city government merges executive and legislative functions in a single group of officials. A. township B. commission C. mayor-council D. city manager Not sure?
*April 2, 2015*

**GeneralChemistry**

What is the minimum amount of 6.7M H2SO4 necessary to produce 27.9g of H2 (g) according to the following reaction? 2Al(s)+3H2SO4(aq)→Al2(SO4)3(aq)+3H2(g) I dont know how to solve it, and I dont understand the explanation given online.
*April 2, 2015*

**math**

The figure below depicts a racetrack with ends that are semicircular. The length of the track is 660 ft (1/8 mi). Find l and r so that the area of the rectangular portion of the region enclosed by the racetrack is as large as possible. (Round your answers to the nearest foot.)
*April 1, 2015*

**chem**

If one pound (454g) of hexane combusts with 185 grams of oxygen which reactant is the limiting reactant and how many grams of carbon dioxide are produced? My work: 454 g C6H14 * 1 mol C6H14/86.18 g C6H14 * 6 mol CO2/ 1 mol C6H14 * 44 g C02/ 1 mol CO2= 1390.7 g/ CO2 185 g O2 * ...
*April 1, 2015*

**chem**

if one pound (454g) of hexane combusts how many grams of water are produced? my work: 454 g C6H14 * 1 Mol C6H14/86 g C6H14 * 7H20/1 mol C6H14 * 18 g O2/ 1 MOL H2O = 665.2 grams of H2O
*April 1, 2015*

**chem**

Agreed. In high school I was taught something else. Like multiply every thing by 2. To get a whole number. Thank you for your help
*April 1, 2015*

**chem**

Agreed. In high school I was taught something else. Like multiply every thing by 2. To get a whole number. Thank you for your help
*April 1, 2015*

**chem**

How many grams of CO2 are produced when 11.47 moles hexane combust? My work:I balanced the equation like so C6H14 + 19/2 O2 ==> 6CO2 + 7H2O My teacher taught us the 19/2 was valid My work: 11.47 mol C6H14 * 6 CO2/1 mol C6H14 * 44g/mol/1 mol CO2 = 3, 028 g of CO2
*April 1, 2015*

**chemsistry**

My work: 454 g C6H14 * 1 mol C6H14/86.18 g C6H14 * 6 mol CO2/ 1 mol C6H14 * 44 g C02/ 1 mol CO2= 1390.7 g/ CO2 185 g O2 * 1 mol O2/ 32 g O2 * 6 mol CO2/(19/2) mol O2 * 44 .0g CO2/ 1 mol CO2= 160.65 g/CO2 Limiting factor is O2
*March 31, 2015*

**chemsistry**

If one pound (454g) of hexane combusts with 185 grams of oxygen which reactant is the limiting reactant and how many grams of carbon dioxide are produced? how do I do this? How do I set it up?
*March 31, 2015*

**chemistry**

My work: 454 g C6H14 * 1 Mol C6H14/86 g C6H14 * 7H20/1 mol C6H14 * 18 g O2/ 1 MOL H2O = 665.2 grams of H2O
*March 31, 2015*

**chemistry**

If one pound (454g) of hexane combusts how many grams of water are produced? How do u set this up? Start it?
*March 31, 2015*

**chemistry**

I balanced the equation like so C6H14 + 19/2 O2 ==> 6CO2 + 7H2O My teacher taught us the 19/2 was valid My work: 11.47 mol C6H14 * 6 CO2/1 mol C6H14 * 44g/mol/1 mol CO2 = 3, 028 g of CO2
*March 31, 2015*

**chemistry**

How many grams of CO2 are produced when 11.47 moles hexane combust? Show work please
*March 31, 2015*

**Chemistry**

Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 4.00-g sample is burned, and 2.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
*March 30, 2015*

**Civics**

That's OK I'll chose A and see what happens.
*March 29, 2015*

**Civics**

2. One main difference between the United States Constitution and state constitutions is that state constitutions A. are much longer. B. don't provide for a legislature. C. can't be amended. D. don't have bills of rights. So ...
*March 29, 2015*

**Civics**

2. One main difference between the United States Constitution and state constitutions is that state constitutions A. are much longer. B. don't provide for a legislature. C. can't be amended. D. don't have bills of rights. ? Can...
*March 29, 2015*

**Civics**

1. Suppose Bill HR612 is currently in Congress. One thing you know about this bill is that it A. originated in the House of Representatives. B. has been vetoed by the president. C. has no riders attached. D. is currently in committee. A?
*March 29, 2015*

**Civics correction**

The answer is C I just answered and got it write.
*March 29, 2015*

**Civics correction**

3.Which one of the following statements is accurate for the Articles of Confederation. A. There was only one central court. B. Each state could veto a presidential decision. C. There was no president. D. Interstate commerce could be ...
*March 29, 2015*

**physics**

Part 2: Complete the following math problems by using the Law of Momentum Conservation. Formulas: i. Momentum = (mass) * (velocity) ii. Impulse = (Applied force) * (time) and Impulse = Change in Momentum iii. Applied Force = (Change in Momentum) / (time) iv. For multiple ...
*March 29, 2015*

**Civics**

What?
*March 29, 2015*

**Civics**

20. The governmental body responsible for interpreting the Constitution is the A. Supreme Court. B. president. C. House of Representatives. D. Senate. A?
*March 29, 2015*

**Civics**

19. Suppose a bill has passed both the House and the Senate. It goes to the president at the beginning of the annual session of Congress. The president doesn't sign the bill but holds it for more than 10 days. What happens to the bill? A. It becomes ...
*March 29, 2015*

**Civics**

13. The New Jersey plan called for A. a strong president. B. abandoning the Articles of Confederation. C. equal representation for all states in the Congress. D. the abolition of slavery. C? Could not find this question in my book or on ...
*March 29, 2015*

**Civics**

12. In 1900, how were members of the United States Senate chosen? A. They were elected by the people. B. They were appointed by their state legislatures. C. They were appointed by the governor of their state. D. They were elected by the ...
*March 29, 2015*

**History**

1) Why did the five powers directing the “Concert of Europe” from 1815-1823 believe they had a common interest in suppressing revolutionary activity across Europe? (Choose one) a. While differing in their constitutional make-up, all five agreed that radical ...
*March 28, 2015*

**Civics**

Supporters of the New Jersey Plan A. called for a legislature in which each state had one vote. B. rejected the idea of three branches of government. C. required that Senators be selected by a House of Representatives. D. ...
*March 27, 2015*

**Civics**

11. The purpose of the Constitution is presented in the A. Articles. B. Preamble. C. Bill of Rights. D. Amendments. B?
*March 27, 2015*

**Civics**

I know the New Jersey Plan question is not D.
*March 27, 2015*

**Civics**

10. John Quincy has been a citizen of the United States for 8 years. He is 27 years old. If John decides to run for Congress, what are his options? A. He can run for the Senate, but not the House. B. He can run for the House, but not the Senate. C.&...
*March 27, 2015*

**Civics**

Supporters of the New Jersey Plan A. called for a legislature in which each state had one vote. B. rejected the idea of three branches of government. C. required that Senators be selected by a House of Representatives. D. supported a ...
*March 27, 2015*

**Civics**

7. The original purpose of the Constitutional Convention of 1787 was to A. develop the principle of states' rights. B. solve the slavery issue. C. revise the Articles of Confederation. D. elect the first president of the United States...
*March 27, 2015*

**Civics**

4. An agreement to count slaves as three-fifths of a person was related to A. the denial of African Americans the right to vote. B. the number of Senators each state would have. C. the way in which population would be counted in each state. D.&...
*March 27, 2015*

**Civics to Ms.Sue**

My answer is B.
*March 27, 2015*

**Civics to Ms.Sue**

Ms.Sue said C wasn't correct.
*March 27, 2015*

**Civics to Ms.Sue**

Sorry I meant to say B and D.
*March 27, 2015*

**Civics to Ms.Sue**

3. Which one of the following statements is accurate for the Articles of Confederation? A. There was only one central court. B. Each state could veto a presidential decision. C. There was no president. D. Interstate commerce ...
*March 27, 2015*

**Civics**

3. Which one of the following statements is accurate for the Articles of Confederation? A. There was only one central court. B. Each state could veto a presidential decision. C. There was no president. D. Interstate commerce ...
*March 27, 2015*

**Civics**

2. The Eighteenth Amendment, "Prohibition," was reversed by the _______ Amendment. A. Twentieth B. Twenty-first C. Nineteenth D. Twenty-second B?
*March 27, 2015*

**Civics**

I said it was B,but Reed said read Ms.Sues link and I did.
*March 27, 2015*

**Civics**

I read it and it says two houses.
*March 27, 2015*

**Civics**

1. A bicameral legislature features A. one hundred equal representatives. B. two legislative bodies. C. four equal legislative bodies. D. one legislative body ?
*March 27, 2015*

**social studies**

Would it be d?
*March 26, 2015*

**social studies**

In a famous speech, William Jennings Bryan A. declared his staunch support of the gold standard. B. refused his nomination as the presidential candidate of the Populist Party. C. refused to be allied with the so-called "silverists." D. declared that mankind shouldn&#...
*March 26, 2015*

**geo**

A square has an area of 25. A rectangle has the same width as the square. The length of the rectangle is double its width. What is the area of the rectangle?
*March 26, 2015*

**Physics**

A diver leaves a 3-m board on a trajectory that takes her 2.8m above the board and then into the water 2.7m horizontally from the end of the board.At what speed and angle did she leave the board?
*March 26, 2015*

**Physics**

You can run 8.8m/s,20% faster than your brother. How much head start should you give him in order to have a tie race over 110m?please help:(
*March 26, 2015*

**math**

Let f(x)= 2x+1 and g(x) = 3x^2-4 find: a) f^-1 b) gof (-2) c) fog (x)
*March 25, 2015*

**Spanish II**

Write a paragraph using the preterite & the imperfect and tell about: ¿Cuál era tu pasatiempo favorito cuando tenias 12 años? 5-6 frases completas Here is the paragraph I wrote: Mi pasatiempo favorita cuando tenía 12 años era leer libros. Me ...
*March 24, 2015*

**Spanish**

Write a paragraph using the preterite & the imperfect and tell about: ¿Qué hacías o jugabas cuando eras niño (5 o 6 años) (a)? 5-6 frases completas Here is the paragraph I wrote: Cuando tenía 5 o 6 años que jugué muchos ...
*March 24, 2015*

**Criminal Justice**

. The largest category of convictions for felonies is: A) drug offenses. B) violent crimes. C) sexual crimes. D) property crimes.
*March 22, 2015*

**Maths**

Should be how many batches can she make out of 10 cups of mixture
*March 22, 2015*

**Maths**

I must come up with an maths model to solve this... Sally is baking some biscuits for a party. It takes 5/6 of a cup of mixture to make one batch. How many batches can she make out of cups of mixtures?
*March 22, 2015*

**English**

Is this correct Ms. Sue? 2. The day (after tomorrow) (is a holiday). 3. There are three new students (in the class) tonight. 4. Most of the applicants (for office jobs) type thirty words per minute. 5. Fewer people (have been attending) (the school games) this year. 6. (Will ...
*March 20, 2015*

**English**

I was just given this sheet in class and my teacher didn't help me at all.. She seems more concerned with her phone than teaching the class.. can someone help me do a few of these so I can understand? all prepositional phrases in parentheses. Underline the subject or ...
*March 20, 2015*

**LA**

What is the theme, tone, characters and authors intentions for the poem named Your Little Voice by E.E. Cummings
*March 19, 2015*

**English**

What does the “General Prologue” (in the canterbury tales) reveal about the values of society? How does the text reflect cultural attitudes? Look for patterns and repetitions. Do certain words, phrases, images or situations recur? Identify what effect those ...
*March 19, 2015*

**physics**

calculate the average angular acceleration and initial angular velocity of a wheel that has w=1.5wo(initial omega) at the end of 1min and w=45rev/sec at the end of 3min
*March 19, 2015*

**physics**

How do you set them equal to d. I am having a lot of trouble doing this.
*March 18, 2015*

**Physics**

How fast (in rpm) must a centrifuge rotate if a particle 8.55 cm from the axis of rotation is to experience an acceleration of 1000 g's? (use 9.8 m/s^2) You may assume constant angular velocity.
*March 17, 2015*

**Physics**

A 5.6 kg ball (I=2/3mr^2) starts on a hill 11.3 m above level surface of the ground. The ball then rolls (without slipping) down the hill. What is the linear speed of the ball when it reaches the bottom of the hill?
*March 17, 2015*

**Physics**

An ice skater with an initial moment of inertia of 1.44 kg*m^2 is spinning at a rate of 3 revolutions per second. As she extends her arm outward her moment of inertia increases to 2.52 kg*m^2. What is her new angular velocity (in rad/s)?
*March 17, 2015*

**LA**

Why did Robert Frost write the Road Not Taken? Why did Walt Whitman write O Captain! My Captain!?
*March 17, 2015*

**physics**

how can we derive the work-energy theorem form Newton's second law of motion?
*March 16, 2015*

**science help**

acceleration
*March 16, 2015*

**calculus check**

If siny=cosx, then find dy/dx at the point (pi/2, pi) A. -1 B. 0 C. 1 D. pi/2 E. None of these I got C
*March 15, 2015*

**Calculus check**

Let f(x) be a polynomial function such that f(3)=3, f'(3)=0 and f"(3)=-3. What is the point (3,3) on the graph y=f(x)? A. Relative maximum B. Relative minimum C. Intercept D. Inflection point E. None of these I got C
*March 15, 2015*

**Calculus check**

Given f(x)=x^4(2x^2-15). On what interval(s) is the graph of f concave upwards? A. (0, sqrt(3)) B. (-sqrt(3), 0) C. (-sqrt(3), 0) and (0, sqrt(3)) D. (-sqrt(3), sqrt(3)) E. (Negative infinity, -sqrt(3)) and (sqrt(3), infinity) I got E
*March 15, 2015*

**Calculus check**

An equation of the line tangent to y=sinx+2cosx at (pi/2, 1) is A. 2x-y=pi-1 B. 2x+y=pi+1 C. 2x-2y=2-pi D. 4x+2y=2-pi I got A
*March 15, 2015*

**Calculus check**

The smallest slope of f(x)=6x^2-x^3 for 0 is less than or equal to x is less than or equal to 6 occurs at x= A. 0 B. 2 C. 3 D. 4 E. 6 I got E
*March 15, 2015*

**Calculus check**

The limit as x approaches 1 (x^3-1)/(x^2-1) is I got 3/2
*March 15, 2015*

**Calculus check**

Find the equation of the line tangent to y=tan2x at x=pi/8 A. y-1=sqrt(2)(x-pi/8) B. y-1=1/2(x-pi/8) C. y-1=1/4(x-pi/8) D. y-1=2(x-pi/8) E. y-1=4(x-pi/8) I got A
*March 15, 2015*

**Calculus check**

Given f(x)=4+3/x find all values of c in the interval (1,3) that satisfy the mean value theorem. A. 2 B. Sqrt(2) C. Sqrt(3) D. +or- sqrt(3) E. MVT doesn't apply I got C
*March 14, 2015*

**Calculus**

if f'(x)=2(3x+5)^4 , then the fifth derivative of f(x) at x=-5/3 is A. 0 B. 144 C. 1,296 D. 3,888 E. 7,776 I got A
*March 14, 2015*

**Calculus check**

If f(5)=3 and f'(5)=-2, find the derivative of x^2f(x) at x=5. A. 0 B. -18 C. -12 D. -20 E. -80 I got D
*March 14, 2015*

** Calculus**

The normal (perpendicular) line to the curve y=sqrt(8-x^2) at (-2,2) has slope A. -2 B. 1/2 C. -1/2 D. 1 E. -1 I got A
*March 14, 2015*

**Calculus check**

The integral of (x^2-4secxtanx) dx= I got x^3/3-4secx+c
*March 14, 2015*

**Calculus check revised. **

y=-1/sqrt(x^2+1) , then dy/dx= A. x/(x^2+1)^1/2 B. x/(x^2+1)^3/2 C. -x/(x^2+1)^1/2 D. -x/(x^2+1)^3/2 E. x/(x^2+1) I got B.
*March 14, 2015*

**Calculus check**

Please disregard this question. Sorry and thank you.
*March 14, 2015*

**Calculus check**

y=-1/sqrt(x^2+1) , then dy/dx= A. x/(x^2+1)^1/2 B. x/(x^2+1)^1/2 C. -x/(x^2+1)^1/2 D. -x/(x^2+1)^3/2 E. x/(x^2+1) I got B.
*March 14, 2015*

**Calculus check**

If f(x)=sin^2(3-x) then f'(0)= A. -2cos3 B. -2sin3cos3 C. 6cos3 D. 2sin3cos3 E. 6sin3cos3 I got B
*March 14, 2015*

**Civics**

I should of known that answer a little bit earlier! But whatever.
*March 12, 2015*

**Civics**

The answer is D. I chose C and got it wrong.
*March 12, 2015*

**Civics**

12. Which one of the following statements is most accurate regarding the Mayflower Compact? A. It made Plymouth a royal colony. B. It created the Massachusetts Bay Colony. C. It founded the Plymouth colony under a proprietary governor...
*March 12, 2015*

**MATHS**

Please help - In a stationery shop, there were pens, erasers and rulers. There were thrice as many pens as erasers and thrice as many erasers as rulers at first.After the shop keeper sold 6 rulers and some erasers there were thrice as many pens as erasers but 4 times as many ...
*March 11, 2015*

**maths**

Need help on this, Please : there was a total of 1134 durians, papayas and apples in a basket. when 25% of the durians and 96 papayas were taken out and 252 more apples were put in basket, there were an equal number of the three types of fruits, How many of each type of fruit ...
*March 11, 2015*

**To Ms.Sue**

I MEANT FOR TOMORROW'S EXAM GEEZ, A STUDY GUIDE!😧
*March 10, 2015*

**To Ms.Sue**

Ms.Sue please check civics for me,it's the last of today!
*March 10, 2015*

**Civics**

This is a study guide for me not the final exam. I am just so used to saying exam and not study guide or whatever,jeeeeeeez.
*March 10, 2015*

**Civics**

How can I trust you and go with what you say this is an exam and I need someone to correct me and help me out. I like that Ms.Sue always helps me and corrects me wonder where she is? But thanks for the help it's appreciated :)
*March 10, 2015*

**Civics**

What about 17 and 20?
*March 10, 2015*

**Civics**

20. In 1775, the population of the colonies included about _______ African slaves. A. 100,000,000 B. 100,000 C. 500,000 D. 50,000 C?
*March 10, 2015*

**Civics**

19. In general terms, the heart of any representative democracy is A. the Senate. B. Congress. C. suffrage. D. a legislature. D?
*March 10, 2015*

**Civics**

18. The largest social class in Egypt or ancient Rome was made up of A. soldiers. B. farmers. C. artisans. D. traders. B?
*March 10, 2015*