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April 18, 2014

April 18, 2014

Post a New Question | Current Questions

**algebra**

How do i solve 8y to the 2nd plus 30y plus 13
*Tuesday, February 21, 2012 at 9:35pm*

**physics**

2nd part...(ma)(v0 + 1/2at) a = 9.8 Havent figured out first part either
*Monday, February 20, 2012 at 9:57pm*

**Chemistry**

No. It is 2nd order with respect to XO but third order over all (which should tell you the exponent for O2.
*Monday, February 20, 2012 at 4:50pm*

**Chemistry**

Ok thank you. I know what I was doing wrong. I was just hitting the e^x button and I was getting a different answer. I have to hit the 2nd button first and then e^x on my calculator.
*Tuesday, February 7, 2012 at 4:47pm*

**math**

Strange way to type it, I read it as 8x-9y = -15 -4x = 19+y I would double the 2nd: -8x = 38+2y or 8x + 2y = -38 8x - 9y = -15 subtract them 11y = -23 y = -32/11 sub into original 2nd -4x = 19 - 23/11 -4x = 186/11 x = -186/44 x = -186/44 , y = -23/11
*Monday, February 6, 2012 at 10:29pm*

**English 7 - Journal Entry Check**

English Homework: Journal Entry Due Tomorrow Topic - Dicuss a time when you made a decison to do something (Determination), and perservered as a result. Please check my journal entry to see if it's good. Determination When I first came in the 7th grade at (school name), I ...
*Thursday, February 2, 2012 at 5:38pm*

**Math**

2nd to last question I meant to put dog not god. I might have some other mistakes
*Tuesday, January 31, 2012 at 5:05pm*

**2nd Semester**

You're welcome, Laruen.
*Sunday, January 29, 2012 at 12:30pm*

**2nd Semester**

OK Thank You Ms. Sue!
*Sunday, January 29, 2012 at 12:26pm*

**2nd Semester**

More advice: Pay very close attention in class. Ask questions if you don't understand something.
*Sunday, January 29, 2012 at 12:24pm*

**2nd Semester **

2nd Semester begins tomorrow and I won't be having art anymore I'm having facs. So is there any useful tips you teachers would like to give me to get me a head start next semester. there are tons of things next semester passport day at my school, exams, fun events, ...
*Sunday, January 29, 2012 at 12:16pm*

**Algebra**

Make a diagram distance during first bounce - 15 ft distance during 2nd bounce - 2(15)(3/5) distance during 3rd bounce = 2(15)(3/5)^2 distance during 4th bounce = 2(15)(3/5)^3 etc from the 2nd term on, we have a geometric series where a = 2(15)(3/5) = 18 and r = 3/5 and the ...
*Sunday, January 29, 2012 at 9:07am*

**physics**

rank higest to lowest air drag? 1)a 5lb lead block teraveling at 95% terminal speed. 2a 5lb styrofoam block at terminal speed? 3)a10lb styrofoam block traveling faster than terminal speed? 4)a 10lb styrofoam block at terminal speed? put in orderfrom least air drag,2nd least ...
*Thursday, January 26, 2012 at 12:53pm*

**Grade 11th Physics**

i studied that in 6th grade lol
*Tuesday, January 24, 2012 at 5:08pm*

**math**

sorry yes 2nd problem should be 1/9
*Monday, January 23, 2012 at 9:28pm*

**Geometry**

point symmetry about (0,0) means that (x,y) becomes (-x,-y) Looks like the 2nd choice to me.
*Wednesday, January 18, 2012 at 2:10pm*

**arithmetic**

sum of n terms of 1st = (n/2)(10 + 36(n-1)) = (n/2)(36n - 26) sum of 2n terms of 2nd = (2n/2)(72 + 5(2n-1)) = n(10n + 67) (n/2)(36n - 26) = n(10n + 67) divide by n, and multiply by 2 36n - 26 = 20n + 134 16n = 160 n = 10 check: sum(10 for 1st) = 5(10 + 36(9)) = 1670 sum(20 for...
*Monday, January 16, 2012 at 11:11pm*

**7th grade Math**

you say: 4:3 = 8:6 (14 marbles) why not keep going... 14 marbles or 28 , or 42 , 56 , .... 3:2 = 9:6 (15 marbles) why not keep going 15 marbles or 30, 45 , ... when are they the same ? What number divides by both 15 and 14 ? 210 So suppose each bag has 210 marbles first bag: 4...
*Wednesday, January 11, 2012 at 11:01am*

**Math**

Enter the equation into a graphing calculator. Then use the zero function under the 2nd Trace menu. Find the zeros.
*Tuesday, January 10, 2012 at 9:50pm*

**Math**

take the original true equation A = (1/2)bh then 2A = bh is the true statement after multiplying each side by 2 now take each of the answers and simplify by cross-multiplying 1st is obviously correct 2nd: b = 2A/b ---> b^2 = 2a , incorrect 3rd: 2b = A/h ----> 2bh = A, ...
*Tuesday, January 10, 2012 at 11:01am*

**Precal**

perils of copy/paste: 2nd and 4th lines should read f(x)-g(x) and f(x)/g(x)
*Wednesday, January 4, 2012 at 4:33pm*

**Pattern Help?**

Isn't the 2nd number increasing by 7 for each increase of 1 in the 1st ? so clearly y =7x + 1
*Monday, January 2, 2012 at 5:21pm*

**Question**

Senior class is the only class I'm doing (because like there is 9th grade class, and 10th grade class, and 11th grade class) because it's the most important grade. Gradution, prom, scholarships, SAT's and ACT's, awards, colleges application, it's a lot so ...
*Friday, December 30, 2011 at 12:28pm*

**math**

I think I see systems of equations: 1.) 6x - 3y = 6 y= 2x + 5 2.) y= -2/3x +4 2x + 3y = -6 3.) x+y=0 x=y+4 4.) 3x - 4y = -5 x = y+2 All you need to do here is set up things in a standard way and solve the pairs of equations. I'll do #2 and you can try the others. #2. y= -2...
*Tuesday, December 20, 2011 at 11:25am*

**Calculus**

In the 2nd question (rate of water rising now), how do you calculate r?
*Sunday, December 18, 2011 at 4:06pm*

**Gov**

Who is sometimes viewed as 2nd powerful federal official after the president?
*Tuesday, December 13, 2011 at 9:19pm*

**science**

what about the 2nd question?
*Tuesday, December 13, 2011 at 4:29pm*

**Pre-algebra**

1. (6x+1)(x^2 - 9x + 5). Multiply 6x by each term in the 2nd parenthesis. Then multiply 1 by each term in the 2nd parenthesis: 6x^3 -54x^2 + 30x + x^2 - 9x + 5, Combine like-terms: 6x^3 - 53x^2 +21x + 5. 2. Same procedure as #1. 3, (12y^3 + 8y^2 + 20y) / 2y. Divide each term ...
*Sunday, December 11, 2011 at 6:53pm*

**Spanish-7th grade**

1. "Mary Beth" is a female's name so the adjective must be "enferma." 3. too many verbs = remove one "es" (the 2nd one) 4. Because the subject is plural (nsotros), the adjective must be also = inteligentes 5. estar vs ser = estar means "...
*Saturday, December 10, 2011 at 11:52pm*

**ALgebra**

(1) GCF= 1 (2) GCF= x^2 I'm pretty sure for the 2nd problem it's x^2 but I don't know about 1 x;
*Wednesday, December 7, 2011 at 11:14pm*

**Calc**

drwls gave you the first half of the solution. where are you getting stuck in the 2nd part?
*Tuesday, December 6, 2011 at 12:08am*

**8th Grade **

Me and my friend are making our own 8th grade binder, you know like writing down planns for our 8th grade year. Here are the sections: - To-Do-List - Doodles (if you are bored) - Projects that are do (school plans) - Graduation Plans (speech, to-do-list, etc.) - Dates for ...
*Monday, December 5, 2011 at 8:15pm*

**Algebra**

That last term in the 2nd last row of course is 1(2^4) or 16
*Monday, December 5, 2011 at 10:33am*

**Physics**

Use Newtons 2nd law to solve this We know Sum of forces in y=0 mv^2/r 59(9.8+(3.0^2/6.4))=T T=661N
*Sunday, December 4, 2011 at 2:30pm*

**Math**

#1 times 5 ---> 5x + 15y = 5 add to the 2nd 19y = -19 y = -1 sub into x+3y=1 x-3 = 1 x = 4 x=4, y = -1
*Thursday, December 1, 2011 at 5:49pm*

**math 3rd grade**

you would not know i went to law school my 5th time doing third grade. Of course honors classes BUT how do they expect the parents to remember.
*Wednesday, November 30, 2011 at 10:01pm*

**English**

1. comma needed 2. OK 3. OK You can also refer to these verb forms as the 2nd and 3rd principal parts of a verb. The 1st principal part of a verb is the basic form. 1st principal part (present): walk, talk, teach, sing... 2nd principal part (simple past): walked, talked, ...
*Tuesday, November 29, 2011 at 10:11am*

**astronomy**

Ok so I figured out that 29% of earth's mass is contained in its core. I just don't know how to proceed with the 2nd part of this question.
*Tuesday, November 22, 2011 at 6:46pm*

**ALGEBRA**

If we are just using natural numbers, 1st is 2 2nd is 4 ... nth is 2n
*Sunday, November 20, 2011 at 10:45pm*

**My Awards (to share with teachers) **

oops made a mistake completion of 6th grade not 8th grade srry about that
*Saturday, November 19, 2011 at 3:28pm*

**Another Question **

Each grade gets tougher as you go allow. For me 8th grade was not that bad. The grades that you get in 8th grade do not go towards your high school gpa unless you are taking a high school credit course. But, even so, you still want to try your best! If you are in 8th grade or...
*Saturday, November 19, 2011 at 10:36am*

**Social Studies 7R (Letter) **

i MEAN I TRIES USING MY NOTES ALSO U HELP ME ON THE LAST SUPPORTING DEATIL FOR THE 2ND PARAGRAPH!
*Thursday, November 17, 2011 at 7:57pm*

**English**

Yes, I agree with C for the 2nd question.
*Thursday, November 17, 2011 at 4:20pm*

**SLOPE MATH**

The grade of a road is its slope given as a percent. for example, a road with a 6% grade has a slope 6/100. it rises 6 feet for every 100 feet of horizontal run. describe a 100% grade. Do you think you could drive up it?could you walk up it? Is it possible for a grade to be ...
*Tuesday, November 15, 2011 at 11:38am*

**math**

the grade of a road is its slope given as a percent. for example, a road with a 6% grade has a slope 6/100. it rises 6 feet for every 100 feet of horizontal run. describe a 100% grade. Do you think you could drive up it?could you walk up it? Is it possible for a grade to be ...
*Monday, November 14, 2011 at 1:33pm*

**Algebra**

First answer is correct for the 2nd, find 28000(1 - .2)^6 I got $7340.03
*Monday, November 14, 2011 at 11:12am*

**Science **

this is 7th grade science for other teachers if you dont know what grade im in
*Monday, November 7, 2011 at 8:41pm*

**derivatives**

How do I find the 2nd derivative of x^(-1/15)
*Friday, November 4, 2011 at 1:56am*

**8th grade math**

yeah i did ask my teacher if i could go back to regular math but then she decided that she will decide on my quiz score and i got a good grade
*Thursday, November 3, 2011 at 9:34pm*

**science**

so for the 2nd question is the answer c?
*Wednesday, November 2, 2011 at 5:58pm*

**Spanish 8th grade**

1. Because the question used an infinitive "hacer" I would use the infinitive in the answer = "esquiar." 2) es practicar el fútbol americano = BUT the 2nd half of the questions asks you why and you haven't answered that part 4) Sí, la ...
*Wednesday, November 2, 2011 at 5:36pm*

**Ms.Sue August or Anonymous**

Narrow it down for the 2nd one :D
*Tuesday, November 1, 2011 at 7:50pm*

**Logic**

Gene will teach 7th grade of Gene will teach 8th grade. If Gene teaches 7th grade, he will be assigned to the Sunset Road School. Gene will carpool with Chris if he is assigned to the Sunset Road School. If Gene teaches *th grade he will have his daughter Briana in his class. ...
*Sunday, October 30, 2011 at 10:35pm*

**Physics**

a.)1st-> 2.5*2 = 5kg 5kg(9.8m/s^2) = 49N 2nd-> 2.5kg(9.8m/s^2)= 24.5N b.)1st-> 5kg(9.8m/s^2 - 1.70m/s^2) = 5kg(8.1m/s^2) = 40.5N 2nd-> 2.5kg(8.1m/s^2) = 20.25N
*Friday, October 28, 2011 at 10:28am*

**SCIENCE**

What is the name of the 2nd biggest planet in our solar system?
*Thursday, October 27, 2011 at 9:22pm*

**alegebra 2**

what is y=16x to the 2nd power-2x-5
*Thursday, October 27, 2011 at 9:07pm*

**Calculus (Continuity)**

To be continuous, the functions should have the same value at the transition values of x First transition value: x = 0 at x = 0, 3x^2 - 2x + 1 = 1 and acosx + b = acos(0) + b = a+b since they wanted the value of a+b and we know its value is 1 we are done: a+b = 1 check: at x...
*Saturday, October 22, 2011 at 10:03pm*

**Spanish**

Check the 2nd again = él lleva Sra
*Saturday, October 22, 2011 at 3:46pm*

**math**

the 2nd line of the e.g.'s should say 537^1 = 537 vs 7^1 = 7
*Friday, October 21, 2011 at 8:35pm*

**English**

2) in the eyes, not at 3) not wordly; you might use "literally" 7) has gone to 2nd place 8) is falling Sra
*Wednesday, October 19, 2011 at 8:39pm*

**geometry**

ONE SIDE IS 57 AND 2ND SIDE 15.FIND PARALLEL DISTANCE
*Tuesday, October 18, 2011 at 2:53am*

**English**

1) yes 2) the 2nd half is unfinished? Sra
*Monday, October 17, 2011 at 8:18pm*

**statistics**

A study of graduates average grades and degrees showed the following results: B.S. Degrees, 15 graduates averaged Grade A, 8 graduates averaged Grade B, and 5 graduates averaged grade C. Graduates who had a B.A. Degree, 8 averaged grade A, 12 averaged grade B, and 7 averaged ...
*Saturday, October 15, 2011 at 8:05pm*

**child development**

thanks Ms. Sue. the 2nd one i think its Concrete Operational Stage?
*Friday, October 14, 2011 at 1:21pm*

**Algebra**

speed of 2nd car -- x speed of 1st car -- x+20 time for 2nd car to go 135 km = 135/x time for 1st car to go 180 km = 180/(x+20) but aren't these two the same ? Continue .... In the second question, it looks like you did not finish the part where it tells us what the ...
*Tuesday, October 11, 2011 at 8:50am*

**Applications of Multipication**

Is my answer to that 2nd question 221/17? I think I did something wrong.
*Saturday, October 8, 2011 at 10:01pm*

**math**

3x+y+2z=1 x+2y-z=-8 3x-y-3z=18 after I isolate x what is the 2nd equation
*Friday, October 7, 2011 at 8:42pm*

**8th grade History**

well first you should probably finish second grade then go from there!
*Tuesday, October 4, 2011 at 5:00pm*

**Algebra 2 (Linear Programming)**

The Carbon coal company has 2 mines, a surface mine ad a deep mine. it costs $200 per day to operate the surface mine and $250 to operate the deep mine. Each mine produces a medium grade and a medium-hard grade coal, but in different proportions. This surface mine produces 12 ...
*Tuesday, October 4, 2011 at 1:52am*

**Letter to Teacher **

This is a good 7th grade letter. It is a terrible 12th grade letter. When you were inquiring about Harvard, you said you were in 7th grade.
*Sunday, October 2, 2011 at 7:31pm*

**Letter to Teacher **

Oh I mads a mistake i'm in the 12 grade i'm a 12th grade i was thinking about 7th grade sorry about that
*Sunday, October 2, 2011 at 7:19pm*

**Algebra**

Ever heard of google? wikipedia? You may have a calculator which allows you to switch among radians, degrees, and "grad" units. Guess what grads are? The grade. On a highway you may see a sign near a steep hill, saying steep grade ahead: 6%. The gradient is measured ...
*Friday, September 30, 2011 at 4:22pm*

**sociology HS 2nd year**

What are some of the rules that the caste system imposes?Give me the ans in point ways.
*Tuesday, September 27, 2011 at 10:36am*

**Math**

You'ree Welcomee 2nd Graderss![:
*Monday, September 26, 2011 at 7:26pm*

**physics**

Put given a,b,c,x values 1st problem is solved.2. To find 2nd put v= 0 and solve the quadratic equation.
*Sunday, September 25, 2011 at 1:47am*

**physics**

1. t = (Vf - Vo) / a, t = (0 - 26) / -1.5 = 17.33s. d = (Vf^2 - Vo^2) / 2a, d = (0 - (26)^2) / -3 = 225.33m = stopping distance for lead car. d = 49 + 225.33 = 274.33m = Required stopping distance for the chasing car. a = (Vf^2 - Vo^2) / 2d, a = (0 - (40)^2) / 548.66 = -2.92m/...
*Friday, September 23, 2011 at 7:58pm*

**7 th grade math**

if all my grades are above an 80 how will a 38 affectn my grade.
*Thursday, September 22, 2011 at 8:52pm*

**MATH HELP PLEASE**

original number of mangoes = x after king: amount left = 5x/6 after queen amount left : (4/5)(5x/6) = (2/3)x after prince, amount left = (3/4)((2/3)x = (1/2)x after 2nd prince, amount left = (2/3(1/2)x = (1/3)x after 3rd prince, amount left = (1/2)(1/3)x = (1/6)x (1/6)x = 3 x...
*Wednesday, September 21, 2011 at 8:18pm*

**Algebra II**

I will assume you are using elimination, although there are several other methods. In elimination, you first have to decide which variable you want to eliminate. Usually that is determined by choosing the simplest coefficients, in this case I would go for z 1st: x-y + 3z = 4 ...
*Tuesday, September 20, 2011 at 8:32pm*

**8th grade math**

2/4 as a fraction
*Monday, September 19, 2011 at 4:26pm*

**Math**

use grouping the first: a^3 - 3a^2 + 3a - 9 = a^2(a - 3) + 3(a - 3) = (a - 3)(a^2 + 3) do the 2nd the same way.
*Friday, September 16, 2011 at 11:20pm*

**Math Help!!!!!**

What is the 2nd bank's discount rate?
*Friday, September 16, 2011 at 5:12pm*

**third grade math**

can some one help me what is 4 times 8
*Tuesday, September 13, 2011 at 7:19pm*

**English**

1. comma needed in 2nd sentence 2. OK 3. OK 4. use "in" not "of"; otherwise, OK 5. Who is "M"? Otherwise OK.
*Monday, September 5, 2011 at 4:02pm*

**algebra**

first one: fundamental error : -7 - 2 = -9 , not 5 2nd: correct
*Sunday, September 4, 2011 at 9:11pm*

**Math**

If you are getting a B in everything else in this class but you don't do any of the news item write ups(which are 9% of your grade, then will your final grade be a B? If not a B, then what will your final grade be?
*Friday, September 2, 2011 at 4:22am*

**Algebra **

In a class of 110 students, 22 received the grade of A. what fraction of the students did not receive the grade A?
*Wednesday, August 31, 2011 at 12:16am*

**Writing**

Good paragraph -- you have found the same types of results from WritePoint that I used to get from MS Word's grammar checker -- almost completely useless!! Keep your content the same, but think about these things: contradictory, instead of "contradicting" Your ...
*Wednesday, August 24, 2011 at 3:28pm*

**Calc AB**

from the 2nd, t = y/2 into the 1st: x = (y^2/4 + 3 4x = y^2 + 12 looks like a parabola.
*Thursday, August 18, 2011 at 5:50pm*

**algebra**

what is 4.14 times 10 to the 2nd power ?
*Thursday, August 18, 2011 at 4:21pm*

**English**

What is the role of homework in learning 2nd language?
*Thursday, August 11, 2011 at 4:10pm*

**English**

There are still wordy places, but overall, it's much improved. Now to dive into the rest. I'd combine your 2nd and 3rd paragraphs' ideas into a new 2nd paragraph -- pruning redundancies and making it more concise. http://grammar.ccc.commnet.edu/grammar/c...
*Monday, August 8, 2011 at 8:03pm*

**algebra**

2nd question shortcut: or a straight line, use x/(x-intercept) + y/(y-intercept) = 1 x/-1 + y/2 = 1 multiply each term by -2 2x - y = -2 done.
*Sunday, August 7, 2011 at 12:25am*

**how to write 2nd may 2011 in 5 letters without usi**

no
*Thursday, July 28, 2011 at 6:10am*

**Math**

We draw 2 rt triangles with a common ver side: 1. Draw a rectangle with the long sides hor. 2. Draw a diagonal from the upper rt corner to the lower lt corner. This is the hyp of the larger triangle.The angle bet. the hyp and hor is 35 deg. 3. Draw a 2nd hyp from the upper rt ...
*Monday, July 25, 2011 at 10:25pm*

**math**

ar^2 = 8 ar^5 = 125 divide the 2nd by the 1st .... r^3 = 128/8 r = 5/2 back into the first a(25/4) = 8 etc.
*Friday, July 22, 2011 at 8:24pm*

**english**

Sorry this was my 1st and the one above is my 2nd. Imagine being 6’3” in the eighth grade and everyone in the school making comments about your height. There are definitely advantages and disadvantages to being tall. My best friend’s mother sent me a quote ...
*Sunday, July 17, 2011 at 9:43pm*

**how to write 2nd may 2011 in 5 letters without usi**

I know this guysss
*Wednesday, July 13, 2011 at 5:00am*

**Math**

18 people enter a race, if there are no ties, how many ways can 1st, 2nd and 3rd place result?
*Saturday, July 9, 2011 at 5:00pm*

**10th Grade Chemistry**

I struggle in the sciences and was wondering what I could do over the summer self studying wise to prepare for 10th grade chem?
*Thursday, July 7, 2011 at 7:00pm*

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