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April 23, 2014

Homework Help: 1st Grade

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chemistry
A pH of 9.27 is between the 1st and 2nd equivalence points; therefore, the solution is a mixture of H2A^- and HA^2-. I would use the Henderson-Hasselbalch equation and solve for the Base/Acid ratio. That should tell you which species predominates.
Friday, May 13, 2011 at 8:07pm

8th grade math
a basketball player scored 8 pts total during 1st and 2nd quarters of a game. During the 3rd quarter she scored 3 times as many pts as she did in the 4th quarter. Let P = the # of pts the player scored in the 4th quarter. Write and simplify an expression to represent the total...
Wednesday, May 11, 2011 at 12:52pm

statistics
what the error is: a) Grade Percent Frequency A 20% B 45% C 30% D 10% F 5% (b) The following table summarizes the grade breakdown on an exam in a small statistics class with 10 students. Grade Percent Frequency A 30% B 35% C 15% D 20% F 0%
Monday, May 9, 2011 at 2:57pm

Physical Science
Hi... well anyways so I am in 7th grade but I'm taking 8th grade science...I think...I know for sure that I am in Accelerated 7th grade science so if that helps at all, there you go:) Back to the subject I'm really confused with acceleration calculation and velocity, ...
Monday, May 2, 2011 at 7:55pm

calculus
sorry, there is no product rule here in the 1st derivative, but there will be one in the 2nd
Sunday, May 1, 2011 at 7:52pm

math
Guys, here is the answer. Ball is dropped from a height of 15 feet and each bounce it goes to 3/5 as high as the preceding one. Now, total distance traveled in: 1st drop:15 (till it hits the ground) 2nd drop:(15*3/5)=9*2=18 [Multiply by 2 as distance to go up (15*3/5) and to ...
Sunday, April 24, 2011 at 8:11pm

algebra
1st Step Have each each scenario equal each other 120 + .40x=230+.35x x-2200 For all amounts over 2200 plan be will save her money
Thursday, April 21, 2011 at 12:45am

Algebra
Rate of 2nd cyclist = X mi/h. Rate of 1st cyclist = (x+10) mi/h. Eq1: d2 = Xt = 210mi. X = 210 / t. Eq2: d1 = (X+10)(t-2.4) = 210mi. In Eq2, substitute 210/t for X: (210/t+10)(t-2.4) = 210, 210-504/t+10t-24 = 210, -504/t+10t-24 = 210-210, -504/t+10t-24 = 0, Multiply both sides...
Wednesday, April 20, 2011 at 5:26pm

Speech
the 1st one i picked b the 2nd i picked d
Wednesday, April 20, 2011 at 10:56am

Maths
In decimal fraction 3.01208000 1st and 2nd zeros are significant, 3rd, 4th, 5th aren't
Tuesday, April 19, 2011 at 7:11pm

geometry
The 1st point could be at 0 deg. Then the 2nd point would be 5 deg West of North.
Sunday, April 17, 2011 at 9:27pm

spelling
All of those words have th or ch or sh in them. Where in each word is the "h"? 1st? 2nd? 3rd? Where? Then put them in order.
Wednesday, April 13, 2011 at 6:20pm

all
Click on 8th grade under GRADE LEVELS on the left.
Sunday, April 10, 2011 at 8:21pm

4th grade math
at my school most of us make the same grade so......................
Thursday, April 7, 2011 at 6:39pm

4th grade
everybody knows long division in 4th grade where i'm at they teach it in 3rd grade
Thursday, April 7, 2011 at 5:08pm

College Algebra
Charlie can grade exams in 2 hours. It takes Mark 6 hours to grade the same exams. If they work together, how long will it take for them to grade the exams?
Wednesday, March 30, 2011 at 12:36pm

math
I am sure you meant: (a+b)/5 = (b+c)/6 = (c+a)7 = k 1st = 2nd: -----> 6a + 6b = 5b + 5c b = 5c - 6a (#1) 1st and 3rd: ----> 7a+7b = 5a+5c 2a = 5c-7b (#2) sub #1 into #2 2a = 5c - 7(5c-6a) c = 4a/3 2nd and 3rd: 6a+6c = 7b+7c c = 6a-7b (#3) so 4a/3 = 6a - 7b 4a = 18a - 21b...
Monday, March 28, 2011 at 8:41am

math
Use a tangent function to estimate the grade resistance of a 2200-lb car travelling on a 2.4° grade. Round your answer to the nearest pound.
Wednesday, March 23, 2011 at 6:05pm

math
Use a tangent function to estimate the grade resistance of a 2200-lb car travelling on a 2.4° grade. Round your answer to the nearest pound.
Wednesday, March 23, 2011 at 6:05pm

math
how do you rewrite the expression to the 1st power of cosine by using power-reducing formulas? PLEASE AND THANK YOU :D sin^2xcos^4x
Monday, March 21, 2011 at 12:51am

History Question
That's really your own opinion. What I would do is research some important amendments. I like the 1st - freedom of speech.
Sunday, March 20, 2011 at 9:29pm

11th grade
Did you get an answer for this? I'm in 9th grade and am doing the same problem
Sunday, March 13, 2011 at 9:59am

double integral
1. Sketch the region of integration & reverse the order of integration. Double integral y dydz... 1st (top=1, bottom =0)... 2nd(inner) integral (top=cos(piex), bottom=(x-2)... 2. Evaluate the integral by reversing the order of integration. double integral sqrt(2+x^3) dxdy... ...
Friday, March 11, 2011 at 12:13am

maths
The probabilities of a student getting grade A, B, C and D are 0.2, 0.3, 0.15 and 0.35 respectively. Then the probability that the student gets 1) At least C grade is __________ 2) At most C grade is ___________
Thursday, March 10, 2011 at 1:44am

Science
The skydiver has fries and a milk shake. Whay is he so nervous? Because he is???????? 4 words total.. The 1st and 2nd are 2 letters. The 3rd and 4th are 3 letters. Using these letters to solve UTAHNIIEUR
Monday, March 7, 2011 at 9:14pm

Writing
This looks good -- although I wouldn't capitalize the team names. I can't give you a grade because I don't know what your assignment was, your teacher's expectations, nor your grade level.
Monday, March 7, 2011 at 9:02pm

algebra
for similar triangles, the ratio of the sides of the first triangle is equal to the ration of the corresponding sides of the second triangle,, like: let h1 = height of 1st triangle let h2 = height of 2nd triangle let b1 = base of 1st triangle let b2 = base of 2nd triangle ...
Saturday, March 5, 2011 at 7:15pm

8th grade
i have this at 7th grade
Wednesday, March 2, 2011 at 5:49pm

6th grade science
What are Newton's three laws on motion in sixth grade lingo?
Tuesday, February 22, 2011 at 9:47pm

AP physics
See 1st link below under Related Questions. This almost exact problem was answered.
Friday, February 18, 2011 at 9:18pm

6th grade science fair project
My 1st variable change is-- Heat applied, - Agreed my 2nd variable change is--item appling the heat(candle versus sterno can), -Agreed my 3rd variable change is--spot of heat application (depth). -Agreed My Dependent variable is---velocity of the currents. Agreed this is the ...
Wednesday, February 16, 2011 at 10:06am

ap chem
Convert pH 3.0 to (H^+) using pH = -log(H^+). Convert pH 5.6 to (H^+). Divide 1st by the 2nd to find the ratio acid/normal
Monday, February 14, 2011 at 12:23am

math
Please check your 1st post for an answer before reposting. This question was answered earlier today.
Saturday, February 12, 2011 at 9:02pm

math
A = Lw 12y^3+48y^2+24y Factor into 2 factors. 1st factor = w 2nd factor = L
Thursday, February 10, 2011 at 9:07pm

math !!!! :O
Your question was answered . See your 1st post. Please have patience. Tutors volunteer their time to answer your questions. If you haven't received an answer after 6 - 12 hours, then repost.
Wednesday, February 9, 2011 at 9:15pm

algebra
A = Lw 16y^7 + 32y^5 + 80y^3 Factor into 2 factors. 1st factor = w 2nd factor = L
Wednesday, February 9, 2011 at 8:02pm

WRITING(CHOCOLATE BAR)
can u tell me the rating of this chocolate bar? if it was rated 1st, 2nd etc...
Tuesday, February 8, 2011 at 8:30pm

REPORT CARD QUESTION
hoh yes im o the 1st class !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS​SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS​S
Monday, February 7, 2011 at 6:40pm

English
When you are doing a bibliography and your book shows 15 different cities it was published can you list just the 1st city....can't find the answer. Thanks
Sunday, February 6, 2011 at 7:42pm

Physics
The initial velocity of 1st bounce is much higher and continues to get lower after each bounce.
Saturday, February 5, 2011 at 4:26pm

Algebra
Please check your 1st post. Also, please have patience. Tutors volunteer their time answering questions. Sometimes an answer is given very quickly and other times it could take a few hours.
Friday, February 4, 2011 at 9:32pm

COLLEGE ALGEBRA
Please don't repost without checking your 1st post for an answer. See your post below.
Thursday, February 3, 2011 at 9:55pm

4th grade
hi i cant find the stupid answer im in 4th grade inrichment i NEED help!!!!
Wednesday, February 2, 2011 at 3:35pm

geometry
Please do not repost a question without first checking your original post. See your 1st post. This question was answered.
Tuesday, February 1, 2011 at 9:07pm

math 5th grade
I need help on 5.9 (A) im fifth grade.....
Tuesday, February 1, 2011 at 8:12pm

math
On the 1st day the movie opened 35 people saw it. On the 2nd day 16 more people came than on the 1st day so that 86 people had seen the movie after the second day. On the 3rd day 67 people came, 16 more than on the 2nd day, If each day 16 more people saw the movie than the day...
Monday, January 31, 2011 at 8:26pm

Statistic
Delisha/James, please see your 1st post at 1:21 am under "James". Your post was answered there.
Monday, January 31, 2011 at 1:01pm

geometry
Your post was answered below. Please don't repost a question without first checking to see if your 1st post was answered.
Friday, January 28, 2011 at 1:21am

Help
Yes, x = 3 See your 1st post. I had a typo, and corrected it below.
Thursday, January 27, 2011 at 7:49pm

math
See the 1st link below under Related Questions. This exact problem was answered.
Wednesday, January 26, 2011 at 7:16pm

Math
See 1st link below under Related Questions. This exact question was answered.
Wednesday, January 26, 2011 at 2:54pm

Physics
See the 1st link below under Related Questions. A similar problem was answered.
Tuesday, January 25, 2011 at 11:41pm

Physics
See the 1st two links below under Related Questions. This almost exact problem was answered.
Tuesday, January 25, 2011 at 10:48pm

Trig
See your 1st post for the answer. And, please check your original post for an answer before reposting.
Tuesday, January 25, 2011 at 10:31pm

math
Duplicate post. See your 1st post.
Tuesday, January 25, 2011 at 9:14pm

Math
See your 1st post below. I just finished your problem. Let me know if you think I understood your problem.
Tuesday, January 25, 2011 at 5:35pm

Algebra
x = 1st angle 2x = 2nd angle x + 2x = 180 Solve for x
Saturday, January 22, 2011 at 6:59pm

phy
see 1st link below under related questions. a very similar question was answered.
Friday, January 21, 2011 at 7:49pm

Geometry
sorry, I didn't know that. you should have said that in your 1st post above. the tutors would see that this question was answered and refer you to the original answer.
Friday, January 21, 2011 at 7:40pm

biology
see 1st link below under related questions. this exact question was posted recently. a link is provided with info that you might find useful.
Friday, January 21, 2011 at 6:58pm

Statistics
see 1st link below under 'Related Questions' for this exact problem
Friday, January 21, 2011 at 2:59pm

third grade hw help
My third grade is needing help with his science homework please the question is as follow List as many resources as you can that you use during one day? Thanks!
Wednesday, January 19, 2011 at 7:43pm

math
see post above or look at answer to the 1st time you posted this below
Thursday, January 13, 2011 at 8:56pm

algebra
see 1st link below under related questions
Thursday, January 13, 2011 at 8:54pm

MATH
I posted twice, just ignore the response @ 9:43 pm saying "ignore" my 1st post with your problem solved is correct
Wednesday, January 12, 2011 at 9:50pm

math
The player that goes 1st gets all of the odd numbers including # 29.
Wednesday, January 12, 2011 at 8:05pm

algebra
see 1st link below under related questions
Wednesday, January 12, 2011 at 6:04pm

math
see 1st link below, this same problem was illustrated yesterday.
Tuesday, January 11, 2011 at 3:51pm

Math
Derive an Eq for the 1st prob. If it does not match, set-up the next problem. Continue until you find the Eq that matches. F. Amt requested = X dollars, Amt ea gave = (X + 20) dollars, Eq: 5(X + 20) = 500. Not a match. G. 1st acc. inv. X dollers. 2nd acc. inv. (X + 20) dollars...
Monday, January 10, 2011 at 6:44pm

Algebra
let a = 1st angle, b = 2nd angle a + 1/4 b = 63.75 a + b = 90 solve this set of equations for your answer
Saturday, January 8, 2011 at 9:49pm

business math
Scroll down and click on the 1st and 5th links there.
Thursday, January 6, 2011 at 2:16pm

3rd grade Math
I would be very interested to learn how a grade 3 teacher would handle this type of question without relying on algebraic methods such as shown above by PsyDAG and helper. This sure looks like some fancy advanced grade 3 stuff.
Thursday, January 6, 2011 at 12:46pm

math
Multiply the 2nd equation by 3 and you'll get 6x - 15y = -3 "Add" this equation to the 1st equation and you eliminate the y variable and get 14x = 10.Therefore, x = 5/7. Substitute this into one of the original equations and solve for y.
Sunday, January 2, 2011 at 3:57pm

3rd grade Shurley English
All are correct. That is very impressive for third grade level.
Wednesday, December 15, 2010 at 8:29pm

7th grade
Okay, so what are the axiom names? (honors math) Should this go in the 8th grade place? Oh well...
Monday, December 13, 2010 at 7:01pm

7th grade science?
Please identify the School Subject other than 7th grade. Sra
Monday, December 13, 2010 at 6:24pm

us history
he dosent so can u help me more like give me the answers i need help and its due 2morrew 1st hour.
Sunday, December 12, 2010 at 2:44pm

8th grade
8th grade is NOT the School Subject. Select that carefully so the right teacher will read and answer y our post. Sra
Saturday, December 11, 2010 at 1:48am

Math
2nd: C = B-A 3rd: C = A+A so B-A = 2A B = 3A In 1st: A^2 = 3A a^2 - 3A = 0 A(A-3) = 0 A = 0 or A = 3 if A=3, B = 9, C = 6 if A=0, B=0, C=0
Thursday, December 9, 2010 at 9:38pm

5th grade
how to do a double line graph with 2 superbowl teams scores with their mode median,and range for the first seven games. this is so hard for fifth grade. i need help
Thursday, December 9, 2010 at 12:42pm

6th grade
The School Subject is not 6th grade. Perhaps MATH ? Label carefully. Sra
Tuesday, December 7, 2010 at 2:27am

10th grade
10th grade is NOT the School Subject. Math, perhaps? Please label carefully so the right teacher will read and answer your post. Sra
Friday, December 3, 2010 at 8:54pm

Math
1st- 110 2nd- 55 3rd- 110 4th- 55 5th- 60 Pretty sure that's correct
Thursday, December 2, 2010 at 7:23pm

English(how is it?)
If the 12th grade was abolished, then the 11th grade would seem like 12th grade and the same thing would happen..
Thursday, December 2, 2010 at 10:22am

6th grade
Of the sixth-grade students surveyed, 12% bring their lunches to school. Suppose 24 sixth-graders do this? How many sixth-grade are at the school?
Wednesday, December 1, 2010 at 11:56pm

5th grade
Select the School Subject carefully = MATH, for example? Labeling it 5th grade, you take the chance of no one's reading it. Sra
Wednesday, December 1, 2010 at 10:44pm

7th grade
The School Subject should be math? Then the right teacher will read it and answer it. 7th grade means most people will skip it. Sra
Wednesday, December 1, 2010 at 5:58pm

4th grade
The School Subject is not 4th grade. Label it carefully (math, perhaps?) so the right teacher reads and answers it. Sra
Wednesday, December 1, 2010 at 10:10am

Science (6th grade, but actual 7th grade paper)
on the long ramp because it has a higher degree of potential energy
Tuesday, November 30, 2010 at 9:07pm

8th grade math
hi my name is kendall in 9 in 4th grade i want to skip grades im a nerd im very smart and I talk alot but I stop talkng in school so I hope you help me skip grades to 7th grade thank you.
Sunday, November 28, 2010 at 10:36am

MTH 156
Correct for the 1st one. For the second, since the width is the same, you can calculate the percentage decrease in the length. The third one has to do with LCM.
Saturday, November 27, 2010 at 12:33pm

6th grade
The School Subject is NOT 6th grade. Please label it carefully (MATH, for example?) so that the correct teacher will read your post & answer it. Sra
Monday, November 22, 2010 at 9:23pm

Accounting II
What would be the journal entry to record ten $2,000, 6%, 10 year bonds at 96 on January 1st?
Friday, November 19, 2010 at 7:28pm

6th grade
Please identify the School Subject carefully, not your grade, so the right teachers read and answer your post. Sra
Friday, November 19, 2010 at 12:00am

MATH HELP ME 1st
I'm sorry -- I meant that your subject is immature and rude. If the signs are the same, then the answers to multiplication and division problems are positive.
Thursday, November 18, 2010 at 7:29pm

MATH HELP ME 1st
lily? we learned if the signs are the same then its positive
Thursday, November 18, 2010 at 7:27pm

MATH HELP ME 1st
(-6) + (-4) = i think the answer is 10 or it could be -10
Thursday, November 18, 2010 at 7:22pm

8th grade
Please identify the School Subject correctly (MATH, for example, Algebra, etc.) for the correct teachers to read and answer your post. 8th grade will not do it. Sra
Thursday, November 18, 2010 at 10:51am

4th grade algebra
-21... oh the days of fourth grade... have fun!
Wednesday, November 17, 2010 at 8:26pm

math
At Smart Middle School students are required to take 7 classes each grading period. At the end of each grading period a student is assigned a final grade (A, B, C, D or F) for each class for the grading period. A student’s overall grade point average for the grading ...
Tuesday, November 16, 2010 at 11:18pm

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