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July 26, 2014

Homework Help: 2nd Grade

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Chemistry-help needed
0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from brownish-yellow to green. 1ml of 0.1M perchloric acid is equivalent to 34....
Wednesday, March 9, 2011 at 4:58pm

5th grade math
3m=63
Tuesday, March 8, 2011 at 5:26pm

math
Girls are one-half of the fifth grade class.Two-tenths of these girls have red hair.Red haired girls are what fraction of the fifth grade class?
Wednesday, March 2, 2011 at 7:54pm

algebra
Evaluate each logarithm. 3 to the 2nd power x plus five equals 9x plus 1. I can't seem to type the actual problem, which is why I wrote it out. I hope I wrote the problem right.
Monday, February 28, 2011 at 6:26pm

Unix Script
"Using "if" statement checks for a file called "student.txt" in the current directory. Removes (deletes) the file if it exist. This file will collect last name, first name, and grade for 5 people. Use a while loop to get the information (last name, ...
Saturday, February 26, 2011 at 9:43am

Chemistry-help needed
Can we use an ACS/AR grade chemical for UV spectrophotometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?
Monday, February 21, 2011 at 5:15pm

Finance Homework/ Have 2nd Part Need Calculate1st
An investment will pay $100 at the end of each of the next 3 years, $400 at the end of Year 4, $600 at the end of Year 5, and $700 at the end of Year 6. If other investments of equal risk earn 8% annually, what is its present value? What is its future value? Round your answer ...
Friday, February 18, 2011 at 11:01am

Chemistry-pls help
Can we use an AR grade chemical for UV spectrophotometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?
Thursday, February 17, 2011 at 2:39pm

Chemistry-help needed
Can we use an AR grade chemical for UV spectrometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?
Thursday, February 17, 2011 at 9:10am

6th grade science fair project
Each week up until fair time we have to turn in one aspect of our project. This week it deals with our conrol, dependent and independent variables and constants. I will tell you that I got my idea form sciencebuddies. My project is Ocean Currents: Modeling the 'Global ...
Wednesday, February 16, 2011 at 10:00am

Math
Frank has a 65% chance of receiving an A grade in geology, a 60% chance of receiving an A grade in mathematics, and a 77% chance of receiving an A grade in geology or mathematics (or both). Find the probability that he receives A grades in both geology and mathematics. I get: ...
Saturday, February 12, 2011 at 9:05pm

Statistics - can someone check me
Frank has a 65% chance of receiving an A grade in geology, a 60% chance of receiving an A grade in mathematics, and a 77% chance of receiving an A grade in geology or mathematics (or both). Find the probability that he receives A grades in both geology and mathematics. P(geo ...
Saturday, February 12, 2011 at 5:33pm

math
What's the minimum. length of the arc on the cicumference of the earth,where a curvature of the horizon is appearent? OR---What's the max.length of cord,drawn on the cicumference of the earth,where length of the cord appears same as arc? Follow up 2nd question---At ...
Sunday, February 6, 2011 at 11:44am

Math
I need help with these three math question. 1st question. What is the additive inverse of 5 on the 12-hour clock? 2nd question. What is the equivalent number on the 12-hour clock. -22 the choices for this question is, 5 or 2 or 3 or 1. 3rd question. I need to find the additive...
Saturday, February 5, 2011 at 9:10pm

Pre-Calculus
74. Road Grade When driving down a mountain road, you notice warning signs indicating that it is a "12% grade." This means that the slope of the road is -12/100. Approximate the amount of horizontal change in your position if you note from elevation markers that you ...
Thursday, February 3, 2011 at 4:48pm

algebra
A roof rises 1.4 feet vertically and 11.8 feet horizontally. What is the grade of the roof? The grade of the roof is _____% how do I begin to find the answer to this
Monday, January 31, 2011 at 4:54pm

6th grade math
what is 1/4*1/2=4d?
Sunday, January 30, 2011 at 12:12pm

advance algebra
find three numbers such that the second is 6 less than 3 times the first , and the third is 2 more than 2/3 of the 2nd.The sum of the three numbers is 172. use x=1st number y=second number z= 3rd number please help...thanks a lot!!
Wednesday, January 19, 2011 at 5:56am

science
3 forces act concurrently on an object. First force acts 75 N north. 2nd acts 100 N east. 3rd acts 89 N at 15 degrees south of west. What is resultant force? b) what is equilibrant?
Monday, January 10, 2011 at 10:50pm

6 grade math
Dividing 22/7 / 5
Monday, January 10, 2011 at 7:23pm

HELP MATH
lee looked at the results of an exam he had just given to his grade 2 math class. he saw that louise had a score of 95%. he also saw that the standard deviation for the test was 0. if arif was also in his grade 2 math class, what mark did arif get on the exam?
Thursday, January 6, 2011 at 3:12pm

Math 12
sum of 2nd and 5th terms of a geometric sequence is 13. the sum of the 3rd and 6th is -39. determine: a) the ratio "r" of the sequence b) the first term "a" of the sequence
Wednesday, January 5, 2011 at 5:25am

4th grade
IF R X R X R = 27 AND R X B = 6 WHAT IS THE VALUE OF B X B X B
Monday, January 3, 2011 at 7:44pm

4th grade
if b x w = 24, b x b = 16 what is the value of w x w?
Monday, January 3, 2011 at 6:42pm

law
Over the past decade, some countries have shown high crime rates while other countries have lower crime rates. For example, the lowest homicide rates in 2000 existed in Saudi-Arabia and Japan, while France and Germany had the highest homicide rates. Their rates, however, were ...
Sunday, January 2, 2011 at 7:27pm

law
What are some of the ways that organized crime impacts you and a community and/or city (of your choice) directly? (This element will account for 20% of your grade.) What are some of the ways that law enforcement agencies are working to reduce these types of organized crime in ...
Sunday, January 2, 2011 at 7:27pm

5th grade
7 5/12 - 5 7/12
Tuesday, December 14, 2010 at 5:38pm

Math 7th grade
40/n = 28/22 what is n?
Monday, December 13, 2010 at 11:20pm

11th grade
20xsquared+40 x+15=0
Monday, December 13, 2010 at 8:22pm

Algebra
How do I start to solve -2log8(x+1) = -8? I think -2log8(x+1) is log8^(x+1)to the 2nd but then what do I do because then I think I should do log-8/log8 = x+1)^2 but that doesn't work at all Thank you for any help you can give
Monday, December 13, 2010 at 7:49pm

chemistry
Based on molecular mass and boiling point of the five compounds in the table below, which should have the high? est dipole moment: first # molecular mass 2nd: boiling point compound 1 244 203 compound 2 346 255 compound 3 250 138 compound 4 246 146 compound 5 241 100 i know ...
Monday, December 13, 2010 at 4:22pm

Math 8th grade
.02(2X-3)-0.03(3x(.2)=-.02
Sunday, December 12, 2010 at 8:06pm

chemistry
x + 2y ---> products is first order in c and 2nd order in y. what are the units of K, the specific rate constant, if the reaction rate is expressed in units of moles per liter per sec. I know the answer is M.s^-1^ but I don't understand this concept. could you explain ...
Sunday, December 12, 2010 at 5:41pm

chemistry
From this information- a + c_2_ ---> ac + c Slow ac + a ---> a_2_c Fast 2a + c_2_ ---> a_2_c + c Overall -you know that it is 1st order in a, 1st in c2, and 2nd overall. how? what about a reaction being fast or slow tells you if it's in first or second order?
Sunday, December 12, 2010 at 5:39pm

chemistry
SF4 ---> SF2 + F2 rate constant (k) = .011 l/molxS [SF4]2 How many minutes will it take for the concentration of SF4 to be reduced from 2.5 M to .25 M? I said this was a 2nd order reaction and used : (1/final)= kt + (1/initial) and solved for t. the answer should be 5.5. I ...
Sunday, December 12, 2010 at 4:10pm

fractions
Mr.shafier has been teaching school for 10 years.For 6 of those years he taught 8th grade.what fraction represents the time Mr.shafier has not been teaching 8th grade?I knoe the answere is 2 5ths. but how do i show work?HELP!!!!!!!!!!!!!!!
Sunday, December 12, 2010 at 2:39pm

8th grade
Solve 3r + 18 ¡Ü 6r
Saturday, December 11, 2010 at 1:01am

10th grade
If ab=6y & bc=8y What is BD In Terms Of Y.??
Friday, December 10, 2010 at 2:05pm

7th grade
how do i solve a+3/5=24/25
Thursday, December 9, 2010 at 7:47pm

5th grade
What is the mode of these # 19,20,32,26
Wednesday, December 8, 2010 at 4:43pm

7th grade
2(2.5b-9) + 6b= -7 what is b
Wednesday, December 8, 2010 at 2:54pm

12th grade
How many moles are in 8.8*10 to the 34
Tuesday, December 7, 2010 at 6:25pm

10th grade
2x-y=-5 -2x-5y=11
Tuesday, December 7, 2010 at 1:47pm

6th grade
-20 / (-10)=
Tuesday, December 7, 2010 at 1:24am

6th grade
-17-(-5)
Tuesday, December 7, 2010 at 12:22am

math
franklin school has 3 boys for every four girls in the fifth grade. there are 140 students in the fifth grade. a.how many are boys? b.how many are girls?
Monday, December 6, 2010 at 7:24pm

6th grade
what is 30 1/4-29 1/3
Monday, December 6, 2010 at 4:26pm

10th grade
if AB=3x-2 and BC=x+6, what is x?
Sunday, December 5, 2010 at 5:20pm

religion
According to the Cow (2nd sura of Qur’an), Muslims a) must not be the aggressor in war b) should avoid violence at all cost c) must formally declare war before attacking d) may not mistreat captives
Saturday, December 4, 2010 at 10:44pm

8 th grade math
2a+ab=c solve for a
Wednesday, December 1, 2010 at 10:24pm

Science (6th grade, but actual 7th grade paper)
We are learning about potential and kinetic energy. There are two ramps. One is short and the other is long. The long one is labeled A, and the short one is labeled B. On which one would a marble go the farthest after touching the ground?
Tuesday, November 30, 2010 at 6:37pm

Ashford SAP for FINANCIAL AID
I have read in the handbook about SAP.I pass 2 of 3 courses but my GPA IS 2.0 AS REQUIRED.My grade A- C+ and F which is 62.24%,since when has a grade of 62 is a F???? I know it is a D.If I am mistaken about what in the handbook for SAP so be it,but I am going to withdraw ...
Tuesday, November 30, 2010 at 2:44am

math urgent
2 rainstorms occurred in one week in a certain area in the first storm, 15ml of rain fell per hour, and in the second storm, 20ml of rain fell per hour. rain lasted for a total of 40 hours, resulting in a total rain of 675ml. how long was each storm. 1st storm = hours 2nd ...
Monday, November 29, 2010 at 11:16pm

5th grade
what is 9 /24794
Monday, November 29, 2010 at 4:42pm

statistics
In one history class, 34 students took an exam. The mean of the exam was 52 with a standard deviation of 13. If the instructor is going to assume data are normally distributed and assign grades on a curve, then she will assign an A to the top 10% of the class, B's to the ...
Monday, November 29, 2010 at 12:35pm

math
did you know when you try to find the least commen multiple of 3 numbers you have to divide by two after you get your answer my class (ms.lott in texas) told us that for some reason its doubling the number so always divide by two once you have crossed out the commen numbers ...
Sunday, November 28, 2010 at 6:56pm

arithmetic
THE SUM OF THE 2ND AND 5TH TERMS OF AN A.P IS 42. IF THE DIFFERENCE BETWEEN THE 6TH AND 3RD TERM IS 12, FIND THE: COMMON DIFFERENCE, 1ST TERM, 20TH TERM.
Friday, November 26, 2010 at 5:41am

6th grade
What is 5/8 of 1/50?
Monday, November 22, 2010 at 8:45pm

Computer Programing & Logic Design
Submit pseudocode and a flowchart for the following programming exercise: Test Average and Grade Write a program that asks the user to enter five test scores. The program should display a letter grade for each score and the average test score. Design the following functions ...
Saturday, November 20, 2010 at 9:35am

5th grade (thomas)
6 - m = 2 and 3/10
Wednesday, November 17, 2010 at 9:42pm

5th grade
6-m=2 3/10 would that be m=3 7/10 thank you.
Wednesday, November 17, 2010 at 9:33pm

5th grade
what number is 3/8 of 6?
Wednesday, November 17, 2010 at 9:21pm

algebra
Mixture Problems Template – Price Problems Copy the problem from the lesson: 1. A store manager wishes to reduce the price on her fresh ground coffee by mixing two grades. If she has 50 pounds of coffee which sells for $10 per pound, how much coffee worth $6 per pound ...
Wednesday, November 17, 2010 at 4:12pm

11th grade
Solve for x:9x^2-49=0
Tuesday, November 16, 2010 at 9:29pm

8th grade
(18 - (-4))divide (-11) (-4) + 2
Tuesday, November 16, 2010 at 5:26pm

4th grade algebra
What is 16 - 10 - 2 - 3 = ? What is 8 - 2 - 2 - 2 = ? What is 10 - 3 - 3 - 4 = ? What is 8 - 5 - 5 - 5 = ? What is 7 - 7 - 7 - 7 = ? What is 12 - 15 - 10 - 8 = ? What is 3 - 7 - 4 - 2 = ? What is 9 - 3 - 6 - 5 = ? What is 11 - 9 - 6 - 6 = ? What is 6 - 5 - 4 - 3 = ? What is 13...
Tuesday, November 16, 2010 at 1:22pm

world issues- amazon deforestation
Hi. I was assigned an essay that I have to get done by 2morrow. It is about Amazon rainforest deforestation. I have to sum everything up into 3 paragraphs. 1st paragraph- tell what's happening here; I already did this. 2nd & 3rd paragraphs- describe how you would stop ...
Tuesday, November 16, 2010 at 11:47am

Math
About 3/4 of the track team are girls. About 3/4 of these girls are in 8 th grade. What fraction of th e students are grade 8 girls? 1/3?
Sunday, November 14, 2010 at 9:08pm

9th grade
1+9a-8=8a
Sunday, November 14, 2010 at 8:34pm

8th grade math
7z - z
Saturday, November 13, 2010 at 5:44pm

PHYSICS-LAW OF THERMODYNAMICS
A dinner plate drops and breaks. This best illustrates the ______ law of THERMODYNAMICS A. 1st b. 2nd c. 3rd d. 4th I am inclined to say the 1st because energy can be neither created nor destroyed, it can only change forms. Thus the plate falling lost it's energy as a ...
Saturday, November 13, 2010 at 8:46am

Physics
Beatrice throws the 1st calculator straight up from the edge of the roof of a building. She drops a 2nd calculator off the side of the building 2 seconds after she has thrown the first one. If the height of the building is 40m, what must the initial upwards velocity of the 1st...
Friday, November 12, 2010 at 1:31pm

5th grade
what is 1/5 of 10
Thursday, November 11, 2010 at 9:14pm

math
At 3 pm a plane left the airport for LA traveling at 600 mph. At 3:30, another plane left the same airport on the same route traveling 650 mph. What time did the 2nd plane overtake the first. A. 5:15 pm B. 6:45 pm C. 6:50 pm D: 7:15 pm E: 9:30 pm Is D correct?
Sunday, November 7, 2010 at 8:52pm

grade 1 math
wat iz 15-7?
Friday, November 5, 2010 at 11:33pm

math
The 1st web is twice as larger the 2nd web and the 3rd web is 3in longer then the 1st web 18in
Friday, November 5, 2010 at 1:05am

6th grade
What does 22x11= Thanks for your help!
Wednesday, November 3, 2010 at 9:43am

7th grade
4n+8=9n-7
Tuesday, November 2, 2010 at 12:36am

11th grade
x+y>1
Sunday, October 31, 2010 at 4:05pm

10th grade
BC=3x+2 and CD= 5x-10. Solve for x.
Saturday, October 30, 2010 at 5:51pm

6th grade math
How many 1/6s are in 1? How many 1/6s are in 1/2 ?
Wednesday, October 27, 2010 at 11:26pm

math - check plz
She has 2 to the 10th power of fruit flies in each of 2 to the 2nd power. How many fruit flies does she have in all? (answer as power) 2to the 11th power?
Monday, October 25, 2010 at 7:11pm

Calc
If f(x)= sec x, find f"(Pi/4) I am not sure how to take the 2nd derivative? f'(x)= sec x tan x f"(x)=??? Is it f"(x)= (sec x tan x)(sec^2x)??? Please Help!
Sunday, October 24, 2010 at 11:17pm

grade 9 algebra
8x-5y-x=9-y
Sunday, October 24, 2010 at 9:54pm

math
A math teacher calculates grades as follows:Grade=[2 test averages+quiz average/3] After 3 tests and 2 quizzes your test average is 83 and your quiz average is 89. You took your fourth test today and noticed that your overall average grade has dropped to an 83. What was your ...
Sunday, October 24, 2010 at 4:29pm

AED 201
I am looking for information on the use of technology in school. I need the 1st and 2nd event from 1980, 1990 and 2000. Ive been searching since yesterday. I do not want the answers, just pointed in the right direction. I guess im not searching right or something Thank you.
Saturday, October 23, 2010 at 10:35am

AP Physics
A marble is dropped from a height of 10 m. A 2nd marble is rolled off a 10 m table at 5 m/s. A 3rd marble is fired at 5 m/s at an angle of 45 degrees off the table. Which one is going 15 m/s when it hits the ground?
Thursday, October 21, 2010 at 9:39pm

6th grade
what hatchet
Thursday, October 21, 2010 at 7:16pm

8th grade
78=3c+12-c+4 solve
Thursday, October 21, 2010 at 6:03pm

6th grade
what is 3/10 divided by 13/14
Wednesday, October 20, 2010 at 6:56pm

Maths Calculus Derivative Integral - Urgent Please
Use 2nd Fundamental Theorem of Calculus to find derivative of f(x) = integral of 2x^2 (at the top) to x-5 (at the bottom) of square root of Sin(x)dx
Monday, October 18, 2010 at 8:26am

Math 7th grade
6 11/12 - 4 5/12
Sunday, October 17, 2010 at 9:09pm

Math 7th grade
12 - 5 3/10
Sunday, October 17, 2010 at 9:08pm

7th grade
what is 14 1/2 - 7 1/5?
Sunday, October 17, 2010 at 9:01pm

probabilityv
A school's administrators are concerned about absenteeism at their school and the e ect it has on students' grades. The following data were compiled, based on a sample of students. Student's Absent Medium Absent Grade Infrequently Absent Frequently Low 1 9 8 ...
Saturday, October 16, 2010 at 2:17am

5th grade
What do you think 24*3.7 is ???
Thursday, October 14, 2010 at 3:58pm

Health
How to develop a filing system and determine the number of shelves and the like that will be needed. hospital has asked to keep hard copy records for 4 years. number for the first year 25,000, 2nd - 28,000, 3rd - 32,000 and fourth 40,000
Tuesday, October 12, 2010 at 9:16pm

5th grade
what is the lcm of 15,25
Tuesday, October 12, 2010 at 8:20pm

8th grade
HOW TO CONVERT IN TO MM?
Tuesday, October 12, 2010 at 11:34am

8th grade
is 53 a monomial
Monday, October 11, 2010 at 9:39pm

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