Tuesday
May 31, 2016

Homework Help: 2nd Grade

trig
1st-the reason i keep change my name because some of my friends are using my computer by their own name to asked questions. we are having a hard time solving each trig problems 2nd- if sin theta=0.6 and 90 degree <theta < 180 degree, find the exact value of sin 2 theta. ...
Sunday, May 8, 2011 by minh

physics
If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...
Thursday, May 5, 2011 by Allison

Physics
If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...
Wednesday, May 4, 2011 by Allison

8th grade math
If the sum of 1! + 2! + 3! + 4! + ... + 49! + 50! is divided by 15, what is the remainder?
Wednesday, May 4, 2011 by Anonymous

8th grade math
2x-5y=14 3x+2y=40 what is the solve of xy ?
Tuesday, May 3, 2011 by Anonymous

8th grade math
2x-5y=14 3x+2y=40 what is the solve of xy ?
Tuesday, May 3, 2011 by Anonymous

5th grade math
how do you reduce 15/20 and 8/20?
Monday, May 2, 2011 by mary

8th grade math
3.5 X 10 ________ 7 x 10^-9
Sunday, May 1, 2011 by john

Chem Webwork UCI
Complete the table below: What is the pH of the solution created by combining 0.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH: 0.70 pH w/ HCl: 1.08 pH wHC2H3O2: 3.23 Complete the table below: What are the pH ...
Monday, April 25, 2011 by Michelle

math
There are 283 students in Walley's school and 59 of them are in the sixth grade. What is the approximate percent of student at Walley's school who are in the sixth grade
Wednesday, April 20, 2011 by Mecca

math
An average score of 90 or above in a history class receives an A grade. You have scores of 90, 89, and 85 on three exams. Find the range of scores on the fourth exam that will give you an A grade for the course. (Let N stand for your score on the fourth exam.)
Wednesday, April 20, 2011 by lucy

math algebara 8th grade
system of equations thank you 2x+3y-17 3x+y=31 2(x-3y)=24 y=3x-2 2(x+4)=24 x+y=17
Wednesday, April 20, 2011 by amey

Physics
Orange light (wavelength=600nm) is passes through a single slit. Use a=2000nm and L=2m. a) Determine the linear size on the screen of the 2nd maximum (not including the central maximum). b) Determine how many total maxima occur in the pattern. a) I thought for a single slit, ...
Monday, April 18, 2011 by Chelsea

Physics
Orange light (wavelength=600nm) is passes through a single slit. Use a=2000nm and L=2m. a) Determine the linear size on the screen of the 2nd maximum (not including the central maximum). b) Determine how many total maxima occur in the pattern. a) I thought for a single slit, ...
Monday, April 18, 2011 by Chelsea

Stat
P(A)=.10, P(B)=.30, P(C)=.40, P(D)=.10, P(F)=.10. Determined the expected grade and variance for the course.
Sunday, April 17, 2011 by RB

MAth
I don't know how to begin this one-help Janie bought 2 pairs of identical jeans at a sale.she paid regular price for the 1st pair and paid half price forthe 2nd pair.if the the total cost was $45.00,what was the regular price of the jeans? 2x-1/2x=45 ??
Friday, April 15, 2011 by Caroline

grade nine math Polynomials
4s + 3 -s = -6
Wednesday, April 13, 2011 by peyton

Calculus AB (AP)
Hi, I have a calculus test tomorrow and I understand how to complete all of the problems, but I am unsure behind the reasoning of taking two derivatives. Can someone please explain the following: 1. g(x)=e^(f(x)) g'(x)=e^(f(x))f'(x) 2. f(x)=Integral from 0 to 3x of the...
Wednesday, April 13, 2011 by Jake

4th grade math
write the digit 5's value
Tuesday, April 12, 2011 by megajolt

grade 9 math
Does this answer seem correct. 2k+3=4k-5 2k-4k+3-3=-5-3 2k-4k=-5-3 -2k/-2k = -8/2 k=4
Tuesday, April 12, 2011 by brooke

5th grade Math
Explain how you can find the product of 5 and 3/4.
Thursday, April 7, 2011 by Sarah

chemistry
Consider the reaction: A + B −> C If it is 2nd order in A and 0 order in B, a plot of [B]−1 vs time will be... a. linear and negative b. exponential and negative c. linear and positive d. equal to zero e. exponential and positive
Wednesday, April 6, 2011 by Eddy

4th grade math
what does 12/15 - 7/15 equal,in simplest form?
Tuesday, April 5, 2011 by megajolt

science
I have two questions I need help with. First is a two word answer for _____ can occur when heat from a volcano melts snow on a mountain. Total of 12 letters, 2nd is a, 4th s, 12th t. Second question-what is a 7 letter word for a mixture of loose sand, rock, and water moving at...
Thursday, March 31, 2011 by ccrs

english
She gave birth to her first child by her uncle at age 14 in 1990. This is showing a sign of being raped. Does this works? The psychologist help Alesha to break through her issues by using cognitive-behavioral therapy. Is "to" necessary or should take it out? Or both ...
Wednesday, March 30, 2011 by Jackie

math 4th grade
is 80 sq feet the size of a kitchen or is it 8 sq ft
Wednesday, March 30, 2011 by spencer

7th grade
use backtracking to solve each e quations ?. 2x +1=9, 7k-3=32, 5(n-8)=25 2(2t-1)=14 8x-1=63 ,2x-5=15,
Tuesday, March 29, 2011 by holiday

Chemistry-help needed
Posted by candy on Monday, March 28, 2011 at 3:15pm. 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...
Tuesday, March 29, 2011 by candy

intro to statisics
78% of US homes have a telephone answering device. In a random sample of 250 homes, what is the probability that fewer than 50 do not have a telephone answering device. Courtney, 2nd yr college
Tuesday, March 29, 2011 by Courtney

Math
The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children
Monday, March 28, 2011 by Mai

Math
The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children
Monday, March 28, 2011 by Macy

math
Please Help!! The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children
Monday, March 28, 2011 by luce

math
The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children
Monday, March 28, 2011 by jj

Math
The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children?
Monday, March 28, 2011 by MX

chemistry - help
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....
Monday, March 28, 2011 by candy

7th grade math
what is an equation?
Sunday, March 27, 2011 by holiday

7th grade math
what is an equation?
Sunday, March 27, 2011 by holiday

7th grade math
2x+7=4x+3 ? 3x+6=5x+1 ? 2n+6=8N+3 ? 6N+9=9n+6 ?
Sunday, March 27, 2011 by holiday

3rd grade math
16 1/2 x 33 = is it 792
Sunday, March 27, 2011 by Sharon

grade nine polynomials
(3/4) (1/-2) + (5/6) (-1/3)
Sunday, March 27, 2011 by brooke

6th grade math
s=5m find the area of square
Monday, March 21, 2011 by Sally

english (for Sra) repost
The Lady of Shalott I have two events and have to find the quotation. 1st event The handsome, dazzling figure of Sir Lancelot rides by in his shining armour. The Lady sees him in the mirror and can no longer bear her imprisonment. 2nd event The Lady floats down the river past ...
Sunday, March 20, 2011 by george

Fractions-easy 5th grade
Multiply and divide. 1) -2 4/11(-2) 2) 5 1/7 / 4 1/8
Saturday, March 19, 2011 by Justin

Microeconomics
You own the Wizard of Oz on DVD. The opportunity cost of watching this DVD for the second time: A) is zero. B) is one half the cost of the DVD, as this is the 2nd time you have watched it. C) is the value the alternative use of the time you spend watching the DVD. D) cannot be...
Thursday, March 17, 2011 by lavern

Second Grade Fractions
4/6 of 18 is ?
Thursday, March 17, 2011 by Rosie

5th grade math
please show how to get the answer... w>2 d+6<15 s-1>4
Wednesday, March 16, 2011 by casey

5th grade math
please show how to get the answer... w>2 d+6<15 s-1>4
Wednesday, March 16, 2011 by casey

5th grade math
please show how to get the answer... w>2 d+6<15 s-1>4
Wednesday, March 16, 2011 by casey

MATH
A track meet awards 6, 5, 4, 3, 2 and 1 points for 1st, 2nd, 3rd, 4th, 5th and 6th places, respectively. Team A’s only two runners originally earned 6 points in the first race with both runners finishing in the top 6, but then the winner of the first ...
Wednesday, March 16, 2011 by ABC123DoReMi

English-writeacher
Hey, I just wanted to let you know that I got the grade back for that english paper you helped me write a few weeks back...the movie analysis on A Walk to Remember. I got a B! : ) But I have a chance to revise it according to the teachers comments and turn it in for a better ...
Tuesday, March 15, 2011 by y912f

4th grade math
can u exsplain long division to me?
Monday, March 14, 2011 by clinton

chemistry.
in the titration between Na2CO3 and HCl... 1) at the first end point what reaction is stoiciometrically complete? 2)At the start of titration where HCl=0 is the solution acidic or basic. ExPlain? 3) At the 2nd end point what reaction is stiociometrically complete? 4)Propose a ...
Sunday, March 13, 2011 by zoe

Physics * (Wht am I doing wrng? answ provided)
A 6 kg block slides on a horizontal frictionless surface with a speed of 1.5 m/s . It is brought momentarily to rest when it hits a bumper that compresses a spring. The acceleration of gravity is 9.8 m/s2 .How much is the spring compressed if its force constant is 7 kN/m? ...
Friday, March 11, 2011 by cr

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 by candy

5th grade math
is 13/20 greater than 3/4
Tuesday, March 8, 2011 by Olivia Hines

5th grade math
3m=63
Tuesday, March 8, 2011 by casey

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 by hamza

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 by george

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 by Tina

MATH Grade 12
How do you sketch an equation like x+4=-2(y-3)^2 ???
Thursday, February 24, 2011 by Anonymous

3rd grade math
How do yu draw an array for the number 88
Thursday, February 24, 2011 by Jim

Math
What does I=prt mean in 7th grade verison?
Tuesday, February 22, 2011 by Rebecca Broda

grade 2
what is he probilty of rolling a dice and get a 5 if you rol it 5 time
Friday, February 18, 2011 by eric

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 by Mat

8th grade math
-7x+7y=7 2x-2=-18 how many solutions does this system have ?
Thursday, February 17, 2011 by Kassandra

8th grade science
Why is water essential to life?
Thursday, February 17, 2011 by Kallie

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 by Reed

geometry
The road rose at an 8 degree angle, what is the grade?
Tuesday, February 15, 2011 by Tom

Homophones/ 8th grade English
What is a homophone for racecourse?
Tuesday, February 15, 2011 by Aimme J. Keller

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 by Rachal

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 by Rachal

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 by mike

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 by Kimberly

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 by Sam

math
what is a sixth grade division problem with the number 17 in it?
Wednesday, February 2, 2011 by Alexa

7th grade math
21/8 divided by 5/6=? in simplest form
Monday, January 31, 2011 by nick

geomertry
what is radius and diameter in third grade math
Sunday, January 30, 2011 by nea

6th grade math
What is 4 divided by n is 1/2?
Sunday, January 30, 2011 by Anna

6th grade math
what is 1/4*1/2=4d?
Sunday, January 30, 2011 by Sara

6th grade math
How did you get c=1/5 when you have 5c=2/3 divided by 2/3?
Sunday, January 30, 2011 by Anna

6th grade math
Is the answer to G - 2 2/5 = 5 4/5 G = 7 6/5 ?
Sunday, January 23, 2011 by Suzanne

Math Grade 12 college
250(1.03)^n=400 solve for n
Sunday, January 23, 2011 by Alex

8th grade Science
In ionic bonds, what is the answer to these? Li + P and Rb + As and Pb + F and Bc + N ??
Wednesday, January 19, 2011 by Susan

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 by A-D

6th grade math
How many 5/6's are in 1? Is the answer 6/5 ??
Saturday, January 15, 2011 by Suzanne

4th grade
i need help solveing crossword puzzle
Thursday, January 13, 2011 by dk

9th grade alegbra
solve -5/6=2/3(3c+4)
Tuesday, January 11, 2011 by james

9th grade alegbra
solve df + 10h=3 for h
Tuesday, January 11, 2011 by james

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 by anonymous

6 grade math
Dividing 22/7 / 5
Monday, January 10, 2011 by Aaron

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 by Anonymous

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 by Serina

3rd grade social studies
what is agora
Tuesday, January 4, 2011 by megan

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 by dk

5th grade math
subtract 1/2 from 5/6
Monday, January 3, 2011 by jill

4th grade
if b x w = 24, b x b = 16 what is the value of w x w?
Monday, January 3, 2011 by dk

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 by michelle

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 by michelle

5th grade
divide 6358 by 100
Monday, December 27, 2010 by chris

4th grade
23x17 in expanded algorithm
Monday, December 20, 2010 by jayline

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