Posts by Chris

Total # Posts: 2,760

HS english 1
Please help i have tried a lot of other sites and they couldnt help me. Question (essay style): Read this excerpt from Little Brother and answer the following questions in complete sentences using proper grammar and punctuation: Marcus manages to flag down a vehicle and they ...

Chemistry
Ca+N-->Ca3N2 -What is limiting reagent? -Mass of calcium nitride formed when 50.0g of calcium reacts with 50.0g of Nitrogen? -Excess? CAN SOMEONE DOUBLE CHECK MY ANSWERS: Calcium is limiting reagent. Mass of Ca3N2: 68.4g Ca3N2 Excess: 38.4N left over.

math
a recent survey of 8 randomly selected social networking sites has a mean of 13.1 million visitors for a specific month. the standard deviation is 4.1 million find the confidence interval of the true mean

Chemistry
H2SO4+2NaOH->2H2O+Na2SO4 How many molecules of water are produced when 12g of sodium sulfate are created? Is this answer correct: 75Lx6.02^23= 452molecules H2O

Math
I believe so because 50cm is equal to .5meters. And 300cm=3 meters.

Chemistry
H2SO4+2NaOH->2H2O+Na2SO4 2.) How many molecules of water are produced when 12g of sodium sulfate are created? Appreciate the help. I'm stuck on this one. Thanks!

Chemistry
So is this right? 1.) 18g H2SO4. If so why wouldn’t we include Sulfur? 2.) 108x6.02^23= 108molecules H2O Thanks for the help.

Chemistry
H2SO4+2NaOH->2H2O+Na2SO4 1.) How many grams of H2SO4 are needed to produce 135L of water? 2.) How many molecules of water are produced when 12g of sodium sulfate are created?

Language arts
i have tried and found not alot of good information

Language arts
i have tried and found not alot of good information

Language arts
I need help on researching hurricanes can you help me thanks.

Science
Thank you

Science
i need help i need to find 3 ways to conserve fish

MATLAB
Consider the following approximation: f?(x) ? Af(x ? 2h) + B f(x ? h) + C f(x) + D f(x + h) + E f(x + 2h). 1) Determine the values of the constants A, B, C, D, and E so that the approximation is as accurate as possible. What is the order of the error? Please note this is (at ...

Science
Bicycle is not

Math
The cost of renovating the office consists of construction materials and labour costs. So we let x and y be cost of construction materials and labour respectively. This means x + y = 46000 If the materials are 25% more and labour 30% more, renovation costs are RM58540. So our ...

PHYSICS HELP
Use Snell's Law: n1sin(theta1)=n2sin(theta2) Since white light is incident at 30degrees, theta1 = 30. Calculate the angle of refraction for the blue and red lights separately. For each case, n1 should be the index of air while n2 is the index for the blue or red light of ...

Physics
A rail gun uses electromagnetic energy to accelerate objects quickly over a short distance. In an experiment, a 2.00 kg projectile remains on the rails of the gun for only 3.500e-2 s, but in that time it goes from rest to a velocity of 4.00×103 m/s. What is the average ...

Algebra
What do A & B stand for in algebra can some one please explain this to me because I'm really confused:/

Science
What is the goal of technology A.to understand the natural world B.to improve how devices operate C.to improve how people live D.to understand how systems operate My answer A

Math
Consider the two savings plans below. Compare the balances in each plan after 7 years. Which person deposited more money in the? plan? Which of the two investment strategies is? better? Yolanda deposits ?$550 per month in an account with an APR of 6?%, while Zach deposits $ ...

Math
At age 25 someone sets up an IRA? (individual retirement? account) with an APR of 4%. At the end of each month he deposits ?$85 in the account. How much will the IRA contain when he retires at age? 65? Compare that amount to the total deposits made over the time period. I am ...

Math
Find the savings plan balance after 2 years with an APR of 9?% and monthly payments of ?$250 Can someone help me? Idk if im right but do I multiply $250 by 9% an then divide?

Math
Suppose a man is 30years old and would like to retire at age 65 ?Furthermore, he would like to have a retirement fund from which he can draw an income of ?$50,000 per yearlong dash—?forever! How can he do? it? Assume a constant APR of 5?%. He can have a retirement fund ...

Math
Consider the two savings plans below. Compare the balances in each plan after 7 years. Which person deposited more money in the? plan? Which of the two investment strategies is? better? Yolanda deposits ?$550 per month in an account with an APR of 6?%, while Zach deposits $ ...

Math
Find the savings plan balance after 33 years with an APR of 9?% and monthly payments of ?$200

Math
Sal and Cal both work for the same company making ?$55,000 each in annual salary. Sal deposits 5?% of her salary to her 401k plan and the company matches 25 cents for each dollar contributed to the 401k up to the 5?%. Cal deposits nothing into his 401k. If they are both in the...

math
Suppose that ?$4,000 is invested in a 6?-month CD with an APY of 1.6 What is the corresponding? APR?

American History
How were American politics and society shaped by the Cold War?

Life orientation
Impact of risk behaviour. Social and emotional

American History
Well Lyndon B. Johnson's goal of the "Great Society" was to end poverty, racial injustice, and provide abundance and liberty for all. Both Johnson and Goldwater didn't favor big governments.

American History
How does Goldwater's conservative vision for America compare to Johnson's "Great Society"?

American History
What were some of the social and political changes of the 1960s?

Religious Studies
Was Jesus trans?

Math
i am a 6 digit number 8 ones, 5 hundreds 2 thousands, 19 ten thousands. What is the answer?

Math
Teach me the method for this question: if a car travels 180km on 18 litres of petrol, then on a full 40litre - tank it should travel.

Math(Calculus)
I Get it Now, thank you. This website is amazing.

Math(Calculus)
Thanks but I'm confused, what would the maximum be if the function if h(x)=e^((x)^(2) -4)

Math(Calculus)
correction the function is e^((x)^(2) -4)

Math(Calculus)
Im having a real difficult time solving this question. Find the absolute extrema of the function. h(x) = e^x^(2) - 4 on [-2,2] Absolute maximum value: at x = Absolute minimum value: at x =

Social Studies
1-a 2-c 3-b connections 100%

physics
An electron is located at the origin. A proton is located at (2, 0). Find the electric field direction at (1, 1).

History
How has the united states used economic pressure to promote the spread of democracy

Science
1. 30 years= 3 1/2 lives so 1.0mg ->30yrs-> 0.5mg 0.5mg->30yrs->0.25mg 0.25mg->30yrs->0.125mg 2. correct

math
NEED HELP NOW TALKING TEST NOW HELP!!! Triangle ABC is an equilateral triangle. how many lines of symmetry does triangle ABC have? a 0 b 1 c 3 d 6

Physics
Physics lab need help with sources of error. In our lab, we had to use carbon tape and a spark timer to find out the maximum velocity and maximum acceleration of a high school student. I'm having a hard time to find sources of errors. Any ideas or insights would be really ...

Math
To find the difference of 7 - 3 5/12 how do you rename the 7?

Math check
Soooo am I correct?

Math check
Oh Thanks :-)

Math check
What is 6 5/6 - 5 1/2 This is my answer:1 2/6 or simple form: 1 1/6

Math
Just kidding yes you can :-))))

Math
For Ms.Sue: no

Math
Why is it necessary to rename 4 1/4 if you subtract 3/4 from it

Science
What do we mean when we say, "The speed of the car is 90 km/h."?

Math
On a centimter dot grid, draw all pissible rectangles with area of 12 sq cm and sides whose length s are whole centimeters. Label the lengths of two adjacent sides of each rectangle.

Physics
3 identical point charges Q are placed at the vertices of equilateral triangle (length of each side is equal to 2m) if Q=60uC, what is the magnitude of Electrostatic force on any one of the charges.

math
Laura inherits $30,000 and decides to invest part of it in an education account for her daughter and the rest in a 10-year CD. If the amount she puts in the education account is $5,000 more than twice the amount she puts in the CD, how much money does Laura invest in each ...

English
I was in your place couple days ago. It is a pity that I have just noticed your question. And I want to tell you for sure where you should go and order the paper there. Please, google Prime writing service and get the help there

6 th grade
Bill's average score for 10 test was 88. If his lowest score, 70, is not counted, what was his average for the remaining test?

Maths
Breed of 580 mils per hour drive from 21 1/2 hours

science
Conversion of energy from one form to another usually releases what

riddle
has many answers,but ithink the best is love coz it old and new at the same time it size can not be measured,to know whether it small or big.the next is how our eyes tricks our mind.

Math
If the 15th and 16th term of an arithmetic sequence are 99 and 92 respectively then the 5th term is? Studying for math final and I cannot figure this out

math
If Larry worked 411/2 hours this week and spent 1/3 of his time hauling material, how much actual time did Larry spend hauling

Bio
if you knew makeup of a specific proteins in a cell , how would you determine the particular dna code that coded for them

Criminal Justice CRJ 220
What is an example of thinking in an exclusive way, which may inhibit the process of intellectual growth and moral development?

science connexus
100% thx

Algebra II
Bill's Sporting Goods makes baseballs and softballs. In a given week they can manufacture no more than 70 balls. When setting equipment, they have to make at least 20 baseballs and at least 10 softballs. They make 6$ for each softball sold and 5$ for each baseball sold. ...

Algebra
Can you please help me with this problem: The x-intercept of a line has a value of -7/6 and a y-intercept of 7. Another line has a slope that is twice the slope of the first line an a y-intercept that is 15 more than the first lines' y-intercept. What is the product of the...

Statistics (Math 210)
Hi there, I am doing my statistics homework and am having trouble with a few problems. I sincerely appreciate any help I receive! :) According to a local chamber of commerce, in 1993, 5.9% of local area residents owned more than five cars. A local car dealer claims that the ...

Statistics (Math 210)
Hi there, I am doing my statistics homework and am having trouble with a few problems. I sincerely appreciate any help I receive! :) A manufacturer claims the standard deviation of salt in their meat is .5. An SRS of 18 samples shows the standard deviation (s)= .62 (alpha = ....

Statistics (Math 210)
Hi there, I am doing my statistics homework and am having trouble with a few problems. I sincerely appreciate any help I receive! :) A manufacturer claims that the mean lifetime of its lithium batteries if 1200 hours. A homeowner selects 25 of there batteries and finds the ...

Math
Two debts ---- the first of $800 due six months ago and the second of $1400 borrowed one year ago for a term of three years at 6.5% compounded annually ---- are to be replaced by a single payment one year from now. Determine the size of the replacement payment if interest is 7...

Math
The sum of 24 and Vanessa's age is 40

Stats
4 teachers selected from 13 parents and 5 teachers

Arithmetic
If pencils are bought at 70 cents per dozen and sold at 3 for 20 cents, the total profit on 6 dozen is?

Arithmetic
a folding chair regularly sells for $29.50. how much money is saved if the chair is bought at a 20% discount?

science
a bullet is shot from a springfield rifle with a speed of 3,015 ft/s. assuming the bullet moved at a constant velocity, what is the time required for the bullet to strike a target 4,146 meters away

Marh
What is 3 pints to 15 pints?

MATH
An inch on a map represents 200 miles. On the same map, a distance of 375 miles is represented by? A. 1 1/2 inches B. 1 7/8 inches C. 2 1/4 inches D. 2 3/4 inches Thank you for your help.

Arithmetic
a boy sold $88.50 worth of stationery. If he received a 33 1/3% commission, what was the amount of his commission?

arithmetic
on a certain day, the temperature range from -2f to 10f. what is the difference between the high and low temperatures for that day?

Statistics
"Suppose two independent samples have been collected.Based on a sample of 26 from the first population, you observe 14 successes. The second sample of size 26 had 17 successes. What is the critical value for a 85% confidence interval that compares these two population ...

Arithmetic
A man paid $42.30 for gasoline in may, $38.60 in June, and $43 in July. What was the average monthly cost for gasoline?

Arithmetic
A man owned 75 shares of stock worth $50 each. The corporation declared a dividend of 8 percent payable in stock. How many shares did he then own? 81 shares but how?

Math
Six gross of special drawing pencils were purchased for use in a department. If the pencils were used at the rate of 24 a week, the maximum number of weeks that the 6 gross of pencils would last is?

math
A dealer bought some bicycles for $4,000. He sold them $6,200, making $50 on each bicycle. How many bicycles were here?

math
A man owned 75 shares of stock worth $50 each. The corporation declared a dividend of 8%, payable stock. how many shares did he then own?

brain drain
grey hair

math
Thank you So much. The answers given are A - 81 shares B - 90 shares C - 91 shares D - 95 shares should i round it off to 81? thanks for help on this.

math
A man owned 75 shares of stock worth $50 each. The corporation declared a dividend of 8%, payable stock. how many shares did he then own?

science
kinsey leaves her house to exercise and run straight down a long street for 5.00 meters at a constant rate of 3m/s then turns and run back toward her house for 2 meters what is her average speed in m/s what is her displacement what is her average velocity in m/s

electric heating appliance and fan
bus bars are used in an electric iron as

motor driven small appliance
vacuum strength is rated in terms of

cooking appliance
a digital clock on small cooking appliance keeps time by

Spanish
Instructions: Modifique el párrafo por cambiar las palabras entre comillas al tiempo FUTURO. Modelo: Mi familia ‘va a visitar’ a nuestros abuelos este verano. Mi familia visitará a nuestros abuelos este verano. Este año ‘vamos a hacer’ ...

cooking appliance
the time required for resin cement to set is about

cooking appliance
the time required for epoxy resin cement to set is about

Physics
What the hell are u teaching people!!! :)

Algebra Two
David’s monthly salary is $2500 plus 6% commission on his sales. What must be the amount of his sales for him to earn at least $3,100 each month?

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