# Posts by Chris

Total # Posts: 2,773

**englies**

Using a “Cuase-and-Effect Chain” explain why leaves change color and fall from the tree. Used details from the story.

**Physics **

When sugar is poured from the box into a bowl , the rubbing of the sugar grains create a static charge that repels the grains , and causes the sugar to go flying out in all directions. If each of two grains acquires a charge of 3.0x10^-11 C at a separation of 8.0x10^-5 m, with...

**Math**

One day 176 people visited small art museum. The ratio of members to nonmembers that date was 5 to 11. How many people who visited the museum that day were nonmembers ?

**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.

**ss**

Answer is C

**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 =

**math**

Why do you use 360 and not 365?

**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."?

**pre-Calculus**

25

**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**

-9

**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

**Math**

Thank you Imma believer

**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