# Posts by Chris

Total # Posts: 2,693

**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

*March 24, 2017*

**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

*March 24, 2017*

**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 ...

*March 16, 2017*

**Math**

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

*March 2, 2017*

**Math check**

Soooo am I correct?

*March 2, 2017*

**Math check**

Oh Thanks :-)

*March 2, 2017*

**Math check**

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

*March 2, 2017*

**Math**

Just kidding yes you can :-))))

*March 1, 2017*

**Math**

For Ms.Sue: no

*March 1, 2017*

**Math**

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

*March 1, 2017*

**Science **

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

*February 28, 2017*

**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.

*February 9, 2017*

**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.

*February 8, 2017*

**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 ...

*February 5, 2017*

**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

*February 1, 2017*

**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?

*February 1, 2017*

**Maths**

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

*January 27, 2017*

**science **

Conversion of energy from one form to another usually releases what

*January 25, 2017*

**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.

*January 17, 2017*

**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

*January 16, 2017*

**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

*December 29, 2016*

**Bio**

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

*December 20, 2016*

**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?

*December 16, 2016*

**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. ...

*December 13, 2016*

**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...

*December 10, 2016*

**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 ...

*December 4, 2016*

**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 = ....

*December 4, 2016*

**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 ...

*December 4, 2016*

**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...

*December 3, 2016*

**Math**

The sum of 24 and Vanessa's age is 40

*November 22, 2016*

**Stats**

4 teachers selected from 13 parents and 5 teachers

*November 21, 2016*

**Arithmetic**

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

*November 16, 2016*

**Arithmetic**

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

*November 15, 2016*

**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

*November 9, 2016*

**Marh**

What is 3 pints to 15 pints?

*November 9, 2016*

**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.

*November 9, 2016*

**Arithmetic**

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

*November 7, 2016*

**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?

*November 7, 2016*

**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 ...

*November 5, 2016*

**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?

*November 5, 2016*

**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?

*November 5, 2016*

**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?

*November 5, 2016*

**math**

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

*November 5, 2016*

**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?

*November 5, 2016*

**brain drain**

grey hair

*November 4, 2016*

**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.

*November 2, 2016*

**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?

*November 2, 2016*

**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

*November 1, 2016*

**electric heating appliance and fan**

bus bars are used in an electric iron as

*October 28, 2016*

**motor driven small appliance**

vacuum strength is rated in terms of

*October 26, 2016*

**cooking appliance**

a digital clock on small cooking appliance keeps time by

*October 26, 2016*

**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’ ...

*October 26, 2016*

**cooking appliance**

the time required for resin cement to set is about

*October 26, 2016*

**cooking appliance**

the time required for epoxy resin cement to set is about

*October 26, 2016*

**Physics**

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

*October 26, 2016*

**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?

*October 25, 2016*

**English Writing**

The explain in one paragraph for each website why you think the website is good for academic work. Structure: Topic sentence 2-3 reasons why it is good or bad, or a little of both. Concluding sentence. Make sure to use the evaluative word "because" in your writing. ...

*October 23, 2016*

**Math Homework**

The following frequency table contains the total number of deaths worldwide as a result of earthquakes from 2000 to 2012. Year Deaths 2000 231 2001 21,357 2002 11,685 2003 33,819 2004 228,802 2005 88,003 2006 6,605 2007 712 2008 88,011 2009 1,790 2010 320,120 2011 21,853 2012 ...

*October 22, 2016*

**math**

-23 1/3

*October 22, 2016*

**Math, Functions**

Thanks for answers!!

*October 22, 2016*

**Math, Functions**

It isn't t=3 ..?

*October 22, 2016*

**Math, Functions**

If g(t)= 1/t-2-1, how to solve g(t)=0 ...? Please teach me..!

*October 22, 2016*

**Math**

This is a Bennett diagram question. If 24 students take music, calculate the number of students who take music and drama and also calculate the number for drama only If 3x + x +7 + x

*October 20, 2016*

**Chemistry**

What mass of calcium citrate, Ca3(C6 H5 O7)2, would a tablet manufacturer need to use to provide the same amount of Ca that you found in your tablet? (show calculations) The mass of Calcium for the experiment was .7374g We assumed that any solid that formed when Na2CO3 was ...

*October 17, 2016*

**Math**

What is the value of -3 + 4.5 - (-1.2)?

*October 17, 2016*

**Math Functions**

Hello. Could you please help with my math homework...? An online bookseller gives the following information for their shipping information: "The shipping and handing charge per order is $4, plus $1.50 per book." Let x = the number of books that someone orders. Let S(...

*October 17, 2016*

**chem**

For the reaction 2 N2(g) + 3 H2(g) → 2 NH3(g) which of the following can be determined using only the coefficients of the balanced chemical equation? the number of moles of NH3 obtained if 4.2 mol of N2 react completely to form NH3 the weight of NH3 obtained if 4.2 mol ...

*October 16, 2016*

**chem**

Using the balalnced chemical equation, how many grams of MgO are produced when 31.0 grams of O2 react completely with Mg? 2 Mg + O2 → 2 MgO Molar Mass Mg = 24.3 g/mol O2 = 32.0 g/mol MgO = 40.3 g/mol 55.7 78.1 89.1 111.3

*October 16, 2016*

**chem**

Using the balanced chemical equation, the number of moles of oxygen gas needed to react with 2.5 moles of Mg is __________. 2 Mg + O2 → 2 MgO

*October 16, 2016*

**Social Studies**

I have to search and compare these civilization... ･pre 20th century Japan ･Incan It's my Social Studies project😲💦 Would you recommend me some good websites in English?

*October 16, 2016*

**Science, Nature Sciencence, Nature Sciencence**

What type of evidence do scientists have that helps them to know what life was like in the past?

*October 15, 2016*

**Spanish**

Wow! Thank you very much Sra. that helped me a lot and I will learn from it so I can improve in the future.

*October 11, 2016*

**Spanish**

SraJMcGin can you please help me? Modifique el texto por cambiar los verbos italizados de lo familiar (informal) a lo formal Prepara (1) prepare para salir de viaje el lunes por la mañana. Para ello, haz (2) haga las maletas, sal (3) salga de la habitación y m&...

*October 11, 2016*

**Spanish**

Hello, I have corrected the issue and reposted it. Sorry about that.

*October 11, 2016*

**Spanish**

SraJMcGin can you please help me? Modifique el texto por cambiar los verbos italizados de lo familiar (informal) a lo formal Prepara (1) _____ para salir de viaje el lunes por la mañana. Para ello, haz (2) ______ las maletas, sal (3) _____ de la habitación y m&...

*October 11, 2016*

**Earth science**

If the volume in a graduated cylinder is raised from 50ml to 51 ml, what is the objects volume?

*October 9, 2016*

**Statistics**

A = 3000(1+((.03)/12))^(12)(9) Just plug that into a calculator

*October 9, 2016*

**Calculus I**

You are watching the Chicago marathon from your friend's apartment, 100 feet above the street. A runner passes the building at 11 feet/sec. Let d denote the distance between the base of the building and the runner, and let h denote the distance between you and the runner. ...

*October 9, 2016*

**Math**

A one-product company finds that its profit, P, in millions of dollars, is given by the following equation where a is the amount spent on advertising, in millions of dollars, and p is the price charged per item of the product, in ...

*October 9, 2016*

**statistics**

A STAT 200 instructor is interested in whether there is any variation in the final exam grades between her two classes Data collected from the two classes are as follows: Her null hypothesis and alternative hypothesis are: (a) Determine the test statistic. Show all work; ...

*October 7, 2016*

**Math**

I did binomcdf(22,.25,6) in my calculator. n=22, p=.25, x=6 Is this the correct process?

*September 18, 2016*

**Math**

Suppose a fair four-sided die is tossed 22 times. What is the probability of getting at most 6 fours?

*September 18, 2016*

**Chemistry**

If you had dehydrated 1.00g of the hydrate CaCl2 ∙6H2O how many grams of anhydrous CaCl2 would you expect to be produced? Show calculations. I really am having a hard time with this question. I don't know where to start and how to perform it.

*September 18, 2016*

**stats**

Find the z-scores for which 92 % of the distribution's area lies between minus z and z.

*September 18, 2016*

**Math**

I have a bag with 2 different kinds of objects: 17 cubes, 19 spheres. If I randomly pick from the bag 5 of these objects without return any of it, what is the probability of getting at least 1 of each kind?

*September 11, 2016*

**Pre-Calculus**

The minute hand of a clock is 3 inches long. How far does the tip of the minute hand move in 5 minutes? If necessary, round the answer to two decimal places.

*September 10, 2016*

**geography**

liberty

*September 8, 2016*

**Math Precal**

An airplane has an airspeed of 650 km/h bearing 15 degrees north of west. The wind velocity of is 19 km/h in the direction of 30 degrees east of south. Find the resultant vector representing the path of the plane relative to the ground. What is the ground speed of the plane? ...

*September 6, 2016*

**math**

thank you got the answers correct

*August 29, 2016*

**math**

I need help figuring the grade for two students I keep getting a big number. *Note Final can replace a low exam grade 𝐺𝑅𝐴𝐷𝐸 = .15 ∗ (𝐷𝑎𝑖𝑙𝑦 𝑎𝑣𝑔) + .65 ∗ (𝐸...

*August 29, 2016*

**Bus. QA Compliance**

Need assistance with a project summarizing and analyzing a quality assurance program for a financial services company

*August 16, 2016*

**biology**

biology

*August 7, 2016*

**Science**

What does sc mean on all jewlry items

*August 6, 2016*

**Math**

What does sc mean on all jewlry items

*August 6, 2016*

**Math**

On Feb. 27th, 2010, an earthquake of magnitude 8.8 occurred off the coast of Chile lasting up to 3 minutes. Five months later, a 2nd earthquake occurred with magnitude of 5.3. How much more intense was the first earthquake compared to the 2nd earthquake?

*July 14, 2016*

**Chemistry**

Equation of Mg(OH)2 (aq) + KOH (aq) gives you what ?

*July 11, 2016*

**math**

the building supply store sells one liter bottles of water for $1.09 approximately how many 8 ounce servings of water in 1 liter

*July 11, 2016*

**chemistry**

What is the difference between the acid and base notation of a hydroxide? Give an example of the same molecular formula written in acid and base notation.

*July 6, 2016*

**financial management**

Angela Anderson is employed as a Tax Manager by Super Cell Phone Service, Inc. She earns $135,000 per year in this role, supervising a department of five Tax Accountants. Calculate the Medicare taxes that will be withheld from Angela’s annual salary assuming a tax rate of...

*June 12, 2016*

**English**

People who don’t know Harry tend to underestimate him. They cast a skeptical eye on his typical outfit: ragged jeans and shirts that bear evidence of his most recent meal. And his most frequently uttered expression, “Waaaal, I just don’t know,” can make ...

*May 24, 2016*