Saturday

January 21, 2017
Total # Posts: 126

**Chemistry **

Radon-222 is a radioactive gas with a half-life of 4 days. Approximately how much of a 40 g sample of radon-222 would remain after 12 days?

*January 18, 2017*

**Ummmm, LA Help?**

Reed not to be rude but she was asking about what were some examples I've done this before because I didn't understand it she wanted some examples from everyone to help her find some examples not to cheat Also sorry Agala I would help but I'm having trouble too

*December 7, 2016*

**Statistics**

Suppose Cindy is taking a multiple-choice test where there are 5 possible answers on each question. If she guesses on all 8 questions, what is the probability that she gets: a.) exactly 3 correct. b.) at least 1 correct. c.) What is the mean? d.) What is the standard deviation?

*November 2, 2016*

**Spanish**

3 is correct.

*October 12, 2016*

**Physics**

Jupiter has an Equatorial radius of sour 1.7x10^4 km and it's period of rotation is 9 hours and 50 minutes. Calculate the average speed (in m/s) of an Equatorial point during one period of jupiter's rotation. Is the velocity different than the speed? How do I even go ...

*September 10, 2016*

**Physics**

Once all of the passengers aboard it a train leaves the station and it takes 30 minutes to reach its maximum velocity once at maximum velocity train travels the next 6.30×10^2 km for the next 12.6 hours what is the acceleration of the train leaving the station. Do we ...

*September 10, 2016*

**Biology**

how to maintain the qualities of water ?

*June 29, 2016*

**Math**

I'm having trouble putting these least to greatest 6 and 9/10 , 6 and 19/80 , 6 and 3/4

*May 19, 2016*

**Math**

Did you ever get the answer to this i need a bunch of help

*April 27, 2016*

**Chemistry**

Thank you.

*April 26, 2016*

**Chemistry**

What volume of coffee (pH=5.0) would be required to have .25 moles of H3O+ ions? (must be two steps)

*April 26, 2016*

**Math**

Did you ever get the answer to this i really need help

*April 18, 2016*

**math**

Mrs Lopez has $9,118 in her bank account on March 1 she saves $609 in March. Then, she must pay $1,011 in taxes in April. Mrs Lopez is able to save $705 in May. At the end of May approoimately how much greater or less is her account balance than it was on March 17 Select each ...

*March 29, 2016*

**Math**

Ann is x years old and her sister is 2 years older. If the product of their ages 80. Form an equation in x and solve to find the age of each. ______________________________________ I got up to, x + 2x = 80 x + 2x - 80 = 0 and now im confused... this is for an exam, help?

*March 26, 2016*

**spanish**

Ok so I just need someone to check my answers and tell me if they are right or wrong :) (if wrong why) And to help me with the unanswered questions (couldnt find the right answer for them) Choose the correct form of the préterito tense: 1. Susana dormía cuando ...

*January 19, 2016*

**Math**

Ricardo spent $37 for a jacket which included $2.38 in sales tax. Write and solve an addition equation to find the price of the jacket before tax

*January 13, 2016*

**Health**

Thanks

*January 12, 2016*

**Health**

Nevermind, my answers were correct. It’s A,B, and C

*January 12, 2016*

**Health**

Long-term stress can lead to: (select 3) A. more frequent illnesses such as colds B. headaches C. heart disease D. self-actualization I think its A,B,C

*January 12, 2016*

**Math**

Oh okay Ms. Sue. I was first thinking it was C in the first place

*January 11, 2016*

**Math**

Thank you

*January 11, 2016*

**Math**

What percent of 250 is 70? A. 3.6% B. 18% C. 28% D. 175% I think it would be either C or D

*January 11, 2016*

**Social Studies (Ms. Sue) Please Proofread**

yay you are correct! thanks

*November 17, 2015*

**Is this right Ms Sue ???**

Thanks Lun, 100%!

*October 25, 2015*

**Math**

Mrs Lopez has $9,118 in her bank account on March 1 she saves $609 in March. Then, she must pay $1,011 in taxes in April. Mrs Lopez is able to save $705 in May. At the end of May approoimately how much greater or less is her account balance than it was on March 17 Select each ...

*September 17, 2015*

**Maths**

a man accepts a position with an initial salary of money $1800 per year if his salary increases at the end of every year by $1500 what would be his annual salary at Te begging of the 11th year

*August 25, 2015*

**Please Answer my Question(Science)**

DEEZ GOT HEE was right these are the answers 1.B 2.C 3.A 4.B 5.C 6.A 7.D 8.A

*May 6, 2015*

**english**

predominant default confiscated Decipher concurrent recession prerequisite constitute nominal hypothetical

*February 20, 2015*

**science**

Have you guys maybe thought of doing a little bit of research of the different spheres and earths rotation so that you can answer these on your own?

*January 9, 2015*

**Calculus (math)**

Warfarin is a drug used as an anticoagulant. After administration of the drug is stopped, the quantity remaining in a patient's body decreases at a rate proportional to the quantity remaining. Suppose that the half-life of warfarin in the body is 35 hours. Write a ...

*December 14, 2014*

**Science.. Need help ASAP!**

I just took the test YouShallNeverKnow is correct in that order :)

*December 1, 2014*

**math**

Josh has been running for 6 min and completes a lap in 7 min. Gabe has been running for 2 min and completes a lap in 9 min. How many more laps must Josh and Gabe complete to have run the same amount of time?

*November 14, 2014*

**Algebra**

A baseball is hit at a point 2 feet above the ground at a velocity of 100 feet per second and at an angle of 45 degrees with respect to the ground. The path of the baseball is given by the function: f(x)= -0.0032x^2+x+2. where f(x) is the height of the baseball in feet and x ...

*November 6, 2014*

**science**

-A is correct! I made a 5/5 a 100% thankyou!

*October 21, 2014*

**Physics gr. 12**

Rick and Glen are cornered by zombies as they tend to be in each episode. In this particular episode, Glen fires a grappling hook with a rope attached up to the roof of the building they are standing beside. Glen takes a quick look at the bag the rope came in which states a ...

*October 5, 2014*

**science 1 question!!!**

thank you Danny 100%

*June 5, 2014*

**science question**

Which process tends to occur more quickly, natural selection or artificial selection?

*May 28, 2014*

**science (check plz)**

8.two species have a relationship with one another in an ecosystem. suppose one of these two species goes extinct. which type of relationship did the two have if the surviving species population increases after the other goes extinct? A.the extinct species was a parasite in a ...

*May 26, 2014*

**science (help)**

oh sorry i had figured it out mins later but thank you Ms.Sue

*May 26, 2014*

**science (help)**

18.Fertilizers and pesticides applied to farm fields in Pennsylvania have made their way down into the Chesapeake Bay in Maryland. This is an example of _________________ pollution. 19.Before beginning any land development project, people should carry out a(n) ...

*May 26, 2014*

**science (check!)**

when fossil fuels are burned they produce _____, the main greenhouse responsible for global warming trends. ----MY ANSWER: emission?---

*May 26, 2014*

**science (CHECK plz)**

8.two species have a relationship with one another in an ecosystem. suppose one of these two species goes extinct. which type of relationship did the two have if the surviving species population increases after the other goes extinct? A.the extinct species was a parasite in a ...

*May 26, 2014*

**MATH ✿╣Check╠✿**

which expression would you use to figure out the number of ways you can arrange the letter in the word EQUATION?--------------My answer: 8P4 (the 8 and 4 are suppose to be small)

*May 4, 2014*

**MATH ✿╣Check╠✿**

8. There are 5 different cookies in a bag. One of them is your favorite, chocolate chip. What is the probability that you will not get your favorite? 1/5 2/5 24/25 4/5**?

*May 4, 2014*

**MATH ✿╣Check╠✿**

nvm

*May 4, 2014*

**MATH ✿╣Check╠✿**

A bag has 6 green marbles, 4 red marbles, 5 yellow marbles, and 3 purple marbles. What is the probability of choosing a purple marble? 1/6**? 6/18 3/20 1/9

*May 4, 2014*

**chemistry chem science**

A portable CD player that draws 160 milliamperes of current is powered by Ni-Cd rechargable batteries. Compute the mass of Cd consumed when a disk is played for 35 minutes. (enter your answer in grams)

*May 2, 2014*

**Math (help)**

what is the length of the radius of the LARGER cone(the LARGER cone has a slant height of 15) when the SMALLER cone has a radius of 8 and a slant height of 12ft ,please help.

*April 8, 2014*

**Math (help)**

how to find the surface area of a cone with a diameter of 8 and a slant height of 7? with steps? please

*April 8, 2014*

**Math help**

how to find the surface area of a cone with a diameter of 8 and a slant height of 7?

*April 7, 2014*

**Math help**

okay I figured it out, is it 24513.84? @Ms.Sue

*April 7, 2014*

**Math help**

How do you find the volume of a cylinder with a diameter of 34m and a height of 27m?

*April 7, 2014*

**MATH ✿╣Check╠✿**

what is the surface area of a sphere with a radius of 5 meters rounded to the nearest square meter? MY ANSWER: 314m^2 (is it correct?)

*April 7, 2014*

**Math (check)**

thank you!

*April 7, 2014*

**Math (check)**

what is the slant height for the given pyramid to the nearest whole unit? with a pyramid base of 12cm and a height of 8cm. MY ANSWER: 14

*April 7, 2014*

**Math (how do you find the volume of a cone)**

for example, a radius of 5 and a height of 20, could you please explain the steps? Thank you in advance!!

*April 1, 2014*

**science (check!)**

which of the following would be most likely to lead to increased biodiversity? . My answer: National park planning (though I kind of have the answer of farming in thought too)

*March 30, 2014*

**Science (check please)**

thank you so much Damon! I got them all right (:

*March 28, 2014*

**Science (check please)**

3. Which of the following pairs of terms could be used to describe a bullfrog that is active at night and enters a state of complete inactivity during colds months? . . . My answer: Circadian rhythm and hibernation.

*March 28, 2014*

**science (check please (:)**

haha thank you Damon!

*March 28, 2014*

**science (check please (:)**

8.Which of the following would help decrease the human ecological footprint? . . . . . . . . . . . . . . . My answer: using public transportation instead of riding in a car? (I have doubts on my choice) but my other choice is using bottled water instead of tap water?

*March 28, 2014*

**science (check)**

Before yes but it was too late when I realized it. (:

*March 28, 2014*

**science (check)**

5.Which of the following could help reduce loss of biodiversity ? A. increasing construction of tall buildings B. increasing farming operations C. increasing conservation measures***** D. Increasing the human ecological footprint

*March 28, 2014*

**science (check)**

carrying capacity is the maximum number of _____ that an ecosystem can support. . . . My Answer: Individuals in a population (Is it right?)

*March 28, 2014*

**social studies (check plz)**

thank you.

*March 27, 2014*

**social studies (check plz)**

Which statement best describes the government of Canada? The monarch of Britain has total control over Canada. The Canadian parliament is ruled by the United States. Canada has complete power over its own government(MY ANSWER) The prime minister is the monarch of Canada.

*March 27, 2014*

**Math check (:**

thank you Ms.Sue!

*March 20, 2014*

**Math check (:**

find the volume of the cone with a radius of 6in. and a height of 11in. MY ANSWER: 415 in^3 (Is it right?) thank you in advance!

*March 20, 2014*

**math (check please)**

yay thank you @steve (:

*March 20, 2014*

**math (check please)**

find the volume of a square pyramid with a base length of 9cm and a height of 4cm. ANSWER: 108 cm^3 (is it right?)

*March 20, 2014*

**math question (CHECK)**

find the surface area of a square pyramind with a base length of 24cm and a height of 16cm . . . . . . . . A.1056 cm^2 . . . . . . . . . . B.1536 cm^2 . . . . . . . . . . C.816 cm^2 . . . . . . . . . . D.1344 cm^2(I CHOOSE THIS ONE)

*March 20, 2014*

**Math question check**

find the surface area of a square pyramind with a base length of 24cm and a height of 16cm . . . . . . . . A.1056 cm^2 . . . . . . . . . . B.1536 cm^2 . . . . . . . . . . C.816 cm^2 . . . . . . . . . . D.1344 cm^2(I PICKED THIS ONE)

*March 20, 2014*

**MATH (check please)**

oops sorry you were right it is 285.7! thank you @steve

*March 19, 2014*

**MATH (check please)**

find the lateral area of a cone with a radius of 7ft. and slant height of 13ft, use 3.14 for pi and round the nearest tenth. . . . . A.439.6 ft^2 . . . . . B.324.5 ft^2 . . . . . . C.571.5 ft^2 . . . . . . D.258.7 ft^2(I PICKED THIS ONE)

*March 19, 2014*

**math (check)**

thank you (:

*March 19, 2014*

**math (check)**

find the volume of a cylinder with a diameter of 16mm and a height of 5.7. A.2,292mm^3 . . . 4,584mm^3(i think its this one) . . . 689mm^3 . . . . 1,146 (but i also got an answer close to this but the tens place was 5)

*March 19, 2014*

**math**

oops nvm

*March 17, 2014*

**math**

Calculate the slant height for the given cone. Round to the nearest tenth. (explain?) 10.2 cm 11.4 cm 9.8 cm 12.0 cm (I picked this one)

*March 17, 2014*

**math (cant figure it out)**

thank you guys I figured it out! and especially to Chelle (:.

*March 15, 2014*

**math (cant figure it out)**

How to find the surface area of a cylinder with a diameter of 6ft and a height of 20cm using 3.14 rounded to the nearest whole number. (I cant figure it out my book doesn't give an example of it just a radius formula and ive tried searching the formula but i cant find any ...

*March 15, 2014*

**math**

thank you, I got it!

*March 13, 2014*

**math**

How Many Lateral Faces Does A Triangular Prism Have?

*March 13, 2014*

**please check(Social studies)**

Yes you were so right Jordan 6/6 correct :)

*March 12, 2014*

**social studies**

12. How do the cherries on a cherry tree help the plant reproduce? Cherries develop into seeds, which are young, undeveloped plants. Animals eat the cherries, which helps disperse the plant’s seeds. Pollen inside the cherries fertilizes ovules, which produce seeds. ...

*March 6, 2014*

**science**

thank you!

*March 5, 2014*

**science**

oops forgot to put my answer, I think it is either A or B.

*March 5, 2014*

**science**

3. Which of the following is an example of inbreeding? A farmer chooses the cows in his or her herd that produce the most milk and breeds only those cows. A farmer chooses the cows in his or her herd that produce the most milk and breeds them with cows that get sick less often...

*March 5, 2014*

**social studies**

thanx I figured out the answer (:

*March 5, 2014*

**social studies**

The first immigrants to the United States were mainly from England, Scotland, Ireland, Germany, and? a. Russia. b. Italy. c. Scandinavia. d. Greece I think its either A or C please help

*March 5, 2014*

**Science**

A D A A 100%:)

*March 3, 2014*

**Math**

Hi, could you please provide a step by step solution explaining how to do this: [(a^2 - b^2 + a + b)/(a - a^3)] x [(1-a^2)/(a - b + 1)] The answer should be (a + b)/ a Thanks

*February 4, 2014*

**Math help :(**

anon is correct got 100% :)

*December 18, 2013*

**Science**

1.A 2.C 3.B 4.D 5.C 6.B 7.D figure out the rest by using info and your head :)

*November 6, 2013*

**engliiish**

dramatic monoluge and soliloquy main similarity and main difference

*October 2, 2013*

**trig**

How do you solve sin(e^x)=0 for x? The question is "find the smallest number x such that sin(e^x)=0".... but I can't even get AN answer lol! Much appreciated!

*September 11, 2013*

**trig**

How do you solve sin(e^x)=0 for x? The question is "find the smallest number x such that sin(e^x)=0".... but I can't even get AN answer lol! Much appreciated!

*September 11, 2013*

**Math**

Writ two decimals that are equivalent to the given decimal 5.300 3.7 0.9

*September 11, 2013*

**science**

A solution is prepared by mixing 100.0 mL of 0.0500 M AgNO3 with 75.0 mL of 0.0500 M CaCl2. What is the equilibrium concentration of Ag+ in solution? Ksp for AgCl is 1.6 x 10^-10

*July 26, 2013*

**MATH**

A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4 38 43.4 50.7 35.4 39.3...

*April 9, 2013*

**Math Help please!**

Find the area under the standard normal distribution curve for the following z-values: a. Between z= 0 and z = 2.01 b. Between z = 0 and z = -0.32 c. To the left of z = -0.73 d. To the right of z = 0.32

*April 3, 2013*