Wednesday

May 27, 2015

May 27, 2015

Total # Posts: 81,809

**Social Studies**

If question 1 is about DURING the War, your answer is wrong. All the others seem to be correct.
*April 2, 2015*

**Social Studies**

If question 1 is about DURING the War, your answer is wrong. All the others seem to be correct.
*April 2, 2015*

**Physics **

How are lights in schools usually wired... Series or parallel circuits?
*April 2, 2015*

**MATH**

.In <ABC, <A=60,<B=70,<C=50. Points D , E ,F are the mid-pointsmof the sides BC ,AC and AB respectively. Find the measures of the angles of the triangle formed by joining the mid-points of the sides of <ABC.
*April 2, 2015*

**MATHS**

In the given figure, O is the center of the circle and <AOB=110degree find the value of XYZ.
*April 2, 2015*

**Calculus**

Use implicit differentiation to differentiate y=x^(8/37), by writing it as y^37=x^8. Express your answer only in terms of x.
*April 2, 2015*

**Algebra**

Thanks for trying to help. The answer was (3t^1/2+5)(3t^1/2 -5).
*April 1, 2015*

**calc**

Gravel is being dumped from a conveyor belt at a rate of 30 ft3/min. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 21 ft high?
*April 1, 2015*

**calculus**

Oil spilled from a ruptured tanker spreads in a circle whose area increases at a constant rate of 7.5 mi2/hr. How rapidly is radius of the spill increasing when the area is 10 mi^2?
*April 1, 2015*

**Calculus **

Use implicit differentiation to differentiate y=x8/37, by writing it as y37=x8. Express your answer only in terms of x.
*April 1, 2015*

**chemistry**

Aqueous hydrobromic acid will react with solid sodium hydroxide to produce aqueous sodium bromide and liquid water . Suppose 4.05 g of hydrobromic acid is mixed with 0.86 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction...
*April 1, 2015*

**Chemistry **

What would be the procedure for titrating a beverage to determine the concemtration of weak acid? What reagents would be needed? What appropiate measurements and observations must be made?
*April 1, 2015*

**Algebra II**

Logarithms The brightness of an astronomical object is called its magnitude. A decrease of five magnitudes increases the brightness exactly 100 times. The sun is magnitude -26.7, and the full moon is magnitude -12.5. The sun is about how many times brighter than the moon?
*April 1, 2015*

**Art**

I think C! but im not sure! please help!
*April 1, 2015*

**physics**

For a) you have to integrate the linear mass density equation, then solve for the length given. ans=.0204 kg I still haven't figured out b
*April 1, 2015*

**Reed**

Thank You thank You so much! I will fix them! Thanks!!!!!!!!!!!!!!!
*April 1, 2015*

**Reed**

Hey Reed u told me u will check my essay and u didn't check it so i posting in this post! PLZ remove the last post which was Yesterday cause I posted my essay there and after u check let me know. Plz don't remove this until I reply so I can see ur reply! Thanks a bunch...
*April 1, 2015*

**exponential equations**

The City of South Bay has a current population of 85 000. If the city is increasing at a rate of 7.25% per year, calculate the future population in 8 years time. Round to the nearest person.
*April 1, 2015*

**maths please help and explain**

1.simplify with the aid of a calculator Keys: " =degrees sin21"40^1+cos23"50^1
*April 1, 2015*

**Chemistry**

Can someone work this out so I can understand it better?
*April 1, 2015*

**math help needed bad**

Thank you for your help Ms. Sue.
*April 1, 2015*

**math help needed bad**

So thats all to it?
*April 1, 2015*

**Algebra Please Help**

How would I do that?
*April 1, 2015*

**Algebra Please Help**

Complete the table for the given function. x| y = x^2 + (-3) 0| 1| 2| 3| A. -3, -2, 1, 6 C. 3, 4, 7, 12 C. 0, 1, 4, 9 D. none of the above Thanks!
*April 1, 2015*

**chemistry**

B. How many moles of NaOH were delivered? C. How many Moles of weak acid were present in the solution? D. Calculate the molarity of the unknown weak acid solution Can you help me solve those problems as well.
*April 1, 2015*

**Economics**

Given a demand fxn of 20-2P and a supply fxn of -4+P for a perf. competitive market: 1. Calculate the equilibrium price and qty. (I got e. price = 4 and e. qty = 8 is that right?) 2. Calculate producer surplus, consumer surplus. (i got 8 and 4) 3. if the market becomes a ...
*April 1, 2015*

**Exponential Equations**

The Bruce’s purchased $2500 worth of GIC’s. How long, t, will it take for the investment to increase to $3500, if the interest rate is 2.75%. T= 3500/2000 =1.4 t= 1.4/1+0.0275 What do I do from here
*April 1, 2015*

**Exponential Equations**

The Bruce’s purchased $2500 worth of GIC’s. How long, t, will it take for the investment to increase to $3500, if the interest rate is 2.75%. What is the Fv and Pv
*April 1, 2015*

**SCHOOL**

SHOOL IS NOT FUN!!!!!! ..... Jk.... April Fools!!!! Have a good day everyone and please don't use jiskha to cheat. Just use it to check your answers! :)
*April 1, 2015*

**Math**

Find all the possible values of the expression. sin^-1 -(square root3/2) Ans: 4π/3 + (2π)n 5π/3 + (2π)n
*April 1, 2015*

**Finance - Loans problem**

Reiny the answer 307.33 you posted at the bottom is coming up incorrect. please if you can help i would be very grateful. A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments ...
*April 1, 2015*

**Chem **

How many grams of ice at 0°C and 101.3 kPa (standard pressure) could be melted by the addition of 0.80 kJ of heat?
*March 31, 2015*

**science**

a racer in a kayak travels a 300-meter river course at an average speed of 3 meters per second. how long does it take to complete the course?
*March 31, 2015*

**statistics**

A brewery's filling machine is adjusted to fill bottles with a mean of 31.9 oz. of ale and a variance of 0.004. Periodically, a bottle is checked and the amount of ale noted. (a) Assuming the amount of fill is normally distributed, what is the probability that the next ...
*March 31, 2015*

**Finance - Loans problem**

Can someone please explain how this problem is laid out to solve.A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7% compounded monthly. At ...
*March 31, 2015*

**Finance - Loans problem**

Please If you can. 307.33 is coming up as the wrong answer.
*March 31, 2015*

**Finance - Loans problem**

A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7% compounded monthly. At the same time the company sets up a sinking fund in order to repay...
*March 31, 2015*

**statistics**

What is the difference between alpha level and critical values?? Does the alpha level just help determine the critical value?
*March 31, 2015*

**AP Exams?**

I am in AP Chemistry and AP U.S Hisotry and I have planned on taking the tests. So far I have made an A+ in APUSH, but I an B in AP Chem. I've done kinda bad on the tests I've taken in there and I don't think I will do good on the Ap exam. I think I have a better ...
*March 31, 2015*

**Math**

would you need 90 tiles?
*March 31, 2015*

**Art help please**

1. D 2. C.
*March 31, 2015*

**Art help please**

French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an eye for composition ...
*March 31, 2015*

**Chemistry**

I am experiencing a major block.... I can't say.... 1micrometer= 1000nm 5micrometer= x..... because I'll get back the same thing So please help me, tell me the answer please.
*March 31, 2015*

**Reed**

Reed I posted my essay, sorry I just looked at it so I just posted it!
*March 31, 2015*

**reading and writing**

I think you're correct
*March 31, 2015*

**Art**

French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an eye for composition ...
*March 31, 2015*

**statistics **

If the null hypothesis is rejected at the .01 alpha level, it will be rejected at the .05 alpha level. Is this correct?
*March 31, 2015*

**english**

he is worried and grieving
*March 31, 2015*

**sonnet**

i need to write a sonnet
*March 31, 2015*

**science**

Leslie is Bb, she has brown eyes.
*March 31, 2015*

**Readin Reed plz read**

ok sorry just checked it! I am posting it now until I do not reply after you check plz do not remove cause then I won't see it! Did you know that you can text and call from an iPhone, but you can only do it with an iPod with WI-Fi! That is not so cool, so check out an ...
*March 31, 2015*

**Readin Reed plz read**

Umm.. Reed if it is ok with you I can copy and paste my essay and then u can check it then tell me and then remove it. Reed u helped me yesterday for the hook!
*March 31, 2015*

**basic programming principles**

if marital s=s then
*March 31, 2015*

**Social Studies **

What is a likely example that India supported East Pakistan's effort to gain Independence from Pakistan?
*March 31, 2015*

**Physics**

The force acts on a 1.7kg object whose initial speed is 0.44m/s and initial position is x = 0.27. Find the speed of the object when it is a the location x = 0.99m?
*March 31, 2015*

**Ethics & Social Responsibility**

Which group of people might not be fully autonomous in choosing to be a research subject?
*March 31, 2015*

**Chemistry**

What would be the consequence of competing equilibria, such as from other ingredients in an aspirin tablet in a titration lab results? What if there were several pain relievers in the same tablet? How could the error from these interferences be minimized?
*March 31, 2015*

**Calculus **

A certain magical substance that is used to make solid magical spheres costs $800 per cubic foot. The power of a magical sphere depends on its surface area, and a magical sphere can be sold for $20 per square foot of surface area. If you are manufacturing such a sphere, what ...
*March 30, 2015*

**Science help please!!**

Hi Katty! Had this question before, you are 100% correct :) Any other questions, I'll be glad to check ;)
*March 30, 2015*

**L.A**

In which sentence is the meaning of the word inarticulate best expressed? A. he impressed the audience with his inarticulate expressions B. the young girl was exceptionally animated and inarticulate. C. she had many ideas to share, but she was an inarticulate speaker*** D. the...
*March 30, 2015*

**L.A**

I think D as well
*March 30, 2015*

**L.A**

I don't think he's ashamed of anne. My other thought was D
*March 30, 2015*

**L.A **

What do you think Mr. Frank means in the passage from The Diary Of Anne Frank, act II? Passage: Annes Voice: In spite of everything, I still believe people ar really good at heart. [ Mr. Frank: ( slowly closes diary) Mr. Frank: "she puts me to shame" A. he is ashamed...
*March 30, 2015*

**american government**

3. Which of the following is true regarding senatorial courtesy? (Points : 1)
*March 30, 2015*

**Social Studies**

the answer is B
*March 30, 2015*

**Programming**

1.Do the planning and write an algorithm to solve the following problem. Prepare test data for the example to test all possibilities and draw a trace table. Sam works at a coffee company where all the employees receive a bonus of R700, except the employees in the coffee ...
*March 30, 2015*

**chemistry**

is trans-dibromoethene a proper way of labeling an alkene?
*March 30, 2015*

**Math**

What percentage of the total students chose skateboarding? Skateboarding boys=2 girls=1 A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank took you
*March 30, 2015*

**Math**

The demand for a commodity generally decreases as the price is raised. Suppose that the demand for oil (per capita per year) is D(p)=800/p barrels, where p is the price per barrel in dollars. Find the demand when p=55. Estimate the decrease in demand if p rises to 56 and the ...
*March 30, 2015*

**child day care**

there is really no way to get the answer out of the little bittie book they gave us i chose this but still dont understand and i hope your not a teachers cause you are no help to any one's education bringing them down God doesnt like Ugly.
*March 30, 2015*

**Math**

Tyler earns 7$ an hour mowing lawns. Write and solve an inequality that he can use to find at least how many hours he has to work to earn 100$
*March 30, 2015*

**math**

The answer is 25 lights
*March 30, 2015*

**Reading**

Umm.. Reed if it is ok with you I can copy and paste my essay and then u can check it then tell me and then remove it.
*March 30, 2015*

**Reading**

ya u can
*March 30, 2015*

**Reading**

Does this sound good?? Did you know that you can text and call from an iPhone, but you can only do it with an iPod with Wi-Fi!
*March 30, 2015*

**Reading**

Thanks
*March 30, 2015*

**Reading**

Yes I know what a hook is, It is something that grabs the readers attention, and sorry Ms. Sue!!
*March 30, 2015*

**Reading**

Can someone plz help me????????
*March 30, 2015*

**Reading**

Hi, Can someone tell me a good hook for a compare and contrast essay. Topic:- IPOD Vs. IPHONE, Thanks!!
*March 30, 2015*

**Probabilit**

Three marbles are drawn without replacement from an urn containing 4 red marbles, five what marbles, and two blue marbles. Determine the probability that None is red
*March 30, 2015*

**math**

^3ã54^5
*March 30, 2015*

**Math**

the number cube shown is rolled and the spinner shown is spun. find P(5 and blue). A. 4/6 B. 1/24*** C. 1/9 D. 1/16 *Btw the cube (or dice) has 6 sides and the numbers 1-6 and the spinner has 4 sides aka squares.. 2 yellow sqaures, 1 blue, and 1 green) The question is asking P...
*March 30, 2015*

**phusics**

a) k.e = 1/2 mv^2 = 1/2(0.05)(900)^2 note 50g converted into kg
*March 30, 2015*

**calc**

When production is 3000, marginal revenue is 7 dollars per unit and marginal cost is 5 dollars per unit. Do you expect maximum profit to occur at a production level above or below 3000? (Enter above or below.) If production is increased by 30 units, what would you estimate the...
*March 30, 2015*

**Calc**

The demand for a commodity generally decreases as the price is raised. Suppose that the demand for oil (per capita per year) is D(p)=800/p barrels, where p is the price per barrel in dollars. Find the demand when p=55. Estimate the decrease in demand if p rises to 56 and the ...
*March 30, 2015*

**Calculus **

The price-demand and cost functions for the production of microwaves are given as p=235−x40 and C(x)=14000+70x, where x is the number of microwaves that can be sold at a price of p dollars per unit and C(x) is the total cost (in dollars) of producing x units. (A) Find ...
*March 30, 2015*

**Calculus **

A company decides to begin making and selling computers. The price function is given as follows: p=−70x+4000, where x is the number of computers that can be sold at a price of p dollars per unit. Additionally, the financial department has determined that the weekly fixed...
*March 30, 2015*

**Calculus **

The total cost (in dollars) of producing x golf clubs per day is given by the formula C(x)=500+100x−0.1x2. (A) Find the marginal cost at a production level of x golf clubs. C′(x) = (B) Find the marginal cost of producing 35 golf clubs. Marginal cost for 35 clubs =
*March 30, 2015*

**Calc**

Suppose that the cost, in dollars, for a company to produce x pairs of a new line of jeans is C(x)=2200+4x+0.01x2+0.0002x3. (a) Find the marginal cost function. (b) Find the marginal cost at x=100. (c) Find the cost at x=100.
*March 30, 2015*

**maths**

Paul wrote five tests which were marked out of a total of 200 marks. Paul scored 40 out of 50 in a 6th test. What was his NEW average? HoW do I work out this type of sum.
*March 30, 2015*

**math 7**

Describe an example of an event that has a probability of zero and an event that has a probability of 100
*March 30, 2015*

**phy 111**

20.d
*March 30, 2015*

**French**

I had to fill in the blanks of this phrase with the following words: Word Bank: radoucira, irons, fera, etre, doux, devraient, pleuvra Phrase: La semaine prochaine, il est certain qu’il ne ___(1)___ pas du tout. Il ___(2)___ certainement plus ___(3)___. Les tempé...
*March 30, 2015*

**Precalculus **

Find an equation of the circular orbit of a satellite 500 miles above the surface of earth. Place the origin of the rectangular coordinate system at the center of Earth and assume that the radius of Eatch is 4000 miles.
*March 29, 2015*

**Precalculus**

I don't know but that's why I'm asking on this website.
*March 29, 2015*

**Precalculus**

I haven't learned how to do this.
*March 29, 2015*

**Precalculus **

Find and equation of the circle with center at (0,0) that passes through the poijt (5,2)
*March 29, 2015*

**exponential equations**

6. Staphylococcus bacteria has a doubling time, d ,of 18 minutes. Calculate how long, t, it will take for the population to increase, from an initial population of 400 organisms, to 6400 organisms.
*March 29, 2015*

**exponential equations**

If a brand new Nissan Frontier pickup truck has a current value of $22 500 off the lot, calculate how long, t, it will take to depreciate to half of it’s current value. This particular model has a depreciation rate of 23%. Give answer to 2 decimal places.
*March 29, 2015*