Sunday
April 20, 2014

Posts by mariah


Total # Posts: 160

chemistry
Cyanic

Help Math!
Battery Power Problem. A certain type of thermal battery for an airplane navigation device backup power has a mean life of 300 hours with a standard deviation of 15hours. What proportion of these batteries can be expected to have lives of 322 hours or less? Assume a normal dis...

Chemistry
Calculate the freezing- and boiling-point changes for a solution containing 12.0 g of naphthalene (C10H8) in 50.0 g of benzene.

MATH
3/8

math
I need a sketch and label of a figure that has an area of 47 sq. cm.

geometry
24

statistics
what is the actual base of the sears tower

chemistry
Choose any two temperatures and corresponding vapor pressures in the table given, and use those values to calculate change in vaporization for dichloromethane (in kj/mol). T(K) (Pvap (mmHg) 263 80.1 273 133.6 283 213.3 293 329.6 303 495.4 313 724.4

chemistry
hoose any two temperatures and corresponding vapor pressures in the table given, and use those values to calculate for dichloromethane (in ). () () 263 80.1 273 133.6 283 213.3 293 329.6 303 495.4 313 724.4

elementary
correct spelling of the following: two (sister's, sisters') bicycles??

Algebra
How would i solve: 1/6(12-6x)= 5(x+4)

Spanish 1
How would I complete this phrase. Nosotros BLANK americanos. BLANK alumnos en una escuela secundaria. BLANK alumnos en la escuela martin luther king.

4th Grade Math
23 x 17 20 x 10 = 200 3 x 7 x = 21 7 x 20 = 140 3 x 10 = 30 200+140+30+21 = 391 23 x 17 = 391

Statistics
For df = 25, determine the value of A that corresponds to each of the following probabilites: a. P(t >- A)= 0.025 b. P(t <- A)= 0.10 c. P(-A <- t <- A)=0.99

Statistics
From past experience, an airline has found the luggage weight for individual air travelers on its trans-Atlantic route to have a mean of 80 pounds and a standard deviation of 20 pounds. The plane is consistently fully booked and holds 100 passengers. The pilot insists on loadi...

6th grade math
cut each piece into 3s

physics
A jumbo jet must reach a speed of 360 km/h on the runway for takeoff. What is the least constant acceleration needed for takeoff from a 1.80 km runway?

chemistry
how many grams of solid NaOH are required to prepare 200.0 mL of a .050 M solution?

Biochemistry
what molar mass are you supposed to find?

7th grade math
got it thank you

7th grade math
how did you get the answer

7th grade math
alan,bonnie and calvinshared 153 marbles alan gets 3 times as miny as bonnie and calvin gets 6 more than alan .how miny marbles does each person get

pre-calc
for f(x)=2^x is f(x) an increasing function.?

pre-calc
for f(x)=2^x is f(x) an increasing function.?

literature
100% once again! Thanks too ya'll :)

math
its the end of the lion

math
The average of x and y is 5 and the average of x,y, and z is 8. What is the value of z? a. 19 b. 14 c. 13 D. 11 e. 3 I know that the average of 7 and 3 is 5 (if 7 and 3 are x and y) but I don't know what z is.

7th grade
WHAT DOES CONTRASTING ELEMENTS MEAN?

geometry
the intersection of two line is a ____?

Literature-Poetry
Ashley is right! And so is Country girl! 100% the only one i missed was 5 and thats because I accidentally put A instead of C

math
Thank you Paula :)

math
I was just thinking maybe I didn't state the question correctly. I wasn't trying to irritate anyone and I don't appreciate being scolded for that.

math
I'm sorry to keep asking, but I really need help finding this windows. Usually I put the x and y values as 10 and -10, but with the numbers I don't know how to do it. Is there any way they can be automatically put into the calculator?

math
Can someone please help me with my previous question? I'm not sure what window to use for the equation I previously wrote.

math
How would I find the right window to graph a parabola in? The equation is -8874.6x+113537.2 My teacher said that if the parabola should be tight. But I can't seem to graph this equation. I don't know window I should use on my graphic calculator for this equation.

Lit
I have read the book, and I wasn't sure. In the end Henry is a man, so wouldn't the author think war is good? How does the author say it's bad?

Lit
Using only Stephen Crane's novel, the Red Badge of Courage, explain how he felt about war. Didn't he like it because it was glorious and it made boys turn into men?

Social Studies
I am working on the same crossword, but we dont have a book only notes. I found that colonists sent to the americas by judges were debtors, and he sent "royal" governor. But i also cant find the sole right to trade in an area, a colony leader representatives who made...

Math
28

science
if yoy had 1.5 liters of water, how many millilters woud you have?

Economics
Do all firms in all market structures have anything in common? I think not. They all consist of buyers and sellers. In Principals of Microeconomics courses, economists make several general economic assumptions (perhaps incorrectly I might add) about firms and the behavior of f...

Economic
Suppose that labor is the only input used by a perfectly competitive firm that can hire workers for $50 per day. The firm’s production function is as follows: Days of Labor/Units of Output: 0/0, 1/7, 2/13, 3/19, 4/25, 5/28, 6/29, 7/29 c. Compute the demand schedule showin...

Economics
6. Show the effect of each of the following events on the market for labor in the computer manufacturing industry. Use graphs. a. Congress buys personal computers for all American college students. Wouldn't the demand curve shift to the right while the supply curve stays t...

Economics
3. Suppose the Clean Springs Water Company has a monopoly on bottled water sales in California. If the price of tap water increases, what is the change in Clean Springs' profit-maximizing level of output, price, and profit? Explain in words and with a graph. I would think ...

Music
I heard that "Itsbynne Reel" features stylistic elements of rock and jazz (especially bebop), but I don't recall that this song had bebop elements, can anyone clarify? Yes, according to this article, bebop http://www.scaruffi.com/history/jazz17e.html "Philad...

Music
Doesn't Louis Armstrong begins "West End Blues" with a stop time? You might try browsing these 2 links: http://www.google.com/search?as_q=Armstrong+%22stop+time%22+%22West+End+Blues%22+starts&hl=en&num=10&btnG=Google+Search&as_epq=&as_oq=&as_eq=&lr=&as_ft=i&as_fi...

Economics
10. An industry currently has 100 firms, all of which have fixed cost of $16 and average variable cost as follows: Quantity / Average variable cost: (1/$1),(2,$2), (3,$3), (4,$4), (5,$5), and (6,$6) b. The price is currently $10. What is the total quantity supplied in the mark...

Economic
How is income distribution affected in monopolies? The market for fertilizer is perfectly competitive. Firms in the market are producing output, but they are currently making economic losses. a. How does the price of fertilizer compare to the average total cost, the average va...

History
What is western civilization? That usually refers to the civilization of Europe, and lands originally colonized by Europeans, such as the Americas and Australia.

Music
Did the Phantom of the Opera have a traditional orchestra without amplification? I thought that the Phantom of the Opera didn't ave a traditional orchestra without amplification is this correct? Did the Phantom of the Opera used successfully opera voices and more tradition...

Economics
Consider total cost and total revenue given in the following: (Quantity/Total Cost/Total Revenue): (0/8/0), (1/9/8), (2/10/16), (3/11/24), (4/13/32), (5/19/40), (6/27/48), (7/37/56) Can you tell whether this firm is in a competitive industry? If so, can you tell whether the in...

Music
Did Quincy Jones begin his career playing trumpet with Lionel Hampton? Yes. reference: http://www.rhino.com/store/ProductDetail.lasso?Number=74363 Thanks for the information.

Economics
1. Your roommate's long hours in chem lab finally paid off--she discovered a secret formula that lets people do an hour's worth of studying in 5 minutes. So far, she's sold 200 doses and faces the following average-total-cost schedule: Q = 199 & ATC = $199 Q = 200 ...

Economics
The chapter states that the elderly population in the United States is growing more rapidly than the total population. In particular, the number of workers is rising slowly, while the number of retirees is rising quickly. Concerned about the future of Social Security, some mem...

Economics
The chapter states that the elderly population in the United States is growing more rapidly than the total population. In particular, the number of workers is rising slowly, while the number of retirees is rising quickly. Concerned about the future of Social Security, some mem...

Music
What are rock ensembles? I went searching around the net to find out and all i came up with was the names of some really good rock bands. I'll try find out something useful but it might take a while =( An "ensemble" is a small group of musicians playing the same ...

niagara falls
what are the Physical Featuers of Niagara Falls? The important features are the height of the drop, the widths of the several sections, and the water flow rate. You can find data on these easily with a search engine. http://wonderclub.com/WorldWonders/NiagaraHistory.html The r...

History
Who is King Tut's father and where is his tomb. http://www.kingtutone.com/tutankhamun/life/ Fourth paragraph =)

civic
homework

mathh (unit rate)
i hate math whats the ratio of 270 mi in 5 h as a unit rate ??????

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