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Posts by Lala

Total # Posts: 399

algebra
Yes you got them all right, good job!

Physics
A lightning bug flies at a velocity of 0.25 m/s due east toward another lightning bug seen off in the distance. A light easterly breeze on the bug at a velocity of 0.25 m/s. What is the resultant velocity of the lightning bug? I drew the .25 east but would I draw the vector ...

social study
answer please

algebra
2(5-8n)= -4(3+4n)

Subjects
You Will get a bunch of homework

Science
16g of bone displaced a volume of 8mL of water.what is the density of the bone?

Music
I think you should do singing

mathematical modeling
Person A opens an IRA at age 25, contributes $2000 per year for 10 years, but makes no additional contributes thereafter. Person B waits untill age 35 to open an IRA and contributes $2000 per year for 30 years. There is no initial investment in either case. Asumming an ...

physics
a cyclist travel a distance of 4km from P to Q then moves the distance of 3km at right angle to PQ. find its resultant displacement graphically?

u.s history
in what movement does participate james weldon johnson and zora neale

Physics
a convex mirror has a focal length of -0.90m. An object with a height of 2.5m from the mirror. Could u help me please!! :D

physics
explain body is thrown vertically downward?

Chemistry
thankkkkk youuuuu it was right!!!:)

Chemistry
What is the unit cell of calcium sulfide? anti-fluorite cesium cholride diamond fluorite graphite rutile sodium chloride zinc blende

world history
why was the congo free state not able to make a profit in the early years?

personal developmetn 20 Chapter 1
establishment

math
what should you call a man with a clamp

Matha
There are 6 girls and 5 boys. The teachet chooses 2 students random. What is thw probability of selecting a girl then a boy?

Math
You toss tails and roll an even number ( when you toss a coin and roll a number cube) Find the probability. I thought It was 1/3 but I think that is wrong.

World History
i don't understand what it is asking

World History
what did the fascists and natizes advocate and how did they govern their states? (20th century)

World History
What events led up to the cold war? I have this so far please tell me what i need to add, I need real events... The u.s and britan tried to counter russia's manipulation of eastern Europe. In 1945 the U.s developed the atomic bomb. in 1947, the u.s proclaimed the marshall ...

French
google translate.

Math- Algebra II
SOLVE.. Please show the steps so I'll understand it 8^x-2=(1/16)

Physics
Suppose a crate of mass 2.8 kg is placed on the plank in the figure below at a distance 5.1 m from the left end. Find the forces exerted by the two supports on the plank. (The mass of the plank is 12.0 kg.) Left Support N Right Support N The plank set on two pivots one at 3.0m...

college physics
Two cars of equal mass are traveling as shown in the figure below just before undergoing a collision. Before the collision, one of the cars has a speed of 19 m/s along +x, and the other has a speed of 31 m/s along +y. The cars lock bumpers and then slide away together after ...

college physics
Two cars of equal mass are traveling as shown in the figure below just before undergoing a collision. Before the collision, one of the cars has a speed of 19 m/s along +x, and the other has a speed of 31 m/s along +y. The cars lock bumpers and then slide away together after ...

Math
Simlplify 1/(2x) - 3/(x+6)

Math
Factorize (x+2)^2 + x^2 +6x + 8

SmartPhone Help
no it wouldn't does the blackberry torch come from at&t or t-mobile? trying check the sites like (the official carrier's site and see if they have the blackberry torch. AT&T T-Mobile Verizon Wireless Sprint those are the most popular cellphone cariers.

SmartPhone Help
carrier means like (t-mobile, verizon) what company?

Cuban culture
I tried googling this and I can't find anything. What makes Batidos (Cuban milkshake) special in Cuba?

math
why did they try to build a house on orgo's head?

Math- Algebra II
Thank you so much!

Math- Algebra II
Please check if I did this right... √(2x+1)+7= 3 -7 -7 √(2x+1)= -4 Square everything √(2x+1)^2= -4^2 2x+1=16 -1 -1 2x=15 divide by 2 on both sides x=7.5 CHECK: (Plug it in) √(2(7.5)+1)+7= 3 √(16)+7= 3 4+7=3 11 doesn't equal 3 so the answer is ...

geometry
how do you find the lenght of the midsegment of a trapezoid when one base equals 21 and the other 17 ?

business calculus
composite funtions

stoichiometry
Lick balls.

physics
A clump of soft clay is thrown horizontally from 30.63 m above the ground with a speed of 30.0 m/s. Where is the clay after 3.8 s? Assume it sticks in place when it hits the ground

Math
Simplify 1/2x-3/x+6

answer
0 (4), 1(5)

physics
20 newtons

Math
thanks for the help

Math
y=-2x+1

Math
y=2/3x-1

math
eggs spear a mint

math
What were the headlines after a mad scientist trained two eggs to attack a candy store with sharp sticks?

math graphing the y-intercept
solve for y set equation equal to each other solve for x use "x'' value to fo y

Thermodynamic
274.2kj

Math
50= A+S 2s+3a= $135 s= -a+50 2(-a+50) + 3a= 135 Now solve for a then plug in what you get for a and solve for s

World History
1450-1750 C.E With the Asian Trading Network.

World History
How did the Europeans establish and maintain their trading empires with Asia? ? idk help

Science
Temperature

Chemistry
The liquid to gas phase transformation (evaporation) is an endothermic process. It requires heat to be accomplished.

Probability
urn1 contains 3 red chips and 1 white chip. urn2 contains 2 red chips and 2 white chips. 1 chip is drawn from each urn and transeferred to the other urn. then a chip is drawn from the first urn. what is the probability that the chip ultimately drawn from urn1 is red

HELP IN ENGLISH
Would the fact that the title is called Bloom because the girl in the book blooms open her new personality be a symbol or irony?

English
Would the fact that the title is called Bloom because the girl in the book blooms open her new personality be a symbol or irony?

English
so it would be Magic realism, USA?

English
The book is Bloom by Elizabeth Scott and the copyright date is May 2007

English
I'm writing a Precis of a book and it asks to to put the literary period and country I tried to look but I still don't really understand. Thanks

math
try looking over old notes, and memorizing formulas that are commonly used.

algebra
To solve the inequality -1/2 k is greater then or equal to -5, Danny multiplied both sides by the reciprocal of -1/2 . His solution was k is greater then or equal to 10.What mistake did he make? Danny checked his solution, but his check did not let him know that he had made an...

World History
brazil they didn't have forced labor becuase the afican's did it. whereas in Portugal there was much forced labor

World History
How did the Portuguese experience in Brazil differ from the Spanish experience in Latin America? ... I don't really have any idea HELP please.

World History
THANK YOU.

World History
By building colonies?

World History
how did the caribbean serve as a model for the spanish empire?

World History
What Iberian institutions were transplanted to the Americas?

English
The Swing by robert louis stevensen

US History
Why do you think freedom and independence were so important to the colonists?

history
Why was the destruction of the buffalo significant to the lives of Native Americans on the Plain?

history
thanks

history
assimilation into American culture

geometry
plug in whatever points they gave you into the midpoint formula

Chemistry
What is the difference between and orbit and an electron orbital?

World History
How did religion and trade connect Africa to a larger world; with what results?

World History
What factors contributed to Islam's spread to south and southeast Asia?

Spanish 1
Hey the person above stole my name!

Spanish 1
12.d 14.c

U.S. Government
how can a young citizen become active in politics?

English
What is an essay-style question, and how would I write one about a book I read? I don't have to answer the question

Math
What is the answer and how the steps to solving y-15/32=2 6/7

math
kelly subtracted 2.3 from 20 and got 17.7 explain why this answer is reasonable

grammar
men fish gulf of mexico

chemistry
If a mole of hydrogen gas (H2) contains 6.02 x 10^23 molecules, how many molecules are there in 10.0 moles of hydrogen gas? Answer 60.20 x 10^23 molecules 6.0 x 10^23 molecules 6.02 x 10^20 molecules 6.02 x 10^24 molecules None of these is correct. would it be 6.02x10^24 or ...

ap history
when did american economic institutions began to be shaped in a capitalist framework? A.during the colonial period B.during the federalist era C.during the jacksonian era D.during the civil war E.during the late 1890s

science
a nickel is about 2 millimeters thick,or 2/1,000 of a metter. how many nanometers is?

science
i don't see it

Maths
A box with no top is to be built by taking a 6'' - by - 10'' sheet of cardboard and cutting x - in. squares out of each corner and folding up the sides. Find the value of x that maximizes the volume of the box.

math
I need real life example word problems using to ngative interjers.

Calculus
X2-7x-12/x-2

Individual Income
A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A

geometry
15

Calculus
What is the derivative and second derivative of 3x/(x^2-4)

Vectors
The point P(-1,0,1) is reflected in plane y-z=0 and has P' as its image. Determine the coordinated of point P'

dress making
For cutting dress fabric, it's recommended that you use

chemistry
How can one create an experiment that will deteremine the Ksp of a solid like Ca(OH)2

Chemistry
So far i have deltaH= 20g x 4.18 j/g deg C x 80 deg = 6.688KJ AND DELTA H= 1.11mol x 40.8 KJ/Mol = 45.3 kj but i don't know what to do next :(

Chemistry
If 55.0 kJ of heat are added to 20.0 g of water at 20oC, what is the final temperature of the system?

chemistry
A thimbleful of water at 100 deg C has a higher temp than a swimming pool full of water at 20 deg C, but the pool has more thermal energy than the thimble. Explain why this is possbile?

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