Posts by maya

Total # Posts: 587

Chemistry
what is the proper name for (CH3)2CHCH(OH)CH3?

Chemistry
A certain headache relief tablet is composed of monoprotic acetylsalicylic acid(C9H8O4(s)) and an inert filler. A 4.00 g tablet was crushed and dissolved to make 40.0 mL of solution. The solution was then titrated with 0.900 mol/L NaOH(aq). The volume of NaOH(aq) needed to ...

chemistry
Help! The concentration of a solution of hydrochloric acid is 1•00 ± 0•05 mol dm−3 and the volume is 10•0 ± 0•1 cm3. Calculate the number of moles and state the absolute uncertainty.

trig
Ok, so im brand new at trigonometry. If i have a right triangle with an acute angle of 30° an opposite side of 4 and a hypotenuse of x how do ii find x

calculus
The tangent to y = (ax)+b/(sqrt x) at x =1 is 2x-y=1. Find a and b. help?

That is supposed to be 1/x sorry!

How would i go about solving this complex fraction? [(x/3)-4] / [5+(1x)]

Anatomy
hhhshhs

math
the number blank thirds is between 3 and 4. what could the numerator of this number be? explain your answer.

economic
supposes that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expected. Using a method similar to the GDP deflator, compute the percentage change of the overall price level. Also use 2009 as ...

economic
supposes that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expectedInflation during the 1970s was much higher than most people had expected when the decade began.How did this affect ...

economic
supposes that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expected.

Speechwriting
Hiya! Okay how can I introduce a speech without saying Goodmorning ladies and gentlemen? But not seem rude?

Social Studies
My pleasure

Algebra
I should just stop using this site... No one ever wants to help me anyways...

Algebra
I don't even know where to start with this problem... i'm supposed to simplify it but i don't get how, please help! 12e^x / e^4x I would really appreciate the help, thank you!

Algebra
ok i need help simplifying this problem. please :) 5e^x/6e it looks similar to this 5e^x ____ 6e Thanks!

statistics
At a church bazzar they have a game of chance that consists of picking a two digit number(0-9).You can bet 1\$ by picking a two digit number if you match two numbers you win 25\$ if you match one the numbers in the same order you win 3\$ if you bet 24 and 42 comes up you lose,but...

Algebra
OK THANKS!

Algebra
Thanks. What does that symbol mean? and how do i write it?

Algebra
Perform the indicated operation and state the domain. Let f(x)=x-1 and g(x)=x+1 f(x) - g(x) Heres my work (x-1) - (x+1) x-x=0 and -1-1=-2 Answer =-2 because the x's cancel each other out. How do i find the domain when there is no x in the answer?

physics
hkgfffc

algebra
use the Substitution Method. Please give it a try. y = 3x + 4 5x + 3y = 12 Why is the substitution method preferred in this case?

chemistry
0.03125M

Physics
100.32

physics
what is the prarticle diagram for the thermite reaction?

math
how do you solve: -3y=3x-9 and 2x-4y=12 and -3x=2y

math
wow thanks rieny :)

math
rieny that doesent make sense it cant be.

math
im in grade 4 i don't know what that is

math
the floor of a room is a rectangle. it has a perimeter of 22m and an area of 24 square meters. what are the length and width of the room?

physics
Speedometer readings are obtained and graphed below as a car comes to a stop along a straight-line path. How far does the car move between t = 0 and t = 14 s?

AM I RIGHT?
Ok i have done some more reading, and i get the feeling it was bad. Because it isolated the people from the rest of the Eastern EMpire? But i have to write an entire essay on this topic? what else can i say?

World History
There's too much information, my brain cant process it all. But i get the feeling it was good??

World History
What influence did the Mongol's Golden Horde have on the development of the Russian Empire? (Good or Bad?)

World History
Yes it does have to do with the Byzantine Empire because that's what we are studying right now...

World History
Well if you look at its geographical location does it seem like a lot of people would come there? (this is why i posted this Q, it doesnt make sense)

World History
Why is there such a wide diversity of people in Eastern Europe? What are some of the origins of these diverse groups?

math
slope = (y2-y1)/(x2-x1)=(8-0)/(-2+2) =8/0= infinity

Calculus BC
Find the volume if the region enclosing y=2x, y=0, x=3 is rotated a)about the y-axis b)about the line x=3 c)about the line x=4.

geometry
given: chord AB is parallel to chord CD prove if two chords of a circle are parallel, the two arcs between the chords are congruent. Prove: arc AC is congruent to arc BD

banyan elementary
Samantha has 7 tomato plants in 12 rows. How many tomato plants does she have? Solve using multiplication equations

math
i'm sorry i left out one part. "A rectangle is 4 times as long as it is wide. A 2nd rectangle is 5 centimeters longer and 2 centimeters wider than the first. The area of the second rectangle is 530 square centimeters greater than the first. What are the dimensions of ...

math
A rectangle is 4 times as long as it is wide. A 2nd rectangle is 5centimeters longer and 2 centimeters wider than the first. what are the dimensions of the original rectangle?

math
i have no idea how to do this...

What is the Antonym for the word RECIPE?

dressmaking
there are mistakes in those answers, I just did this test. here the correct answers 1. B (reference for study book 042014 PAGES 34, 35) 5. C (reference for study book 042014 PAGES 25-27)

math
rectangle A has length 12 cm and width 6 cm and while rectangle B has llength 8 cm and width 5 cm .find the ratio of the size of and angle of A to the size of an angle of B

Physics
How much time is needed for 5.0 N force to increase the speed of a 0.248 kg object from 12 m/s to 56 m/s?

Physics
How much force is needed to make a 1,400 kg car moving at 35 m/s come to a stop in 5.2s?

Physics
How much force is needed to make a 1,400 kg car moving at 35 m/s come to a stop in 5.2s?

Physics
How much time is needed to completely stop a 1600 kg car moving at 35 m/s if an average force of 4200 n is applied?

Calc
1. For what value(s) of x is f(x) = (x-1) / (x^2 - 1) discontinuous? 2.) f(x) = (1)/(x^2) is continuous for all real numbers EXCEPT: a. x=0 b. x=1 only c. x=1 and x=-1 d. x=-1 only e. x=2

English
What are some main points of rising action in the Scarlet Ibis?

Math
Find the equation that represents all of the points that are three times as far from (6,6) as they are from (2,0)

interesting log problem
sounds quite right to me. thanks!

interesting log problem
log base 2n 1944 = log base n (486* (2)^1/2) find n^6

Math hw
A corporation has 24 shareholders holding 4140 shares. The founder of the company retains 50 % of the companies shares. The remaining shares are equally divided among his 23 grandchildren. By the company's articles of incorporation, the voting weight for each partner is ...

Math help
A corporation has 30 shareholders holding 2900 shares. The founder of the company retains 50 % of the companies shares. The remaining shares are equally divided among his 29 grandchildren. By the company's articles of incorporation, the voting weight for each partner is ...

Calculus
is the region bounded by x=0? if no, then it is in fact infinite... if yes, then: 1) find the points of intersection. they are x = 1/2 and x = 0. 2) take the integral of pi*(4x^2)^2 from 0 to 1/2.

i need help with social stuides describe islam in the 600's

Interger Science
Calculate the free-fall acceleration of a 20 kg bag of salt.

physics
A 3.5 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 19 N at an angle θ = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume the positive direction is to the right.)

english
we're the one and only primo exemplary, boisterous in a fun groove and rapturous in our own fascinating way. check parallelism???? tnx

Math
Thank you!!!

Math
Is it how?

Math
A tropical water lily doubles in size each week. If it takes 60 weeks for the plant to completely cover a pond, when will half the pond be covered?

the lesser of two consecutive even intergers is 10 more than one-half greater. Find the intergers

math
five 150ml cans of perfrct prt dog food \$1.26. twelve 400ml cans of doggies love it for \$7.38. ten 150ml cans of rover's chow for \$2.60. six 400ml can of man's best forend for \$3.94. Which pet food should ms.jones buy? explain in as many differnt ways as possible??

language arts
The rules require that each contestant make his or her own kite. What is the simple subject word?

arithmetic
i have difficulties understand what this means... numerals seventeen tens and twelve ones can u help

art
Give two reasons why jackson pollack's style of painting is considered important?

ryme
what rhyes with candy

practice book
ok thank youso much

practice book
grt rid of the double negatives you sure its too hard a life?

chemistry
energy level

accounting
create a balance sheet for this company from May 1 to August 31.Deposit\$1000,\$600 loan,August 31-balance of checkbook=\$690,\$400 supplies,Owe employees\$1900.00+\$200more,\$600 for 6 month lease in advance,\$300 repair bill,\$300 trailor for equipment,\$460 withdraw for owner. Need ...

chemistry AP
You have to design a buffer based on one of the systems below System 1: HA1 and A1-1 K= 4 E-3 System 2: HA2 and A2-1 K= 5 E-4 System 3: HA3 and A3-1 K= 6 E-5 For the following parts assume that the buffer above in system2 has been constructed with [HA] =1M and that there is no...

chemistry AP
You have to design a buffer based on one of the systems below System 1: HA1 and A1-1 K= 4 E-3 System 2: HA2 and A2-1 K= 5 E-4 System 3: HA3 and A3-1 K= 6 E-5 For the following parts assume that the buffer above in system2 has been constructed with [HA] =1M and that there is no...

chemistry AP
methyl red has the following color changes red 4.2 -8.3 yellow a)write the ionic equilibrium equation b) If a small quantity of methyl red is placed in a solution with a pH of 4.5 . calculate the approximate value of [In]/[HIn]. What colour would be observed on the basis of ...

ALGEBRA
I NEED help on the following problem can some one help me please and thanks 5x-y+z= 8 2x+2y-3z= 28 x-3y+2z= -15

MATH

math
if 9th term of an A.P is 0.prove that its 29th term is double the 19th term.

math
if 9th term of an A.P is 0.prove that its 29th term is double the 19th term.

chemistry
1. PV=nRT Par(1L)=(0.035mol)(0.0821)(25+273) =0.856 atm 2.Ptotal = Par + Pethane Pethane= 1.00atm-0.856atm = 0.144atm

science
Are there any questions on earth that haven't been answered or are to compicated for scientists to get to or understand?

For solid the particles stay together you can compare that to best friends that stick together. For Liquid the particles move and start going everywhere, compare that to friends. For gas the particles move really fast and some go out because they are moving too fast why don&#...

science
Which class are you in???

What are the implications of "compare and contrast" techniques used in the workplace?

what can you tell me about Amerigo Vespucci?

Math
The deck in hopes backyard is round. It has 5 posts evenly spaced around the edge to support a trellis. For her birthday party, she wants to connect each post to all the other posts with crepe-paper streamers. How many streamers will she need?

visual
What comment is Billy Wilder making with the reversal of sexual stereotypes in Some Like it Hot.?

rounding decimals to the greatest number
what is the greatest no. thatcan be rounded to the nearest ten tho usand

Write in expanded form 17,045 17,000 + 40 + 5 ? is this right

Algebra 1A
one more than one-fourth the square of a number x is y

science
okay

science
an experiment where only one variable is changed and all others are kept constant

science
thanks

science
i found it thanks also what are science subjects and their definitions

science
okay thanks and how about 25 tools used by scientists and tell what they are used for

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