Sunday
November 23, 2014

Posts by maya


Total # Posts: 321

general science
0.o8
April 18, 2012

physics please help !
A helicopter is ascending vertically with a speed of 5.20m/s . At a height of 110m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: for the package equals the speed of the helicopter.]
April 15, 2012

Pre-calc
Could you possibly elabarate a little on to how you got those numbers please :) thanks you!
April 9, 2012

Pre-calc
An investment firm has a job opening with a salary o $30,000 for the first year. Suppose that during the next 39 years, there is a 5% raise each year. Find the total compensation over the 40-year period.
April 9, 2012

CHEMISTRY
A second-order reaction has a rate constant of 1.65 M–1 s–1. If the initial reactant concentration is 1.0 M, calculate the time (in seconds) required for the reaction to become 90% complete. i got 0.06734 seconds but thats incorrect i have no idea what i am doing ...
March 28, 2012

Math
Is it reasonable to interpret -16 & + 11 have the sum of 5. If not please explain
March 24, 2012

Math
A sphere is inscribed in a right cone. The slant height of the cone = the diameter of the base of cone. If the radius of the sphere is r, find the volume of the cone in terms of r.
March 22, 2012

math
explain how you could use grid paper to draw a rectangle with a perimeter of 18 units
March 20, 2012

English
Original sentence: The urgent care center offers a variety of services such as physician appointments, mental health, health education programs, and lab and X-ray work. My corrections: The urgent care center offers physician appointments, mental health evaluations, health ...
February 29, 2012

Math
Ned caught 1/3 pound of fish. Sarah caught 5/12 pound of fish. Jessica caught 1/6 pound of fish. Which diagram shows how to find how many pounds of fish they caught altogether. 2/6 2/6 1/6 3/12 5/12 6/12 1/3 5/12 1/6 1/12 5/12 1/12
January 26, 2012

Math
Ms. Sue. Are any of them correct
January 26, 2012

Math
Ned caught 1/3 pound of fish. Sarah caught 5/12 pound of fish. Jessica caught 1/6 pound of fish. Which diagram shows how to find how many pounds of fish they caught altogether. 2/6 2/6 1/6 3/12 5/12 6/12 1/3 5/12 1/6 1/12 5/12 1/12
January 26, 2012

Math
Damon, how did you get your answer?
January 26, 2012

math
Katie is 3/5 of the way to Brianna's house. Larry is 7/10 of the way to Brianna's house. How much closer to Brianna's house is larry
January 26, 2012

Math
Glenda wrote 1/7 of her paper on Monday, 1/14 of her paper on Tuesday, and 2/28 of her paper on Wednesday. She said she wrote more than half of her paper. Is she correct? Why or why not?
January 26, 2012

Math
Glenda wrote 1/7 of her paper on Monday, 1/14 of her paper on Tuesday, and 2.28 of her paper on Wednesday. She said she wrote more than half of her paper. Is she correct? Why or why not?
January 26, 2012

English
What does the things you carry say about you? The things we carry is largely determined by ________.
January 22, 2012

math
If you have a calulator TI-30XIIs put in your numbers 3474.8 on your upper left side press 2nd button;next press the button the right (DRG) the screen will flash the following: FLO SCI ENG with your right arrow(far right side) set it to SCI (scientific mode) press = and it ...
December 1, 2011

algebra
x+9>12 x+9-9>12-9 x>3
December 1, 2011

algebra
yes
December 1, 2011

organic chem
Thank you DrBob It makes sense since the PI(point of inflection)is calculated by adding the two pk values and dividing it by 2...Pk1/2+ Pk2/2= PI
December 1, 2011

organic chem
In the Titration of amino acids Glycine and Lysine Which data can be obtained with greater accuracy? 1.the pK values from the "legs" ? 2.the isoleric point from the point of inflection?
December 1, 2011

5TH GRADE MATH
I NEED HELP FINDING THE VARIABLE FOR THE FOLLOWING:57-BLANK-BLANK-33-BLANK-17
November 30, 2011

organic chem
Which data can be obtained with greater accuracy-the pK values from the "legs" or the isoleric point from the point of inflection? Titration of amino acids Glycine and Lysine
November 30, 2011

ALGEBRA
Combine and Simplify 2 + t/t-3 - 18/t^2-9 - Please explain
November 5, 2011

math146
8-3 ... thank u ..
November 3, 2011

math146
equation for subtract the result in C form the result in A ... is it C - A
November 3, 2011

chemistry ASAP
okay , the website you put does not work. But one last question. for sodium hydrogen arsenate it says to give the correct formula. how do i go about doing that? how do i start? i know that sodium is Na and that arsenate is AsO4^3-
November 2, 2011

chemistry ASAP
i ran into a problem that is tin(IV)dichromate i thought the answer was SN2(Cr2O7)4 but the book says the answer is SN(Cr2O7)2 CAN YOU PLEASE EXPLAIN WHY??
November 2, 2011

chemistry ASAP
can anybody please explain nomenclature to me ? how to name? for example: Na3PO3 NH4CLO2 AuNO2
November 2, 2011

chemistry
can anybody please explain nomenclature to me ? how to name? for example: Na3PO3 NH4CLO2 AuNO2
November 2, 2011

physics
A project is fire at angale of 45 with x-axis with the K.E 100J what is its K.E energy at maximum height?
September 25, 2011

Pre-Agbra
never mind
September 13, 2011

chemistry
Write "oxidation" before the reaction below which is anoxidation reaction; write "reduction" before the reaction belowwhich is a reduction reaction. a.____________________ Na----> Na+ (small+) + e- b.____________________ Cl + e- ----> Cl- What does it...
August 25, 2011

Physics _ Please help
25 kg of ice at 0° C is combined with 4 kg of steam at 100° C. What is the final equilibrium temperature in ° C of the system? (Lf = 3.33 x 105 J/kg; Lv 2.26 x 106 J/kg, specific heat capacity of water =4186 J/(kg.K)) Question 2 options: A) 40 B) 20 C) 60 D) 100 E) 8
August 12, 2011

Math
A spherical balloon is being inflated so that its volume is increasing at the rate of 200 cm3/min. At what rate is the radius increasing when the radius is 15 cm.
July 31, 2011

Chemistry
:D thankyou very much for explaining it all, it seems i was treating the 0.2^1/2 as 0.2*0.5 (being half of one...so wrong!). To get 0.4472 though, 0.2 needs *2.236, it dawned to me as 2.24, bringing so3 to 62.4g after rounding. I promise to practice my algebra. I appreciate ...
July 19, 2011

Chemistry
I thought so2 would be 0.4, I didn't have so3 correct on my ice table. I get x as 0.485; 0.471(x-0.4)=(0.4)(0.2)^1/2 0.471x-0.1884=0.04 0.471x=0.2284 But x needs to be 1.18 for so3 to be 0.78M(1.18 - 0.4) to multiply with 80, am i missing something?
July 19, 2011

Chemistry
equilibrium constant for; so3 <----> so2 + 1/2o2 is found to be 0.471M^1/2 @ 600deg C after a quantity of sulfur trioxide is allowed to come to equilibrium in a 1L flask @ 600deg C, 0.2 mol oxygen was found to be present. What mass of sulfur trioxide was initially placed...
July 19, 2011

Chemistry
what is the proper name for (CH3)2CHCH(OH)CH3?
June 27, 2011

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 ...
June 9, 2011

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.
June 1, 2011

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
May 30, 2011

calculus
The tangent to y = (ax)+b/(sqrt x) at x =1 is 2x-y=1. Find a and b. help?
May 27, 2011

advanced algebra
That is supposed to be 1/x sorry!
May 21, 2011

advanced algebra
How would i go about solving this complex fraction? [(x/3)-4] / [5+(1x)]
May 21, 2011

math
the number blank thirds is between 3 and 4. what could the numerator of this number be? explain your answer.
May 9, 2011

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 ...
April 25, 2011

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 ...
April 25, 2011

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.
April 25, 2011

Speechwriting
Hiya! Okay how can I introduce a speech without saying Goodmorning ladies and gentlemen? But not seem rude?
April 24, 2011

Social Studies
My pleasure
April 24, 2011

Algebra
I should just stop using this site... No one ever wants to help me anyways...
April 20, 2011

Algebra
I dont even know where to start with this problem... i'm supposed to simplify it but i dont get how, please help! 12e^x / e^4x I would really appreciate the help, thank you!
April 20, 2011

Algebra
ok i need help simplifying this problem. please :) 5e^x/6e it looks similar to this 5e^x ____ 6e Thanks!
April 20, 2011

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...
April 19, 2011

Algebra
OK THANKS!
April 10, 2011

Algebra
Thanks. What does that symbol mean? and how do i write it?
April 10, 2011

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?
April 10, 2011

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?
April 5, 2011

chemistry
0.03125M
March 30, 2011

Physics
100.32
March 29, 2011

physics
what is the prarticle diagram for the thermite reaction?
March 27, 2011

math
how do you solve: -3y=3x-9 and 2x-4y=12 and -3x=2y
March 15, 2011

math
wow thanks rieny :)
March 7, 2011

math
rieny that doesent make sense it cant be.
March 7, 2011

math
im in grade 4 i dont know what that is
March 7, 2011

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?
March 7, 2011

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?
February 22, 2011

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?
February 13, 2011

World History
There's too much information, my brain cant process it all. But i get the feeling it was good??
February 13, 2011

World History
What influence did the Mongol's Golden Horde have on the development of the Russian Empire? (Good or Bad?)
February 13, 2011

World History
Yes it does have to do with the Byzantine Empire because thats what we are studying right now...
February 13, 2011

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)
February 13, 2011

World History
Why is there such a wide diversity of people in Eastern Europe? What are some of the origins of these diverse groups?
February 13, 2011

math
slope = (y2-y1)/(x2-x1)=(8-0)/(-2+2) =8/0= infinity
February 12, 2011

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.
February 12, 2011

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
February 7, 2011

banyan elementary
Samantha has 7 tomato plants in 12 rows. How many tomato plants does she have? Solve using multiplication equations
January 19, 2011

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 ...
January 13, 2011

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?
January 13, 2011

math
i have no idea how to do this...
January 13, 2011

reading
What is the Antonym for the word RECIPE?
January 12, 2011

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)
January 12, 2011

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
January 7, 2011

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?
January 6, 2011

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?
January 6, 2011

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?
January 6, 2011

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?
January 6, 2011

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
December 19, 2010

English
What are some main points of rising action in the Scarlet Ibis?
December 15, 2010

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)
December 14, 2010

interesting log problem
sounds quite right to me. thanks!
December 12, 2010

interesting log problem
log base 2n 1944 = log base n (486* (2)^1/2) find n^6
December 12, 2010

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 ...
December 9, 2010

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 ...
December 9, 2010

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.
December 9, 2010

7th grade
i need help with social stuides describe islam in the 600's
December 8, 2010

Interger Science
Calculate the free-fall acceleration of a 20 kg bag of salt.
November 23, 2010

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.)
November 18, 2010

Pages: <<Prev | 1 | 2 | 3 | 4 | Next>>

Search
Members