Monday
October 24, 2016

# Posts by maya

Total # Posts: 442

can someone pleese help
i really need help pleeese
November 2, 2012

Math 9 pleese help
Justin wants to build a multi media room. 1/2 of the room will be for a home movie theater. 1/2 of the home theater will have comfy seats. The comfy seats will take up 24 m. 1. Draw the room and label all the areas 2. What are all the possible dimensions of the comfy seat area...
November 2, 2012

math
Explain? which is more accurate: measuring to the nearest millimeter or to the nearest eighth of an inch
October 21, 2012

algebra
the atmospphere normally exerts a pressure of about 15 pounds per square inch on surfaces at sea level. about how much pressure does the atmosphere exert ona surface 30 square inches in area? would it be 2pounds
October 3, 2012

math
cdbuujejcqwubcicyev yvycevcuu6vvvduvccieyyg t7546
September 19, 2012

i don't now how to find the number didgt 4 and by 2
September 19, 2012

Math
There's a bowl full of candy bars. Mike takes1/3 of the candy bars but returns 4. John then takes 1/4 of what was left but returns 3 , and Henry took 1/2 of the remainder but returned 2. The bowl had 17 candy bars left. How many candy bars were originally in the bowl
September 4, 2012

Health
Underweight, healthy, overweight its c
July 28, 2012

The atmosphere on Mars is almost all carbon dioxide (CO2), and has a pressure of about 6.9×102 Pa, much less than that of Earth. At −22°C (a warm day on Mars), what is the mass of one cubic meter of the atmosphere? (Assume the atmosphere is completely CO2.) I ...
June 22, 2012

dy/dx = (1y)+ (x)dy/dx + 5x^4y^2 + 2x^5y(dy/dx) + 9x^2 -y - 5x^4y^2 - 9x^2 = x(dy/dx) + 2x^5y (dydx) (-y -5x^4y^2 -9x^2)/ (x + 2x^5y) = dy/dx
June 21, 2012

English(check)
His long, red beard fascinated the little boy. One scraggly, leafless plant sat in the window. I followed the trail of sticky, green goo. Roxanne showed me her new, wireless modem. An experienced mechanic, Alan, has a busy shop and a full schedule. Under the bed, in Jerri’...
June 21, 2012

math
A tank, with a rectangular base and having vertical sides of height 4 m, is initially full of water. The water leaks out of a small hole in the horizontal base of the tank at a rate which, at any instant, is proportional to the square root of the depth of the water at that ...
June 21, 2012

Pre-calc
Haha, right, thanks.
May 30, 2012

Pre-calc
Find the Degree Measure of the angle between the vectors. U=-4i+4j V=-4i+4j
May 30, 2012

chemistry
Looking for help with this too
May 29, 2012

Pre-calc
Heres the equation y^2 -4x^2 +8x=20 For the center i got (-1,0) For the vertices i got (-1,4), (-1,-4), (1,0), (-3,0) And how do you find the foci?
April 29, 2012

Pre-calc
Haha ok i totally get it thanks!
April 29, 2012

Pre-calc
Thank you guys so much :)
April 29, 2012

Pre-calc
Heres the equation: (x^2)-(4y^2)-(4x)+(24y)-(36)=0 Your supposed to find the coordinates of the center, foci, and vertices, and the equations of the asymptotes of its graph. So first you complete the square right? (x^2 -4x+4)-4(y^2 +6y+9)=36+4+36 [((x+2)^2)/76] -[(y+3)^2)/19]=...
April 29, 2012

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

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

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

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

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

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 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!
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

physics
hkgfffc
April 6, 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 don't 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

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