Monday
April 20, 2015

Posts by kate


Total # Posts: 1,758

grammar
Is this sentence. Mr. and Mrs. Lopez's plane tickets, incidentally were found in the lobby. Is this correct punctuation?
May 29, 2011

Algebra
I could use some help on this please. Write a linear function that satisfies the given conditions: h(-1) = 4, h(0) = -5 Thanks!!!
May 22, 2011

Physics
In a physics lab experiment, a spring clamped to the table shoots a 18 g ball horizontally. When the spring is compressed 20 cm, the ball travels horizontally 4.9 m and lands on the floor 1.3 m below the point at which it left the spring. What is the spring constant?
May 17, 2011

statistics
The following data lists the average monthly snowfall for January in 15 cities around the US: 37 33 35 27 9 45 22 8 42 48 37 39 9 15 12 Find the mean, variance, and standard deviation
May 15, 2011

calculus
the derivative of f(x) = e^(sin x)cos(x)
May 4, 2011

calculus
f(x) = e^(sin(x))cos(x)
May 4, 2011

calculus
f(x) = e^(sin(x))cos(x)
May 4, 2011

calculus
i missed something in it sorry. it was ∫sec 2x tan 2x dx
May 4, 2011

calculus
its sec 2x
May 4, 2011

calculus
i dont get what you mean?
May 4, 2011

calculus
∫sec 2x tan x dx
May 4, 2011

freshman chem
if 5.00 g of ethanol is added to 15.0g of whater, what is the % concentration of ethanol in water??
May 4, 2011

chemistry
if 5.00g of ethanol is added to 15.0g of water, what is the % concentration of ethanol in water? THANKYOU
May 4, 2011

English - Macbeth
Think about Macbeth’s position at the conclusion of Act III. In what ways has his ambition, which allowed him to obtain the Scottish throne in the first place, begun to be detrimental to him? Cite specific examples from the play in your response. What does this question ...
April 28, 2011

math
16-4+1 = 13 13 to the 2nd power = 13 *13 13 * 13 = 169
April 27, 2011

English
I just finished reading Macbeth for school. My teacher assigned a essay for us to do. She asked if we think the witches' predictions were right or if the witches' predictions were disappointing because of duality and doublespeak. I said that I believe in neither and I ...
April 27, 2011

math
the answer ie 30
April 26, 2011

Math
$307,$330,$440,$405 (range
April 24, 2011

chemistry
A 1.00-L sample of dry air at 25 °C contains 0.0319 mol N2, 0.00856 mol O2, ... The main components of dry air, by volume, are N2, 78.08%; O2, 20.95%; Ar, ... by volume, of the following main gaseous components: N2, 74.1%; O2, ... What is the partial pressure of each gas ...
April 19, 2011

allied health part 2
I go to a medical high school, so this isn't to unfamiliar, but aren't C and D both medical care operations? I'm leaning towards D....
April 13, 2011

Physiology
The BP cuff constricts arteries and veins, so when the blood pulses to try and get through, that's what you'd hear. (The pounding) If that makes sense....?
April 13, 2011

Chemistry
Calculate the amount of heat required to raise the temperature of a 33 g sample of water from 6 Celsius to 24 Celsius.
April 13, 2011

stereotypes in psychology
Sorry. But who generally fit these based off of beliefs.
April 11, 2011

stereotypes in psychology
are good dancers. drive Hummers. have more fun. are great lovers. cause trouble. are ditzy. are on welfare. live off other people. have hot tempers. are good with money. drink a lot. eat a lot.
April 11, 2011

statistics
Among 17 metal parts produced in a machine shop, 6 are defective. If a random sample of four of these metal parts is selected, find: (a) The probability that this sample will contain at least three defectives. (Do not round the intermediate answers. Round your answer to 4 ...
April 8, 2011

Logarithms
Solve for x: {{{ln(x)+x=5}}}
April 8, 2011

calculus
determine the dimensions of a rectangular solid (with a square base) with maximum volume if it's surface area is 289 meters
April 7, 2011

World history
Try and do your own homework instead of posting the whole worksheet onto here
April 6, 2011

Geometry
Solve for x: 2 to x+1=x+2 to 3 or 2 to x+3= x+2 to x+5 (the proportions end up being the same in the end) I keep getting to the part after you FOIL, and then I get stuck
April 5, 2011

math
Well, when you know how many hours, you multiple that by 2 (for both days he will work), and then the answer to that by his salary of a whopping $750.
April 4, 2011

math
I agree. He surely doesn't work 24 hours a day for 2 days straight with a $750 salary? Come to think of it, I might if I made that much an hour!
April 4, 2011

elapsed time
I'm sorry 10:52 - 2:37 = ____ PM PM not AM :)
April 4, 2011

elapsed time
Subtraction is key! 10:52 - 2:37 = ____ AM? Solve it to find the answer.
April 4, 2011

elapsed time
2:48
April 4, 2011

math
Specify please??
April 4, 2011

English
On most you can say "References provided if needed" Normally size 12 font, it's standard for most.
April 4, 2011

English
It means what might affect you and just you in a big way might have "ripple effects" on everyone else. Like dropping a pebble into water. It affects the immediate space where the pebble landed in a big way (SPLASH), but the whole area around it is still affected, but...
April 4, 2011

Islam in India...Economic effects?
Thank you I have a bit more information now
April 4, 2011

Islam in India...Economic effects?
Thank you! For more specified information, I'm studying it from around 962-12th/13th century Ahhh AP work =[
April 4, 2011

Islam in India...Economic effects?
What economic effects did Islam have in India? I'm having a tough time finding any info for an ESP (Economy, Society, Politics) chart in my book. Any info is welcome and thanked :)
April 4, 2011

Psychology
I quote: "In a 1893 ruling, the U.S. Supreme Court declared that "children under the age of 7 years could not be guilty of felony, or punished for any capital offense, for within that age the child is conclusively presumed incapable of committing a crime." This ...
April 4, 2011

Psychology
These are not my words: "In the US, no. Children 6 yrs old can not be held responsible for their actions. They may be remanded, by the juvenile court to a psychiatric hospital, if they are found to be a threat to themselves or others, up to the age of 18 to 21 yrs old, ...
April 4, 2011

Psychology
In the context of criminal intent -- a 6 year old is considered an infant. Every state has a state penal code section that defines "infant" as it relates to criminal intent and the law. Here's a sample: California Penal Code Section 26 All persons are capable of ...
April 4, 2011

reading
Ahahaha Ms. Sue! Well, she gave you a paragraph. This isn't so hard. Just sit down and open up a dictionary :)
April 4, 2011

Physics helpp please!
A 8000-kg freight car rolls along rails with negligible friction. The car is brought to rest by a combination of two coiled springs as illustrated in the figure below. Both springs are described by Hooke's law and have spring constants with k1 = 1700 N/m and k2 = 3700 N/m...
April 3, 2011

AP Chemistry
A mixture of aluminum and zinc metal is used in 2 experiments described below: A- A 1.7 gram sample of the mixture is reacted with excess hydrochloric acid and the resulting hydrogen gas is collected over water. The reaction takes place at 750 mm Hg atmospheric pressure and ...
April 3, 2011

AP Chemistry
Okay, thank you so much! You really know your chemistry
April 3, 2011

AP Chemistry
Where does the Al(OH)3 come from and how do you know and how do you tell how much of the 2.70g of ppt is Al(OH)3 or Zn(NH3)4^+2?? Thanks
April 3, 2011

AP Chemistry
Im mainly confused on how you know what amount of aluminum or zinc is in the samples of the mixture
April 3, 2011

AP Chemistry
A mixture of aluminum and zinc metal is used in 2 experiments described below: A- A 1.7 gram sample of the mixture is reacted with excess hydrochloric acid and the resulting hydrogen gas is collected over water. The reaction takes place at 750 mm Hg atmospheric pressure and ...
April 3, 2011

Chemistry
Determine the final concentration of 20ml of 5M NaCl of solutions after 30ml of water has been added.
April 2, 2011

Physics
A person stands on a scale in an elevator. As the elevator starts, the scale has a constant reading of 600 N. As the elevator later stops, the scale reading is 396 N. Assume the magnitude of the acceleration is the same during starting and stopping. A)Determine the wieght of ...
April 1, 2011

english - Contrast Advertising
What are some companies that sell produtcs to the average consumer?
March 29, 2011

english
what does this quote mean "We'll have to tighten the belt a little bit and make due"
March 27, 2011

science
what r some good websites to look up river streams ponds lakes wetlands marsh and swaps plants and animals
March 23, 2011

math
try (20*4)+(20*3)
March 23, 2011

chemistry
will the pH be 11.20
March 22, 2011

chemistry
Can you give the steps for working this?
March 22, 2011

chemistry
a 275mL sample of vapor in equilibrium with 1-propylamine at 25C is removed and dissolved in 0.500L of H20. For 1-propalamine, Kb=3.72*10^-4 and the vapor pressure at 25C is 215 torr. (a)What should be the pH of the aqueous solution? (b) How many mg of NaOH dissolved in 0....
March 22, 2011

essay
What are some suggestion regarding should the driving age be raised to 18?
March 15, 2011

Physics
A certain piece of wire has a resistance of 250 ohms. if the wire is cut in three pieces and the cross sectional area of each piece is halved, what is the resistance of each piece?
March 8, 2011

geometry
Quadrilateral QRST has two pairs of congruent sides, but it is not a parallelogram. What figure is it? What further condition would it have to satisfy to be a parallelogram? A. The figure is a square. To be a parallelogram, it would have to have pairs of opposite congruent ...
March 6, 2011

geometry
Can you prove ABCD is a parallelogram based on the given information? Explain. Given: x = 5, y = 4 Prove: ABCD is a parallelogram. A. The figure is a square. To be a parallelogram, it would have to have pairs of opposite congruent sides, not just congruent sides. B. The figure...
March 6, 2011

calculus
How do I find the x values at which the tangents to the graphs f(x)=2x^2 and g(x)=x^3 have the same slope?
March 5, 2011

Chem- PLZ HELP!
Ok that looks wrong. 100g should be under solution for the mass, 18.02g/mol for the solvent of H2O and 85g/mol for the solute of NaNO3. I have to find mass of solute and solvent and the moles of solute and solvent. Pls help anyone!
March 3, 2011

Chem- PLZ HELP!
Consider 100g of 5.5% (mass) solution of NaNO3. Complete the following table, before calculating molarity, molality and mole fraction of NaNO3. Solute(NaNO3)|Solvent(H2O|Soln Mass(g) 100g Moles ---- RefInfo 85g/mol 18.02g/mol Density=1.00g/mol (This goes under "soln"...
March 3, 2011

english
what are some Controversia topics in regards to what is happening in the news currently?
March 3, 2011

SCience
Would you want someone looking through CLEAR GLASS at you? I think not. . .
March 2, 2011

Saint Louis University
He probably misread it to be "your school"
March 2, 2011

World History
I actually have a fairly good paragraph for the cultural aspect, but I'm not so sure where I should start for it economically. . . .
March 2, 2011

World History
How did a newfound sense of commercialism aid in the development of Europe as global power culturally and economically during the modern period?
March 2, 2011

chemistry
2.) Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is red, and C is yellow. In the reactions in which they participate, they are reduced to A-, B-, and C- ions respectively, all of which are colorless. When a solution of A is mixed with one ...
March 2, 2011

chemistry
2.) Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is red, and C is yellow. In the reactions in which they participate, they are reduced to A-, B-, and C- ions respectively, all of which are colorless. When a solution of A is mixed with one ...
March 2, 2011

calculus
The antiderivative of arctan(4t)dt by integration of parts.
February 28, 2011

physics
342m/s
February 26, 2011

english
What are some product that are essential to your quality of life besides cell phones and ipod
February 24, 2011

chemistry
The specific heat of the dilute NaCl solution formed during the neutralization of the HCl is about 2% less than the 4.184 J/k g assumed in the calculation for the molar heat of neutralization of the acid. How will this affect your final result for the heat of neutralization?
February 23, 2011

geometry
Width of label=height of can=8 cm Length of label=circumference of can=2*pi*radius or pi*diameter. Circumference=7*pi, this is the length of the label also.
February 21, 2011

Advertising-HELP
How about the KY ads? They're a little much.
February 21, 2011

Physics
A 20.0 g marble sliding to the right at 58.8 cm/s overtakes and collides elastically with a 10.0 g marble moving in the same direction at 14.7 cm/s. After the collision, the 10.0 g marble moves to the right at 73.5 cm/s. Find the velocity of the 20.0 g marble after the collision.
February 17, 2011

chemistry
The molar heat of solution of a substance is found to be +35.34 kJ/mol. The addition of 0.20 moles of this substance to 1.5 L water initially at 55. °C results in a temperature decrease. Assume the specific heat of the resulting solution to be equal to that of pure water. ...
February 16, 2011

math
This requires trig. The sine of an angle is the (opposite side)/(the hypotenuse.) So sin(38) = 36/x. x = 36/sin(38) You can type that in your calculator. Make sure your calculator is in degree mode.
February 16, 2011

chemistry
2.) A 48 g sample of water at 75 °C is mixed with 32 g water at 18 °C. Find the temperature of the mixture.
February 16, 2011

Survey of Math 140
sorry. you could try changing the 80 to 79 in the first part. I was debating with myself, which one to use.
February 16, 2011

Survey of Math 140
First calculate the number of days between March 8 and May 26. 24 days in March, 30 days in April, and 26 days in May. Add those together=80 days. 4000(1+.10)^(80/365)= 4084.44. This is how much you owe on May 26, before the $1300 payment. Then subtract 4084.44-1300. This is ...
February 16, 2011

Math
You may want to look up "unit circle" on google. There's an excellent picture with all the angles and their measures labeled.
February 16, 2011

Math
When you draw the angle in standard position, the ray will be in the second quadrant. Draw a line segment from the end of the ray down to the x-axis to make a triangle. The reference angle is pi/3. Along the horizontal part of the triangle write -1/2. Along the vertical part ...
February 16, 2011

Math
-1/2
February 16, 2011

Math
The reference angle for 8pi/3 is pi/3. 8pi/3 = 6pi/3 + 2pi/3 = 2pi+2pi/3 2pi/3 is in the second quadrant, where cosine is negative and cos(pi/3)=1/2 So the cos(8pi/3)= -cos(pi/3) = -1/2
February 16, 2011

Math
use the product rule: (first times der of second) + (second times der of first)
February 16, 2011

math
3*3+3=12
February 16, 2011

algebra
what's the question asking?
February 16, 2011

Algebra II-Please check my solution
You're right. I'm sorry. When I saw the missed step, I stopped looking at the rest of the work. You are correct.
February 16, 2011

Algebra II-Please check my solution
you're on the right track but when you tried to subtract the 2 eq you only subtracted the first term, but left the others' signs the same. It should look like this: 4x+6y=4 -4x+2y=28 now add the two eq together and redo the work you did before. if you have more ...
February 16, 2011

Math
The ground would be a height of zero. So set your equation equal to zero and solve. 0=-9.8t^2-10t+330 If you need more help, respond to this post.
February 16, 2011

Math
you can think of opposite as diagonally in this situation
February 15, 2011

Math
Opposite angle of a parallelogram are equal. Consecutive angles are supplementary. W must be opposite Y so it equals 65. Remember that supplementary angles means they add up to 180. You can figure out X and Z.
February 15, 2011

math- check me
no. First multiply both sides by 5y, giving you -3=-45y, then divide by -45 -3/-45 = y this reduces to 1/15
February 15, 2011

6th grade math
The only figure similar to a square is another square. If the side of the square is 5cm, then the area is length times width, which would be 5 * 5 since all sides of a square are equal. So what's 5 * 5?? And don't forget to write cm squared after.
February 15, 2011

algebra 2
First add 15 to both sides to get all terms on one side of the equal side and a zero on the other: a^2-8a+15=0 Then set up your parentheses. ( )( )=0 Now ask yourself, what two things multiplied together = a^2? a*a So put one of each in the first place in the parentheses. (a...
February 15, 2011

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