Tuesday
October 21, 2014

Posts by Kate


Total # Posts: 1,699

Math
The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle. (a) Find the center of the circle. (b) Find the length of the radius of the circle. (Note that this is a distance.) Give the exact answer. Show work. (c) State the equation of the circle (in ...
June 24, 2009

Algebra
Thanks!
June 22, 2009

Algebra
How can algebra be used to solve this problem? The boy solved 10 problems correctly at 8 cents a problem for a total of 80 cents, and 16 incorrectly at the cost of 5 cents for a total of 80 cents. Therefore, neither the boy nor his father owed each other anything at the end of...
June 22, 2009

Algebra
Why would you say it was 4? This is what I thought to.
June 17, 2009

Algebra
Find the difference quotient: f(x+h)-f(x)/h for f(x) = 4x-9 and simplify.
June 17, 2009

Algebra
Now I will work on the distance and slope parts. Hopefully they will be correct to!
June 13, 2009

Algebra
oops I misplaced the decimal. So yea (6,0.5) is the solution I came up with.
June 13, 2009

Algebra
I think I figured it out. The answer can contain a fraction along with whole numbers. So i guess the mid point would be (6,.05) correct?
June 13, 2009

Algebra
(x1 + x2)/2, y1 + y2)/2 = 3+9/2 = 12/2 = 6 -1+2/2 = 1/2 = .05 This is what I got for the mid point. is this correct? I got 6 for the first set of numbers, and .05 for the second. How do I determine the mid point?
June 13, 2009

Algebra
Consider the points (3, –1) and (9, 2). (a) State the midpoint of the line segment with the given endpoints. (b) Find the distance between the points. Show some work. Give the exact answer (involving a radical), and also an approximation to three decimal places. (c) Find ...
June 13, 2009

college interview question
can i just say i tryed my best in everything i could so i dont regret it
June 8, 2009

college interview question
how will you answer this is i dont regret something Is there anything that you regret doing (or not doing) during high school?
June 8, 2009

ecology
I am not very good in science, and math. However, I do very well in english, writing, puncuation, and grammar. Here is my question. Do you believe humans can harvest forest resources in an enviromentally friendly way? Or, should national forest be left in their natural state ...
June 6, 2009

chemistry
In general, which reaction(forward, reverse, or neither) is favored if the value of K at a specified temperature is a. equal to 1? b. very small c. very large
June 5, 2009

chemistry
Which species are left out from the Keq expression, and why?
June 3, 2009

Normal Public High School Chemistry
Please assist me in answer this question please show me all the formulas used and the units and how to convert them if needed. Thank You. If the half-life of Ba (140, 56) is 12.75 dyas, how many atoms of (140, 56) Ba will be left after 9 weeks if there were initially 2.4 mol ...
June 3, 2009

sat scores
okay thanks
June 1, 2009

sat scores
What does a 1426 mean on the SAT as a score is it good bad or in between?
June 1, 2009

chemistry
unsaturated
May 29, 2009

chemistry
i think it is saturated
May 29, 2009

chemistry
so it is unsaturated
May 29, 2009

chemistry
If 20 g KCL is dissolved in 100g of water at 20 degrees C, is the solution unsaturated, saturated, or supersaturated?
May 29, 2009

chemistry help
411 grams
May 28, 2009

chemistry help
so what do i write as the answer
May 28, 2009

chemistry help
what mass of ammonium chloride can be added to 100g of water at 20 degrees C before the solution becomes saturated
May 28, 2009

chemistry
need help please???
May 27, 2009

chemistry
what mass of ammonium chloride can be added to 100g of water at 20 degrees C before the solution becomes saturated
May 27, 2009

Language arts
Like i.e. the lions were his favorite because they had beautiful manes and eyes and the giraffes were neglected because they had long necks and spotted fur.
May 25, 2009

Language arts
That sounds like a good start. You could say that maybe the zoo keeper had a favorite animal [to represent the "perfect" race] and that he neglected the other animals and wouldn't let them play with the other animals [those captured in concentration camps] ...
May 25, 2009

Statistics
For the gene pair that determines eye color, each gene trait may be one of two types: dominant brown (B) or recessive blue (b). A person possessing the gene pair BB or Bb has brown eyes, whereas the pair bb produces blue eyes. a) Suppose both parents of an individual are Bb. ...
May 25, 2009

looking for college scholarships
ookay
May 22, 2009

looking for college scholarships
Do you know of any that you applyed for?
May 22, 2009

looking for college scholarships
I am a junior in high school and I am in the process of trying to find scholarships that I can apply for right now at the moment. I am trying to start early as I can. Thanks!! If you can help me find scholarships and or grants. But i say absolutely no loans at all. :)
May 22, 2009

Science - Weather
Describe what would happen to the temperature on Earth if the amount of energy reflected back to space a) increased to 80% b) decreased to 5%
May 21, 2009

chemistry help
can you tell me what to write
May 20, 2009

chemistry help
What mass of ammonium chloride can be added to 100 g of water at 20 degrees C before the solution becomes saturated?
May 20, 2009

Question ! :)
I was thinking of things like Myspace and how putting your personal information out there can put your life in jeopardy. Also, if you save something to a hard drive on a computer open to other people, then anyone can see your information and do whatever they want with it. I&#...
May 19, 2009

Question ! :)
Why is it important to use caution before putting any personal information on a computer? (example(s) required) I think everyone knows the general idea to the answer to this question but this is my final exam question...so it has to be thorough. Any specific ideas for an ...
May 19, 2009

chemistry
a polymer is a molecule with repeating units usually joined with covalent chemical bonds. 2 examples of naturally occurring polymers are proteins & starches.
May 19, 2009

pre calc need help
Find the indicated function value. Do not use a calculator. tan 180 degrees
May 18, 2009

chemistry help asap
explain how paper chromatography separates the components in a solution
May 18, 2009

Math
Please explain ... What percent of 60 is 72? 35 is what percent of 20? Thank you!
May 17, 2009

physics
I have a few questions that i am not too sure how to figure out... 1- as a racing car zooms by you, its pitch decreases by 20%. If the speed of sound is 345m/s, how fast is the car travelling? 2-a person has a threshold of hearing of 5db. another person has a threshold of ...
May 17, 2009

12th grade- Trigonometry
Find the exact value of each expression Cos^-1(0) Tan^-1 sqrt(3)/3 Sin^-1(1) Since the expressions are capitalized, I'm not sure if I have to do anything different. Any help is appreciated.
May 14, 2009

Math
Please explain how I write this into a decimal and as a fraction in simplest form: 94.6% Thanks!
May 10, 2009

Maths
What are like terms
May 7, 2009

Maths
What are lke terms in formula
May 7, 2009

newletters ideas
okay great
April 28, 2009

newletters ideas
for all more like
April 28, 2009

newletters ideas
what is a great newletter topic that I can do on about school or classroom?
April 28, 2009

Math
How do I figure out what is greater 67.5% or 135/200 ? Thanks!
April 27, 2009

exponents
I need help with a few problems... (4^3 x 5^-2)(5^4 x 4^-5)/ 4^-3 x 5^3 and (2^x+2) - (2^x+5) = -7 please help!:)
April 5, 2009

physics
what can be said about the speed of an object if the net work done on that object is zero?
April 2, 2009

Math
Use synthetic division to show that x is a solution of the third-degree polynomial equation, and use the result to factor the polynomial completely. List all the real zeros of the function. x^3 - 28x - 48 = 0 x=2 I have no idea how to start this problem!!
April 1, 2009

Science - Biology
Please can someone help me! I've got to do a biology experiment to Investigate the relationship between reaction temperature and the effectiveness of action of the enzyme amylase on starch. I really dont know what it is all about pls someone help :)
March 29, 2009

Math:Evaluate Expression
2.4?
March 25, 2009

Math:Evaluate Expression
I understand now. I think our messages were overlapping. Thank you!
March 25, 2009

Math:Evaluate Expression
So, 12 divided by 3, minus 6.4?
March 25, 2009

Math:Evaluate Expression
I'm not sure I understand.
March 25, 2009

Math:Evaluate Expression
k/3 - 6.4 for k=12 Thank you!
March 25, 2009

Math:Evaluate Expressions
7.8?
March 25, 2009

Math:Evaluate Expressions
e/3-2x3 for e=41.4 Please explain. Thank you!
March 25, 2009

6th grade mah
How do I simplify 28% of 64?
March 24, 2009

english
What are some verbal techniques?
March 21, 2009

History
How did life in the British North American colonies contribute to the creation of a unique American identity? What are some examples of this?
March 18, 2009

English
what are written techniques?
March 17, 2009

British Lit
What do we learn about Sir Gawain's character from his speech in line 343-365?
March 14, 2009

Chem
Describe the 6 changes of state that substances might undergo in terms of appearance and energy transfer.
March 10, 2009

physics
At what distance would the repulsive force between two electrons have a magnitude of 8.50 N? I have no idea how to do this problem... can someone help me please... 3x10^-4/8.50?
March 9, 2009

Science
if every single person on this planet (about 5x10^9) could eat 1 pizza every second, how many years would it take them to eat 1 mole of pizza. 1 mole= 6.02x10^23
March 4, 2009

physics
A solid aluminum ingot weighs 88.0 N in air.What is its volume?The ingot is suspended from a rope and totally immersed in water. What is the tension in the rope (the apparent weight of the ingot in water)? To find the volume would i do density/specific gravity of aluminum?
March 1, 2009

language- swedish
i really would like to learn swedish. if anyone could help me, id really be greatful and in return, i could help with english or german. thankyou!
February 25, 2009

physics
25cm is the other operator
February 23, 2009

physics
You are designing a hydraulic lift for an automobile garage. It will consist of two oil-filled cylindrical pipes of different diameters. A worker pushes down on a piston at one end, raising the car on a platform at the other end. To handle a full range of jobs, you must be ...
February 23, 2009

Physics
Suppose you viewed a movie that was running backwards. You would see lots of odd things happen: streams would flow uphill, a diver would emerge upwards and go back to the diving board etc. If these backward moving events actually happened in nature, which principle or ...
February 20, 2009

Maths
How do I work out how much is left of something after a percent has been taken. For example: $50 has 25% taken of it how much of the $50 is left?
February 18, 2009

biology
Why are coral reefs generally limited in distribution to shallow marine waters?
February 15, 2009

Math
Yes, 20/24. Makes sense. Thank you!
February 12, 2009

Math
please explain to me how to figure out what fraction is greater. ex. 5/6 __ 1/8
February 12, 2009

math
unscamble the word: ripem , phase , and clamidd into math words
February 9, 2009

pre calc
okay thanks
February 9, 2009

pre calc
yes to change it to y=mx+b form
February 9, 2009

pre calc
how do you put these in y=mx+b form 3x+5y=8 16-5x=2y
February 9, 2009

english need help asap
3. d 4.b
February 9, 2009

english need help asap
* 3. Which phrase from Song of Myself, Number 52 is a simile? Which phrase from Song of Myself, Number 52 is a simile?   a. “He complains of my gab and my loitering.” b. “I shake my white locks at the runaway sun.” c. “If you want me again look ...
February 9, 2009

english
6. c
February 9, 2009

english
can you help with these 5. Free verse is best described as — Free verse is best described as —   a. poetry written without regular rhyme schemes and meter b. words and expressions not meant to be taken literally c. clues that hint at what will happen later on in...
February 9, 2009

english
1.a
February 9, 2009

english
1. c 2.c
February 9, 2009

algebra need help
Evaluate each expression. 3x^2-2x+1 if x=5 3a^2b^3 if a=2, b=-3
February 8, 2009

algebra
1. a number increased by 21 is 28. find the number 2. a number decreased by 12 is equal to 30. find the number. 3. 8 less than a number is 15. fid the number
February 7, 2009

science
what substance do you use to grow a virus in a lab
February 7, 2009

chemistry
they are not i have no idea where to start.
February 6, 2009

chemistry
Balance the following equations? Fe2O3 + 3H2 → 2Fe + 3H2O 4NH3 + 5O2  → 4NO + 6H2O 2Al + 6HAsO3  → 3H2 + 2Al(AsO3)3
February 6, 2009

stats
How would r change if researchers had recordered the proportions?
February 6, 2009

stats
Often the percent of an animal species in the wild that survive to breed again is lower following a successful breeding season. This is part of nature‘s self- regulation, tending to keep population stable. A study of merlins (small falcons) in northern Sweden observed the...
February 5, 2009

stats
Often the percent of an animal species in the wild that survive to breed again is lower following a successful breeding season. This is part of nature‘s self- regulation, tending to keep population stable. A study of merlins (small falcons) in northern Sweden observed the...
February 5, 2009

English
Mark Twain's skill as a humorist shows in Chapter XI. He uses a play on words in this chapter. What is it?
February 4, 2009

chemistry
Solid silicon and solid magnesium chloride forms when silison tetrachloride gas reacts with magnesium metal. Write a word equations and an ublanced formula equation. Include all of the appropriate notations.
February 4, 2009

algebra help
x^2+6x+5/x^2+8x+15 for what values is # underfined.
February 4, 2009

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