# Posts by elina

Total # Posts: 336

Calculus
Examine the continuity of f : R2 → R at (0; 0), where for all (x; y) ∈ R2, 1.)f(x; y) := {xy cos(1/x) if x ̸= 0; 0 if x = 0:} 2.)f(x; y) := {1 if x > 0 & 0 < y < x2; 0 otherwise:}

physics
1.will hall voltage be same for conductor and semiconductor in hall effect experiment? 2.can hall effect experiment be used for determining earth's magnetic field? 3.what is the importance of hall experiment? 4. can we use intrinsic semiconductor for hall experiment?

chemistry
what are the precautions taken while preparing tris(acetylacetonato)-manganese 3 from potassium permanganate and acetylacetone.

math
Adam used the 3 fractions to make a circle graph and colored each a different color. What fraction of a graph is not colored? Expalain your answer. The fractions are 2/5, 1/6, and 1/3.

math

math
Me don't know what this is

english
1. I stayed there for two weeks. 2. I stayed there two weeks. Are both grammatical? my sister needs help

math
can you help me on this problem 12*12

math
how much is a 1/2?

math
i have no idea

math
make a generalization about about dividens and quotients for whole numbers. 42/6=7 8/1=8 12/12=1

math
if 2 of the line segments of a polygon are parallel, what is the least number of sides it could be?

math
can a parallel rays form an angle explain

life orientation
All you have to do for this question is think of three jobs you would like in the future. #1 would be the most preferred and so on. After that, just provide two reasons why you would think about having that job. There is essentially no right or wrong answer to this question.

A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple? I don't know how to do this please help!

A color-blind woman marries a man who is not color-blind. All of their sons are color-blind, but none of their daughters are color-blind. Color-blindness is likely...? Answer choices: 1.the result of having too few chromosomes. 2.the result of having an extra chromosome. 3.a ...

Thanks, Ms. Sue!

The size of an organism is most likely determined by...? Answer choices: 1. its genes but not its environment 2. its environment but not its genes 3. its genes and its environment 4. neither its genes nor its environment MY ANSWER: 3. its genes and its environment

Health/PE
I am completing a project for PE/Health and I am stuck. Can you help me? The problem is below: Choose any eight that stretch different parts of your body. Be sure to balance your body by stretching opposite body parts. For example, if you stretch your chest, stretch your back ...

Science
Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object.

spelling
verb 1. give or apportion (something) to someone as a share or task. "equal time was allotted to each" synonyms: allocate to, assign to, apportion to, distribute to, issue to, grant to; earmark for, designate for, set aside for; hand out to/for, deal out to/for, dish...

Physics
y = Vi(t) + 1/2(a)(t^2) 400 = (0m/s)t + 1/2(9.8)(t^2) use the quadratic equation to solve for t

Exponential Growth and Decay
Another way to solve it is: amount = 12 (1/2)^(168) = 12(1/2)^2 = 3 millicuries

Exponential Growth and Decay
if the half life is 8 days, 1/2 is gone every 8 days. so after 8 days it is 1/2, 16 days is 1/4... so at 16 days it is 12 x 1/4 = 3 mc

math
Perimeter = The sum of all the sides (all the side lengths added together)

math --- 2 questions!
Correct, #5 is B.

math --- 2 questions!
#4 is correct. #5 is wrong.

Chris wants to know his BMI. He is five feet, six inches tall and weighs 130 pounds. What is Chris's BMI? Answer choices: 1. 18 2. 21 3. 28 4. 30 **MY ANSWER** Is it: 2. 21?

chemistry
Three steps are involved: steam changing to water at 100 C; water at 100 C cooling to 0 C; water at 0 C freezing to ice at 0 C. Steam changing to water: Heat of vaporization of water is 539.4 cal/g Heat = Heat of Vap. x mass = 539.4 cal/g x 75.0 g = 40,500 cal Cooling water ...

Thanks Ms. Sue

Excess body fat may cause... Answer choices: 1. diabetes, lack of stored energy, stroke, and heart disease. 2. lack of organ protection, osteoarthritis, and hyper tension. 3. sleep apnea, lack of organ protection, and liver disease. 4. stroke, infertility, sleep apnea, and ...

Science
A SOLID has a definite shape and a definite volume.

art history
What is the question?

Math - HELP
If the product of n and 17 is 340. What is the sum of n and 17?

Science - 6th grade: CHECK MY ASNWER
Consider a wetland ecosystem similar to the one shown in the image below. In this ecosystem are two species: a small fish species and a wading bird species that feeds on the small fish as its main source of food. Oxygen levels are a limiting factor.Suppose that the local ...

Math Help Qucik!
Cost of the bagels is 144 for \$80. When he sold 100 bagels, he has earned \$155 gross (which is his profit of \$75 + cost of \$80). Therefore 1 bagel is sold for \$1.55. He earns \$1.55n but since his costs are \$80, P=1.55n - 80

Science - 6th grade: CHECK MY ASNWER
I think it would be "limiting factor"

Science - 6th grade: CHECK MY ASNWER
If changing conditions lead to decreased oxygen levels in the stream, the carrying capacity of the stream for the trout will decrease. Oxygen level in water is therefore a(n) _____________ with respect to the number of trout that a particular stream can support. Is it "...

American History
You are not correct. In 1534, France's King Francis I authorized the navigator Jacques Cartier (1491-1557) to lead a voyage to the New World in order to seek gold and other riches, as well as a new route to Asia. Cartier's three expeditions along the St. Lawrence River...

Math help
You would use the same technique for the other ones, also.

Math help
For -7x-6y=-21 Simplifying -7x + -6y = -21 Solving -7x + -6y = -21 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6y' to each side of the equation. -7x + -6y + 6y = -21 + 6y Combine like terms: -6y + 6y = 0...

Physic II -----UD
This question essentially comes down to how many Coulombs of charge 50 electrons have (i.e., the sphere, the initial charge, etc., are irrelevant). So, knowing that one elementary charge is e = 1.6×10^-19 C and that 50 electrons will have a total charge of -50e, -50e &...

Ok, thank you

A biologist studying a desert ecosystem observes that the population of a lizard species increases following a particularly hot, dry period that causes a snake population to decline. What could the biologist hypothesize about the roles of these two species? A.The lizard preys ...

math
Jill is corrrect

get out 25 blocks then pull 9

Hitory
By 1890, United States factories produced _______ as those of Britain. A. half as much B. twice as much C. three-quarters as much D. one-quarter as much i think its B

American History
The 1978 Supreme Court decision in Bakke v. Regents of the University of California A. ruled in favor of affirmative action within specified limits. B. established the "red state-blue state" divide. C. ruled against the principle of affirmative action. D. established...

Biology
The main function of the stomach is to soften the food so that the food can pass through the body quickly. Is this True or False?

physics
if a 40.0-g stone is whirled horizontally on the end of a 0.60-mstring at a speed of 22m/s what is the tension in the string?

They Cay Walk to Moons The Hunger Games Series Travels with Charley A Year Down Yonder Charlotte's Web Harry Potter Series Percy Jackson Series Diary of a Wimpy Kids Series Holes

PHSICS
A laser beam in air is incident on a liquid at an angle of 40.0^\circ with respect to the normal. The laser beam's angle in the liquid is 25.0^\circ.What is the liquid's index of refraction? PLEASE HELP!!!

physic
A laser beam in air is incident on a liquid at an angle of 40.0^\circ with respect to the normal. The laser beam's angle in the liquid is 25.0^\circ.What is the liquid's index of refraction?

Health Care
do eating tomatoes cause kidney problems? and do they produce acid?

Health Care
sorry I think I accidentally posted this 2 times

Health Care
does eating tomatoes cause high blood pressure?

Health Care
does eating tomatoes cause high blood pressure?

Cooking
what is a simple recipe to bake brownies thanks:-D

Education
did she join that team, or something?

Education
That is all i could find

Education
Did Wendy Gardner, the kamloops resident support the team Subaru in Fiji? what did she do with that team?

Education
Oh, but I need the one who is from Montreal is Michelle Gregoire from Montreal?

Education
oh okay thanks

Education

Education
how about Diana Krall, that name has been popping alot as well

Education
I mean member of the order of Canada, I'm trying to find who is, but a whole bunch of names are popping up please help

Education
is Michelle Gregoire a Canadian jazz pianist from Montreal, who isa member of Canada

education
thanks

education
symphonic, and tenor

education
sorry, its just that at times I really don't know where the actual info is hiding, because there is a lot of difficult words in there which confuse me, but thanks Ms sue, I appreciate your help

education
oh sorry Ms Sue, I nver knew had knew you gave it to me already, but that's okay. I think i can figure it out, thanks

education
no, I mean Ben Heppner, not Ben Gulak and please don't five me the site Wikipedia,thanks

education
Canadian Ben Heppner's sorry, I forgot to mention his last name

education

Education
what is a good website which provides educational games to play and learn. I am trying to find some neat educational games for my little brothers. plese help:-)

Social Studies
thanks:-D

Social Studies
The states fought wars over differences of opinion and people commited horrible atrocities in the name of god. The reformation in England was a squabble over political power as much as struggle about religion and corruption in the church. during the 15th century England faced ...

Social Studies
The states fought wars over differences of opinion and people commited horrible atrocities in the name of god. The reformation in England was a squabble over political power as much as struggle about religion and corruption in the church. during the 15th century England faced ...

Social Studies
I replied again for the Socials thing, please do read it and post what you want to say about it here. Thanks:-)

Social Studies
I replied again for the Socials thing, please do read it and poat ehat you want to say about it here.

I wrote something for Europe down below, please do check:-)

please read what i have posted for social studies below, I need help.

Song Tunes
sorry, I meant popping:-\

Song Tunes
you can type in good song tunes on youtube, there will be a whole bunch pooping up on your screen.

literature
I think the 2nd one would be easy to do.

social studies
well then what I just posted at 7:32 isn't right, is it not part of the answer?

social studies
The reformation affected the modern view of politics and law. Martin Luther stabilized the German language.

social studies
So all together its like this: The states fought wars over differences of opinion and people commited horrible atrocities in the name of god. The reformation in England was a squabble over political power as much as struggle about religion and corruption in the church. during ...

social studies
in my book it says that in the 15th century many french businesses became clavinists, even though France was officially Catholic and Protestinism was against the law. The calvivist were hard working and made the French economy strong. is this right?

social studies
no I checked on this site, causes of the reformation. all the other words were hard for me to understand.

social studies
is this right? The states fought wars over differences of opinion and people commited horrible atrocities in the name of god. the reformation in england was a squabble over politicla power as mucha s struggle about religion and corruption in the church. during the 15th century...

social studies
thanks. but, i think this is right in europe didb't the smaller stated then get swallowed up by the larger ones?

social studies
I don't get it, I,ve already read thorugh my book 2wice and yet can not find a single thing. plese help

social studies
help pleeeeaaaaassssssee:-(

social studies
it does not say anything about europe

social studies
this is what it says : the reformation in england was a squabble over politicla power as mucha s struggle about religion and corruption in the church. during the 15th century england faced alot of civil wars, called wars of roses which caused great hardship and suffering. ...

social studies
explain the political and social results of the reformation? is this right? The protestants and the Catholics started to begin a war with eachother.? please help this does not look right

Socials
thanks:-D

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