Questions Asked on
December 13, 2013

science
which of the following could be true of two different species that have a competitive relationship in the same ecosystem? A.one species preys on the other B.they relationship is mutually beneficial C.they share the same niche D.one species benefits, while
asked by Aaron 
Science
1. Which of the following traits is acquired A. the number of petals that grow in a plant's flowers B. the wing shape of a wild bird C. the ability of some gorillas to use sign language D. a cheetah's ability to run faster than any other animal 2. The
asked by homework help 
science
if you were looking for an example of a trace fossil, for which of the following might you search? a) footprints and trails b) a whole body preserved in rock c) dinosaur teeth d) a hardened mineral smaple
asked by victoria 
science
radioactive decay occurs when atoms a) lose mass b) join with atoms of another element c) break down to form atoms of another element d) are exposes to chemical weather
asked by victoria 
the parts of speech
1. In the following sentence, identify the part of speech of the italicized word. Thousands of years ago, fish were caught in nets and traps. ("and" is italicized) A. Preposition B. Conjunction C. Linking verb D. Pronoun B?
asked by Beatrice 
science
In an island ecosystem, fox and skunks both hunt mice and toads. Which of the following correctly describes some of these relationships? A.Skunks and mice have a competitive relationship B.Skunks and toads have a predatorprey relationship C.Fox and skunks
asked by Anonymous 
science
Which of the following best supports the idea that the melting of glaciers in Antarctica is a global environmental threat? A. The melting of glaciers can cause sea levels on Earth to fall. B. The melting of glaciers can change ecosystems in Antarctica. C.
asked by Anonymous 
science
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
asked by Aaron 
ENGLISH
The Call of the Wild is a story about a dog named Buck. Buck is a pampered dog who lives with a wealthy family in southern California. During the Gold Rush, Buck is captured, sold, and eventually shipped to Alaska to work as a sled dog. Along the way, Buck
asked by Beatrice 
science
A nonnative species of animal is introduced into a healthy ecosystem. In its new environment, this species has no predators, although it preys on several native animals in the ecosystem. Make a prediction about the biodiversity and health of this ecosystem
asked by Anonymous 
science
during the Devonian period,animals that could live on land began to evolve, these animals till spent part of their lives in the water. what were these animals called? a) trilobites b) reptiles c) amphibians d) dinosoars
asked by victoria 
science
during the Devonian period,animals that could live on land began to evolve, these animals till spent part of their lives in the water. what were these animals called? a) trilobites b) reptiles c) amphibians d) dinosoars
asked by victoria 
science
during the Devonian period,animals that could live on land began to evolve, these animals till spent part of their lives in the water. what were these animals called? a) trilobites b) reptiles c) amphibians d) dinosoars
asked by victoria 
science
What is true? A.biodiversity provides additional that raise the carrying capacity of an ecosystem B.biodiversity increases an ecosystem's ability ti withstand changes C.biodiversity makes an ecosystem more difficult to destroy D.biodiversity provides
asked by Aaron 
science
Earths atmosphere,oceans,and continents began to form during the first several hundred million years of a) The Precambrian time b) The Paleozoic era c) The Mesozoic era d) The Cenozoic era
asked by victoria 
Physicsurgent
A speeder is driving down the road at a constant 20 m/s, he passes a patrolman parked on the roadside. The patrolman waits 3 seconds, then pursues the speeder, accelerating at a constant 4.0 m/s. How long does it take the patrolman to catch the speeder?
asked by Kevin 
Log QuestionAdvanced Function
if you invested money into an account that pays 9% a compounded weekly, how many years would it take for your deposit to double? Using the formula: A=P(1+i)^n
asked by Jessie 
Algebra
In 1987 a recording artist sold 14,000 albums. In 1998 that same artist sold 4,683 albums. Find the rate of change in record sales from 1987 to 1998.
asked by Booty 2 Big 
physics
Suppose you are riding a stationary exercise bicycle, and the electronic meter indicates that the wheel is rotating at 9.1 rad/s and that you have been riding for a "distance" of 8.6 x 103m. The wheel has a radius of 0.45 m. For how many minutes have you
asked by jack 
algebra
At one time, the ratio of instate to outofstate tuition at Texas A&M University in college station, TX was about 3:11. About how much was the outofstate tuition if the instate tuition at the time was about $2400?
asked by genny 
statistic
Which of the following behave according to a power model? Select all the apply. 1.Finance 2. Population 3. area 4. Pricing 5. volume 6. bacteria 7. mass
asked by helen 
science
A salamander is a keystone species in a forest ecosystem with high biodiversity. This species migrates from woodland areas to a local stream to reproduce. If a road is built that cuts off the woodland areas from the stream, what effect will this have on
asked by Aaron 
world geography
In Iceland and the British Isles, the ocean creates a __________________ . a. mild temperatures c. hot and humid temperatures b. cold and wet temperatures d. hot and dry temperatures
asked by karen 
Health (Ms. Sue)
1. Compare the two types of pressure to become sexually active. A: The internal pressure one feels to become sexually active comes from within oneself, whereas the sources of external pressures to be sexually active include boyfriends or girlfriends, the
asked by Anonymous 
Operations Management
Calculate the minimum replenishment time to build 2500 Model A fountains given the following beginning inventories. Use the following information: (a) = weeks
asked by Zina Collins 
science
What determines the carrying capacity of a particular population by an ecosystem? A.keystone species B.pioneer species C.limiting factors D.renewable resource
asked by Aaron 
statistic
Which of the following behave according to a power model? Select all that apply.
asked by helen 
algebra
The United States postal service charges a "nonmachinable surcharge" for first class mail if the length of the envlope (parallel to the address) divided by the height of the envolope is less than 1.3 or more than 2.5. Charlene has an envelope with the
asked by genny 
Math
The larger angles of a rhombus are twice the smaller angle of the rhombus. If the shorter diagonal is 20, find the perimeter of the rhombus.
asked by Xinyi panggg 
the parts of speech
1. Choose the correct singular, third person, conjugation of the verb to be in the future perfect tense. A. You have been B. I will be C. She will have been D. They will have been B?
asked by Beatrice 
Math
On the June 12 interest payment date, the outstanding balance on Delta Nurseries’ revolving loan was $65,000. The floating interest rate on the loan stood at 9.25% on June 12, but rose to 9.5% on July 3, and to 10% in July 29. If Delta made principal
asked by Anonymous 
statistic
find the linear transformation model of log y^ = 0.6021x + 0.4771.
asked by helen 
Cladograms
How do scientists use protein sequences or DNA to construct cladograms? How do they find relationships between animals?
asked by Anonymous 
physics
A shuffleboard disc has a mass of 250g. The coefficient of friction between the disc and the floor is .60. A player pushes the disc applying a horizontal force of 5.0 N for .35 s. How much does the disc weight? What is the frictional force between the disc
asked by Nil 
Geometry
RS=3X+1,ST=2x2,And RT=64 Find The Vaule Of X ?
asked by Tranae 
Grammar
Please check this. 1. We are going to tell John what happened. John= indirect object 2. Are you going to explain to your parents why you arrived home late? (Is this sentence grammatically correct?) Parents=indirect object 3. She isn't going to call us
asked by Anonymous 
LAW
1. The impeachment exception to the exclusionary rules allows for illegally obtained evidence to be used: A. in serious felony cases. B. to show that a witness’ testimony may be false. C. to show the defendant possessed illegal contraband. D. in cases
asked by Amy 
Math
Let S be the number of perfect squares among the integers from 1 to 20136. Let Q be the number of perfect cubes among the same integers. What is the relationship between S and Q?
asked by Mary 
college Algebra
Solve the system, if possible. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter a general solution in terms of x, y, or z.) x + y = 18 y + z = 18 x − z = 0
asked by Dee 
physics
A shuffleboard disc has a mass of 250g. The coefficient of friction between the disc and the floor is .60. A player pushes the disc applying a horizontal force of 5.0 N for .35 s. How much does the disc weight? What is the frictional force between the disc
asked by Nil 
math
One company has $200,000 to distribute in dividends. There are 17,000 shares of preferred stock that earn dividends at $0.60 per share and 80,000 shares of common stock. How much per share does a common stockholder receive in dividends to the nearest cent?
asked by Debbie 
statistic
The data (1, 5), (3, 16), (5, 35), (7, 67), (9, 110) could be modeled as a linear relationship if (2 points) x is transformed to x2 y is transformed to y2 x is transformed to x3 y is transformed to y3
asked by helen 
Chemistry
Can someone please help me answer these questions? Is additional information other than what is given needed to solve? Thanks in advance. 1) Calculate the PH of a buffer containing 0.100 M propanoic acid, HC3H5O2 and .100 M NaC3H502 after the following
asked by Charles 
LAW
1. The rule that excludes additional evidence later obtained in an investigation that was the result of an initial illegal search is called the __________________ rule. A. fruit of the poisonous tree B. silver platter C. bad faith D. purged taint im
asked by Amy 
Chemistry
The relative humidity of air is equal to the ratio of the partial pressure of water in the air to the equilibrium vapor pressure of water at the same temperature. If the relative humidity of the air is 30.% and its temperature is 23°C, how many molecules
asked by Rad 
statistic
Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)
asked by helen 
statistic
The data (1, 5), (3, 16), (5, 35), (7, 67), (9, 110) could be modeled as a linear relationship if (2 points) x is transformed to x2 y is transformed to y2 x is transformed to x3 y is transformed to y3
asked by helen 
statistics
9. Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)
asked by helen 
math
Find the values of theta (0,2pi) that satisfy sin theta= square root 3 over 2 Solve 2costheta sinthetasintheta on (0, 2pi) please I really need help in knowing how to solve these questions. quite urgent. I don't understand how to do them at all.
asked by Temmick 
Math
A square has rotational symmetry because it can be rotated 180 degrees so that its image matches the original. Your friend says the angle of rotation is 180 divided by 4 = 45 degrees. What is wrong with this statement?
asked by Stephanie 
history
What 2 languages created the swahili language?
asked by Candy 
the parts of speech
1. Write the verb "see" in the present perfect tense. Use the pronoun "I" as the subject. A. I am seeing. B. I am seen. C. I have seen. D. I see. A? 2. Which kind of adjective is used most frequently in ordinary speech or writing? A. Proper B. Common C.
asked by Beatrice 
math
A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the
asked by Beebee 
Statistics
Scores on a certain exam are normally distributed with a mean of 78 and a variance of 25. What is the score obtained by the top 5% of the students? I do not understand the 5% part. What does the tail look like on the bellshaped graph?
asked by Julie 
science
hello, I am a grade six student. my question is: What are two types of ocean biome? i answered that in a drop quiz by neritic and oceanic. however , my teacher answered that by fresh water and salty water biomes. I am not convinced. The oceans are salty,
asked by Ramy E. 
Stats
A random sample of size 100 is drawn from a population with a standard deviation of 10. If only 5% of the time a sample mean greater than 20 is obtained, the mean of the population is ______.
asked by Matthew 
Math
An equilateral triangle is inscribed in a circle. Each side of the triangle has length x. What is the area of the circle? Please help
asked by Kizzy 
Science
What is the difference between a heterogenous and homogeneous mixture? And some examples for each heterogenous and homogeneous.
asked by Candy 
Statistics
For a population with a mean of µ=60 and standard deviation of Ợ=24, find the z=score corresponding to each of the following samples a. M=63 for sample of n=16 scores b. M=63 for sample of n=36 scores c. M=63 for sample of n=64 scores
asked by Lyndyc 
Science
This is an image of the ocean floor. Identify the list of letters in the answer choices that correctly identifies the following sea floor features in the order they are listed here: abyssal plain, continental shelf, submarine canyon, continental slope here
asked by Cassie 
statistic
Explain the transformation needed to convert the following data to a linear data set. {(1,0.98), (2,1.39), (3,1.71), (4, 1.98), (5,2.22), (6,2.43)
asked by helen 
MAA Global Science
A lump of ice falls from a jet plane as it tries to land at an airport. If the ice hits the ground with a vertical speed of 85m/s, what was the height of the plane when the ice fell off.
asked by Jacob 
Math
Arnold started getting an allowance at his tenth birthday. Each month he got three times as many dollars as he was years old. If he saved 25% of his allowance, how much money would he have saved by the day before his 18th birthday? I got 972 but the way I
asked by Mary 
college Algebra
Use matrix methods to solve the problem. To use space effectively, librarians like to fill shelves completely. One 105inch shelf can hold 3 dictionaries, 5 atlases, and 1 thesaurus; or 6 dictionaries and 2 thesauruses; or 2 dictionaries, 4 atlases, and 3
asked by Dee 
Politics
The typical Democratic voter A. supports limited government B. supports civil rights C. is a corporate CEO D. favors fundamentalist Christian social positions The answer is D
asked by Anthony 
math
if the price of an item triples the increase is what percent of the new price
asked by suraj 
Help math
The length of a certain rectangle is quadrupled and the width is tripled. What is the ratio of the area of the new enlarged rectangle to the original rectangle?
asked by Kizzy 
algebra
Solve the compound inequality. 3a513
asked by genny 
History
What were the 2 most important commodities from?
asked by Candy 
history
The five pillars of Islam include prayer, fasting, faith, alms and what else?
asked by Candy 
college Algebra
Solve the system, if possible. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter a general solution in terms of x, y, or z.) x + y + z = 7 2x + y + z = 14 x + 2y + 3z = 2
asked by Dee 
Math
Complete the square to find the vertex of each quadratic function. State the vertex. y=x^2+5x3 y= 5x^2+1/5x10 2x^2+8x2
asked by Jessy 
teachers aide
Please someone post the answers of Resources of Educating Young children with Diverse Abilities (PART3) so i can fix my answer because it's my last exam and i don't want get low mark.pleasei am so confused with few answers. Please post the answers!!!!!
asked by hir 
Math
Arnold started getting an allowance at his tenth birthday. Each month he got three times as many dollars as he was years old. If he saved 25% of his allowance, how much money would he have saved by the day before his 18th birthday
asked by Mary 
Biology
Why is feedback inhibition a useful thing for enzyme reactions in a cell? Are there biology tutors in this forum??
asked by Anonymous 
History
All are countries that were prominently Catholic in the 1500's and remain so today except? Spain France Italy Netherlands  From my research, I see that Spain and Italy's main religion is Catholic. So I assume those two are not it. But I am confused on
asked by J 
Math
What is the number of different squares which can be inscribed in a given equilateral triangle?
asked by Xinyi panggg 
Math
An equilateral triangle and a regular hexagon have equal perimeters. What is the area of the triangle, if the area of the hexagon is 120? I don't get it
asked by Kizzy 
algebra
Solve the compound inequality. 2
asked by genny 
Math
What is the number of different squares which can be inscribed in a given equilateral triangle?
asked by Kris 
History
What was Muhammad's goal for the entire Arabian peninsula?
asked by Candy 
vocab
the new employee had aplomb,he required
asked by hasan 
History
Islam mean submission and surrender Muslim mean one who surrenders and submits to the laws of God Am I correct?
asked by Candy 
Math
What is the number of different squares which can be inscribed in a given equilateral triangle?
asked by Alize 
Language Arts1 question
4. Identify the participle in the following sentence. The violinist memorized the challenging song for the recital. violinist memorized challenging recital
asked by Princess Anna 
Stastics
If the population standard deviation is Ợ=8, how large a sample is necessary to have a standard error that is a. Less than 4 points? b. Less than 2 points? c. Less than 1 point?
asked by Lyndyc 
General In need of advice
I am in need of blatant advice. I believe certain things. When I have to answer an open or multiple choice question for school that the answer they want me to put directly defies my beliefs and goes against my principles should I answer honestly what I
asked by Rainshine 
Biology
How many chromosomes are in a human blood cell? What term describes a picture of the human chromosomes arranged in pairs?
asked by David 
History
Ok the question that I am trying to find the answer to is Who established the Ottoman state? and i did a little research before i post here and I'm not sure if its Suleyman the magnificant or Osman Bey
asked by Candy 
algebra
The product of a number and 4 is at most 24.
asked by genny 
physicsimportant fast
A 1532.9 kg car traveling with a speed of 12.7 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 50.4 m?
asked by jack 
algebra
1
asked by genny 
History Martin Luther King
Need help with an introduction and thesis to start my paper. "The aspect of the life and work of Dr. King thorough knowledge of his legacy."
asked by ameme 
science
why it is important to take care of the eyes and go for a regular checkup?
asked by shana 
algebra
The Mexican tetra requires a water temp between 68 and 77 degrees,inclusive. A auarium is heated 8 degrees so that a tetra can live in it. What temp could the water have been before?
asked by genny 
math
I need help writing 57/18 as a mixed number. Can somebody show me how to do it .Because I'm not understanding what to do.
asked by cora evans 
statistics
what is the variance of 18, 16, 12, 2, 11
asked by donnie 
american history
The 1844  1845 was a watershed year because it saw the war with mexico begin. which if the following was not a longrange cause of the conflict?
asked by Anonymous 
Politics
The least likely contributor to Democratic candidates would be. A. National Organization of Women B. United Auto Workerd C. National Association of Manufacturers D. Sierra Club The Answer is D
asked by Anthony 
statistic
will you help with my statistic class
asked by Patricia 
History
what wasa the only crusader that was successful in capturing Jerusalem for the christians?
asked by Candy 
math
ineed to get anaverage of 0.89 by adding any 4 numbers
asked by Anonymous 
algebra
7.3=>x/2
asked by genny 
statistic
Credit Solutions Corporation 5454 Ruffin Road, Suite 200 San Diego, CA 92123
asked by helen 
English
I still have a few doubts. Thank you very much. 1) When I go to a party, I generally wear clothes which are smarter than the ones I wear for school. 2) I want to be original and on fashion (is it possible?) 3) What do you think of/about this coat? Are both
asked by Frank 
history current events
What is Iran's position on stateless people? Also, are there any links or resources where I can find information about this?
asked by maya 
English
[ms Yardley is an art dealer. The man is going to hand a picture by Picasso.] 'Fifty thousand Euros, Ms Yardley,' the man says. 'I want fifty thousand Euros to get it.'  What does the last sentence mean? Would you
asked by rfvv 
teachers aide
19.which one of the following choices represents a correct response in the game Synonym? a.hard/soft b.like/dislike c.road/street d.seventeen/eighteen
asked by hir 
chemistry
Will tea bag contains caffeine? What is the bad effects if one drink too much tea bags everyday?
asked by raven 
Biology
Which one has no place with the others? glormerulus secretion filtration increased blood presure
asked by Anon123 
Business math
Use the formula or a calculator application to find the monthly payment on a home mortgage of $282.335 at 4.656% interest for 20 years.
asked by Anonymous 
English 10
I have to a narrative argument about the human nature in the book Lord of The Flies. Any ideas what examples of human nature in the book i can use? please help this is urgent. Please!!
asked by Emma 
maths
2x+8=18&2x=1812
asked by mirage 
math
solve for each of the variables: 3(x+3)/5+y/2/=2z=1 x/3+5y2/4+z=0 z2(y+1)/33z=2
asked by Anonymous 
math
How would you perimeter of a room that is 4 1/3 yard by 5 2/3, can you explain that to me by showing how you did it.
asked by cora evans 
English
1. Pierre Valmy  How do you pronounce 'Valmy'? Do you pronounce the 'l' sound? 2. England are playing France at football this evening.  is this sentence grammatical?
asked by rfvv 
college Algebra
Use matrix methods to solve the problem. 120,000 gallons of fuel are to be divided between two airlines. Triple A Airways requires three times as much as Unity Air. How much fuel should be allocated to Triple A? ______ gal
asked by Dee 
Math
When 14 is divided by 5, the remainder is 4. When 14 is divided by a positive integer n, the remainder is 2. For how many different values of n is this possible. Is listing it out the only way?
asked by Mary 
science very urgent help?
Susan has heard that taking an overthecounter ‘energy’ pill, which contains as much caffeine as a strong cup of coffee, makes people feel alert and ‘speedy’. She wonders if taking this pill will make a difference to the reaction times of people
asked by sam