dj

This page lists questions and answers that were posted by visitors named dj.

Questions

The following questions were asked by visitors named dj.

1/4x-1/6y=-2 -1/6x+1/5y=4 solve for x and y its suppose to be x equals 12 and y equals 30 need steps thanks

i need a image of a diskette with this sizes: size 8 size 5 1/4 size 3 1/2 (maybe they are size inches) i search and search and search but i cant find them please i will pass this on monday thx! Jiskha rock!

5x=7+4y 20x-16y=28 how many solutions are there for the system of equations? Infinitely many solutions No solution. two solutions or three solutions?

Use the rule of Logarithm, then solve for x Log 2x+1 - log (x+5)=0 x=4 *I know x equals for can you explain how?

Find the vertex of y = −3(x + 1)2 + 5 Find the vertex of y = −2t2 + 12t − 23

measurement of an average classroom door is closest to 1 meter

Which of the following is the best opening sentence for a business letter that you want to sound fairly informal? A. I am in receipt of your order of February 10. B. This letter is to make you cognizant of our receipt of your order. C. Your order of Febru...

Many years ago, a cruise liner sank in the middle of the Pacific Ocean. The survivors luckily landed on a remote desert island. There was enough food for the 220 people to last three weeks. Six days later a rescue ship appeared, unluckily this ship also s...

Simplify each of the following, if possible. Write your answers in exponential form, a^b 3^4*3^7*3^6 2^80+3*2^80

What is the province of Charlottetown Canada?

what are ten careers in home economics

what is the quality of the disclosures for guarantees and commitments for nortel networks corporation? and could these disclosures be improved?

what is the LCM of 8,and 19

how to work out the answer to 0.08 divided by 0.7, it dividing decimals

what are strategies that a concerned parent can us to help improve his or her child's reading and writing skills

underline complete subject and complete pedicate to my sentences. The boys and girls studied different kinds of measures.

in triangle abc angle b is 3 times angle a and angle c is 8degrees less than 6 times angle a?

How many {\rm NO}_{2} molecules would form as products if the reaction had a percent yield of 75\%?

what is the molecular mass of a solute if a solution containing 150 g of that solute and 1.0 kg of water has a boiling point of 102.0 degree c? (Kb= 0.512 degree C/m)

the number of my hunderds plus the number of my thousandsin 3. the number of my tens is 7 times the number of my hundreds. the number of my ones is 3 times the number of my thousands. allmy digits are differnt. what number am i ?

I have a surface area? my base is 18m, height is 4m and wisdth is 14m - do not understand the equation given by teacher of: top bottom, both sides and front and back to get answer - this does not make sense to me - please explain

what is the change in heat when 23.5g water vapor at 100C condenses to liquid 18.50C

1/3 1 /4 . 035 13%greatest to least

A boat that travels at a speed of 6.75 m/s in still water is to go directly across a river and back, as shown in the figure below. The current flows at 0.50m/s At what angles must the boat be steered? How long does it take to make the round-trip? (Assume...

15 x w + 51 =105 +51 ?

When the concentration of CH3Br and NaOH are both 0.150M, the rate of the reaction is 0.0020M/S. (a) What is the rate of the reaction if the concetration of CH3Br is doubled? _______________M/s (b) What is the rate of the reaction if the concentration of...

The first term of a geometric sequence is -2 and the common ratio is 3. What is the 12th term of the sequence?

The lateral area of the right regular triangular prism is 18 cm^2.Find the total surface area.give your answer in decimal form rounded of to 2 decimal places

A sample has a mean of M = 73 and a standard deviation of s = 5

a scale drawing has a scale of 1cm:3m explain how the scale can be used to find the actual distance between objects in the drawing

Alex bought 9 tickets for $30. Adult tickets cost $4 and children's cost $2. How many children's tickets did he purchase?

anonymous did you ever get all the correct answers?

there were 35 student in gym class.if they were separated in to teams of 7, how many people would be on each team. what is the number model you used to sove this? please use a drawing to show your work.[4oa2]

In a move to provide additional sales for U.S. car manufacturers, the White House announced the purchase of 17,600 new fuel-efficient vehicles for the federal fleet. Suppose the new fleet, which includes 2,500 hybrid sedans, will cost $295 million. As an...

irony quick check

10. The broadest classification category listed below is: Class Family Genus Order

11. The kingdom Plantae is housed in the Domain? Eubacteria Archaea Eukarya both A and B

In taxonomy, a group at any level of organization is referred to as a: taxon binomial nomenclature niche

When scientists use a ______ they can be certain they are all discussing the same organism. common name scientific name misnomer taxon

All of the biotic and abiotic factors in a given area would be called: population community ecosystem troposphere

14. In a species scientific name, which term is capitalized? neither species name genus name both terms

15. Panthera leo (lion) and ________ tigris (tiger) belong to the same genus. Panthera Leo Tigris none of these

. Binomial nomenclature means ______. two-name naming three-name naming common name taxonomy

. Structures that are the same but have different functions (forearms of humans, humpback whales, bats, cheetahs) are referred to as: dichotomous keys vestigial structures homologous structures analogous structures

In an evolutionary classification scheme, species within one genus should: are all consumers have identical genes. not be similar in appearance. be more similar to each other than they are to other species.

What kingdom do humans fall into? Animalia Plantae Fungi Protista

The kingdoms Protista, Plantae, Fungi, and Animalia contain only: all are multicellular photosynthetic organisms eukaryotes prokaryotes

What is the mnemonic for remembering the taxonomic groups for organizing species? Kings play chess on fuzzy green stools Kut the rope and love the bird Kids play chess on dark red stools none of these

Scientists classify living things in order to do all of the following things EXCEPT: to catalogue to standardize to determine evolutionary relationships all of the above

. _________ is a diagram that uses pairs of contrasting description statements to narrow a path toward naming an organism. phylogenetic tree dichotomous key food web cladogram

Protists are an example of an organism in the Domain Archabacteria. true false

The arrangement of organisms into orderly groups based on their similarities is called: classification phylogeny homeostasis evolution

During a dive to the bottom of the Pacific Ocean, biologists discover a new organism. The organism grows in colonies and is made up of cells that have nuclei and organelles. In which domain would you place this organism? Eukarya Archaea Eubacteria Plantae

The mechanism for evolution is? symbiosis natural selection homeostasis fossil evidence

. Over time, the variations that are within the genes of members of a population that give an advantage? become more common in the population become less common in the population cause the population to become extinct cause the population to remain at the...

. The evolution of Darwin’s finches (different beak shapes occurring on different Galapagos Islands) is an example of: speciation vestigial structures stabilizing selection artificial selection

39. Speciation can be caused by: Isolation due to a natural disaster like tornado Mating at different times of the year Eating different types of food all of these

_____ is the movement of individuals out of an area niche biome immigration emigration

____ the role an organism plays in its habitat; what an organisms does in its habitat. habitat niche population community

_____ is the range of chemical and physical conditions that must be maintained for a population of a particular species to survive and reproduce. range of tolerance zone of intolerance optimum range zone of physiological stress

what is the name of the scientist who wrote " on the Origin of species" and presented the idea of evolution and natural selection? Rachel Carson Charles Barkley Marie Curie Charles Darwin

_____ describes an organism's suitability for its environment. heredity fitness ancestry phylogeny

Which taxonomic category, shown above, contains the greatest number of different organisms? species kingdom order phylum

Which two organisms, in the chart above, are most closely related to each other? humpback whale and whale shark corn and spider monkey spider monkey and humpback whale humpback whale and corn

what is it that is actually changing over millions of years within a population when we consider evolution? the genetic makeup life expectancy age ability to resist disease coloration of the population

Organisms with the most favorable traits survive long enough to reproduce fertile offspring and therefore, those favorable traits become more frequent in the species population over long periods of time Describe what process? homeostasis taxonomy phylogen...

All the members of a given species (all the zebras) in a given area at a given time are called? community ecosystem habitat population

All the members of ALL the species (zebras, lion, elephants, etc) in a given area are called? community population carrying capacity habitat

3. Which of the following is a factor that can limit carrying capacity? available nutrients (food, water) available mates competition all of the above

1. A healthy ecosystem is defined by having a lot of biological diversity, or biodiversity. true false

. Several environmental factors can also alter biodiversity like? increased predation introduction of a new species severe weather all of the above

Manythings decrease the biodiversity of a ecosystem such as? lack of space/food lack of mates change in temperatures all of the above

. Whether caused by natural forces or human actions, ecosystems are always changing and these disturbances affect biodiversity. true false

Healthy ecosystems are in homeostasis true false

Any environmental change can alter an ecosystem. true false

_____ the role an organism plays in its habitat; what an organisms does in its habitat niche population biodiversity commensalism

We study ________ of species and not individual organisms, because, just like people, different individuals can withstand different conditions. species communities populations biospheres

______ is a narrow range of conditions within the range of tolerance in which the population is most successful. zone of physiological stress zone of intolerance range of tolerance optimum range

We don’t see the organisms in the zone of physiological stress, instead what we see is? organisms dying increases in populations decreases in a particular type of plant species immigration of invasive species

_____ are an inherited characteristic (trait)--physical, chemical, or behavioral--that helps an organism survive and reproduce in its environment. fitness adaptations mechanism homeostasis

______ is the mechanism for change in a population over time (evolution) competition adaptation fitness natural selection

The ability of an organism to survive & reproduce is called ____ fitness adaptation mimicry migration

When a population overshoots the carry capacity: birth rates will be higher than death rates death rates will begin to surpass birth rates immigration and emigration will be equal none of these

A _____ is anything an organism needs to survive, grow and reproduce. abiotic factor limiting factor resource fitness

______ is competition between individuals of two different species competing for the same resource. Interspecific Intraspecific fitness adaptation

Divide. (2x^3 – x^2 – 24x + 12) ÷ (2x – 1) A. x^2 – 1 B. x^2 – 12 C. 2x – 1

Solve the system of equations. y = 2x² – 3 y = 3x – 1 A. no solution B. (–one-half, 5), (2, –start fraction 5 over 2 end fraction) C. (–one-half, –start fraction 5 over 2 end fraction), (2, 5) D. (one-half, start fraction 5 over 2 end fraction), (2, 5)

Question 2 of 10 How many real number solutions are there to the equation 0 = –3x² + x – 4? A. 0 B. 1 C. 2 D. 3

Answers

The following answers were posted by visitors named dj.

what helps some single-celled organisms move or feed themselves? It has to be a five letter word ending in a. I've looked all through my text book and can't find it!! Thanks!

what if i was solving for h? what would i do?

In the second problem why do I put a 1 before 2^80?

thats why the answer not 3^2^280 I am not understanding the answer you don't multiply 3*2=6^80

ohh.. now i've got it thank you

make sure to convert millimolar to molar

$1,000,000 and $800,000 respectively

Part 1 is A Part 2 is C none of the above

The pH of a juice drink is 3.8. Find the concentration of hydrogen ions in the drink. A) 3.8 B) 10^-3.8 C) 1.6×10^4 D) 1.6×10^-4

that would be c

Tall and skinny..I found out the base of the triangle is 2.

If the theoretical yield of a reaction is 0.173g and the actual yield is 0.165g , what is the percent yield?

n a physics lab experiment, a spring clamped to the table shoots a 21 g ball horizontally. When the spring is compressed 20 cm , the ball travels horizontally 5.2 m and lands on the floor 1.5 m below the point at which it left the spring.

where did the 2 come from ?

hey steve just answer the question for the poor kid! im wondering my self! can some help ME?

To keep the drink cold, the ice must last as long as possible. Thus, it should have a small surface exposed. That is where the heat transfer takes place. So, you need a high volume relative to its surface.

questionare you from conections academy? if so go to the web mail and webmail your teacher for more help

To keep the drink cold, the ice must last as long as possible. Thus, it should have a small surface exposed. That is where the heat transfer takes place. So, you need a high volume relative to its surface.

write the missing improper fraction in each box

you would have a whole

Suppose humans significantly increased their harvest of catfish, causing a decline in the catfish population. Predict what effect this would most likely have on the population of muskrats. Explain your reasoning.

yup super helpful 100 present

same 5 out of 5

those are the choice for the question

can you see if it is d mrs sue

do 8/1 then do 4/3 then you get 8/1 and now you only have 8 now and that's on period UwU

do 3/1 the you get 3 then do 6/5 then you will get 1 then do 3/1 you will only get 3 there and that's on period

i know all the answers

I agree to some of the stuff they teach you like evolution is not even proven it a theory infact scientist are split between many theories and school teachers are telling us it's true like it's going to help us make money in the real world . But some stuf...

plus half of he stuff i learned in the past month I probably forgot no matter how hard i studied so i think in the future I'm not going to remember the economy of south Asia . I'm just going to look it up when i want to go to south Asia.

??? is right 100

this is not roleplay stop it man

True or False: Protests in Central Asia and the Caucasus, such as the protests in Kyrgyzstan, have led to a stronger and greater democracy. * 1 point True False

is it true or false look at the question again

After countries in some regions gained independence, they wrote new constitutions. But, the countries do not actually protect the rights that are listed in the new Constitution. This results in citizens having ___________ freedom. * 1 point unlimited litt...

What religion was practiced mostly by Russian Slavs? * 1 point Catholicism Christianity Islam

Putin put the energy industry of Russia under government control. Was this a step towards or back from free enterprise? * 1 point a step toward a step back

This group of people makes up about 80 percent of Russian citizens? * 1 point Commmunists Bolsheviks Slavs

In the early 1600s, nobles elected a tsar named Michael Romanov. During his reign, Russia increased interactions with Western Europe and explorers traveled across Siberia. Peter the Great westernized Russia and conquered new lands. Catherine the Great exp...

The rise of communism affected the Soviet Union in many ways (most were negative). Which of the following is NOT one of the effects. * 1 point The government spent a lot of money on military and weapons. Farmers had to give their grain to the government T...

True or False: The European part of Russia is most heavily populated. * 1 point True False

Choose the word that best fills in the blank: Some areas of Russia are more heavily populated than others because many areas have limited vegetation, and the _____________ makes construction of roads and buildings difficult? * 1 point government permafros...

The areas of Russia that have the highest population rates have the best climates for what? * 1 point agriculture vacationing anthropology

The countries of Azerbaijan and Kazakhstan,located in Central Asia and the Caucasus, have the largest proven reserves of what? * 1 point gold oil gemstones

True or False: I have completed my Unit 3 Study Guide and turned it in to my Social Studies teacher. * 1 point True False

i have done it so true or false

Order the rational numbers from least to greatest: * 1 point Captionless Image -10 , 2 , -0.5 , 5/16 -10 , -0.5 , 5/16 , 2 5/16 , -0/5 , 2 , -10 0.5 , 5/16 , 2 . -10

Skip to resources Question Temperature Temperature (°F) 50 42 31 62 51 55 45 Once a day for seven days, Melanie recorded the temperature (in °F) of a stream near her home. Which box plot correctly shows Melanie’s data? Responses A B C D Skip to navigation

Which data set represents the histogram? Responses A {66, 66, 71, 78, 57, 53, 69, 68, 70, 60, 59, 75, 75, 82, 77, 53}{66, 66, 71, 78, 57, 53, 69, 68, 70, 60, 59, 75, 75, 82, 77, 53} B {66, 66, 71, 78, 57, 53, 69, 68, 70, 60, 59, 55, 75, 82, 77, 53}{66, 66...

10 of 1610 of 16 Items 06:02:36 Skip to resources Question According to the chart, how many households have at least three cars? Responses A 82,00082,000 B 8282 C 74,00074,000 D 7474 E 303,000303,000

11 of 1611 of 16 Items 06:22:01 Skip to resources Question Which box-and-whisker plot matches the data? 4, 3, 4, 5, 2, 5, 6, 12, 8, 9, 7 Responses A B C D

Which question is a statistical question? Responses A How old is my cat?How old is my cat? B How old are the students in my school?How old are the students in my school? C How old is my neighbor?How old is my neighbor? D How old am I?

Rainfall Data Month Rainfall (cm) January 4.3 February 3.9 March 4.0 April 5.0 May 2.9 June 3.2 July 1.9 August 2.0 September 3.7 October 3.8 November 4.2 December 4.9 What is the mode of the data in the rainfall table? Responses A 3.653.65 B 3.13.1 C no...

mr bain shut it he helped you and this is what he gets shut up bro

3 of 103 of 10 Items 37:36 Skip to resources Question For the bar graph, what is the total population surveyed? Responses A 30,300 B 3,030,000 C 3,0303,030 D 303 E 303,000 Skip to navigation

Which question is a statistical question? Responses A How do I rate the taste of ice-cream on a scale of 1-10?How do I rate the taste of ice-cream on a scale of 1-10? B Which brand of ice cream is preferred by the people shopping at a grocery store?Which...

{20, 30, 40, 50, 60, 70, 80} The mean of this set of numbers is Responses A 80 B 50 C 55 D 20 E 60

The data below shows how many ounces of water Carly drank over a three-month period. Which of the following histograms accurately represents this data? Water in ounces 0-16 17-33 34-50 51-67 68+ Number of days 3 21 32 30 5 Responses A B C D Skip to naviga...

7 of 107 of 10 Items 15:13 Skip to resources Question Consider this data set: {49, 50, 45, 23, 35, 66, 34, 74, 54, 50} Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Res...

Which question is a statistical question? Responses A Does my father or my mother like the ice-cream from the grocery store better?Does my father or my mother like the ice-cream from the grocery store better? B How do I rate the taste of ice-cream on a sc...

Which question is a statistical question? Responses A Does my father or my mother like the ice-cream from the grocery store better?Does my father or my mother like the ice-cream from the grocery store better? B How do I rate the taste of ice-cream on a sc...

Rainfall Data Month Rainfall (cm) January 4.3 February 3.9 March 4.0 April 5.0 May 2.9 June 3.2 July 1.9 August 2.0 September 3.7 October 3.8 November 4.2 December 4.9 What is the mode of the data in the rainfall table? Responses A 3.13.1 B 3.653.65 C no...

2 of 202 of 20 Items 10:34 Question Why did military leaders overthrow the governments of Chile and Argentina in the 1970s? Responses A They feared their governments were moving toward communism.They feared their governments were moving toward communism....

How does literacy rate affect the standard of living in Latin America? Responses A High literacy rates lead to a low standard of living.High literacy rates lead to a low standard of living. B A literacy rate helps the people to become bilingual.A literacy...

If you wanted to visit a city in which Portuguese is the primary language, which number would represent your destination? Responses A 11 B 22 C 33 D 4

5 of 205 of 20 Items 32:02 Question Which type of economic activity dominates the Amazon rainforest? Responses A farmingfarming B fishingfishing C logginglogging D ranching

What are the similarities between Portugal and Spain's motivations for exploration of the "New World"? Responses A Neither country sought to introduce Christianity to the natives.Neither country sought to introduce Christianity to the natives. B Both coun...

Which is a cultural characteristics of Brazil? Responses A It has the largest Catholic population in the world.It has the largest Catholic population in the world. B Quechua is the official language.Quechua is the official language. C The majority of its...

Which natural resource & economic industriy primarily led Venezuala's economy for many years? Responses A oiloil B coppercopper C coalcoal D timber

What conclusion can you draw from the fact that Spanish and Portuguese are the most commonly spoken languages in Latin America? Responses A Latin Americans have chosen to speak Romance languages.Latin Americans have chosen to speak Romance languages. B Sp...

How is Paraguay different from Chile, Argentina and Uruguay? Responses A Most of its descendants are mestizos.Most of its descendants are mestizos. B Most descend from Italian immigrants.Most descend from Italian immigrants. C Spanish is the main language...

How did the development of agriculture change the lives of early South American peoples? Responses A More groups moved near the coasts.More groups moved near the coasts. B Groups started to settle in one place.Groups started to settle in one place. C Many...

Where could one have found the most colonies with the greatest Spanish influence in the mid-1500s? Responses A 11 B 22 C 55 D 6

What had weakened the Incan empire before the Spanish conquered it? Responses A drought and faminedrought and famine B an earthquakean earthquake C disease and wardisease and war D a volcanic eruption

Which has contributed to a reduction of income inequality in Argentina, Bolivia, and Peru? Responses A a decrease in trade with other countriesa decrease in trade with other countries B an increase in education and people with university degreesan increas...

After independence, most South American countries Responses A were dominated by wealthy landowners.were dominated by wealthy landowners. B extended voting rights to everyone. extended voting rights to everyone. C wanted communist societies with command ec...

How did the Spanish conquest affect culture in the Americas? Responses A The Spanish, American Indian, and African cultures blended over time.The Spanish, American Indian, and African cultures blended over time. B The Spanish destroyed Aztec and Incan cul...

Use the following excerpt to answer the question. “The continuation of authority in one individual has frequently been the undoing of democratic governments. Repeated elections are essential in popular systems, because nothing is so dangerous as to permit...

Use the following excerpt to answer the question. “The continuation of authority in one individual has frequently been the undoing of democratic governments. Repeated elections are essential in popular systems, because nothing is so dangerous as to permit...

Which of the following events eventually led to Brazil’s independence? Responses A Getúlio Vargas' overthrow of the governmentGetúlio Vargas' overthrow of the government B the liberation of enslaved Afro-Braziliansthe liberation of enslaved Afro-Brazilian...

Within a century of the conquests in Latin America by Spain and Portugal, the native population had declined considerably from battle and disease. To offset this loss of labor, Spain and Portugal Responses A improved living conditions for the native popul...