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astronomy
Using the densities below, find what percentage of the Earth's mass is contained in its core. If Earth's core were adjusted in radius so that the core contained forty percent of the mass, by what factor would the radius of the Earth change compared with its actual radius? (...

School Supplies Help!!!
Ok I have a huge binder for my core classes (ss, sci, math, and eng) and I need creative ways to organzie it. I also have a elevtive binder (art, facs, computer and skool's newspaper, speech,gym - just for papers) I also need creative ideas to organzie it. Is there any sites ...

Physics
In a serious accident,a neclear plant's reactor vessal cracks,and all of the cooling water drains out.Although nuclear fission stops,readioactive decay continues to heat the reactor's 2.5 x 10^5 kg uranium core at a rate of 120 Mega-Watts.Once the core reaches its melting ...

math
4. Gregory teaches martial arts. He charges a one-time processing fee of $5.00 and the cost of the classes is shown below. Let x represent the number of classes and y represent the cost of classes. Based on this information, what will it cost to take 10 classes? Cost of ...

math
Greg teaches martial arts. He charges a one time processing fee of $5.00 and the cost of classes are shown below. let x represent the number of classes and y represent the cost of the classes. Based on the information, what will it cost to take 10 classes? (x) classes 1 2 3 4...

Math
Practice Dividing by 7 For each dance style , the Step - Up Dance School offers the same number of classes each day . Use the table to solve each problem . (1 week=7 days) Show your work. Step-Up Dance School Dance Style. Number of Classes Each Week Ballet : 70 Salsa: 56 Tango...

Science
Which layers of the Earth can only be studied by indirect means? ( Layers being inner core, outer core, mantle, And Crust) inner core, outer core, mantle Yes, if you personally visited any but the crust you would be destroyed by the heat and pressure. Right I knew that. i just...

All core classes.
What were some 80's icons? I have a project that's on the most important political and environmental events in the U.S during the 80's. I want to make some titles, for each subject (i had an assignment for almost each class, excluding my elective and p.e), and I'm not sure ...

science
In a serious accident, nuclear power plants reactor vessel cracks and all of the cooling water drains out. Although nuclear fission stops, radioactive decay continues to heat the reactor's 2.5× 10 to the 5 power kg uranium core at rate of 120 Mega-Watts. Once the core reaches...

math
raquel teaches dance classes each evening starting at5:380p.m. she teaches 3 40 minute classes and 2 50 minute classes.she has a 10 minute break between classes.make a table to find the time her last class ends. a.)9:10 b.)9:20 c.)9:30 d.)9:50

earths core
what are a few (1 or two) reasons why the core cant be of lonestones?

History
Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid hierarchy of the following classes: serfs, nobles, clergy, merchants, monarchs, artisans, and knights I've been looking over the internet and couldn't ...

History
Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid hierarchy of the following classes: serfs, nobles, clergy, merchants, monarchs, artisans, and knights I've been looking over the internet and couldn't ...

Science
How does the inner core differ from the outer core?

Science
What are thease layers of earth made of? Crust Lower mantel outer core inner Core. and asthenospher and lithosphere

Math
Top ten scores on a quiz in two classes are listed below Class A 100,100,100,90,95,85,92,98,92,88 class B 100,100,98,95,95,96,95,92,81,88 which statement is true concerning the data a. the mode is the same for both classes b. the range is the same for both classes c. the mean ...

Science 3
What is characteristic of a main sequence star? A.It has a mass less than the Sun’s B.It has rapid rotation and a strong stellar wind C.Nuclear fusion in the core varies due to the amount of gravitational contraction that occurs and which heavy elements are produced D.The ...

math
For every girl taking classes at a Martin martial arts school there are 3 boys who are taking classes at the school. If there a 236 students taking the classes write and solve a proportion to predict the number of boys taking classes at the school?

Math
For every girl taking classes at the martial arts school, there are 3 boys who are taking classes at the school. If there are 236 students taking classes, write and solve a proportion to predict the number of boys taking classes at the school.

math
For every girl taking classes at the martial arts school, there are 3 boys who are taking classes at the school. If there are 236 students taking classes, write and solve a proportion to predict the number of boys taking classes at the school.

earth
classify each of the folowing layers as liquid,rigid,or solid but able to flow slowly:lithosphere,asthenosphere,lower mantle,outer core,inner core.

math
For every boy taking classes at the music school , there are 3 girls who are taking classes at the school . if there are 128 students taking classes , write and solve a proportion to predict the number of girls taking classes at the school

Math
for every girl taking classes at the school, there are 3 boys who are taking classes at the school. If there are 236 students taking classes, write and solve a propotion to predict the number of boys taking classes at the school.

Philosophy
The following argument appeared in the draft of a bill before the Louisiana State Legislature in 2001: Whereas, the writings of Charles Darwin, the father of evolution, promoted the justification of racism, and his books On the Origin of Species and The Descent of Man ...

Philosophy
The following argument appeared in the draft of a bill before the Louisiana State Legislature in 2001: Whereas, the writings of Charles Darwin, the father of evolution, promoted the justification of racism, and his books On the Origin of Species and The Descent of Man ...

pre-algebra
a pottery studio gives three-hour and five-hour classes for $41.00 an hour. The studio collects 6,437 for 41 classes. How many 3 hour classes and how many five hour classes were paid for?

Math
If the number of male students and female students in each of 3 classes is equal, and the average number of males in each class is 30, What is the total number of students in all 3 classes? *My answer is 180, but I'm not sure.

Math
14. When the teachers were talking one day in the workroom one math teacher said she had 2^7 students in all her classes and the pe teacher said he has 6^3 students in all his classes. How many more students does the pe teacher have than the math? A.6 B.47 C.88 D.135 C. 15. 64...

science
Very hot, liquid iron and sulfur are found 1,800 miles deep in the earth in the _____.? a) inner core b) mantle c) outer core d) crust Just need to know if my answer or right or wrong. Thanks! :) c

science
Very hot, liquid iron and sulfur are found 1,800 miles deep in the earth in the _____.? a) inner core b) mantle c) outer core d) crust Just need to know if my answer or right or wrong. Thanks! :) c

mah
holly spend 7 and 3/5 hours in school each day. her lunch period is 1/2 hour long, and she spends a total of 7/10 hour switching rooms between classes.the rest of her day is spent in 6 classes that are all same length. how long is each class?

mah
holly spend 7 and 3/5 hours in school each day. her lunch period is 1/2 hour long, and she spends a total of 7/10 hour switching rooms between classes.the rest of her day is spent in 6 classes that are all same length. how long is each class?

Grades
I need some help on calculating my current high school GPA. So far, I've completed 8 classes per year (I'm a sophomore, soon to be junior), making that 16 classes total. I also took two middle school classes that count for high school credit. Here's the rest of the stats: Of ...

Science
The density of the sun's core is about 160 g/cm. The density of the earth's core is about 13.0 g/cm. About how many times denser is the sun's core than Earth's?

core values
I need some example of personal core values?

Science
1) Which of the following statements about the sun's structure is true? The sun has a solid surface The sun has an interior and an atmosphere The sun's interior is similar to the Earth's; it has a core, mantle, and crust*** The sun's outermost layer is called the radiation ...

Shalee ^~^
1) Which of the following statements about the sun's structure is true? The sun has a solid surface The sun has an interior and an atmosphere The sun's interior is similar to the Earth's; it has a core, mantle, and crust*** The sun's outermost layer is called the radiation ...

Common Core State Exam
I need some tips on dong the best I could do on the common core state exam. Please do the best you can to give tips. And if you know a website that will help me study, please do give it to me. Thank you for all you support and help :)

algebra.. HELP ME!!
Mai spends 7 3/4 hours in school each day. Her lunch period is 1/2 hour long, and she spends a total 7/10 hour switching rooms between classes. The rest of her day is spent in 6 classes that are all the same length. How long is each class?

Physic
Geophysicist have estimated that the temperature at the center of the earth’s core is 5000⁰C (or more), while the temperature of the sun’s core is about 15 million K. Express both of these temperature in Fahrenheit degrees.

Statistics
In creating a frequency distribution table, which of the following statement is not a basic rule to follow? a) Choose classes that cover the smallest and largest values. b) Make certain that each item can go into only one class. c) As a general rule, use between 10 and 15 ...

social studies
men from higher social classes in------ cultures tend to have low levels of conformity, more self-direction, and have greater intellectual flexibility than did men from lower social classes A) collectivist B) individualist C) interdependent D) all My choice is C but Im a ...

physical education
should p.e. classes be separated into all boy/ all girl?

Computer Programming
Professor Merlin has asked you to help him. He has 100 total students in his four classes but he is not sure that all of them took his last exam. He wants to average the grades for his last exam in all four sections of his medieval literature course and then determine how many...

Writing
How does online classes and traditional education classes contain structure?

English
How does online classes and traditional classes contain the same material?

check grammar
Core quality are qualities that belong to a person‘s nature and that characterize a person strengths. Sometimes when a core quality are a bit too much, they can dominate other qualities and so they become a pitfall instead of strength. Core quality have me learned by ...

Algebra 2
I'm doing linear programming and I'm having trouble with this one problem. The Backstage Dance Studio director must plan for and operate many different classes, 7 days a week, at all hours of the day. Saturday is very important day for younger students, and each Saturday class...

Math
I'm doing linear programming and I'm having trouble with this one problem. The Backstage Dance Studio director must plan for and operate many different classes, 7 days a week, at all hours of the day. Saturday is very important day for younger students, and each Saturday class...

Statistics
A planner wants to determine the percentage of students who will attend summer classes. She surveys 32 students and finds that 12 will return for summer classes. Construct a 90% confidence interval estimate for the proportion of students who will return for summer classes.

Chemistry
Specify the number of core and valence electrons for Ti^2+ Can I just pretend that this ion is calcium and calculate the valence electrons that way? So 18 core, 2 valence?

AP classes
I am taking an AP class for the first time. How does this differ from regular classes and what should I expect. (11th grade)

Chemistry
Which of the subshells in the electron configuration of Hf behave as core orbitals Check all that apply 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d

Math
Ms. Henderson’s 5 art classes are turning in their final projects for the year. The table shows the numbers and type of project turned in during her first 4 classes. Part A Write the ratio of paintings to sculptures for each class in simplest terms. Class A(8 to 12): 2:3, ...

hardware
What percentage of the address space of IP4 do the network classes of A, B, and C represent? ( Hint: Think of the classes in terms of power of 2.)

Biology
19. Which is NOT a general characteristic of plants? a. use oxygen to make usable energy b. primary producers c. have specialized cells d. cell walls composed of cellulose I think it might be either A or B... 20. Which of the following are characteristics of all animals? a. ...

Biology
19. Which is NOT a general characteristic of plants? a. use oxygen to make usable energy b. primary producers c. have specialized cells d. cell walls composed of cellulose I think it might be either A or B... 20. Which of the following are characteristics of all animals? a. ...

French
Also, how would I say, "The classes are over for the weekend"? Les classes ont fini pour le week-end. ?

geography
the inner core is solid, why is this so when high temperatures tend to liqiudify matter? High pressures at the core tend to solidify, despite the higher temperatures there.

Math
There are two main classes of individuals who can affect the outcome of an experiment: Those who could influence the results Those who evaluate the results When all the individuals in either one of these classes are blinded, an experiment is said to be: A) Single blind (I'm ...

Algebra 2
A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. The authors of the study wanted to know if the two groups of teachers had ...

science
what physical components do the sun and earth have in common ? a) core and mantle b) core and atmosphere c) crust and atmosphere d) mantle and crust

English Expression
What time do you usually get up in the morning? I get up around 6 a.m. When do you eat breakfast? I eat breakfast at 7 a.m. What do you usually eat for breakfast? I eat rice, kimchi, and broth. What time do you go to school? I go to school around 8 a.m. What time does school ...

History - Help
Regarding peripheral countries or regions, all of the following are true EXCEPT: A. they are all dependent on core countries for capital. B. the term peripheral is not necessarily synonymous with poverty. C. most of the impoverished countries are in Africa. D. there is a ...

math
An elementary school is offering 3 language classes: one in Spanish, one in French, and one in German. These classes are open to any of the 93 students in the school. There are 35 in the Spanish class, 31 in the French class, and 22 in the German class. There are 12 students ...

english- Please revise
An important factor to consider in choosing your classes is how employers will view the skills you have developed during your college experience. How will you select classes to develop the skills employers expect? What other activities might you engage in during your college ...

science
Classify these layers of the Earth as liquid, solid, or solid but able to flow slowly: crust, lithosphere, asthenosphere, outer core, inner core. Crust=solid, Lithosphere= solid but able to flow slowly, Asthenosphere=liquid, Outer core= solid but able to flow slowly, Inner ...

English 10
My aspiration to become a famous astronomer propels me to exceed in all of my classes. Identify the appositive or appositive phrase. - to exceed - aspiration - to become a famous astronomer - classes I am thinking its B. but not 100% sure...

English Expression
She has six classes every day. Each class is 40 minutes. Between classes there are a ten-minute break. ---------------------------------- Would you check the sentences? Which one is incorrect?

Math
For every girl taking classes at the martial arts school, there are 3 boys who are taking classes at the school. If there are 236 students taking classes, write and solve a porportion to predict the number of boys taking the classes at the school. So #girls:#boys = 1:3 or #...

Extra Credit Projects
I'm doing some extra credit projects for all of my classes (maybe gym idk). Is there any extra credit ideas I can do for the following classes: English, Math (something small), Fine Art, Social Studies, and Gym. Science I got it covered (doing 2 huge extra credit projects). I ...

Physic
The composite bar BCD in the figure is composed of an inner aluminum cylindrical core of length 2L=2 m and radius R=1 cm, and a sleeve of steel of length L=1 m and thickness R=1 cm surrounding the aluminum core in the CD section of the bar. The bar is fixed at B and at D, and ...

Spanish
What are schools and organizations in silicon valley doing to foster growth for hispanic and latino students? a. Offering math programs in the summer b. Offering english classes year round C.offering tutoring classes in science during the weekends d. offering writing classes ...

Algebra 2
A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. The authors of the study wanted to know if the two groups of teachers had ...

French
How would you say, "Roger likes not having classes"? Roger aime.... pas avoir?.... les classes. ?

Statistics
If 50 classes of 20 students are randomly selected, what is the probability that 10 classes have no left handed students? I know it is binomial distribution but i do not get it

English
Which pronoun? That is the month many of the classes put on its, their own plays. Easpch of the classes chooses the play they, it will put on.

IT 210
Generate an object-oriented design for a system that keeps tracks of your CD and DVD collection. · Identify each of the classes, associated data, and operations for the classes. · Generate the pseudocode for each of the classes as demonstrated on p. 251. · Draw a GUI that ...

science/mars core
when it explains the mars core is made of iron, sulfur, and "light elements" what does light elements mean or possibly made of? please help me!!!!!

Chemistry
I don't understand what valence electrons and core electrons are. Ex: Se = 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 What makes 4s2 and 4p4 valence electrons and the rest core

Chemistry
What are the names of all the classes of substances that conduct electricity?

Engineering
Can someone please help me with this problem? In order to reduce the material cost, an engineer decides to use a hybrid beam instead of an all-carbon fiber beam. Both beams have the same overall dimensions with rectangular cross-sections. The hybrid beam contains carbon fibers...

MATH
tHERE ARE 4 FIFTH GRADE CLASSES IN A SCHOOL. EACH CLASS Has 24 STUDENTS. fOR EACH GYM PERIOD, TWO FIFTH GRADE CLASSES TAKE GYM TOGETHER. tHERE ARE 10 GYM PERIODS IN ALL DURING SCHOOL WEEK. wHAT INFORMATION IS NOR NEEDED TO FIGURE OUT HOW MANY TOTAL STUDENTS TAKE A GYM PERIOD ...

Core World History
What are 5 events for the rise and fall of the empires all around the world from prehistory to A.D. 1600?

Elements of Structures MIT 2.02
In this problem The composite beam AB, of length L=2m, is free at A (x=0) and fixed at B (x=L) and is composed of a round cylindrical core of constant radius R0=1cm bonded inside a sleeve of thickness R0 (outer radius 2R0=2cm). The beam is loaded, as indicated, by a downward ...

Math
tom is scheduling his classes for next quarter. he wants to take three classes, and has the following options: spanish at 9, 10, or 11; music at 9 or 11; math at 10 or 12. list possible schedules he would choose

it 210 computer programming
I need to generate an object oriented design for a system that keeps track of a DVD and CD collection. Identify each of the classes, associated data, and operations of the classes. Create the pseudo code for each of the classes and draw a GUI that will create the objects and ...

math
A statistic professor plans classes so carefully that the lengths of her classes are uniformly distributed between 46.0 and 56.0 minutes. Find the probability that a given class period time is less than 51.75 minutes

Finance
Ken Braden estimates that taking some classes would result in earning $3,500 more a year for the next 30 years. Based on an annual interest rate of 5 percent, calculate the future value of these classes.

Sociology
Can someone help me with my three questions and let me know if I answered them correctly Thanks 1 According to world systems analysis, the U.S., Japan, and Germany are all core nations. I chose (true)=A A) True B) False 2) Which population group represents the largest minority...

Math
An elementary school is offering 3 language classes: one in Spanish, one in French, and one in German. These classes are open to any of the 107 students in the school. There are 42 in the Spanish class, 32 in the French class, and 23 in the German class. There are 14 students ...

math
a class has 18 classes with 35 students in each class. in order to reduce the class size to 30,how many new classes must be formed?

math
For every 3 classes in the intermediate grades, there are 5 teachers. How many teachers are there for 15 classes.

English Expressions
1. The following is the bar graph showing the number of boys and girls of special activity classes in Mina's school. 2. Survey the number of students according to each grade, the number of teachers, and the number of classes of your school. 1) Decide the contents which will be...

Science
Hello. (= I can't find the answer to this question: What are the five major classes of Chordates? The following question is: Using the list made in the previous question, number the Chordate Classes in the order in which each of them evolved.

Science
Does the Earth and moon have large molten core or only 1 of them does? I think the Earth only has large molten core

Physics
Light travels in a line of optical fiber by total internal reflection between a core of refractive index 1.48 and a cladding 1.46 refractive index. The critical angle for total internal reflection to occur inside the core of the fiber is ... 80.6º 48.8º 43.2º 42.5º 24.4º ...

statistics
A STAT 200 instructor is interested in whether there is any variation in the final exam grades between her two classes Data collected from the two classes are as follows: Her null hypothesis and alternative hypothesis are: (a) Determine the test statistic. Show all work; ...

8th grade math
At Maryland Middle School, there are 9 mathematics classes. If two mathematics classes are selected for a school competition, what is the number of possible outcomes?

math
At Maryland Middle School, there are 9 mathematics classes. If two mathematics classes are selected for a school competition, what is the number of possible outcomes?

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