# Posts by Angel

Total # Posts: 1,143

math
Molly drove a total of 390 miles to get to her destination in the mountains. She stopped twice, getting 14 gallons of gas and snacks, spending \$34 at the first stop and \$28 at the second stop. In the mountains, she drove 164 miles visiting scenic places. Before she returned ...

Chemistry
Analysis of a sample of an organic compound showed it contains 39.9%carbon,6.9%hydrogen and 53.2%oxygen. a)calculate the empirical formula b)if the relative molecular mass is 60,what is the molecular formula of the compound.(C=12,H=1,O=16)

Chemistry
An organic compound on analysis gives the following percentage composition of elements present. Carbon 61.85%,hydrogen 10.50% and oxygen 27.65%.determine the empirical formula of the compound.(C=12,H=1,O=16)

Math
Thank you so much! You're a big help! :)

Math
Thank you! What about this one? 3x + 4(x-6)-3(x-7) A.4x - 45 B.4x - 3 C.10x - 3 D.10x + 45

Math
I really need help solving this! For questions 6-7, simplify the expression. 6. -6 - 7(c + 10)(1 point) A. 64 - 7c B. -76 - 7c C. 4 - 13c D. -16 - 13c I don't know which to choose, I need help solving this!

algebra 1
The answer is B. I don't remember which unit this was in but I think its B.

Spanish
A Inca

Physical Education 1-10
385 divide by 32 multiplied by 18 can you get the answer

ELA
What are 2 metaphors on freedom? Can some one help ASAP HMU KIK:

language
The point of view most suitable for memoirs is the______________ point of view.

Chemistry
A solution contains 0.50M Nh3 and 1.50 M Nh4cl. What is the maximum concentration of mg2+ that can be present in such a solution without precipitating Mg(oh)2?

chem
i cant believe these arent answered yet. im sorry. 1. 366K 2. 1710 mL 3. 26.2 thats what i have so far

chemistry
1. How many grams of calcium chloride (CaCl2) are there in 600.0 mL of an aqueous solution that has a concentration of 0.450 M CaCl2? 2. The conjugate base of HS- is: 3. What mass of calcium chloride, CaCl2, is needed to prepare 3.65 L of a 1.75 M solution? The molar mass of ...

chem
i don't know which numbers to plug in where. this is what i was given in my intro to chem class and i am totally lost.

chem
The molar mass of hydrogen fluoride, HF, is 20.0 g/mol. If 17.0 grams of HF are dissolved in water to give 200.0 mL of solution, what is the molarity of this solution?

chemistry
is it 1.13

chemistry
can anyone help with this problem please..... Potassium chlorate decomposes according to the following equation: 2KClO3 (s) → 2KCl (s) + 3O2 (g). If a 3.00 g sample of KClO3 is decomposed and the oxygen is collected at 24.0 °C and 0.991 atm, what volume of oxygen gas...

math

Language arts.
Don't you think ppl need help why are you fooling around @jazmine

math
Sally says any two segment on her fifths strip are the same as 2/5.do you agree with her

English
Need help with a thesis. Hamlet who is young and emotionally unstable should not attempt to avenge his father's death based on what a ghost has to say. Is this good? - the question is "Something is rotten in the state of Demmark" Develop Thesis based from the ...

college writting two
Could this be a thesis lower minimum wages are detrimental for disabled and college students.

physics help
The distance between the midponts of two metal balls.P and Q,respectively of masses 55 kg and 70 kg is 80 cm calculate the gravitational force that P exerts on Q answer F=Gm1m2/r^2 F=(6,67x10^-11)(55kg)(70kg)/(80cm) F=4.01x10^-11..... Is it correct is correct (b)give only the ...

Physics
A 61 - kg ice skater coasts with no effort for 61 m until she stops. If the coefficient of kinetic friction between her skates and the ice is μk=0.10, how fast was she moving at the start of her coast?

English
The answer is "Give him an alibi in court"

physics
a rocket launched off a cliff is represented by the equation h(t)= -16t^2+100t+140. when will this rocket reach 200 feet? I tried to factor it, i'm confused.

Language arts
Thanks

Language Arts
Really a little more respect ur a teacher

Language Arts
Really a little more respect our a teacher

Algebra
Simplify the expression. Assume that all variables represent positive numbers. Write your answer without using negative exponents. (343x^-6y/8y^-8x^6)^-2/3

thesis help
Need help finding thesis When Bullying Turns Deadly: Can It Be Stopped? In the past four weeks, four teenagers killed themselves after being harassed by schoolmates. Technology is quickly changing how kids bully one another. Here are some ways to stop the problem. I think the ...

College Chemistry
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.59 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?

College Chemistry
A 43.70 g sample of a substance is initially at 24.7 °C. After absorbing 1757 J of heat, the temperature of the substance is 120.5 °C. What is the specific heat (c) of the substance?

thesis
Where is the thesis in this please help Bullies can be anywhere, but there's no place they show up more than in schools, and no time more than in September. Once the academic year starts, the complicated social hierarchy of a campus — popular kids, nerdy kids, ADHD ...

Statistics
sorry. its 62.8 for the mean

Statistics
The distribution of heights of women aged 20 to 29 is approximately normal with a mean of 2.8 inches and standard deviation of 2.8 inches. The height (+/- 0.1 inch) of the middle 99.7% falls between a low of ?? inches and a high of ?? inches. Please help on how I set this up ...

history
what motivated the founding father to use the "we the people" in the preamble of the U.S. constitution "

Community psychology
Can some on think of a public meeting with board of directors that are like involved for a community I need to like a website do to need to write down the public meeting .

english
Revise the following paragraph, improving it without changing its overall meaning. Pay particular attention to the sentence structure and parts of speech. Imagine a time when there was only one little store. To shop in for a whole town. The only selection there was to choose ...

Math
Right

Math
So it is a

Chemistry
The formula for magnesium carbonate is MgCO3. What is the charge of the cation in Ag2CO3? Would it be +1 or +2 because there are two of Ag?

Living Waters private school
Can I choose Human resource or safety officer when am doing maths literacy, economic,business and tourism

Life orientation
The media do not tell us what to think.they tell us what to think about.how is this so.by using three forms of media

Economics
They are payments provided by the government mostly in developed countries like u.s to the unemployed or I'll persons who can't help themselves in a way or other

Algebra
I seriously need help on this math problem. I have tried to work it out myself but the answer is not coming out right. Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -8x2 + 3x + 7.

MATH
if alpha and beta are zeroes of the polynomial x2-5x+6,then find the polynomial whose zeroes are root 3 and -root 3

algebra
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -8x2 + 7x + 6.

statics
Walleye is a common game fish. Adult walleye have a length with a mean of 44 cm and a standard deviation of 4 cm and the distribution of lengths is approximately Normal. What fraction of walleye are longer than 52 cm in length?

math
I am five digit number greater than 40,000 but less than 70,000.My ones digit is more than my ten thousands digit.All my other digit are the same.The sum of my gigit is 19.What number am i?

Mathematics
what are the 3 geometric means between 4 and 1/4?

Maths
what is 5 times 4 divided by 2

Math
Anna is making a 20-metre long strips of \$50 notes. Estimate the total value of the \$50 notes Anna will use.

Math
How many people can fit in a 1.5 tonne elevator? Please show working out.

electronic
find the intrinsic concentration, ni for silicon at 300k.given that Eg =1.12V Ao=5.85×10^5 q=1.6×10^-19C K=1.38×10^23J/K. using ni= Ao T^3/2 exp(-q/KT . Eg/2).

Dkdoaksldalska

Science
Which term refers to the process by which individuals that are better adapted to their environment are more likely to survive and reproduce?

theory of evolution
This is for the whole Practice Test if you're a connections academy student or just randomly have these questions for some homework. These are in order, I'm not following what anonymous posted. 1.B 2.C 3.A (@bobpursley you were so wrong, anonymous was correct) 4.D 5.C ...

Math
She has 2 7/8 cups of flour, she will put 3/4 cup of flour in each cake

algebra need help
The highest temperature ever recorded in a certain town was 88 Fahrenheit . the lowest temperature ever recorded there was -24 Fahrenheit what is the difference between the two temperatures.

science
Jenny is doing an experiment to see if students in her class like apples or oranges best. She will offer each student an apple or an orange. Then she will record how many students took each kind of fruit.What is a valid prediction Jenny could make about the results of her ...

Algebra
Perform the indicated operation and if possible simplify x/5 * y/z

World view
Is it possible to reconcile the popular beliefs listed with the claims Jesus made? Why or why not?

World view
What is the prophecy in Genesis 3:15 known as and what does it mean?

Math
Phil bought a block of cheese in the shape of a rectangular prism measuring 8 inches by 4 inches by 2 inches. He cut four pieces of cheese off the block each measuring 2 inches by 3 inches by inch . how much of the block of cheese is left . IS the answer 40in3

Math
Ok me saying "No idea" is just a metaphor for me saying "I do know, its just that I need a little more help understanding". I am smart its just that this unit is hard and no matter how much I study, I doesn't help. I get that it's annoying but ...

Math
Which explains why the sequence 64, 4, 1/4,... is arithmetic or geometric? A. The sequence is geometric because it decreases by a factor of 1/16. B. The sequence is arithmetic because it decreases by a factor of 1/16. C. The sequence is geometric because it decreases by a ...

Math
Thank you Ms. Sue 16.5

Math
Is this correct- 5 squared + 8 divided by 2 = 29

math
sorry i clicked on the wrong name

math
thank you Ms Sue I need to know if I did this correctly: (-2) + (10+2) Is the answer 14

math
The low temperature in one city was -4 degrees F. The low temperature in another city was 8 degrees F. Write an inequality to compare the temperature. HELP!

Social Studies
Never mind, The answer is B. Europe

Social Studies

Social Studies
Until the 1700s, the mayan calendar was much more accurate than any calendar used in... A. the United States B. Europe C. China D. the Middle East

math

Math
is this statement always, sometimes, or never true: the absolute value of a positive integer is a negative integer. i think never am i correct

math
Steve, in (a)the (y) is a misprint and (x)= -2 Thank you for the help

math
if x=-2 and y=2, which of the following is false: (a) (x) is greater than 1 (y) (b) (x) = (y) (c) (y) is less than 1 (d) (x) = y

Math
evaluate this expression: (31) - (-1)=

Math
If neon has a melting point of -248 and hydrogen a melting point of -259. Is the melting point of neon greater or less than hydrogen's. I think greater than. Am I correct?

Math, geometry
It is 19.2325

bautista creek
John has 4 cups filled with fruit juice.he said that he has a gallon of fruit juice.Is his statement reasonable? explain why or why not.

Math
I did not have to copy the problem. This is the way it is written in my math text/workbook.

Math
To make 4 1/2 gallons of ice cream, it takes 6 3/10 gallons of milk. How many gallons of milk does it take to make one gallon of ice cream?

math
Ms. Sue, this is the way the problem is in my math book.

math
I don' know Ms. Sue. Can you help me , please!

math
To make 4 1/2 gallons of ice cream, it takes 6 3/10 gallons of milk. How many gallons of milk does it take to make one gallon of ice cream? Do I divide 6 3/10 by 4 1/2

math
It is recommended that 3/5 of the calories a person consumes come from carbohydrates. If 1/12 of these calories should be from fiber, what fraction of the number of calories should come from fiber?

math
thank you steve

math
so sorry sometimes I use my middle name

math
can I get some help just want to know if I am doing okay

Pre ALGEBRA
The answer is B because cubes have more than one base

science
A mixture of sugar and water can be separated by ______________. Choose ALL that apply. (2 points) Box 1. using a magnet Box 2. boiling the mixture Box 3. evaporating the mixture Box 4. using a filter I picked "Box 2" and "Box 3"

science
Which of the following represents a heterogeneous mixture? A.saltwater B.air C.bleach and water D.chicken noodle soup I think the answer is D. Chicken noodle soup. I don't know exactly.

math
Homeroom 101 and Homeroom 102 share a hallway bulletin board. If Homeroom 101 uses 3/5 of their half to display artwork, what fraction of the board is used to display to display Homeroom 101's artwork? Which is correct-3/5 x 1/2 , 3/5 divided by 1/2. or 3/5 x 1/2?

math
I have 4 hundreds, 5 tens, and 23 ones. What number do I have?

chemistry
A man pushes on a trunk with a force of 250 newtons. The trunk does not move. How much positive work is done on the trunk?

Language Arts
Is it A

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