# Posts by Sheryl

Total # Posts: 185

**6th Grade Science check please **

Why can certain stars sometimes be identified as eclipsing binary stars? A-brighter than any single star B-are all white dwarfs C-become dimmer at regular intervals*** D-cool red stars I'm pretty sure I have the answers correct but would like someone to check so I'm ...

**math**

It the track is 1/4 mile around and you do 3 laps in 4 and 1/2 min, how many mile per hour do you run?

**MSJC**

Simplify 2+(4+9)-2{18-3[7-(8-6) +1}

**Chemistry**

a diver swimming at a depth of 10m under the water observes that the size of his air bubbles increase in volume as they rise to the waters surface. which gas law does this relate to?

**Chemistry**

okay, so e) would be 2.77->2 but how would the others be to 1 significant number if there over?

**Chemistry**

i have to round each to 3 significant figures, then to one significant figure, in standard form, how? a) 87.073 m b) 4.3621 x 10^8 m c) 0.01552 m d) 9009 m e) 1.7777 x 10^-3 m f)629.55 m

**physics**

Two forces 7N each are inclined at an angle of 120 degree to each other. Find the single force that will replace the given force system

**Science help ms sue.**

By the way y'all not all the answers are here and some are wrong that y'all are saying are right. C/b/b/c/b/a/b/b/d/d/a/c/c

**Physics**

Five Boys are pushing a snowball, and each is pushing with a force of 10.0N. However, each boy is pushing in a different direction. They are pushing north, northeast, east, southeast, and south. (Each boy is pushing at an angle of 45.0 degrees relative to his neighbor.) What ...

**health**

All of the following should be considered competitors, with the exception of which one? Existing competitors, Indirect competitors, Potential competitors, Direct competitors

**math**

8 - 12

**Physics**

if the power developed is 290 ft lb/s for 12.8s what is the work done on the system?

**Pre Calculus**

You have to factor the polynomial. If for instance you get (x-3)(x+2), then your x intercepts are where you take each to equal 0. (x-3)= 0 so x = 3; and (x+2) = 0 so x = -2. The x intercepts are the opposite sign of the values of the constants in each binomial.

**math**

You cube the scale factor, so 4^3 = 64 times. lwh = 4lX4wX4h = 64lwh.

**Math**

Make a list of factors for both the coefficient of the x^2 term and the constant. In this case, 1 and 10. so 1X1 and then 1X10 and 2X5. Also, the fact that the constant is a negative 10, that means one of the 2 binomials must be negative. Then you look for the combination of ...

**math**

"How much more" would be subtraction, so subtract the smaller from the larger. 2/3 -5/9. (You can tell 2/3 is larger because the closer the numerator is to the denominator, the larger the fraction) Get common denominators or "names" as I like to use so that...

**math**

Assuming the dice are 6 sided, there are 36 possible outcomes to this situation, 6X6. How many are multiples of 7? Check the sample space, none of them are multiples of 7,impossible to get without a 7 involved.

**Math**

1/3 is your new whole, NOT 1. So take 1/4 of 1/3 + 1/6 of 1/3 + 1/6 of 1/3. Pretend there are 180 plants. That would make 60 of them on sale. 1/4 of that is 15, 1/6 is 10 and 1/6 is 10. so that makes 35 out of the 180 is 7/36. 1/12 +1/18+1/18 or 3/36 + 2/36 + 2/36= 7/36.

**MATH**

Wolframalpha is a great site for these type of problems. Check it out.

**Honors Trig**

a plane is flying in the direction of 190 degrees with an air speed of 400 mph. Its course and ground speed are 200 degrees and 350 mph respectively. What is the speed and direction of the wind?

**Math**

The easiest way to do this is do (30X 3) + (4X3) or 90 + 12 which is 102. No regrouping needed. This is called Partial products method.

**Math**

3/4 divided by 7/12 is the same as 3/4 X 12/7. This is the same as (3X12)/(4X7) which can first be reduced down to (3X3)/(1X7)= 9/7 or 1 and 2/7.

**MATH**

Place value is what the position of a particular numeral represents. For instance, in 43, the 4 represents 40 since it is in the 10's place value column and the 3 represents 3 since it is in the Ones Place value. 40 +3 = 43.

**geometry**

Seet up a proportion of Shadow/height for each object. So Shalonda would be 8/4 and the flagpole would be 28/x. so 8/4 = 28/x. Cross multiply and divide. (28 X 4) / (8x) or 112/8 = x. So the pole is 14 feet tall which makes sense if her shadow is twice as long as she is tall, ...

**Math**

If radius and height are halved, then the total surface area is 1/4 the size. (1/2)^2 = 1/4. So 218 /4 = 54.5 units squared. We get the relationship from SA being 2 dimensions, so we square the ratio. If this were volume, you would cube the scale factor ratio.

**Math**

pythagorean theorem.....if the height is 4 times, and it must reach 16, then the distance along the horizontal must be 4. so 4^2 + 16^2 = c^2. where c is the length of the ladder. Use a calculator to solve.

**English 8th class**

Go to Google and type in The Sport of Kings: Polo. I think you will get the answer you are looking for. There is an excellent article done by CBS News.

**Computers**

This is the part that will calculate the total number of license plates possible. def main(): num_of_poss_plates = 5*26*10*10*10 print('The number of possible plates are: ', num_of_poss_plates) main()

**Computers**

In Python - A state creates license plates, each containing two letters followed by three digits. The first letter must be a vowel (A,E,I,O,U), and duplicate letters and digits are allowed. The second letter can be any letter of the alphabet. The state only uses capital ...

**Computer Programming**

I am trying to put the following in Python Code. I know how to do it mathematically, but code - not sure where to start. A state creates license plates that each contain two letters followed by three digits. The first letter must be a vowel ( A, E, I, O, U ) and duplicate ...

**math**

Melissa earned a score of 75% on her first test. She wants to earn an 85% on her second test. What is the percent increase, rounded to the nearest whole number, from 75% to 85%?

**math**

Gary has 10 coins in his pocket. 2 quarters 5 dimes 3 nickels without looking, Gary pulls 1 coin from his pocket and puts it on a table. Then, he pulls one more coin from his pocket. What is the probability that the first coin is a dime and the second coin is a nickle?

**math**

Cece scored a 78 on her first math test. She scored an 84 on her second test. What is the percent increase, rounded to the nearest tenth, from Cece's first score to her second score?

**Algebra**

How do I solve 6/2x - 1 - 2/2x+1

**Math,Ratio**

2:3

**Criminal Justice**

Create an analysis chart in Word to compare and contrast the various theories on Domestic Violence. The theories suggested are: biological, psychological, sociological, feminist, and patriarchal. I am not sure how to set this up. Thanks

**Global Politics**

Describe the difference between intergovernmentalism and supranationalism. Provide useful examples from the European Union, NATO, and the United Nations.

**science**

The reaction 2SO + O2 ¨ 2SO3 is exothermic. (a) How will a rise in temperature affect the yield of SO3 in an equilibrium mixture of the three gases? (b) Will an increase in pressure raise or lower the yield? (c) In what possible way can the speed of the reaction be ...

**science**

Find the mass of 30 mol of sulfuric acid, H2SO4

**science**

What become of the electric energy provided in electrolysis? In what device is this energy transformation reversed?

**science**

When carbon in the form of diamond is burned to produce CO2, more heat is given off than when carbon in the form of graphite is burned. What form of carbon is more stable under ordinary conditions? What bearing does this conclusion have on the origin of diamonds?

**science**

Find the mass of 1.6 mol of magnesium, Mg. How many atoms are present in such a sample?

**science**

Find the mass of 30 mol of sulfuric acid, H2SO4

**Science**

You are given two solids that look nearly alike, one of which is held together by ionic bonds and the other by van der Waals bonds. How could you tell them apart?

**Science**

In an acidic solution, why is the OH- concentration lower than it is in pure water?

**Science**

You have a solution that contains Ag* ions and another that contains Na* ions. How would adding a solution that contains Cl- ions to these solutions enable you to tell which is which?

**Science**

Lithium atoms, like hydrogen atoms, have only a single electron in their outer shells, yet lithium atoms do not join together to form Li2 molecules the way hydrogen atoms form H2 molecules. Instead, lithium is a metal with each atom part of a crystal structure. Can you think ...

**physical science**

The ionization energies of Li, Na, K, Rb, and Cs are respectively 5.4, 5.1, 4.3, 4.2, and 3.9 eV. All are in Group 1 of the periodic table. Explain the decrease in ionization energy with increasing atomic number in this group.

**physical science**

Would you expect magnesium or calcium to be the more active metal? Explain your answer in terms of atomic structure.

**science**

Which of the following substances are homogeneous and which are heterogeneous? Blood, carbon dioxide gas, solid carbon dioxide, rock, steak, iron, rust, concrete, air, oxygen, salt, milk.

**science**

Under what circumstances would you expect the shared electron pair to be equal distances on the average from each of the atoms participating in a covalent bond?

**Science**

Why do lithium and sodium exhibit similar chemical behavior?

**science**

Why is the Bohr Theory incompatible with the uncertainty principle?

**science**

Find the frequency and wavelength of a 50-MeV gamma-ray photon.

**science**

my computer got hung up and i clicked submit by accident more than once by accident.

**science**

Why do you think the wave aspect of light was discovered earlier than its particle aspect?

**science**

Why do you think the wave aspect of light was discovered earlier than its particle aspect?

**Science**

What kind of experiment might you use to distinguish between a gamma ray of wavelength 10^-11m and an electron whose de Broglie wavelength is also 10^-11m?

**Science**

What kind of experiment might you use to distinguish between a gamma ray of wavelength 10^-11m and an electron whose de Broglie wavelength is also 10^-11m?

**Science**

Why is the Bohr Theory incompatible with the uncertainty principle?

**Science**

An electron microscope has a much greater useful magnification than an optical microscope because it can resolve smaller details. What makes the higher resolving power possible?

**science**

Why can neutrinos travel immense distances through matter whereas other elementary particles cannot?

**Science**

The binding energy of 20 10 Ne is 161 MeV. Find its atomic mass.

**science**

Find the Kinetic energy (in keV) of 12 6 C atom of mass 12.0 u whose speed is 2 x 10^6 m/s.

**science**

How does the number of neutrons in a stable nucleus compare with the number of protons? Why is this?

**science**

Why can neutrinos travel immense distances through matter whereas other elementary particles cannot?

**science**

What fuel other than uranium can be used in a nuclear reactor? Is the answer: Neptunium and plutonium, which are transuranium elements.

**english**

Thank you, Thank you, Thank you. I just needed to know I was going in the right direction.

**english**

Thank you for helping me better understand this assignment. I just wanted to know if I was on the right track with what I already wrote. I understand that I have to write one for each category.

**english**

Evaluative and Interpretive: The writer has a good start. However, I feel there could have been more information supporting why people don't understand computers and why they are fearful of learning new technology.

**english**

Evaluative: The fear of using computers stems from several reasons. Interpretive: Supportive: lack of understanding will create tension and ultimately lead to fear. Probing: Understanding: Fear of computers is primarily fear of the unknown.

**english**

The instructions are: From the piece of writing which follows, write at lest one complete sentence of feedback in each of the five types described in this section: Evaluative, Interpretive, Supportive, Probing, and Understanding. Label each of your five sentences with the ...

**english**

I have to give the following feedback to this paragraph: (Evaluative, Interpretive, Supportive, Probing and Understanding). I don't know how to start or if I have to use all the 5 types of feedback. This is the paragraph I have to read and give feedback on: The fear of ...

**english**

Is this good feedback for this paragraph? Evaluative: I think this is a good start but not enough supportive information. Supportive feedback: I found that this paragraph did not give enough support to why there was a fear of using computers, why people were fearful of it and ...

**english**

Read text below. Label 5 sentences with feedback (complete sentences), using these five types of feedback: Evaluative, Interpretive, Supportive, Probing, Understanding. The fear of using computers stems from several reasons. Most people don’t understand exactly how ...

**science**

Solve both equations for v. Kinematic: v=v0+at Energy: 1/2mv^2=mgh I have the height and time: Hgt: 2ft Time in second: 0.3 How do I find Velocity(v) in m/s(kinematic) and Velocity(v) in ft/s (energy)? I'm not sure where to start.

**Physical Science**

The brakes of a care are applied to give it an acceleration of -3m/s^2. The car comes to a stop in 5 s. What was its speed when the brakes were applied?

**Physical Science**

Two tugboats are towing a ship. each exerts a horizontal force of 5 tons and the angle between their tow ropes is 90. what net force is exerted on the ship?

**adding rational expressions**

2/3x+4 + 6/x+2

**Algebra 2**

1. A rectangle has an area of x3 + x2 – 7x + 2 square meters and a width of x – 2 meters. Find its length.

**Dividing Polynomials**

I do NOT get this, please help: (11x^2+2x^3+14+17x)/(2x+5)

**math**

Is there a common ratio for the geometric sequence and what are the missing terms? 16,40,100,?,? IS there a common ratio for the geometric sequence and what are the missing terms? 81,54,?,?,?

**math**

would the common ratio be 4 I am not sure how to compute because first term 4 x 4 = 16 but 4x16 is not 40 it equals 64 which is not the second term is possible there is no common ratio

**math**

how dO find the missing terms for the geometric sequence o,?, ?, ?...... 16, 40, 100......

**MATH**

PLEASE EXPLAIN HOW TO FIND THE COMMON RATIO FOR THE GEOMETRIC SEQUENCE 16, 40. 100,____, ____ AND 81,54, ______,______,______

**MATH**

IF the first term in a geometric sequence is 0 and no other terms are given what is pattern?

**english**

what is an verb adverb, action verb and how to use in a sentence

**6th grade math**

there are 20 student in the class 12 of them are boys what percent of class is boys

**Stats**

Skewed distributions were discussed in this week’s readings. Think about some of the psychological studies you are familiar with and the constructs investigated in those studies. Describe the study you are referring to and give some examples of the variables from the ...

**accounting**

The following financial data were taken from the annual financial statements of Smith corporation: 2007 2008 2009 Current assets $450,000 $400,000 $500,000 Current liabilities $390,000 $300,000 $340,000 Sales $1,450,000 $1,500,000 $1,400,000 Cost of goods sold $1,180,000 $1,...

**accounting**

a partial balance sheet and income statement for King Corproation follow: KING CORPORATION Partial Balance Sheet December 31,2009 Assets Current assets: Cash $33,493 Marketable securities $215,147 Trade receivables, less allowance of $6,000 $255,000 Inventories, LIFO $523,000 ...

**basic critical thinking**

I am not really sure at this point that's why i could use some help, I am having serious writer's block!! I am not trying to cheat I just need some help to get me started on this!!

**basic critical thinking**

select a topic of interest to you and explain how you would come up with a reliable sample for obtaining peoples' opinions.

**Chemistry**

Which has a larger radius, the oxygen atom (O) or oxygen ion (O-2) ? Explain. Isn't the ion bigger because negative ions are bigger than atom's radius. im not sure though.

**math**

Describe the steps you would use to add 57+29 on a hundred chart. Tell how to use the rows to find the sum.

**accounting**

For the year ending December 31, 2010, Johnson Manufacturing Company had depreciation totaling $38,000 on its office equipment. Give the journal entry to record the adjusting entry.

**Math 209-College Mathematics II**

How do you factor this completely: x^3 + ax + 3a + 3x^2

**4th grade**

Is it grammatically correct to begin a sentence with "what" if it is not a question or exclamation? For example: What a tree looks like.

**College Accounting**

An audit trail allows an individual to track a transaction from the journal entry to the general ledger through to the financial statements. The audit trail can also find all the transactions that comprise the dollar amount for each account listed on the income statement and ...

**College Accounting**

Your client is preparing financial statements to show the bank. You know that he has incurred a computer repair expense during the month, but you see no such expense on the books. When you question the client, he tells you that he has not received the official bill, although ...