Tuesday

July 22, 2014

July 22, 2014

Total # Posts: 174

**uGH**

Im depressed

**Cvics-I need these answers checked now or ill fail**

PLEASE!

**Cvics-I need these answers checked now or ill fail**

which of the following would be part of the democratic party platform? 1: cutting taxes for the wealthiest citizens 2: providing for public health care 3: decreasing the size of government 4: cutting funding for educational programs <-- If all counties in Florida had used t...

**Math**

An ice cream shop offers 7 toppings. How many 4-topping ice cream sundaes can you make? A)11 B)28 C)30 <-- My answer D)35

**math**

factor completely 81x^4 - 81 possible choices are:: (9x^2 + 9)(9x^2 - 9) OR (9x^2 +9)(3x + 3)(3x - 3)

**math**

thank u

**math**

solve for c A= -3(a + b - 1/3c)

**math**

Thank you very much!!!

**math**

simplify ^5 square root x^20

**MATH**

Find the least common denominator of the two rational expressions. 4k 2 ________ + ________ k^2 - 9 3 - k

**MATH**

Thank you for your help! :)

**MATH**

If the perimeter of a rectangle is 60m and the area is 225m^2 what is the length of the rectangle?

**Civics- Help PLEASE**

1. Which goal of foreign policy relates to protecting the safety of Americans? Spreading democracy World peace „² My Answer National security Humanitarian help 2. Which foreign policy approach describes a country that avoids interaction with other countries? Interven...

**MATH HELP ASAP**

That is so cool!! :) twins haha!!

**MATH HELP ASAP**

Thank you!! This is correct!!!

**MATH HELP ASAP**

Please Help!! Louis is planning to mow a rectangular yard that is 20 feet longer than it wide. He wants to find its width if its area is 1125 square feet. Which equation models this problem? A. 20w2 = 1125 B. w2 + 20w = 1125 C. w2 – 20w = 1125 D. w + 20w = 1125

**math**

Can you please show me how you got this answer, because when you multiply your answer by the original divisor it does not come up to the original problem. Help I do not understand this.

**math**

Divide: 12x^2y - 6xy + 4x^2 ____________________ 2xy Thank you!!

**Math**

Simplify!! 54 a^2 b^3 ___________ 81 a^3 b^2 Choices are:: A. 2a^2 b _____ 3 I have revised my choices! now try B. 2a^2 ____ 3b

**Math**

I'm sorry but that is not a choice.

**Math**

Simplify!! 54 a^2 b^3 ___________ 81 a^3 b^2 Choices are:: A. 2/3 a^2 b B. 2a^2 ____ 3b

**Math**

lets start over with this problem: n^2 - 9n + 9 how do you determine if this is a perfect square, and can you factor it?

**MATH**

is the polynomial:: y^2-25x+25 a difference of squares, if so factor it. Thank you so much!!

**Math**

Can you please explain how you got this, so I can understand it better?

**math**

A movie theater ticket booth opens at 10 am. There are four tellers who divide the customers evenly. The tellers have served 16 customers so far this morning. which expression represents the unknown number of customers each teller will serve? Let c represent the additional num...

**MATH**

Raul reads 22 pages per hour. How many pages did he read in x hours? write an algebraic expression to represent th situation.

**math**

find the ratio please!! 10m² over 2m^5 a. 5 over m³ b. 5m³ c. m³ over 5 d. 1 over 5m³

**math**

3 and 3/4 miles I believe!

**math help**

Simplify. 8x^7y^4 over 2x³y² a. 16x³y^4 b. 16x^4y² c. 4x³y^4 d. 4x^4y² I appreciate it help!

**trig**

Use a calculator to find: θ if θ = csc-1 1.7516. θ = _____°. Round to three decimal places.

**Chem**

Which formula represents an unsaturated hydrocarbon? a. C3H6 b. C3H8 Is the answer B? Thanks! :)

**PreCalc**

Why when graphing a regular tan graph, the period is pi but when I graph a sin or cos it has a period of 2pi?

**Equivalent Fractions**

Idk what you guys are saying but....what is equivalent to 5/36!?!?!?

**chem**

when hydrocarbons are burned in a limited amount of air CO as well as CO2 form. When 0.450 grams of a particular hydrocarbon was burned in air, 0.467 grams of CO, 0.733 grams of CO2, and 0.450 grams of H20 were formed. a. What is the empirical formula? I got C2H3! check? b. Ho...

**precalc**

use power reducing identities to prove the identity sin^4x=1/8(3-4cos2x+cos4x) cos^3x=(1/2cosx) (1+cos2x) thanks :)

**chem**

hemoglobin, the oxygen-carrying protein in red blood cells, has four iron atoms per molecule and contains .340 percent iron by mass. calculate the molar mass of hemoglobin! thanks! :)

**apush**

was it a religious difference that sparked the leisler rebellion in new york?

**apush**

I am still a little bit confused. So during the Glorious Revolution, King James II was overthrown and replaced by William and Mary as co-rulers. Then why did Jacob Leisler rebel against the policies of the King James the II?

**apush**

Why did Leisler Rebellion start? How was it related to the Glorious Revolution?

**apush leisler rebellion**

James II became King of England in 1685 and New York became a royal colony. James II decreed the formation of the Dominion of New England in 1686 and added the colonies of New York and New Jersey in May 1688, designating New York City as the capital. In late 1688, the Glorious...

**math-law of sins**

Okay, so all three of these are cases where the triangle does not exist?

**math-law of sins**

solve the triangle: 1. A= 61 degrees a=8 b=21 2. A=136 degrees a=15 b=28 3. C=115 degrees b=12 c=7 For all of these problems I used law of sins and when I input it into my calculator I get domain error after doing sin inverse to get an angle degree. What am I doing wrong?

**us history**

for Leisler Rebellion, what happens in the end? I understand that Leisler and his son in law were arrested and then hanged for treason. But what happened after that? The goverment regain control? Also for Bacon's Rebellion, what also happens in the end before Bacon died of...

**sat math**

thanks! :)

**sat math**

At a certain hospital, 89 children were born in the month of June. If more children were born on the fifteenth of June than on any other day in June, what is the least number of children that could have been born on the fifteenth of June? The number of days is not given, is it...

**us history**

Compare and contrast bacons' rebellion with leisler's rebellion. Were there any common causes or patterns that link these rebellions together? I know that Bacon's Rebellion was Nathaniel Bacon going against the Governor Berkeley's order and wanted to kill the N...

**trig**

so cos would be root 15/ 4 and cot would be 1/ root 15? one more question, how do you know it is in the second quadrant?

**trig**

find sin theta and tan theta if cos theta = 2/3 and cot theta is >0 and find cos theta and cot theta if sin theta = 1/3 and tan theta is <0 thanks! :)

**math**

the lab keeps two acid solutions on hand. one is 20% and the other is 35%. how much 20% and how much 35% acid solution should be used to prepare 25 liters of a 26% solution?

**us history**

I am well aware that no one will write my assignments for me, I was just looking for some differences and comparison between the two...

**us history**

compare and contrast early settler's relations with native Americans in early Virginia and new England, thanks!

**chem**

would you expect the nonbonding electron pair domain in nh3 to be greater or less in size than for the corresponding one in PH3?

**chem**

how are the length of single, double, and triple bonds between the same kinds of atoms compare?

**factoring**

is x^3 +8 factorable?

**how to find domain and range**

how do I find the domain and range of y= 5/(2x+1) -4

**naming acids and bases**

how do you name acids and bases?

**alg2**

solve for 10/x^2-2x + 4/x = 5/x-2 3x/x+1 + 6/2x = 7/x 8(x-1)/x^2-4 = 4/x-2 check for any extraneous solutions! thanks!

**algebra**

how do you solve 15+x=3x-17?

**chem**

What mass of ice at 0°C can be melted by the addition of 1670 joules of heat? When the temperature is decreased on the following system at equilibrium: 2 HCl(aq) + Mg(s) <--> MgCl2(aq) + H2(g) + heat a. In order to restore equilibrium, the reaction shifts left, towar...

**chem**

yeah i drew it, and i got the for bonding pairs. so it has zero lone pairs correct?

**chem**

CF4 how would you determine the molecular shape using vsepr? i got that it has 32 electrons and four bonds. im stuck on how to get the non bonding domains and shape and bond angle! thanks!

**math**

people flock to andys lemonade stand because each cup of lemonade is only 35 cents. sometimes customers buy several cups of lemonade.Andy and his helpers have to figure out how much to charge each time someone buys more than 1 cup of lemonade. what could they do to save time?

**electron configuration shorthand method?**

thank you! I think I kinda understand it now!

**electron configuration shorthand method?**

I missed school today so the hw is a bit confusing and I have a quiz on this tmr. For example I have Br which has 35 electrons. [Ar]_______ and then what do I do? How do I know what to put next? how would you do Phosphorus? thanks!

**chem**

what are three different situations in which the diffusion of gases is desired or not desired. what could you do to increase the rate of diffusion(for a desired gas) or slow the diffusion( for an undesired gas)?

**please help! solve for x**

2^x+3=5^3x-1 thanks!

**logs**

how would you use log which has a subscript of 2 5 to approximate log subscript 2 50 and log subscript 2 0.4?

**math alg2trig**

how would you find the horizontal and vertical asymptote of y=x+2/x-3 and y=-3x+2/-4x-5? thanks

**chem**

explain why bubble wrap pops when u squeeze it

**chem**

why does a car tire's pressure increase during summer months? why do they under inflate during winter months? does a basketball bounce higher when the air inside it is cold or warm? thanks!

**chem**

oh okay thanks! also what would be considered as a free element? would 4Al be one?

**chem**

a considerable amount of heat is required for the decomposition of aluminum oxide. 2Al2O3-> 4Al(s)+ 3O2(g) change in heat= 3352KJ a. what is the heat change for the formation of 1 mol of aluminum oxide from its elements? i got this one. my answer is -1676.0KJ but i didnt ge...

**alg 2 log**

expand ln22x ln3xy^3 thanks :)

**chem**

a sealed cylinder of a gas contains nitrogen gas at 1.00*10^3 kPa pressure and a temperature of 20C. They cylinder is left in the sun and the temperature of the gas increases to 50C. What is the new pressure in the cylinder?

**Chem**

explain why the boiling point of temperature of water in a pressure cooker can be greater than 100C

**Chem**

how can the concept of specific heat capacity of water be used to explain the heating and cooling patterns of oceans and climate on the plane?

**chem**

wait. is it 4.186 J/g*C? so the answer is 280.462 KJ?

**chem**

thanks. q=1000g x specific heat x 67C what is the specific heat?

**chem**

how do u change L to grams?

**chem**

how many kilojoules of heat are absorbed when 1.00 L of water is heated from 18C to 85C? density of water is 1.0 g/ml

**chem**

thanks, i got 74.77% :)

**chem**

*yield

**chem**

phosphorus (12.28g) reacts with excess of oxygen gas to form 21.04 grams of diphosphorus penatoxide. what is the theoretical yile in grams of this reaction? im not sure how exactly do you start this?

**chemistry**

17.8 grams of CH4 reacts with 55.4 g of )2 to from CO2 and H20 what is the mass of H20 formed? and how much excess reactant is leftover? so i think that O2 is the limiting reagent and CH4 is the excess reagent help?

**chemistrt**

wait, i think i did it wrong. there is actually 0.865 moles of CO2 from the O2. SO the limiting reagent is O2?

**chemistrt**

okay, i was taught to pick one of the reactant and convert it to the other one. so i got 1.11 mole of CO2 and 1.73 mole of CO2. so that means that CH4 is the limiting reagent? 1.11 mole of CO2 * 44.01 g of cO2 is 48.9 grams of CO2

**chemistrt**

equation: CH4+ 2O2 = CO2 +2H20 1.11 moles of CH4 1.73 moles of O2 wait. why do we convert moles of CH4 to moles of CO2? and moles of O2 to moles of CO2?

**chemistrt**

17.8 g of CH4 react with 55.4 g of O2 to form CO2 and H20 identify the limiting and excess reagent. what is the mass of CO2 produced? how much excess reactant is leftover?

**chem h**

Methanol (CH3OH) is used in the production of many chemicals. methanol is made by reacting carbon monoxide and hydrogen at high temperature and pressure. CO(g) + 2H2(g) ==> CH3OH(g) a) How many moles of each reactant are needed to produce 3.60 x 10^2 g CH3OH? b)Calculate t...

**Morpheme Practice (Lit)**

Hi I'm confused on what is an stem extender and morphemes. Underline any stem extenders in the word below. Philosophy Banana Pheumectomy Anthropology How many morphemes do the following contain? Sown 1 Airsickness 2? Ohio 1 Algebra not sure. expel 1? Congenital 2? Cognate ...

**Past tense and Present tense in essay**

Thanks, but isn't "written" past tense?

**Past tense and Present tense in essay**

“Antigone” written by Sophocles shows Antigone, the main character as a tragic hero. Antigone is the true tragic hero because she acts without anticipating the consequences of her rebellion, realizes she has made an irreversible mistake only after it is too late to f...

**Antigone Essay due tmr!**

I think it is too late to change my thesis... "realizes she has made an irreversible mistake" came from my teacher...

**Antigone Essay due tmr!**

Antigone is the true tragic hero because she acts without anticipating the consequences of her rebellion, realizes she has made an irreversible mistake only after it is too late to fix it, and is responsible for an unhappy ending for all of the characters. This is my thesis. I...

**factoring polynomials help?**

16x^4-1 4x^4+39x^2-10 find the real number solutions of these equations. 3x^4+15x^2-72=0 x^3+2x^2-x=0 Thanks!

**Industrial Revolution**

Can I have a 8-10 sentence summary on the basics of the industrial revolution?

**Geometry **

how do you find the area of an octagon with the radius of four?

**Geometry**

how is the distance formula related to the pythagorean theorem?

**freedom similes and metaphors?**

I'm stuck on what to write for freedom similes and metaphors? help? Thanks!

**transitional math**

Im stuck on questions can anyone help me ? A)Which situation can be modeled by tossing a coin 3 times choosing which one of sixteen teams will win a tournament? B)picking one of six math teacher, C)decide which English teacher of eight will win a trip to London D)selecting a d...