Sunday

March 29, 2015

March 29, 2015

Total # Posts: 734

**physics**

A 8.0 kg shell leaves a 2.0 x 103 kg cannon, at a speed of 4.0 x 102 m/s. What is the recoil speed of the cannon?
*March 29, 2015*

**Health **

True or false: The endocrine system only regulates long term changes in the body? A. True *** B. False Which endocrine gland (s) are responsible for the changes associated with puberty? A. Thymus gland B. Reproductive glands *** C. Thyroid gland D. Pancreas If your body is ...
*February 27, 2015*

**math**

So, there is 5 siblings total. If you add up all there ages and divide by 5, you get 6. What can you divide by 5 to get 6? When you get "that number", you can age the siblings however you want to get "that number" as your total. The, keep finding the mean ...
*February 25, 2015*

**Chemistry**

What volume of oxygen gas can be collected at 0.565 atm pressure and 48.0◦C when 42.9 g of KClO3 decompose by heating, according to the following equation? 2 KClO3(s) ∆−→MnO2 2KCl(s) + 3O2(g)
*February 25, 2015*

**chemistry**

I need the answer so I can check my work.
*February 25, 2015*

**chemistry**

How much H2 gas at STP can be produced by the reaction 2 Na(s) + 2 H2O(ℓ)heat−→ H2(g) + 2 NaOH(aq) of 3.90 g of Na and excess water? Answer in units of L.
*February 25, 2015*

**Algebra**

20/4=5 16/4=4 12/4=3 8/4=2 4/4=1 So we know it is none of these. Now we are just using even numbers not equal to these. So, 18, 14, 10, 6, 2!!
*February 25, 2015*

**Chemistry**

What is a molecular dipole moment? A. A separation of charge characterizing a nonpolar covalent bond B. A separation of charge forming a positive and a negative end of a molecule C. The arrangement of charges around an atom in a nonpolar molecule D. A net cancellation of ...
*February 20, 2015*

**Chemistry **

A 11.6 g sample of an unknown metal was heated to 100.0 oC and then added to 25.0 g of water at 23.0 degrees Celsius in an insulated calorimeter. At thermal equilibrium, the temperature of the water in the calorimeter was 24.8 degrees Celsius. What is the heat absorbed or lost...
*February 19, 2015*

**math**

How do prove without using a formula , that the sum of the series 3²+3³+3to the power of 6+...to 20 terms is given by S20 =9/8(9to the power of 20 -1)
*February 19, 2015*

**Science**

ok. thank you so much
*February 10, 2015*

**Science **

Select the three words that belong together. To do this, pick oneword from each three sets below. Set 1. Estuary, lake, nertic zone Set 2. Hight salt, intermediate salt, no salt Set 3. Trout, coral, oyster (Choices) 1. Neritic zone, intermediate salt, oyster 2. Lake, no salt, ...
*February 10, 2015*

**social studies**

Why did the Jews feel entitled to claim Israel as their nation following World War 2 A) They had no place else to go B) They believed that God had promised them this land C) They had military strength to hold the land D) The United Nations had given them this land
*February 3, 2015*

**social studies**

someone help please
*February 3, 2015*

**social studies **

if you wanted to catch a rain shower while visiting Israel, Where would you most likely visit 1)Southern Israel 2) east of Jordan river 3) The dead sea 4) The Mediterranean sea
*February 3, 2015*

**Math Work**

Can someone please help me with this? Thanks! :) Directions: Use the Product-to-Sun formulas to write the product as a sun or difference. 4cos pi/3 sin 5pi/6
*February 3, 2015*

**Trigonometry**

(Triangle ABC is scalene) AC is a straight shore line and B is a boat out at sea. Angle A is 60 degrees and Angle C is 45 degrees. Find the shortest distance from the boat to the shore if A and C are 5km apart...I honestly have no idea where to start with this. I drew it out, ...
*January 28, 2015*

**Math**

Find the exact value: cos(pi/16)cos(3pi/16)-sin(pi/16)sin(3pi/16)
*January 28, 2015*

**math**

The answer was B, but thanks anyway. :)
*January 28, 2015*

**math**

oh sorry. thanks. the answer would to number one would be a
*January 28, 2015*

**math**

please help!!
*January 28, 2015*

**math**

A jug of milk holds 4 quarts. How many liters of milf does the jug hold. Round to the nearest hundredth of a liter. 1L= 1.06 qt A) 0.27 L B) 3.77 L C) 4.24 L D)5.06 L not sure on this one Garrett is 64 in tall. How many centimeters tall is he? Round your answer to the nearest ...
*January 28, 2015*

**L.A**

This is a question for my quick check in the poem yearnings What effect does lines 22 - 23 have? A. it shows that the speaker would rather be outside enjoying B. it reveals that the speaker is willing to take a big chance to do something great C. it emphasizes the assigned ...
*January 27, 2015*

**science**

a colorblind woman marries a man who isn't colorblind. All of their sons are color blind but none of their daughters are color blind. color blindness is likely 1)the result of having two few chromosomes 2)the result of having and extra chromosomes 3)a sex-linked trait 4)a ...
*January 27, 2015*

**science**

I need help Please!!!
*January 27, 2015*

**Science**

thank you
*January 27, 2015*

**Science **

A male peacock displays his colorful tail feathers in order to 1) increase the success rate of asexual reproduction 2) increase the gestation period 3) release gametes into its surroundings 4) attract a mate I chose 4
*January 27, 2015*

**math**

I got it thank you
*January 23, 2015*

**math**

I totally understand that part. But how do i know which one is the better deal. I dont mean to be interuptive
*January 23, 2015*

**math**

can you help me with the rest
*January 23, 2015*

**math**

Please Help!!! Ben needs to buy orange juice. He can buy 64fl oz at the grocery store for $2.00, or he can buy 256 fl oz at the wholesale club for 7.50. find the unit price for the wholesale club orange juice: round your answer to the nearest thousandth . Find the unit rate ...
*January 23, 2015*

**math**

Write the ratio has a unit rate 8 meters to 10 seconds 1)0.8 meter per second 2)1.125 meters per second 3)2 meters per second 4)80 meters per second
*January 23, 2015*

**math**

Can you check my answers? A box of crackers has 24 grams of fat. The box contains 8 servings. What is the unit rate? 1)16 grams of fat per serving 2)8 grams of fat per serving 3)4 grams of fat per serving 4)3 grams of fat per serving I chose 4 A 16-fl oz bottle of juice cost 2...
*January 23, 2015*

**math( ratios)**

Thank you:))) you are a big help.
*January 23, 2015*

**math( ratios)**

which ratio is equivalent to 3/7? 1)6 to 10 2)9:21 3)12/35 4)7 to 3
*January 23, 2015*

**social studies (Saudi Arabia)**

Thank you so much!! you were a big help.:)))))
*January 22, 2015*

**social studies (Saudi Arabia)**

In what way is Islam most likely to impact Muslims during work days? 1)They must leave work early 2)They will not participate in leisure activities after work 3)They can not have certain jobs 4)They need to pause during their work and pry I think it is 4. Am I correct? please ...
*January 22, 2015*

**Algebra 1, need help!**

What is the algebraic expression for the following word phrase: the product of 5 more than x and 6? A. 4(x+6) B. 6(x+4) C. 6+(x+4) D. 6-(x+4) evaluate x/y for x=2/3 and y=6/7 A. 7/9 B. 8/10 C. 9/12 D. 12/21
*January 16, 2015*

**Math**

is the answer x = 11
*January 12, 2015*

**Math**

Michelle has a starting balance on a gift card for $300. She buys several dresses at $40 a piece. After her purchases she has $140 left on the gift card. How many dresses did she buy?
*January 12, 2015*

**Math**

Thank you
*January 12, 2015*

**Math**

No can you work it out for me please
*January 12, 2015*

**Math**

artaud noticed that if he takes the opposite of his age and adds 40 he gets the number 28. how old is artaud?
*January 12, 2015*

**English**

Even though they are good friends, what is one argument seen in the play "The Night Thoreau Spent in Jail" between Henry and Waldo?
*January 8, 2015*

**Algebra 1**

The length of a rectangle is 2 more than 3 times the width. If the perimeter is 100 meters, what is the width of the rectangle?
*January 7, 2015*

**business**

do you have any good bussiness ideas that i could use. to raise some money for the poor. (just so you know i am one of those people who care unlike other people.)
*January 6, 2015*

**Writing/Environmental science**

I'm writing a thesis/research paper on how all animals play an important role on the environment. I'm trying to narrow my paper down on an endangered species but I'm having trouble deciding/thinking of a species that play IMPORTANT roles (ie.- honeybees). Except I ...
*December 19, 2014*

**Language Arts**

As soon as Johnny began to cultivate Dove, he was surprised at the response?
*December 19, 2014*

**History**

I Agree With All Along with the Great Ms.Sue :P
*December 8, 2014*

**math**

At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters away from his son's lane. Let x represent the distance the son has swum. a. Write x as a function of (theta). b. At what angle does the parent ...
*December 7, 2014*

**algebra**

Identify the vertices of the solution region of the system of linear inequalities. (Order your answers from smallest to largest x, then from smallest to largest y.) x ≥ −2 x ≤ 3 y ≤ 5 y ≥ x (x, y) = (x, y) = (x, y) = (x, y) = Tried several times, ...
*December 4, 2014*

**Science**

I hadn't seen ur post till after laggy internet :P
*December 1, 2014*

**Science**

Oh and Damon thank you for the help i believe u are right thoe <3
*December 1, 2014*

**Science**

Oh and Damon thank you for the help i believe u are right thoe <3
*December 1, 2014*

**Science**

After A little While Of Thinking I believe 16.) Is Stop 18.) is Nonpoint Source and 19 is Cost Benefit
*December 1, 2014*

**Science**

~~~~~~~~~~~~~~~~~~~~~~~~~Choices *Extra Words In The Word Box (Will Be Leftovers)* -Landfills -Limiting Factor -Non~point Source -Habitat Destruction -Stop -Migration -Biodiversity -Carbon Dioxide -Reverse -Carrying Capacity -Commensalism -Selective Cutting -Extinction -...
*December 1, 2014*

**english 3**

Question 1 (Multiple Choice Worth 5 points) Which element relies on logic, credibility, and emotion? rhetorical devices theme statements purpose statements thesis statements Question 2 (Multiple Choice Worth 5 points) "AT this second appearing to take the oath of the ...
*November 20, 2014*

**Social Studies**

Okay thank you for try to help. (:
*November 20, 2014*

**Social Studies**

Do you know what which one it is. This did not help me. Sorry): maybe it is just me.
*November 20, 2014*

**Social Studies**

What important resource do Qantas move? A)Solar Power B)Oil C)water D) Natural Gas
*November 20, 2014*

**chemistry**

A mixture of gases has the following partial pressure for the component gases at 20 degrees Celsius: oxygen 180.0 torr, nitrogen 3200 torr, and hydrogen 246.0 torr. Calculate the pressure of the mixture.
*November 6, 2014*

**algebra**

Putangina! Mag-aral ka mabuti! Hindi yung umaasa ka nalang sa internet!
*November 4, 2014*

**Chemistry**

Calculate the mass of sugar, C12H22O11, in 280.4 mL of a 1.49 M solution of sugar. (atomic weights: C = 12.01, H = 1.008, O = 16.00)
*November 3, 2014*

**Chemistry**

What volume (in milliliters) of 0.355 M aqueous ammonia, NH3, could be made from 19.9 mL of concentrated aqueous ammonia (15.0 M)? (atomic masses: N = 14.01, H = 1.008)
*November 3, 2014*

**Chemistry**

Household ammonia contains 0.85 g of NH3 in each 100. mL of solution. What is the molarity of the ammonia solution? (atomic masses: N = 14.01, H = 1.008)
*November 3, 2014*

**Chemistry**

What mass of sodium chloride, NaCl, is needed to make 369. g of a 3.04%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)
*November 3, 2014*

**Help!-algebra**

Which table of values can be used to graph the function y=-4x+3? a. x:-1,0,1,2 y:-1,3,7,11 b. x:-3,-1,1,3 y:-9,-1,7,15 c. x:0,1,2,3 y:3,-1,-5,-9 ***** d. x:0,1,2,3 y:3,7,11,15
*November 3, 2014*

**chemistry**

How many moles of Ca(OH)2 are in 4.10 kg of Ca(OH)2? Answer in units of mol
*October 31, 2014*

**physics**

If the speed of light through material Z is 2.5 × 108 m/s, what is this material’s index of refraction? The speed of light in a vacuum is 3 × 108 m/s.
*October 31, 2014*

**Math**

You have a recipe for homemade cookies that makes 5 batches.if the recipe calls for 3 and 1/3 cups of milk, how much milk would you need to make 1 batch?
*October 30, 2014*

**Science please help!!**

To determine the atomic mass of an element, you would take a _________ average of the isotopes that make up that element
*October 28, 2014*

**algebra. help!**

A cafeteria has two soda machines. Once machine has the following flavors: Cola, root beer, and lime. The second machine has lemon, orange, cola, and cherry. Which set represents all flavors in the two machines. a. {Cola, root beer, lime} b. {cola} c. {cola, cola, root beer, ...
*October 27, 2014*

**Math help**

A cafeteria has two soda machines. Once machine has the following flavors: Cola, root beer, and lime. The second machine has lemon, orange, cola, and cherry. Which set represents all flavors in the two machines. a. {Cola, root beer, lime} b. {cola} c. {cola, cola, root beer, ...
*October 27, 2014*

**physics**

To push a 16 kg crate up a frictionless incline, angled at 32° to the horizontal, a worker exerts a force of 108.0 N, parallel to the incline. As the crate slides 1.50 m, how much work is done on the crate by the worker's applied force?
*October 24, 2014*

**Math**

(-3.4,0)
*October 24, 2014*

**Math**

There are four brown shoes and 10 black shoes on the floor. your puppy cares away two shoes and puts one shoe in the trashcan and one in the laundry basket. a. What is the probability that there will be a black shoe in the trash and a brown shoe in the laundry basket?
*October 14, 2014*

**Science, The Nitrogen Cycle**

OOPS! Typo Sorry. Please*
*October 12, 2014*

**Science, The Nitrogen Cycle**

Multiple Choice: 1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other organisms can use? A. Nitrogen-Fixing Bacteria B. Denitrifying Bacteria C. Decomposers D. Producers 2. Which step in the nitrogen cycle is accelerated at the ...
*October 12, 2014*

**science!! please help me!!**

these are just a few of my homework questions, i have 50 more i just need some help with these ones. i would be so happy for any help that you can give me!!!
*October 11, 2014*

**science!! please help me!!**

1)When evolution was first proposed, which of the following was used as evidence to support the idea? (1 point) A)observations of nature*** B)laboratory experiments C)extensive fossil collections D)genetic sequences 2)How did Darwin and Lamarck differ in their thinking about ...
*October 11, 2014*

**physics**

On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The free-fall acceleration on the moon is 1/6 of its value on earth. Suppose he hit the ball with a speed of 33m/s at an angle 28∘ above the horizontal.
*October 5, 2014*

**Math Check**

Hi! Can someone check this and see if they are correct? Thanks! 1.) Which value of x should the expression be further simplified? √(21)x a.) 5 B.) 6 c.) 11 D. 55 My answer: a 2.) 2√43x is show: Which value of x makes the expression equivalent to 14√43? a.) 7 ...
*October 5, 2014*

**Algebra 1 Check**

Hi! Can someone check this and see if they are correct? Thanks! 1.) Which value of x should the expression be further simplified? √(21)x a.) 5 B.) 6 c.) 11 D. 55 My answer: a 2.) 2√43x is show: Which value of x makes the expression equivalent to 14√43? a.) 7 ...
*October 5, 2014*

**math**

Are you sure?
*September 24, 2014*

**math**

my answer is a for number 1. and d for number 2?
*September 24, 2014*

**math**

An art student wants to make a model of the classroom. The length of the classroom is 2.4 times its width. The length of the students model is 42 in. What should the width of the model be? a. 17.5 in b. 20.5 in c. 83.6 in d. 100.8 in Use mental math to determine the solution x...
*September 24, 2014*

**algebra. help!**

so its open?
*September 24, 2014*

**Pre-Calculus**

Shut your MOUTH
*September 14, 2014*

**Pre-Calculus**

Hello! I wanted to know if my answers are right or not? Thanks! :) 1.) Segments AB and CD have the following endpoints. Determine whether the segments are parallel, perpendicular or neither. A (3, 0), B (-2, 2), C (-1, 4), D (-3, -1) My answer: Parallel 2.) Segments AB and CD ...
*September 14, 2014*

**Pre-Calculus**

Hello! I wanted to know if my answers are right or not? Thanks! :) 1.) Segments AB and CD have the following endpoints. Determine whether the segments are parallel, perpendicular or neither. A (3, 0), B (-2, 2), C (-1, 4), D (-3, -1) My answer: Parallel 2.) Segments AB and CD ...
*September 13, 2014*

**Pre-Calculus**

Hi! I have three questions that I need checked over just to make sure I understand it. Thanks! :) 1.) What is the slope of the line that passes through (5, 8) and (-2, 6)? My answer: -2/7 2.) If Segment AB || Segment CD and the slope of Segment AB = 1/2, what is the slope of ...
*September 13, 2014*

**Math**

amy is building a house. the basement floor is at -15 feet. the roof of the house is above 25 feet. express the comparison of height as an inequality. explain the meaning of the inequality
*September 3, 2014*

**algebra**

The sum of 16 and twice Gail's score
*September 2, 2014*

**physical chemistry**

In an experiment, at a total pressure of 10atm and 400 degree celcius, the equilibrium mixture 2NH3=N2+3H2 the ammonia was found to have dissociated to the extent of 96%. Calculated Kp for the rxn. (reversible rxn).
*August 14, 2014*

**math**

In the diagram, the circle will be dilated by a scale factor of 3 about the origin. The points C, A, and B map to C', A', and B' after the dilation. What is the length of ? Use the distance formula to help you decide.
*July 24, 2014*

**physics**

A diver with a mass of 51 kg reaches a maximum height of 5.8 m above the water. When the diver has fallen 2.8 m from the apex, what is her kinetic energy (J)? Assume horizontal velocity is zero.
*July 20, 2014*

**math**

A woman buys a $ 78 necklace at a jewelry store. She gives the jeweler a check for $ 100. Because he does not have the $ 22 change, he goes to another merchant next door. There he exchanges the woman's check for $ 100 in cash. He returns and Gives the woman the necklace ...
*July 10, 2014*

**physics**

A mass m is gently placed on the end of a freely hanging spring. The mass then falls 21.3 cm before it stops and begins to rise. What is the frequency of the oscillation? I found the same question (with a different length) posted on here, but following the steps of the answer ...
*June 12, 2014*

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