Sunday

May 1, 2016
Total # Posts: 435

**Science help ASAP**

Thanks!!!
*April 26, 2016*

**Science help ASAP**

1. Carrying capacity is the maximum number of ____ that an ecosystem can support. A. Different species B. Individuals in a population C. Habitats D. Limiting factors
*April 26, 2016*

**Chemistry**

Determine the pH of a solution made by diluting 25mL of 6.0 M HCl until the final volume of the solution is 1.75 L
*April 21, 2016*

**ATTENTION TEACHERS AND STUDENTS**

Mrs. Matthew called me stupid for not knowing the answer to this so...May I please get some proper help? The cost for a business to make greeting cards can be divided into one-time costs (e.g. a printing machine) and repeated costs (e.g. ink and paper). Suppose the total cost ...
*April 8, 2016*

**History**

Ello. I you're right. ;)
*April 8, 2016*

**Math**

B. Am I right?
*April 8, 2016*

**Math**

The cost for a business to make greeting cards can be divided into one-time costs (e.g. a printing machine) and repeated costs (e.g. ink and paper). Suppose the total cost make 500 cards is $1,100, and the total cost to make 650 cards is 1,400. What is the total cost to make 1...
*April 8, 2016*

**History**

1. Abraham Lincoln cause four states to join the confederacy by _____ A. Declaring War B. Firing on Fort Sumter C. Emancipating the enslaved people D. Calling for troops*** 2. What Confederate capital was only about 100 miles from Washington D.C.? A. Richmond, Virginia*** B. ...
*April 8, 2016*

**Science**

Then it's D? Cause I looked at my notes again. And it looks like D.
*April 7, 2016*

**Science**

Which of the following can be expected to occur as climate change continues on Earth? A. Decreased melting of sea ice B. Decreased migration of pests and pathogens*** C. Increased freshwater sources D. Increased coastal flooding
*April 7, 2016*

**U.S. History**

1. The admission of Missouri as a slave state was controversial in the Senate because... A. The senate was pro-slavery B. It would create sectionalism*** C. It would upset the balance D. The senate was anti-slavery
*April 6, 2016*

**Health**

The functional unit of the nervous system is.. A. The Neuron B. The Brain*** C. A reflex D. The cerebrum
*April 4, 2016*

**Chemistry**

How many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?
*March 29, 2016*

**Math please help**

Thank you so much. I've been working on this for half an hour
*March 28, 2016*

**Math please help**

The measure of the supplement of an angle is 30 more than twice the measure of the angle. Find the measure of the angles.
*March 28, 2016*

**physics**

A 1,500-kg car stands on a square platform, and a 25-kg boy stands on another square platform. These platforms are the two caps of a large oil-filled container. What must be the ratio of the platform sides (large/small) for the boy to gently lift the car?
*March 26, 2016*

**History**

In the congressional election of 1858, the Senate race in what state was the center of national attention? A. Illinois B. Michigan C. Indiana D. Ohio
*March 24, 2016*

**Math**

4/3
*March 16, 2016*

**Math**

I'm assuming a student!
*March 3, 2016*

**Science**

Correct.
*March 3, 2016*

**Science**

Nope. Neither.
*March 3, 2016*

**math**

Simplifying 4x2y + 12xy2 + 9y3 Reorder the terms: 12xy2 + 4x2y + 9y3 Factor out the Greatest Common Factor (GCF), 'y'. y(12xy + 4x2 + 9y2) Factor a trinomial. y((2x + 3y)(2x + 3y)) Final result: y(2x + 3y)(2x + 3y)
*March 2, 2016*

**Math**

40+20=60 10+20=30 There.
*March 2, 2016*

**maths**

Transformations Angles Circle Theoroms Simultaneous Equations Histograms, cumulative frequency Surds Vectors Recurring Decimals That's all I know.
*March 2, 2016*

**Math**

52/4=13. Now you do the rest. (if needed)
*March 1, 2016*

**northdale middle school**

a ski rental charges $27.00 for 3 hours and $45.00 for 5 hours. What is the equation?
*February 18, 2016*

**Math**

The team had $127.00 to spend on t-shirts for each of the fifteen team members. After purchasing the t-shirts, the team had $7.00 left. How much did each t-shirt cost?
*January 26, 2016*

**geometry**

If a rectangular prism has a surface area of 198 square feet, a height of 6 feet and a lateral surface area of 144 square feet what is the base area of the prism? What is the volume of the prism?
*January 15, 2016*

**la**

what has two e's and has to do with Christmas.
*December 16, 2015*

**science**

Electric Charge A. Radiation B. Electricity C. Discovery D. Potential Energy I think either b or d but i'm not sure which on is right.
*December 9, 2015*

**Physics**

Randy throws a tennis ball horizonally to hit a wall 20 m away. If the ball hits the wall 1.5s after it is thrown, what is the horizontal component of the balls velocity?
*November 11, 2015*

**math**

You and your friends form a band. You want to record a demo. Studio A rents for $100 up front plus $50 per hour. Studio B rents for $50 up front plus $75 per hour. After how many hours will the rent be the same? What will the rent be? .......... PLEASE HELP. I NEED THIS TO BE ...
*November 1, 2015*

**Math**

Dylan plants grass in a rectangle space behind the clump house.nthe area of the space was 70 ft. If the length of the space is 14 ft. What's the width of the space
*October 28, 2015*

**public speaking**

I am trying to pick a motivational speech topic where I have to convince someone to do something (i.e stop shopping at a store, join a particular organization, etc). However, we have to have 5 credible sources, one of which has to be a peer-reviewed article. So, this limits ...
*October 18, 2015*

**Math**

If a rectangle has four congruent sides, it is a square. A square has perpendicular diagonals. Conclusion: A rectangle has diagonals that are always perpendicular. Which of the following is correct The conclusion is valid by the law of syllogism. The conclusion is invalid ...
*October 15, 2015*

**Math **

I don't understand how to solve this equation -2+5x-7=3x-9+2x could you help me out?
*October 9, 2015*

**first part**

no. of componenents = 2 (Na2SO4 and water - as each phase can be described by these two components only) no. of phases = 3 ( solid and liquid and vapor) degrees of freedom = 2-3+2 = 1
*October 3, 2015*

**Biology**

how does the number of electrons in an atom determine what kind of bond it can form?
*September 11, 2015*

**Biology**

I did a lab and have been graded already. One of the questions asked us to pick good scientific questions from a list of choices. One of the choices read, "What soil properties determine the resulting color of a plant's flowers?". Note: I have changed the wording...
*September 5, 2015*

**Math**

2018!!!!
*August 31, 2015*

**geometry**

there is a rectangular parking lot with a length of 2x and a width of x what is the ratio of the perimeter of the parking lot to the parking lot, in terms of x?
*August 4, 2015*

**math**

Rationalize the denominator of 2sqrt7/x+sqrt7 I need steps to do this. Been a while since high school. Thanks
*July 12, 2015*

**physics**

GPS satellites orbit the earth about 20,000 km above the surface of the earth. The radius of the earth is 6,371 km. What is the acceleration due to earth’s gravity on the GPS satellites? i've tried fooling around with the A = V^2/ R and V = 2pir/T equations, but I ...
*May 1, 2015*

**Geometry**

Sarah is filling a glass sphere with decorative sand. The radius of the sphere is 2 inches. Which is closest to the minimum amount of sand Sarah needs to completely fill the glass sphere?
*April 23, 2015*

**indian ridian ridge **

Simplify the given expression to rational exponent form and justify each step by identifying the properties of rational exponents used. All work must be shown. 1/cubed root of x to -6 exponent
*March 7, 2015*

**math**

If you place $2,000.00 in a savings account with an interest rate of 4.5%/month versus an account with a rate of 3.75%/month, how much more interest could you earn in that month using the first account?
*March 2, 2015*

**Math**

If you place $1000 in a savings account with an interest rate of 5.25% a month how much should you earn an interest at the end of the month?
*March 2, 2015*

**Pre-Algebra**

It wont let me upload it ugh
*February 23, 2015*

**Pre-Algebra**

1.) if m<1=43 what is m<4? a: 53 b: 43 c: 37 d: 47 2.) if m<1=55 what is m<5? a: 55 b: 40 c: 35 d: 25 3.)if m<4=25 wht is m<8? a: 105 b: 75 c: 175 d: 25
*February 23, 2015*

**chemistry (Bohr model)**

The second ionization energy of He is almost exactly four times the ionization energy of H, and the third ionization energy of Li is almost exactly nine times the ionization energy of H: IE (MJ mol-1) H(g) --> H +(g) + e- (1.3120) He+(g) --> He2+(g) + e- (5.2504) Li2+(g...
*February 9, 2015*

**physics**

A particle carrying a charge of 6.0uC is located at the origin of a rectangle coordinate system, and a particle carrying a charge of 4.0uC is located at (0,5.0m). What are the magnitude and direction of the electric field at the positions (5.0m,0), (-5.0m,0), and (0,-5.0m)?
*February 5, 2015*

**physics**

A positively charged solid sphere of radius 100 mm has a uniform volume charge density of 250 nC/m^2. Determine the electric field (a) 20 mm, (b) 90 mm, and (c) 110 mm from the center of the sphere.
*February 5, 2015*

**Organic Chemistry**

If you have 5.6 mL of 95% hexanes to 5% ethyl acetate, how many mL of 85% hexanes to 15% ethyl acetate can you make? Assume unlimited supply of pure ethyl acetate.
*February 2, 2015*

**Inorganic Chemistry**

Use Slater's rules to calculate the effective nuclear charge, Z* or Zeff, for a 4f electron in Eu, Tb, and Dy.
*February 2, 2015*

**Column Chromatography**

If you have 5.6 mL of 95% hexanes to 5% ethyl acetate, how many mL of 85% hexanes to 15% ethyl acetate can you make? Assume unlimited supply of pure ethyl acetate.
*February 2, 2015*

**Math**

What is the mean absolute deviation of 640 250 500 640 720 640 250 720
*December 7, 2014*

**math**

5/7 times9/10
*November 22, 2014*

**math**

1/3 divided by 5/8
*November 22, 2014*

**math**

somebody please help me
*November 22, 2014*

**math**

4/5 times 3/4
*November 22, 2014*

**math**

4/3 times 3/4
*November 22, 2014*

**History(Checking Answers)**

Thanks , Okay so is it Northeast? and For the first answer Climate that supported a large agricultural base..
*November 18, 2014*

**U.S, History**

You're welcome.
*November 18, 2014*

**U.S, History**

I believe its C
*November 18, 2014*

**English**

How can I make this sentence present tense? Or is it already present tense? The problem I'm having is with the word "banished" which is past tense. And my teacher wants us to write in the present tense. I have the main verb present so does that make the whole ...
*November 9, 2014*

**AP Chem**

NO2 + H2 <-> NO + H2O [H2] = .30 mol/L [NO2] = .20 mol/L [NO] = [H20] = .70 mol/L @ 1000K A. What is the mole fraction of NO in the equilibrium mixture? B. Calculate Kc C. Determine Kp in terms of Kc D. If system is cooled to a lower temperature, 35% of NO is converted ...
*October 28, 2014*

**English composition**

I'm writing a paper to explain a concept of the bevel Ella Minnow Pea. I've come up with a thesis statement and my teacher has approved it, but I'm just stuck as to what I'm writing about. The assignment instructions asks "How does Dunn legitimize his ...
*October 26, 2014*

**English - grammar**

How to decide how to end a sentence with he/him or she/her? Ex. We can not eat before he? or him?
*September 30, 2014*

**Algebra**

Interval notation: (-7,3) If it was included (less than or equal to/greater than or equal to) you would use a bracket [ or ].
*September 30, 2014*

**physics**

A small relief package is dropped by a helicopter that is descending steadily at 2.0 m/s. a) After 2.5 s, what is the speed of the relief package? b) After 2.5 s, how is the package below the helicopter? I think I need to use the kinematic equations.
*September 28, 2014*

**Algebra1**

Umm can u please say something more specific
*September 22, 2014*

**Algebra1**

Which variable can you replace with a number 10a + 6c = $ 80 ❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️
*September 22, 2014*

**chemistry**

A room contains 47kg of air. How many kilowatt-hours of energy are necessary to heat the air in the house from 7∘C to 26∘C? The heat capacity of air is 1.03 J/g∘C
*September 10, 2014*

**chemistry**

Calculate the final temperature of 34mL of ethanol initially at 13∘C upon absorption of 938J of heat. (density of ethanol =0.789 g/mL)
*September 10, 2014*

**science**

what is the weight of the ethyl alcohol that exactly fills a 200.00 ml container? The density of ethyl alcohol is 0.789 grams/ml
*September 9, 2014*

**Math 11**

From a window in a building 20 m above ground the angle of depression of the top of a statue across the street is 30 degrees, and the angle of depression of the base of the statue is 34. How tall is the statue?
*June 8, 2014*

**Math 11**

From a weather balloon high in the air, the angle of depression of a ground marker is 27.8 degrees. If the balloon rises 345 m straight up the angle of depression from this higher point is 46.2 degrees. How high above the ground is the balloon?
*June 8, 2014*

**math**

THAT RIGHT\
*April 28, 2014*

**Physics**

A disk at rest experiences a constant angular acceleration for t = 85 s, at the end of which it is spinning with a frequency of f = 45 rpm. Please answer the following questions. A)Write an expression for the magnitude of the angular velocity of the disk after the acceleration...
*April 26, 2014*

**Math**

OH OK I TELL YOU
*April 26, 2014*

**Math**

F(x)=x^2-2x-3 plz help me slove this ? HELP ME I DO NOT UNDERSTAND THIS HELP ME PLZ
*April 26, 2014*

**math**

OH OK THANK YOU
*April 26, 2014*

**!math (3)**

ffhffvyffcyfgcyffyfifyislrygfyfqlwlygygyilwfhgie;
*April 25, 2014*

**letter**

IS THAT A GOOD LETTER MS. SUE
*April 25, 2014*

**letter**

OK ITS JUST MY COMPUTER IT KEEP PUT DATE
*April 25, 2014*

**letter**

How can I write a feel better letter to Miley Cyrus? please help and give me so examples please help HOPE YOU FEEL BETTER [DateDear Miley cyrus I was quite upset to hear that you are feeling ill. However, I am every certain about you and i hope you will feel better in no time...
*April 25, 2014*

**letter**

HOPE YOU FEEL BETTER [DateDear Miley cyrus I was quite upset to hear that you are feeling ill. However, I am every certain about you and i hope you will feel better in no time. Please accept, then, my sincerest wish that you get better soon. we can meet each other some day ...
*April 23, 2014*

**letter**

hold on wrong letter
*April 23, 2014*

**letter**

this is a good letter to send to miley cyrus yes or no HOPE YOU FEEL BETTER [Date] [NAME, COMPANY AND ADDRESS, ex. Dear Miley cyrus I was quite upset to hear that you are feeling ill. However, I am every certain about you and i hope you will feel better in no time. Please ...
*April 23, 2014*

**letter**

How can I write a feel better letter to Miley Cyrus? please help and give me so examples please help
*April 23, 2014*

**ENGish**

1. What are the characteristics of an effective television newscaster? Explain. 2. Why are so many people over the age of twenty-one entering college? Discuss. 3. What could be done to make the public less hesitant to report crime? 4. Do Americans seem unable to relax in ...
*April 21, 2014*

**English**

It's C alex my brother sorry I meant its D that the right answer I think good luck my brother
*April 16, 2014*

**social studies check answers**

yeah what are the answers to 3 and 5 then
*April 16, 2014*

**social studies**

number 4 is b
*March 18, 2014*

**social studies**

Kyle you put 7 as D and 8 as C there really B and B.
*March 17, 2014*

**geometry**

The measure of an exterior angle of a regular polygon is given. Find the number of sides of the polygon? Given number is 72?
*March 3, 2014*

**Math**

In a right triangle, the measure of the legs are 20 and 3x, and the measure of the hypotenuse is 4x+1. Find the value of x.
*March 2, 2014*

**math**

Use 17 connecting cubes to make a kitchen model. Model is is the shape of rectangle and is one cube high. How many different ways to make the model?
*February 27, 2014*