Monday

July 25, 2016
Total # Posts: 172

**math**

Consider the cost function C(x)=x^3-3x^2+100x-10, discuss its domain
*July 9, 2016*

**Math**

There is an expression some people use that says, “What you put into it is what you get out of it.” People might use this expression to describe your skills at a sport or activity and how that relates to the amount of time and effort you spend practicing that ...
*May 25, 2016*

**geography**

an average of 760m, 96.2mm wide angled, height of 3 600m. what the scale of these photographs?
*April 6, 2016*

**Science**

Use the terms atom and element to explain what makes silver and gold different
*March 30, 2016*

**Science**

Which of the following determines the type of biome classification that will be made for a particular region? A.climate B.size C.mineral deposits D.number of human settlements* Thank you for the help
*January 26, 2016*

**math**

an open water tank with length 20 m and width 15 m holds 4800 cubic metres of water.calculate the total surface area of the part of the tank in contact with water
*January 26, 2016*

**math**

XYZ is an isosceles triangle with |XY|=|XZ|=6cm and angle XYZ=120°. Calculate the length of line YZ.
*January 21, 2016*

**Math**

Oats*
*January 19, 2016*

**Math**

Each serving of oatmeal is 8 ounces. How many servings are in a 5-lb bag of outs
*January 19, 2016*

**Math**

The window is 60 inches wide. What is the width of the window in feet?
*January 19, 2016*

**Language**

Character vs self, character vs society
*January 19, 2016*

**Chemistry**

The empirical formula of an oxide of nitrogen containg 30.4 per cent of nitrogen is NO
*January 16, 2016*

**Mathematics**

2 Digit Numbers Of Whic Their Sum Is 4.If The Digit Number Is Interchanged Their Difference Is 18.What Is The Digit Number
*December 19, 2015*

**Minanga elementary schol**

Five consecutive whole numbers has s sum of 225.what is the largest number
*December 3, 2015*

**Health**

Just took the test and @Anonymous' answers are right
*November 17, 2015*

**Math**

OK bye
*November 11, 2015*

**Math**

come on
*November 11, 2015*

**Math**

how to Explain why or why not. If it is not correct, give the correct prime factorization of the number.
*November 11, 2015*

**Math**

Explain why or why not. If it is not correct, give the correct prime factorization of the number.
*November 11, 2015*

**Math**

so OK
*November 11, 2015*

**Math**

come on
*November 11, 2015*

**Math**

OK but why
*November 11, 2015*

**Math**

I didn't know I need help please
*November 11, 2015*

**Math**

A number is written with the following factorization: 22 X 3 X 54 X 8 X 112. Is this factorization a prime factorization? Explain why or why not. If it is not correct, give the correct prime factorization of the number.
*November 11, 2015*

**Help math**

Please
*November 11, 2015*

**MATH**

i didn't understand
*November 11, 2015*

**MATH**

i didn't know
*November 11, 2015*

**MATH**

Is 38/53 in simplest form? Explain why or why not. If not, write it in simplest form.
*November 11, 2015*

**MATH**

Patsy has cheer leading practice every fourth day. She wants to be in the school play. but they have practice every sixth day. If both start on September 5th. what would be the next date she has to choose between cheer leading and play practice? the answer is what? I NEED HELP...
*November 11, 2015*

**Mathematics of INVESTMENT**

Q: Ms. Parker deposits $8000 in one simple interest account and $2000 in a second simple interest account. The interest rate on the $8000 account is 2% more than the rate on the $2000 account. If the total yearly amount of interest earned on the $8000 account is $459 more than...
*November 9, 2015*

**Math**

A researcher wants to estimate the mean blood cholesterol level of young men ages 15-25 with a 97.59% confidence interval. The blood cholesterol level of young men follows a Normal distribution with standard deviation σ = 15 mg/dl. How large a sample would the researcher ...
*October 20, 2015*

**Did you read The Pig Man And Me**

i didn't know
*October 11, 2015*

**Math HELP!**

38 = 2 * 19 53 = 53 * 1
*October 7, 2015*

**futher mathematics**

Find the centres and radii of the circles given by A)x2+y2=6x B)x2+y2-6x+14y+49=0
*September 30, 2015*

**ALGEBRA**

a cask containing 20 liters of wine was emptied of one-fifth of its contents and then filled with water. if this is done 20 times, how many wine will remain in the cask?
*June 20, 2015*

**1st grade math**

gcf
*May 21, 2015*

**math**

How much interest is earned on $470 at 4% for seven years?
*March 12, 2015*

**maths**

If u borrow $675 for 6years at an interest rate of %10, how much interest will u pay?
*March 12, 2015*

**math**

I am less than 20 I am an odd number I am the square root of 225 I am
*March 3, 2015*

**Science please help**

Okay. Then could it be A or D???
*February 19, 2015*

**Science please help**

It is important that you maintain a healthy weight both for your overall health and so that your respiratory system can A. deliver oxygen more adequately B. pump blood more forcefully from the heart C. keep capillaries constricted D allow for smaller amounts of air to enter ...
*February 19, 2015*

**L.A**

Happy Holidays
*December 18, 2014*

**L.A help please**

Okay! Thank you Ms. Sue(:
*December 17, 2014*

**L.A help please**

is it right?
*December 17, 2014*

**L.A help please**

The term "coming of age" refers to a person or a country that is maturing, or transitioning from childhood to adulthood. Which of the following passages from the text best supports the story's theme of coming of age, as it relates to either Johnny or the colonies...
*December 17, 2014*

**physics **

A 50.0 g sample of lead starts at 22 degrees Celsius and is heated until it absorbs 8.7 X 10^2 of energy. Find the final temperature of the lead
*November 14, 2014*

**English**

I am trying to write a position paper on Rise of the Image Culture: Re-imagining the American Dream and I cant think of a good thesis statement. Can you help me please?
*September 21, 2014*

**math**

write the number as a mixed number 11 over 2
*September 21, 2014*

**maths**

9 to the power of 2x+1=81 to the power of x ÷3 to the power of x
*August 13, 2014*

**science (check plz)**

A
*May 26, 2014*

**English **

Traditional healers should be allowed to practice and prescribe medicine in hospital and clinics
*May 18, 2014*

**science (check)**

I didn't know the answer
*March 28, 2014*

**Science Need Help like crazy!!!**

Hello.I have a question. Do sprouts germinate? Thank you for the help. PLEASE HELP:)
*January 6, 2014*

**physics**

you and a flight attendant toss a ball back and forth in an airplane in flight. Does the kinetic energy of the ball depend on the speed of the airplane? Defend you answer.
*November 29, 2013*

**physics**

you and a flight attendant toss a ball back and forth in an airplane in flight. Does the kinetic energy of the ball depend on the speed of the airplane? Defend you answer.
*November 29, 2013*

**Chemistry **

A solution containing 0.750g of an unknown substance in 30.0g of cyclohexane was found to freeze at 3.1 degree Celsius. What is the molar mass of the unknown substance?
*September 19, 2013*

**math**

Place the following numbers in order from greatest to least: -8.2, 0.4, -2 1/2, 2.4
*September 9, 2013*

**Literacy**

Who publishes Pediatric Nursing
*May 14, 2013*

**food and nutrition**

what are the steps in baking of cake?
*April 15, 2013*

**science**

find the theoreticval value of the period of a pendulum of length 0.9 meters located on the surface of the earth.
*February 26, 2013*

**chemistry**

why cant Na be used to prepare H2?
*February 14, 2013*

**Math**

Write a number sentence. Marshall sleeps 8 hours each day. How manu hours does Marshall sleep in one week? How many hours is Marshall awake each day?
*February 11, 2013*

**principles of macroeconomics**

The following is a list of figures for a given year in billions of dollars. Using this data, compute: (a) GDP; (b) NDP; (c) NI; (d) PI; (e) DI; (f) Net exports. Transfer payments $ 16 Government purchases 80 Personal taxes 38 Corporate income taxes 28 Indirect business taxes ...
*February 8, 2013*

**Languege arts**

how do you know what a b or c is I don't have that so can you type the answers with the words
*February 7, 2013*

**math**

what is the line segement for each length 2 1/4 and 7/8 when measured with a ruler
*February 4, 2013*

**algebra**

What happens when smog lifts in los angeles, california?
*January 30, 2013*

**Math**

x^2 + 9y^2 = 37 x - 2y = -3
*December 11, 2012*

**Math**

x^2 + 9y^2 = 37 x - 2y = -3 simultaneous equation by elimination
*December 11, 2012*

**Math**

x^2 + 9y^2 = 37 x - 2y = -3
*December 11, 2012*

**Math**

that is correct
*November 30, 2012*

**math**

Penny put 258 pens in one case.How many pens are in 698741235 cases
*October 30, 2012*

**math**

penny put 5 dounts in one pack how many packs will she have in 2587
*October 30, 2012*

**physics**

At a certain instant a moving object comes to momentary rest. Is it accelerating at that moment?
*September 19, 2012*

**Physics**

A glacier moves with a speed of 64 nm/s. How many years would it take for the glacier to move 0.8 km? Assume there are 365 days in a year.
*September 15, 2012*

**pure maths**

Factorize Xsquare-6x-3
*September 14, 2012*

**chemistry**

what is the vapor pressure of alcohol in 25 degree celcius? the answer should be answered in millimeter mercury. tnx^_^
*August 30, 2012*

**chemistry- transferring energy**

For the following questions, use the reaction SO3(g) SO2(g) + O2(g), with ÄH = 98.4 kJ/mol and ÄS = 0.09564 kJ/(mol·K). (8 points) i. Draw a possible potential energy diagram of the reaction. Label the enthalpy of the reaction. (2 points) ii. Is the reaction ...
*May 8, 2012*

**math**

You have 5 eighth of water you add 3 fourth is ut above or below the water level
*April 19, 2012*

**acids and bases **

Use the acid-base reaction HI + CsOH CsI + H2O to answer the following questions. i. What is the Arrhenius acid and what is the Arrhenius base in the above reaction?
*April 4, 2012*

**acids and bases**

What is the Arrhenius acid and what is the Arrhenius base in the above reaction?
*April 4, 2012*

**8th grade science**

i donw this one before and the answer is b)Balsa
*April 3, 2012*

**chemistry-balanced redox equations**

Use the following steps to balance the redox reaction below: Mg + Au+ Mg2+ + Au a. Write the oxidation and reduction half-reactions. Make sure each half-reaction is balanced for number of atoms and charge b. Multiply each half-reaction by the correct number, in order to ...
*March 25, 2012*

**chemistry- electrochemical cell**

What makes this an oxidation-reaction? 3Ag2S+2Al(s) -> Al2S3+6 Ag(s)? Write the half-reactions showing the oxidation and reduction reactions. Identify which is the oxidation reaction and which is the reduction reason. What is oxidized in the reaction? What is reduced? In ...
*March 25, 2012*

**chemistry- Stoichiometry **

If 852.04 g Al(NO3)3 reacted with the 741.93 g Na2CO3, which would be the limiting reagent? c. Use the limiting reagent to determine how many grams of Al2(CO3)3 should precipitate out in the reaction. d. If only 341.63 g of Al2(CO3)3 precipitate were actually collected from ...
*March 21, 2012*

**chemistry**

If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol? A. -4 kJ/mol B. -0.004 kJ/mol C. 0.004 kJ/mol D. 4 kJ/mol
*March 14, 2012*

**chemistry- empirical formulas**

since i dont have a teacher. I tried and this is what i came up with. 55.0/atomic massGa 55.0/69.723= 1.27 (rounded) 45.0/atomic massF 45.0/18.998404= 2.37 (rounded) If this is corect what do I do after this. If not can you help me with an headstart please.?
*March 14, 2012*

**chemistry- empirical formulas**

Calculate the empirical formula of a molecule with the following percent compositions: 55.0% gallium (Ga) and 45.0% fluorine (F). mass of 100g #of Moles in 100g of the compound Ga55.0% _____ ______ F45.0% ______ _______ c. Determine the molecular formula of a molecule having ...
*March 14, 2012*

**chemistry**

Which describes a source of radiation heat? A. Liquid or gas circulating to move the heat B. The sun sending out electromagnetic waves C. Two molecules colliding with each other D. Objects having kinetic energy because of their motion
*March 13, 2012*

**chemistry**

What must be known for the rate constant to be calculated from the rate law?
*March 10, 2012*

**chemistry**

MnO4–(aq) + Cl–(aq) Mn2+ + Cl2(g) (unbalanced) i. Write the reduction and oxidation half-reactions (without electrons). (.5 point) ii. Balance the equations for atoms (except O and H). (.5 point) iii. Balance the equations for atoms O and H using H2O and H+. (.5 ...
*March 10, 2012*

**chemistry**

MnO4–(aq) + Cl–(aq) Mn2+ + Cl2(g) (unbalanced) i. Write the reduction and oxidation half-reactions (without electrons). (.5 point) ii. Balance the equations for atoms (except O and H). (.5 point) iii. Balance the equations for atoms O and H using H2O and H+. (.5 ...
*March 10, 2012*

**chemistry- Energy in Matter**

Question 1: Kinetic Theory (7 points) a. Briefly state what the kinetic theory says. (2 points) b. Put the following molecules in order from least kinetic energy to greatest. (2 points) Cool water _____ Frozen water _____ Warm water _____ Water vapor _____ c. What temperature...
*March 9, 2012*

**chemistry**

A swimming-pool worker wants the pool's pH to be 7.2. She comes by to test the water and finds that the pH is 9.2. What should she do to correct this situation?
*March 9, 2012*

**chemistry**

What is the pOH of a solution with [OH-] = 2.0 10-2?
*March 9, 2012*

**chemistry this is confusing to me please help**

chemistry. but its done online and i dont have an teacher to sit down and explain the lessons to me.!!
*March 9, 2012*

**chemistry this is confusing to me please help**

1. List at least three things that your body strives to keep constant. Think about what aspects of your body overall, of one body organ, or of your blood stay nearly unchanged all the time. 2. Describe one way in which each of the items you listed in Part 1 could be at least ...
*March 9, 2012*

**Acid and Base Equilibrium**

What would happen to a weak base dissociation equilibrium if more products were added?
*March 8, 2012*

**chemistry**

What would happen if O2 were added to N2(g) + O2(g) 2NO(g) at equilibrium?
*March 8, 2012*