Thursday

February 11, 2016
Total # Posts: 266

**analtyic geometry**

a house is 40 feet wide and 60 feet long a lady wants to use 260 feet of fencing to fence an area behind her house. the back of the backyard is 60x+2x and one side is 200-4x divided by 2. the back yard is a rectangle shape
*December 9, 2015*

**calc**

Find the missing value: 1) log _____ = 1/2 Solve the equation, round to the thousandths place: 2) log8 - log(n-2) = 4log2 + log5
*December 4, 2015*

**Language arts**

Are you sure those are the right answers?
*December 1, 2015*

**world geography **

Why did the earliest settlers choose such a location for their dwellings?
*November 11, 2015*

**science**

Whats the answer??!!
*October 15, 2015*

**Language Arts**

Thanks!
*October 6, 2015*

**Language Arts**

I chose 3 on B because in my definition it said “too hasty” and hasty means with speed or urgent and- Oh. It’s not C It’s B now cause hasty means with speed and that leads to rash so it’s B.
*October 6, 2015*

**Language Arts**

Is is C because I read on the link that there is a comma in the coordinate adjectives and is Annika’s guess on 3 right?
*October 6, 2015*

**Language Arts**

I dont know if Annika’s 3rd guess is right but from your link I think 2 is D like she said
*October 6, 2015*

**Language Arts**

1. In the following sentence, identify the word that the adverb is modifying. The ballerina danced gracefully on the empty stage. A. ballerina B. danced** C. empty D. stage 2. Identify the sentence below that contains coordinate adjectives. A. She wore a dark green sweater. B...
*October 6, 2015*

**math**

How can making small groups help you estimate large numbers?
*September 15, 2015*

**Art**

Thank you for your help.
*April 14, 2015*

**Art**

In addition to skills in creating art, which type of knowledge is important for art therapists to have to successfully perform their jobs? A. knowledge of physical therapy. B. Knowledge of psychology. C. Knowledge of teaching strategies. D. Knowledge of art history Is the ...
*April 14, 2015*

**Art**

Sorry it's B
*April 14, 2015*

**Art**

Then the answer is C.
*April 14, 2015*

**Art**

In an effort to help a student understand the concept of shading, which teaching strategy could an educator use to help someone who learns best through hands-on activities? A. Explain shading techniques out loud. B. Write shading techniques on the board. C. Give time to ...
*April 14, 2015*

**Art**

The gold trim, rich colors, a plentiful lace on eighteenth-century European fashions communicated which value of Baroque culture? A. Simplicity B. Balance C. Extravagance D. Creativity Is the answer C? Thank you
*April 14, 2015*

**Art**

The placements of rocks in a Japanese garden is an example of which artistic principal that communicates the cultural value of embracing a lack of equality? A. Asymmetry B. Balance C. Symmetry D. Transformation Is the answer B? Thank you
*April 14, 2015*

**Art**

I had the exact same question.
*April 14, 2015*

**Art**

Thank you
*April 14, 2015*

**Math SO HARD :C**

Ah! This is so hard! From midnight to 6:00 am the temperature rose 8 degrees C. At 6:00 am the temperature was -20 degrees C. What was the temperature at midnight? It's supposed to involve integers...
*February 25, 2015*

**Math**

Ah! This is so hard! From midnight to 6:00 am the temperature rose 8 degrees C. At 6:00 am the temperature was -20 degrees C. What was the temperature at midnight? It's supposed to involve integers...
*February 25, 2015*

**Developing healthy eating habbits**

its seems For most athletes, it would be 30. is that correct?
*January 25, 2015*

**Developing healthy eating habbits**

It's generally recommended that athletes consume approximately _______ percent of their daily calories from fat. A. 30 B. 60 C. 10 D. 90
*January 25, 2015*

**Developing healthy eating habbits**

Thank you so much! thats the answer i had picked.
*January 25, 2015*

**Developing healthy eating habbits**

What is the best way to lose one pound? A. Reduce carbohydrate intake by 3,500 B. Reduce calorie intake by 3,500 C. Reduce carbohydrate intake by 7,000 D. Reduce calorie intake by 7,000
*January 25, 2015*

**Math**

Suppose th average rain fall in april was leas than THE average rain fall in may Write a possible average rain fall for april that includes a 4 in the hundreths place Express You answer using 2 differnt forma
*December 23, 2014*

**math**

Todd has a board that is 6 ft. 3in. He needs to cut it to 4 ft. 9 in. How much should he cut off?
*December 2, 2014*

**Ratio - proportion - unit rate**

$71.88
*November 21, 2014*

**Ratio - proportion - unit rate**

1 quart = 4 cups each person will drink 2 cups. Unit price $5.99 per 1 quart box We have 24 guests what is the answer?
*November 21, 2014*

**Developing healthy eating habbits**

Appetite is not linked to A. physiological hunger. B. the time of day. C. the aroma of food. D. the taste of food. B ?
*October 11, 2014*

**Math**

32 + 24=56 56-14= 42 42 is the answer?
*October 1, 2014*

**Math**

Write an integer to represent the final temperature. The day started out at 6am as 32 degrees rose 24 degrees by noon and dropped 14 degrees at 6pm.
*October 1, 2014*

**Chemistry**

How much heat will be released when 0.750 moles of carbon monoxide (CO) react in an excess of oxygen gas? 2CO(g) + O2(g) ¨ 2CO2(g) + 566 kJ
*September 15, 2014*

**Chemistry**

If there are 0.625 g of NaCl left in a beaker that originally contained 75.0 mL of saltwater, what must have been the molar concentration of the original solution? The molar mass of NaCl is 58.44 g/mol.
*September 11, 2014*

**math mental math**

shelley spent 17 min washing the dishes. she spent 38 min cleaning her room. explain how you can use mental math to find how long shelley spent on the two tasks?
*August 22, 2014*

**Chemistry**

What kind of reaction does it cause though?precipitate reaction, released gas reaction, or no reaction. you answered yes, no, yes but didn't explain what reaction it is.
*July 28, 2014*

**Chemistry**

Will the following reactions mixed together cause a precipitate reaction, released gas reaction, or no reaction. Ba(NO3)2 mixed with NaCl Ba(NO3)2 mixed with HCl Ba(NO3)2 mixed with Na2CO3 Ba(NO3)2 mixed withNa3SO4 also Ba(NO3)2 is soluble and a solid and HCl is a gas. Is ...
*July 28, 2014*

**CHEMISTRY (IODINE VALUE-continuation)**

y question is about Determination of Iodine Value in Fats & Oils experiment. I can't seem to get the right IV for coconut oil (Iv = 7-11 range). I followed the procedure used by American Oil Chemists Society, but still I'm getting an IV value of around 1. The volume of...
*July 28, 2014*

**CHEMISTRY (PLEASE HELP)**

My question is about Determination of Iodine Value in Fats & Oils experiment. I can't seem to get the right IV for coconut oil (Iv = 7-11 range). I followed the procedure used by American Oil Chemists Society, but still I'm getting an IV value of around 1. The volume ...
*July 22, 2014*

**Math**

Two concentric circles have radii of 24cm and 26cm. What is the length of the chord that is tangent to the inner circle? I don't understand the tangent, like where do I draw the line?
*May 30, 2014*

**Physics**

A bird lands on a bare copper wire carrying a current of 27 A. The wire is 8 gauge, which means that its cross-sectional area is 0.13 cm2. (a) Find the difference in potential between the bird's feet, assuming they are separated by a distance of 7.2 cm.
*May 21, 2014*

**Physcis**

A bird lands on a bare copper wire carrying a current of 27 A. The wire is 8 gauge, which means that its cross-sectional area is 0.13 cm2. (a) Find the difference in potential between the bird's feet, assuming they are separated by a distance of 7.2 cm.
*May 21, 2014*

**Math**

When an engineer inspects a pipeline she notices a high water mark. How much space is there between the high water level and the top of the pipe, to the nearest hundredth. The diameter of the pipe is 1.2m and the horiztonal distance across the surface of the water is 80 cm.
*May 6, 2014*

**Algebra**

A boy was sent with $2.10 to buy oranges. He found the price 3 cents higher per dozen than he had expected to pay, and so he bought 6 fewer oranges than he had intended to buy and received 1 cent in change. How much did he pay for a dozen oranges?
*April 17, 2014*

**science**

To increase friction
*April 15, 2014*

**Algebra**

A man drove his automobile to New York, a distance of 550 miles, at a certain average rate. He returned from New York at the rate of 11 mph more. The entire trip required 22.5 hours. What were his rates returning and going?
*April 15, 2014*

**Algebra Word Problem**

Thank you so much!
*April 11, 2014*

**Algebra Word Problem**

A number of men subscribed a certain amount to make up a deficit of $100 but 5 men failed to pay and thus increased the share of the others by $1 each. Find the amount that each man paid.
*April 11, 2014*

**Algebra**

The time required for a trip 108 miles downstream on a steamer is 3 hours less than the time required for the upstream trip. A boat whose rate is 6 miles per hour less than that of the steamer required 9 hours more for the upstream trip than for the downstream trip. Find the ...
*April 11, 2014*

**math**

????
*April 9, 2014*

**Eric**

I think they are.
*March 18, 2014*

**Economics**

Suppose you are the manager of a California winery. How would you expect the following events to affect the market equilibrium price you receive for a bottle of wine? Please state the shift (leftward or rightward) of demand or supply. a. The price of comparable French wines ...
*February 8, 2014*

**Chemistry**

To neutralize a 0.5192 g organic acid, 44.0 mL NaOH solution (1.00 ml ~ 1.12 mL HCl ~ 0.0100 g CaCO3) is required. What is the equivalent weight of the organic acid?
*January 21, 2014*

**Chemistry**

What will be the volume of concentrated H2SO4 that must be added to 155 mL of 0.1996 N H2SO4 in a 500 mL volumetric flask so that the resulting solution will be 6.5210 M? pls. explain.
*January 21, 2014*

**Chemistry**

Calculate the volume of 2.503 N HNO3 added to 100 mL of HCl in order to prepare 1.1251 N acid solution from the following data: 58.96 mL NaOH will neutralize 2.521g of potassium tetroxalate and 45.57 mL of HCl will neutralize 53.0 mL of the NaOH solution.
*January 21, 2014*

**Chemistry**

How to know their mass? Is is their molecular mass?
*January 20, 2014*

**Chemistry**

Calculate the % Na2CO3 and % BaCO3 in a 0.2005g sample which requires 28.0mL of 0.9990 N acid for complete neutralization.
*January 20, 2014*

**Chemistry**

To what volume must 1580mL of 0.2005 N solution be diluted so that the resulting solution will be 0.1899 M? How much water will be needed in the dilution?
*January 20, 2014*

**Chemistry**

A 0.2299 N acid is prepared by mixing 100 ml of 0.1234 N H2SO4 and 0.3200 N HCl. How much HCl is needed in the preparation of the solution?
*January 19, 2014*

**Algebra**

If 9876^2=97,535,376 Find the value of 9877^2 and (9874)(9878) without using a calculator
*November 20, 2013*

**Chemistry**

The dipole moment (μ) of HBr (a polar covalent molecule) is 0.851D (debye), and its percent ionic character is 12.6% . Estimate the bond length of the H−Br bond in picometers.
*November 18, 2013*

**Chemistry**

The dipole moment (μ) of HBr (a polar covalent molecule) is 0.851D (debye), and its percent ionic character is 12.6% . Estimate the bond length of the H−Br bond in picometers.
*November 18, 2013*

**9th algebra**

the sum of the digits of a two place fraction is 9. When its digits are reversed, the new fraction exceeds the original by 0.09. Find the original fraction.
*November 10, 2013*

**Algebra**

Oh yes! I figured it out by myself.
*November 7, 2013*

**Algebra**

Thanks a lot!
*November 7, 2013*

**Algebra**

1.The ratio of nickels to dimes to quarters in 3 : 8 : 1. If all the coins were dimes, the amount of money would be the same. Show that there are infinitely many solutions to this problem. 2.A grocer wants to make a mixture of three dried fruits. He decides that the ratio of ...
*November 7, 2013*

**9th algebra**

1.Jeff can weed the garden in 4 h. His wife takes the same amount of time. After they worked for 1 hr, their son helped them finish in 1/2 h. H long would it have taken Rory by himself to weed the garden?
*November 7, 2013*

**Finance**

a. If upon retirement in 20 years Simon plans to invest $400,000 in a fund that earns 5%, what is the maximum annual withdrawal he can make over the following 15 years?
*October 23, 2013*

**Grammer Please hurry please**

b a c b a b a c
*August 27, 2013*

**physics**

The brakes of a truck cause it to slow down by applying a retarding force of 2350 N to the truck over a distance of 817 m. What is the work done by this force on the truck?
*July 8, 2013*

**AP Chemistry**

An unknown metal M forms a soluble compound, M(NO3)2. A solution of M(NO3)2 is electrolyzed. When a constant current of 2.5 amperes is applied for 35 minutes, 3.06 grams of the metal M is deposited. Calculate the molar mass of M and identify the metal.
*April 8, 2013*

**Chemistry**

A cell has a standard emf of +0.177 V at 298 K. What is the value of the equilibrium constant for the cell reaction a) if n=1? b) if n=2?
*April 8, 2013*

**3rd grade**

Well you have 30 cents in dimes. a quarter is 25 cents so you have five cents extra. you can ask for change for one dime or trade with someone your dime for two nickels
*February 26, 2013*

**3rd grade math**

regroup the ten ones as 1 ten again
*February 26, 2013*

**Chemistry**

The calculated Ka in one of my previous comments is from a different question- it's not related to this problem.
*February 25, 2013*

**Chemistry**

...H2A->...H+..+..HA- ...x.......0......0 -.00708..+.00708..+.00708 x-.00708...00708...00708 K1=.017=(.00708)^2/x-.00708 x=.01 The acid is .01M. There are 250 mL. There are .205g of acid. .205g=.0025mol .205/.0025=82
*February 25, 2013*

**Chemistry**

Yes, the intrepid hero post was mine- these are both extra credit problems from our class and I'm having some trouble with this unit. For that one the Ka I came up with was 2.22*10^-5. As for this problem, your logic makes sense but I'm unsure how to calculate (A^2-) ...
*February 25, 2013*

**Chemistry**

I've calculated the molar mass as 82g/mol, but I can't figure out how to get the dissociation constant.
*February 25, 2013*

**Chemistry**

A 205 mg sample of a diprotic acid is dissolved in enough water to make 250.0 ml of solution. The pH of this solution is 2.15. A saturated solution of calcium hydroxide (Ksp= 1.3 x 10-6) is prepared by adding excess calcium hydroxide to water and then removing the undissolved ...
*February 25, 2013*

**Algebra**

First, find the greatest common factor of the two terms- in this case, 21. Then divide each term by the GCF. 42q/21=2q and -21/21=-1 So, 21(2q-1)
*February 24, 2013*

**Biology**

Most likely the one with the most descendants. Evolutionary science generally deals with the passing on of genes, and that frog would have reproduced the most and would therefore have been the most successful.
*February 24, 2013*

**Biology**

The mice would be half heterozygous for black, and half white.
*February 24, 2013*

**Grammar...**

Sorry, our answers posted at the same time. I didn't mean to seem excessively insistent.
*February 24, 2013*

**Grammar...**

I think that the apostrophe would be redundant
*February 24, 2013*

**Grammar...**

The "that of" makes the sister possessive- no need to be possessive twice.
*February 24, 2013*

**Grammar...**

No- It would be: Her coat is different from that of her sister.
*February 24, 2013*

**Chemistry**

It's actually 4.5*10^-6. 5=pKa+log(10/22.22)
*February 24, 2013*

**Chemistry**

I plugged those numbers into the HH equation and came up with 2.22*10^-5 for the Ka. Does that sound right?
*February 24, 2013*

**Chemistry**

At the first point where he stopped and measured the pH, the H+ ion concentration is 1*10^-5 and the OH- ion concentration is 1*10^-9. This is as far as I've gotten, I can't figure out what to do with this information.
*February 24, 2013*

**Chemistry**

A very old and tired , grey haired AP Chem instructor wanted to determine the Ka of an unlabelled monoprotic acid in his stockroom. He dissolved an unknown amount of acid in an unknown amount of water and proceeded to titrate the sample with a solution of NaOH of unknown ...
*February 24, 2013*

**Algebra**

To find the y-intercept, plug in 0 for y and solve for x. 0=2x+2 2x=-2 x=-1 (0,-1) To find the x-intercept, plug in 0 for x and solve for y. y=2(0)+2 y=2 (2,0)
*February 24, 2013*

**Physics2**

"The heat engine uses 1.00x10^-2 mol of a diatomic gas as the working substance. Determine the temperatures at the 3 points." From 1-2, it's an adiabatic process and the constants are (P)(V^(7/5)) or (T)(V^(2/5)). From 2-3, it's an isobaric process with V/T ...
*February 21, 2013*

**Physics**

Draw an open circuit that consists of 2 sets of 2 cells connected in series, connected in [arallel with each other. Add a variable resitance R1 in series with a set of 3 light bulbs r2, r3, r4 in parallel with each other. Insert an ammeter and a voltmeter in teh circuit
*January 27, 2013*

**Algebra**

x+y+z=2 4x+5y+2=12 2x=4 solve using substitution
*January 17, 2013*

**math**

valerie earns $25 a day plus $3 for each dog she washes. make a function table to show the relationship between the number of dogs she washed d and the total amount earned t in one day. write an equation to represent the situation.
*January 15, 2013*

**7th grade math Ms. Sue please check**

im stuck on 9
*November 14, 2012*

**Physics**

what is a planes velocity if ithas anair speed of 18 and there is a 30 km/h wind blowing south
*November 9, 2012*

**Social Studies**

i agree that b is right cause A and c would not work
*November 9, 2012*

**physics**

What is the direction of a person that walks 3.0-km North and 4.0-km East?
*November 8, 2012*