Wednesday

November 25, 2015
Total # Posts: 645

**Chemistry**

If your aspirin sample has an absorbance of 0.500 in a 1.00 cm cell, what will be its absorbance in a 1.50 cm cell. What would be the percent change in the absorbance if you used the larger cell and didn’t factor in the change in path length? The equation is y = 0.148X-0....
*October 27, 2015*

**chemistry**

What mass of water can be heated from 45C to 88C with 28 kj?
*October 23, 2015*

**Math **

a cell phone company offers the following plan: monthly charge (which includes 500 minutes) for $40 and a charge for additional minutes will be 5 cents a minute. write a piecewise function function putting x&y terms that can be used in any # or minutes. I am coming up with y=....
*October 17, 2015*

**AP Physics**

Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The hanging block has a mass of 16 kg and the one on the plane has a mass of 8 kg. The coefficient ...
*October 15, 2015*

**Chemistry**

Describe in words how you would make a 1.00 M solution of HCl from a 5.00 M solution of HCl. Completely stumped here. Any help?
*September 26, 2015*

**math**

Laura drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 6 hours. When Laura drove home, there was no traffic and the trip only took 4 hours. If her average rate was 22 miles per hour faster on the trip home, how far away does ...
*September 23, 2015*

**Language Arts**

lee is wrong
*April 23, 2015*

**history**

is it a?
*April 22, 2015*

**history**

17. Under Franklin Roosevelt's Good Neighbor policy, A. the collective security among the nations of the Western Hemisphere declined. B. American commerce with Latin America increased, but only slightly. C. the Platt Amendment was rescinded. D. Cordell Hull favored ...
*April 22, 2015*

**Math**

There are 47 students in the marching band. There are 5 students in te first row, and the rest are in equal rows of 6. How many students are in each of the 6 rows?
*March 22, 2015*

**math**

Divide the 3 plants by 2 and you will get 44rows
*February 3, 2015*

**history**

Which statements describe the Persian Empire? Choose all answers that are correct. A. Darius I conquered all of Greece after defeating Athens at the Battle of Marathon. B. The Persians looked down on the culture and knowledge of the peoples they conquered. C. Cyrus oversaw a ...
*January 27, 2015*

**Physics**

We always hear people say “You should conserve energy! Think of what will happen to the next generation if all our energy resources get depleted!” Is this in contradiction with the Law of Conservation of Energy which states that the total amount of energy in the ...
*December 2, 2014*

**algebra**

Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
*November 27, 2014*

**Algebra**

Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?
*November 27, 2014*

**Algebra**

Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of $3.60. How many coins of each kind does he have?
*November 27, 2014*

**Algebra**

Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of $3.60. How many coins of each kind does he have?
*November 26, 2014*

**Algebra**

Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?
*November 26, 2014*

**algebra**

Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
*November 26, 2014*

**Math**

A room measures 450cm by 350cm. Find the side if the largest square tile that can be used to tile without cutting
*November 20, 2014*

**Pre Calculus**

The logistic growth function P(t)= 160/ 1 + 9e^-0.165t describes the population of the endangered species of elk "t" years after they were introduced into the habitat. a. How many elk were initially introduced into the habitat? b. How many elk are expected after 6 ...
*November 20, 2014*

**Pre Calculus**

If a 25 mg sample of radioactive material decays to 18.4 mg in 5 years, how long will it take the sample to decay to 20.5 mg?
*November 20, 2014*

**Pre Calculus**

You invest $4500 into an account that earns 6.5% interest compounded monthly. How long will it take for the account to double in its value?
*November 20, 2014*

**Pre Calculus**

The population of a city is 127,000 and is decreasing by 2.4% each year. a. What will the population be in 10 years? b. Find when the population will be 95,000
*November 20, 2014*

**Chemistry**

Sort these species into isoelectronic groups. It doesn't matter which group goes in which box, so long as the correct species are grouped. Ne Mg2+ S2- Ti4+ K+ He Li+ Be2+ N3-
*November 6, 2014*

**Math**

Chris has a square garden with an area of 38.4 m squared. He decreases the length of each side by 1.7 m to make a smaller garden. What is the perimeter of the smaller garden. {Hint find the length of each side of the bigger garden first, then decrease the length, then find the...
*November 5, 2014*

**Physics**

1. A body was dropped from a building 10-m high. Its kinetic energy before reaching the ground is 980 J. What is the mass of the body? 2. A 1.0-kg block slides down a rough inclined plane whose height is 1.0 m. At the bottom the block has a speed of 4.0 m/s. Is mechanical ...
*October 21, 2014*

**Math**

the outside and the inside
*October 19, 2014*

**Math**

Bill is painting his basement floor. If one can of paint will cover 4.5m squared, how many cans of paint will he need? Measurements: 13.5m, 1.5m, 6m, 18m, 13.5m,1.5m show work !It is a rectangle layout!
*October 19, 2014*

**Math**

Bill is painting his basement floor. If one can of paint will cover 4.5m squared, how many cans of paint will he need? Measurements: 13.5m, 1.5m, 6m, 18m, 13.5m,1.5m show work
*October 19, 2014*

**Chemistry**

Determine the number of grams of oxygen in 13 grams of calcium acetate.
*October 19, 2014*

**Math**

Which of these two sequences form a geometric sequence: 2x, 4x-2, 6x-4, ..... OR x+1, 2x+2, 5x+1, .....? Find the value/s of x and what is the sequenced formed? My answer is neither is a GP since they don't have a common ratio. If this is the case, is there still any way ...
*October 18, 2014*

**Math**

For number 2, That is what I figured. Neither is a GP since they don't have a common ratio. Is there any way to still get the x? Cause that is what is in the question, find the value of x. Thanks.
*October 17, 2014*

**Math**

1. Find the sum of the first five terms of the sequence 2/3, 2, 6, 18, ..... My answer is 242. Am I right? 2. Which of these two sequences form a geometric sequence: 2x, 4x-2, 6x-4, ..... OR x+1, 2x+2, 5x+1, .....? Find the value/s of x and what is the sequenced formed? I ...
*October 17, 2014*

**Math**

1. Find the sum of the sequence: 32, -16, 8, -4, 2, .... My answer is 64/3. Am I correct?
*October 17, 2014*

**Math**

What is the sum of the geometric sequence 4/3, 2/3, 1/3, 1/6, ....? I got 8/3, am I right?
*October 16, 2014*

**Math**

What is the value of x in the sequence x+1, 2x+2, 5x+1, .....
*October 16, 2014*

**Math**

Is this a geometric sequence? x + 1, 2x + 2, 5x + 1 .....
*October 16, 2014*

**Math**

1. Find the sum of the first five terms of the sequence 2/3, 2, 6, 18, ..... 2. Is this a geometric sequence? 2x, (4x-2), (6x-4), ..... 3. Show the equivalent values of the decimal 0.7575757575..... in fraction form. 4. What is the sum of the geometric sequence 4/3, 2/3, 1/3, ...
*October 16, 2014*

**Math**

Which of these two form a geometric sequence? 1. 2x, 4x - 2, 6x - 4 ..... 2. x + 1, 2x + 2, 5x + 1 .....
*October 15, 2014*

**Chemistry**

I figured it out
*October 14, 2014*

**Chemistry**

I have that equation but I don't know how to use it.
*October 14, 2014*

**Chemistry**

A hot air balloon is filled with 1.31 × 106 L of an ideal gas on a cool morning (11 °C). The air is heated to 129 °C. What is the volume of the air in the balloon after it is heated? Assume that none of the gas escapes from the balloon.
*October 14, 2014*

**Math**

ABCDEF is a regular hexagon. If BA and CD are extended until they intersect, what is the measure of the angle formed?
*October 14, 2014*

**Math**

Are the statements Always, Sometimes or Never. Please explain why. Thanks. 1. An equilateral polygon is regular. 2. The greater the number of sides of a regular polygon, the smaller the measure of any of its exterior angle. 3. The sum of the measures of the interior angles of ...
*October 14, 2014*

**Math**

1. The measure of an interior angle of a regular polygon is 20 more than thrice the measure of its adjacent exterior angle. Find the number of sides of the polygon and its total number of diagonals. 2. Find the sum and difference between the sum of the measures of the interior...
*October 14, 2014*

**Math**

1. Find the common ratio and 9th term of the sequence 6, -3, 3/2, -3/4, ..... 2. Find the 7th term of the sequence: 2, 6, 18, 54, ..... 3. Find the 11th term of the sequence 1, -1/2, 1/4, -1/8, .....
*October 8, 2014*

**Math**

1. Find the 11th term of the geometric sequence 64, -32, 16, -8, … . 2. Find the 1st term of a geometric sequence with a 10th term -1024 and r = -2. 3. Find the sum of each infinite geometric series, if possible. a. 10 + 2 + 2/5 + ..... b. 1.2 – 2.4 + 4.8 – 9.6...
*October 7, 2014*

**Science**

Describe the changing definitions of an element?
*October 1, 2014*

**Science**

what are the component parts of modern fireworks? what does each part do?
*September 18, 2014*

**Science**

What Type of Simple Chemical Reaction Occurs in Fireworks?
*September 18, 2014*

**Science**

1.what chemical properties of nail polish remover makes it dangerous? 2.Surgeons sometimes use metal plates and screws to hold broken bones together. What chemical properties do you think the metal should have?
*September 17, 2014*

**Science**

what chemical properties of nail polish remover makes it useful?
*September 17, 2014*

**Science**

Classify each as a physical characteristic or chemical property. -wood burns -clay is brown -steel wool rusts -a paper clip is 3cm long
*September 17, 2014*

**Music**

I know this is probably a dumb question but I have to write a report on a music artist and I like rock music so I want to know what artist should I choose? Marilyn Manson or Rob zombie? And can someone tell me some stuff about them?
*September 17, 2014*

**Social Studies Help please Mrs. Sue**

Aww ok thanks for helping though.
*September 17, 2014*

**Math**

Ashley runs around the following track. How many times must she run around the track in order to run a total distance of 4 km? measurements: 100m and 60m
*September 16, 2014*

**science**

A drinking glass at a crime scene contains a clear colorless liquid that may be water or alcohol. As the investigator, you know that the densities of alcohol, water, and ice are 0.79g/mL, and 0.92/mL. Design a simple method to determine the identity of the mystery liquid. ...
*September 16, 2014*

**Science**

aluminum has a density of 2.7g/cm3 while copper has a density of 8.96g/cm3. Which metal would you choose to build a model airplane? why?
*September 16, 2014*

**Science**

the density of liquid mercury is 13.53 g/cm3.The density of a solid copper is 8.96 g cm3. would you expect a piece of copper to sink or float when placed in a container of liquid mercury?
*September 16, 2014*

**English**

I need help diagramming the sentence "There were ten visitors here yesterday", especially the word there.
*September 9, 2014*

**math problem solving**

Eduardo thinks of a number between 1 and 20 that has exactly 5 factors. What number is he thinking of?
*September 9, 2014*

**algebra**

mary wants to put square tiles on the kitchen floor. The tile she has selected is 12 inches on each side and comes in boxs of20 tiles for $54 per box. Her kitchen is 15 feet 8 inches log and 5 feet 9 inches wide. How many boxes of tile will she need and what will be theprice ...
*September 2, 2014*

**Physics**

If a car is accelerating, is the car's velocity constant. Please sentence explanation.
*August 26, 2014*

**Physics**

Ok so here is another question. During a trip in the car , when will the car be accelerating positively and when will the car be accelerating negatively. Sentence explanation please.
*August 26, 2014*

**Physics**

Thanks for your help.
*August 26, 2014*

**Physics**

If toy rocket rises vertically and then falls back to the ground, what changes occur in the rocket's velocity and acceleration. Please give a sentence explanation not a formula
*August 26, 2014*

**Algerbra 2**

Arithmetic sequence 4,7,10,13 How do you do it.
*August 22, 2014*

**english**

Which of the following words cannot be used as an adverb? A. Tally B. Deeply C. Widely D. Too Please Help!
*August 19, 2014*

**english**

How would you form a superlative for the adverb widely? A. Add the word less B. Remove the “ly” C. Add the word most D. Add the suffix “est” I think it's D. Is that correct?
*August 19, 2014*

**math**

add all of the numbers up and divide what you get by 6.
*August 19, 2014*

**math**

add up all of the numbers and divide what you get by 6.
*August 19, 2014*

**english**

Thank you again, Ms.Sue
*August 19, 2014*

**english**

Since I read that, I'm thinking its sentence 3. Is that correct?
*August 19, 2014*

**english**

Is that correct?
*August 19, 2014*

**english**

I decided to go with 'C'
*August 19, 2014*

**english**

Thank you!
*August 19, 2014*

**english**

Which one of the following sentences correctly uses a comparative adjective? A. Of the three girls, Janet is the better speaker. B. Alicia is a gooder swimmer than Marilynn. C. George has a bigger appetite than Harry. D. This is the worse picture I've ever seen It's ...
*August 19, 2014*

**english**

Which one of the following sentences correctly uses a comparative adjective? A. Of the three girls, Janet is the better speaker. B. Alicia is a gooder swimmer than Marilynn. C. George has a bigger appetite than Harry. D. This is the worse picture I've ever seen I think it...
*August 19, 2014*

**english**

I think it's A, am I correct?
*August 19, 2014*

**english**

Which one of the following sentences correctly uses a comparative adjective? A. Of the three girls, Janet is the better speaker. B. Alicia is a gooder swimmer than Marilynn. C. George has a bigger appetite than Harry. D. This is the worse picture I've ever seen
*August 19, 2014*

**English**

What mark of punctuation is most closely associated with interjections?
*August 19, 2014*

**Finance**

One of Wildcat's competitors has a total assets turnover equal to 2.0, a return on equity equal to 15%, and a debt ratio equal to 60%. The company is financed with debt and common stock. What is this company's Return on Assets and Net Profit Margin?
*June 16, 2014*

**Physics question help/ check my answers**

The middle two question please check my answers and tell me if I am correct or if there is something I am missing. The first and the last question I need help to understand and complete it. Thank you in advance!!! 1. What is the electric force between a +2 µC point ...
*May 8, 2014*

**reading- suffix**

What does the suffix ant mean in the words servant, merchant, band assistant? A. State of B. One who C. Inclined to D. Lower than
*May 5, 2014*

**science**

Please help
*May 5, 2014*

**science**

Which experimental approach would be the most effective and easiest to clearly determine the evolutionary relationship between these 2 organisms? The 2 organisms are a starfish and snake. A. Sequence the same gene in both species to compare their similarity. B. Dissect ...
*May 5, 2014*

**math**

Marco jumped rope for 20 more seconds than Troy. The letter r represents the number of minutes that Troy jumped rope. Which expression shows the number of minutes that Marco jumped rope?
*May 5, 2014*

**History**

:( Help
*May 5, 2014*

**History**

r u there?
*May 5, 2014*

**History**

Whoops I ment a and c
*May 5, 2014*

**History**

I think b and c
*May 5, 2014*

**History**

HURRY PLZ!
*May 5, 2014*

**History**

Mark the statement if it describes Roman society during the time of Cincinnatus. A. Rome’s government was based on law in which many people had a voice. B. Rome was being surrounded and threatened by outside forces. C. People in Rome admired those who used their ...
*May 5, 2014*

**maths**

Set up two equations. 2L + 2W = 18 L = 2W - 3 Now, substitute L into the first equation to find W. 2L + 2W = 18 2(2W - 3) + 2W = 18 4W - 6 + 2W = 18 6W - 6 = 18 6W = 24 W = 4 cm Next, put in the value of W into any of the equations to get L. L = 2W - 3 L = 2(4) - 3 L = 8 - 3 L...
*May 5, 2014*

**math**

Pay Yourself First I beleive
*May 5, 2014*

**math**

Jose invests 3250 dollars at 6% interest compounded annually. What will be the balance in the account after 3.5 years? A. 3932.50 dollars B. 3985.23 dollars C. 4752 dollars D. 5200 dollars
*May 1, 2014*

**Math**

What are the proceeds for a discounted loan for $300 repaid in 8 months at 17%?
*April 30, 2014*

**Math**

Cathy makes a deposit of 4500 dollars into an account that pays 5.8 percent simple interest. How much is in the account 8 years later?
*April 30, 2014*