Wednesday

July 29, 2015

July 29, 2015

Total # Posts: 1,717

** math**

A type of bacteria doubles in number every 12 hours. After 2 days, there are 48 bacteria. How many bacteria were there at the beginning of the first day.
*November 13, 2013*

**matth**

you have a subscription to a music website that allows you to download 25 songs from the site each month. You are charged an additional fee after the first 25 songs are downloaded. After downloading 28 songs, you paid a total of $34.80. After downloading 30 songs, you paid a ...
*November 12, 2013*

**math**

you have a subscription to a music website that allows you to download 25 songs from the site each month. You are charged an additional fee after the first 25 songs are downloaded. After downloading 28 songs, you paid a total of $34.80. After downloading 30 songs, you paid a ...
*November 12, 2013*

**Calculus **

If each edge of a cube is increasing at the constant rate of 3 cm per sec how fast is the volume increasing when X, the length of an edge, is 10 cm long?
*November 8, 2013*

**Physics**

A girl coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 6.2 m/s. The coeﬃcient of kinetic friction between runners and snow is 0.059, and the girl and sled together weigh 736 N. The acceleration of gravity is 9.8 m/s^2 How far does ...
*November 5, 2013*

**physics**

Two long, parallel conductors, separated by 14.0 cm, carry currents in the same direction. The first wire carries current I1 = 6.00 A, and the second carries I2 = 8.00 A Assume the conductors lie in the plane of the page. (a) What is the magnitude of the magnetic field created...
*November 5, 2013*

**PHYSICS**

he magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.700 m and an outer radius of 1.30 m. The toroid has 800 turns of large-diameter wire, each of which carries a current of 12.0 kA. (a) Find the magnitude of the magnetic field...
*November 5, 2013*

**Physics**

The drawing shows two crates that are connected by a steel (Young's modulus 2.0 x 1011 N/m2) wire that passes over a pulley. The unstretched length of the wire is 1.8 m, and its cross-sectional area is 1.4 x 10-5 m2. The pulley is frictionless and massless. When the crates...
*October 26, 2013*

**Please help mrs Sue**

the differences between amino acids are in the? A: side groups B: hydrogen atoms
*October 22, 2013*

**HELP please somebody**

the differences between amino acids are in the? A: side groups B: hydrogen atoms
*October 22, 2013*

**science**

the differences between amino acids are in the? A: side groups B: hydrogen atoms
*October 22, 2013*

**science**

Which of the following is NOT a function of proteins? a: act as a main fuel for cells B: control chemical reactions in a cell
*October 22, 2013*

**science**

the differences between amino acids are in the? A: side groups B: hydrogen atoms
*October 22, 2013*

**science**

Which of the following is NOT a function of proteins? a: act as a main fuel for cells B: control chemical reactions in a cell
*October 22, 2013*

**science**

the differences between amino acids are in the? A: side groups B: hydrogen atoms
*October 22, 2013*

**science**

Which of the following is NOT a function of proteins? a: act as a main fuel for cells B: control chemical reactions in a cell
*October 22, 2013*

**math**

idk im lost
*October 17, 2013*

**math**

ok is it 75
*October 17, 2013*

**math**

a great dress is on the discount rack and you would love it for prom. the rack is marked 25%off the lowest price and you have a coupon for an extra 15% off. if the dress is marked $125, how much will you pay for it?
*October 17, 2013*

**math**

john is it 36.85
*October 17, 2013*

**math**

Computer software:$44 Discount:21% Sales tax:6%
*October 17, 2013*

**math**

thank you
*October 17, 2013*

**math**

idk i am really lost is it 77.56 idk can you please help me
*October 17, 2013*

**math**

Class ring:$89 Group discount:17% Sales tax:5% make sure to calculate the discount price first and then calculate the tax round to the nearest penny
*October 17, 2013*

**math**

how did you get 1.05
*October 17, 2013*

**math**

a bus ticket is $40 plus 5% tax.
*October 17, 2013*

**math**

You have a coupon for 25% off a $2 video rental. How much would you pay? can you please solve with steps.
*October 17, 2013*

**math**

im not sure can you please help me
*October 16, 2013*

**math**

mary wanted to buy a shirt that was originally $40 but is now 20% off. How much would mary save if she buys the shirt? is it $2.00
*October 16, 2013*

**math**

ok i get it i have another one and i will give the answer and can you check and see if it is right
*October 16, 2013*

**math**

so is it 4.50/75
*October 16, 2013*

**math**

4.50(75)
*October 16, 2013*

**math**

in a motel the room tax is $4.50 and the room rate is $75. write the tax asa percent of the room
*October 16, 2013*

**math**

the original bill was $27.20. You left $ 3.81 extra for the tip. What percentage of the original bill was he tip?
*October 16, 2013*

**math**

102% of 400 is what number
*October 16, 2013*

**math**

what percent of 80 is 12
*October 16, 2013*

**pigskin geography week 7**

i got steelers and the ravens not sure
*October 14, 2013*

**math**

Find the maturity value of the undiscounted promissory note that states that Phillip Esterey borrowed $4,000 for a period of 7 months with ordinary interest at 7%. The date of the note was December 17, 2008. The maturity date was July 17.
*October 13, 2013*

**Math**

A man makes a simple discount note with a face value of $2,300, a term of 140 days, and a 9% discount rate. Find the discount. (use the banker’s rule.)
*October 13, 2013*

**math**

0.5 :)
*October 13, 2013*

**math**

Convert to years, expressed in decimal form to the nearest hundredth. 6 months
*October 13, 2013*

**history**

ok thanks
*October 9, 2013*

**history**

i said C
*October 9, 2013*

**history**

How did early Muslim empires generally treat conquered people? A: they were allowed to become first-class citizens upon converting to islam B: they were forced to give up their religions and convert to islam C: their religions were tolerated, but restrictions and taxes were ...
*October 9, 2013*

**history**

how did early muslim empires generally treat conquered people?
*October 9, 2013*

**Science/ bio HELP PLEASE!!!!!!!**

Pick the correct answer to the following question. Write a brief statement explaining why each choice of answers is correct or incorrect. A person is hyperventilating. Their rapid rate of breathing causes a loss of carbon dioxide than usual from the body, resulting in a ...
*October 7, 2013*

**Physics**

An elevator has a combined mass of 1700kg. Find the tension of the supporting cable when the elevator, originally moving downward at 13 m/s, is brought to rest with constant acceleration in a distance of 44 m.
*October 5, 2013*

**college physics**

An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction and has a magnitude of 6.4N ; a second force has a magnitude of 5.0N and points in the negative y direction.
*September 29, 2013*

**Calculus**

Use integration by parts to evaluate the integral xsqrt(2x+6)dx.
*September 26, 2013*

**Calculus**

Evaluate the Integral (x^5sqrt(10+x^6))dx by making a u-substitution.
*September 26, 2013*

**Chemistry**

Thank you!
*September 25, 2013*

**Chemistry**

Combustion of a 0.1595 g of menthol (156 g/mol) produces .449 g of Carbon Dioxide and 0.184 g of Water. What is the formula of menthol? I am really confused as to where to start. I converted the Carbon Dioxide and Water to moles and got .102 mol for both of them but now I don...
*September 25, 2013*

**Geometry **

Line BD bisects angle ABC. Angle ABC= 9x. Angle ABD= 4x+13. Finds angle DBC
*September 23, 2013*

**math**

is -2.1 a rational number
*September 17, 2013*

**math**

What is the fraction as a percent 7/800? I divided 7 by 800 and got 0.00875 and moved the decimal two places to the right, would that be right .875% ?
*September 15, 2013*

**math**

Write the mixed number as a percent 6 ¾ Would it be 6(0.75) = 45% ?
*September 15, 2013*

**math**

disregard the last question 1.9% is correct :) thanks
*September 15, 2013*

**math**

1.9% that's what I got after moving the decimal point two times to the right...
*September 15, 2013*

**math**

so 19%?
*September 15, 2013*

**math**

Data collected from those who reported their credit card debt showed that the lowest average annual percentage rate on its credit cards was 0.019. Represent this as a percent. The lowest APR on its credit cars was __% ?
*September 15, 2013*

**math**

thanx so much Ms. Sue
*September 15, 2013*

**math**

and 0.43 as well as 2.88
*September 15, 2013*

**math**

How do I write this decimal, 0.44 as a percent?
*September 15, 2013*

**Macroeconomics**

Thnx
*September 14, 2013*

**Macroeconomics**

What is the household vs. the firm?
*September 14, 2013*

**Macroeconomics**

Thnx
*September 14, 2013*

**Macroeconomics**

What is the significance of consumer sovereignty?
*September 14, 2013*

**Chemistry please help**

An Ap student got a lab report back with "-4.5 % error" written in red on it. He had found the boiling point of an unknown liquid to be 45 C. What is the correct boiling point of his unknown liquid? I know first I would write -4.5 % error = |4.5-x|/x x 100 but I don...
*September 12, 2013*

**math**

you are going to open a certificate of deposit $500 for 3 years with 2% interest. another bank offers a CD in which you must deposit $250 for 4 years with 3% interest. Which CD will earn more interest.
*September 9, 2013*

**math**

you are responsible for buying supplies for an upcoming camping trip. you can buy packages of stew that just need water added and then are heated. Each package costs $4.95 and contains enough stew for 2 people. You need to buy enough packages so that you can have stew for 3 ...
*September 9, 2013*

**math**

you are responsible for buying supplies for an upcoming camping trip. you can buy packages of stew that just need water added and then are heated. Each package costs $4.95 and contains enough stew for 2 people. You need to buy enough packages so that you can have stew for 3 ...
*September 9, 2013*

**Math**

You installed a bookshelf on the wall to organize some of your books. The books that you absolutely want on the shelf weigh a total 6 3/4 pounds. The bookshelf can handle no more than 9 pounds. You plan on filling the rest of the shelf with your paperbacks that each weigh ...
*September 9, 2013*

**Physics**

I have really been struggling with this one and have come up with a wide variety of answers. Any help would be great: If the radius of a planet is larger than that of Earth by a factor of 8.25, how much bigger is the surface area of the planet than Earth’s?
*September 8, 2013*

**Physics**

I have really been struggling with this one and have come up with a wide variety of answers. Any help would be great: If the radius of a planet is larger than that of Earth by a factor of 8.25, how much bigger is the surface area of the planet than Earth’s?
*September 8, 2013*

**Algebra 1 **

William, a logistician, needs to route a freight train that is 20 feet at its tallest point and 10 feet at its widest point within 3 days. The most direct path includes a single-track tunnel that needs 24 hour notice prior to use. If the tunnel is roughly modeled by f(x)=-0.1x...
*September 6, 2013*

**chemistry**

An experiment requires 13.0\({\rm g}\) of cyclohexane, whose density at 25 \(^\circ {\rm C}\) is 0.7781 \({\rm g/mL}\). What volume of cyclohexane should be used?
*September 6, 2013*

**algebra 1**

I think not sure Rate of change = change of amount in account/change of amount in time 800-1050/2-9=-250/-7 negatives cancel =$35.71 However $35.71x7+800=1049.97 so does the problem ask to round?
*September 6, 2013*

**algebra**

you buy a storage rack that holds 40 cds. you have 27 cds. write an inequality that describes how many more cds you can hold. you buy 15 cds. will they all still fit?
*September 6, 2013*

**Geography**

That's a good answer and not only used in manufacturing but also used to serve the public.
*September 5, 2013*

**math(Ms.Sue)**

38/6=6.3 gallons in each bucket
*September 5, 2013*

**Algebra 1 urgent **

(a) The surface area of the prism shown is 314 square meters. Write an equation that u can solve to find the value of w. side a=wm b=8m and c=(w+4)m (on the picture) I'm guessing u use the formula surface area=2ab+2bc+2ac??? Well if so I need all that solved into y=ax*2+bx...
*September 5, 2013*

**Social Studies**

The guy is PLANING to buy the oven so he's probably already budgeted it.
*September 5, 2013*

**Social Studies**

Hhhmmm I'm not sure but d is a good answer because the oven has to fit well.
*September 5, 2013*

**Algebra 1 parabola's**

Thanks so much!!!
*September 5, 2013*

**current events health care reform**

From what I know (which is probably not much) when u get a new job they will either have health care plans that may be free or you will get a discounted price VS. buying u'r own health insurance that will come out of u'r pay check. If the job offers no health benefits ...
*September 5, 2013*

**Chemistry**

Thank you!
*August 19, 2013*

**Chemistry**

What's the difference between relative and percentage abundance? What's the difference between realtive and average atomic mass? Is there a difference?
*August 19, 2013*

**Math **

Does the equation y=x^2-x have y-axis, x-axis, or origin symmetry?
*August 11, 2013*

**english**

not glittering generality
*August 9, 2013*

**physics**

Elena my gurl wtf is L do you mean d (displacement) like real get it straight
*July 7, 2013*

**Business Math**

Universal Exporting has three warehouse employees: John Abner earns $422 per week, Anne Clark earns $510 per week, and Todd Corbin earns $695 per week. The company’s SUTA tax rate is 5.4%, and the FUTA rate is 6.2% minus the SUTA. As usual, these taxes are paid on the ...
*June 7, 2013*

**geometry**

The figures are similar. The ratio of the lengths of their corresponding sides is 45:25, or 9:5. Find the ratio of their perimeters and the ratio of their areas. The figures are not drawn to scale.
*June 6, 2013*

**social studies**

how does a society answer the three economic questions about the production and consumption of goods and services?
*May 27, 2013*

**social studies**

Ben's family purchased a dishwasher so that the family members could save time for more productive activities. what kind of production factor is this?
*May 27, 2013*

**Math**

3/4 - F = 1/3. What does F equal? ): Please help!
*May 22, 2013*

**College alegbra**

The population P of a city has been increasing at an annual rate of 1.4%. It's population was 173 thousand in 1992. A. Find a formula for P(t), where t is the year and P is in thousands. B. Estimate the population in 2010, to the nearest thousand. C. In what year did the ...
*May 12, 2013*

**College algebra**

The radioactive element has a half-life of about 28 years and sometimes contaminates the soil. After 47 years, what percentage of a sample of the elements remain?
*May 12, 2013*

**College algebra**

Use the properties of logs to write the expression as one log: 8log(base 5)4th square root of x minus 4log(base 5) x
*May 12, 2013*

**math**

You cut square corners from a piece of cardboard that has dimensions 32 cm by 40 cm. You then fold the cardboard to create a box with no lid. To the nearest centimeter, what are the dimensions of the box that will have the greatest volume?
*May 8, 2013*

**Math**

p+b less than or equal to 20 and 15*p+10*b is greater than or equal to 90
*May 6, 2013*