Friday

July 31, 2015

July 31, 2015

Total # Posts: 121

**chemistry**

How many grams of sucrose are in 1.5kg of a 10.5% (by mass) solution of sucrose?
*July 15, 2015*

**algebra**

an investor has $30,000 to invest. if part is invested at 5% and the rest at 9%, how much will be invested at 5% to yield 8% on the total amount? use I=PRT
*June 23, 2015*

**Find the GCF of the monomials**

3xy, 6xz, and 9yxz is ___________________________
*June 4, 2015*

**Math**

Are you asking what is addition and subtraction? Addition and Subtraction (French: Tom Whisky ou L'illusioniste toqué) is a 1900 French short silent film directed by Georges Méliès. It was released by Méliès's Star Film Company and is...
*June 4, 2015*

**Electronics, Physics, Math**

I did it for the zillionth time and came up with 5.68V... Is that correct?
*May 12, 2015*

**Electronics, Physics, Math**

5. A circuit is supplied with 30 VDC and contains three resistors connected in series. The value or R1 is 80Ω, the value of R2 is 1,000Ω , and the value of R3 is 4,200Ω . What is the voltage drop across R2? A. 5.68 V B. 2.14 V C. 4.61 V D. 6.82 V I keep coming ...
*May 12, 2015*

**Electronics, Physics**

The answer was 14.615Ω lol, the 830 was for another problem I was having difficulty with! I got both right though, so thank you! I just got mixed up here.
*May 12, 2015*

**Electronics, Physics**

Never mind! Answer is 830Ω Thank you!
*May 12, 2015*

**Electronics, Physics**

I think I am just dumb. Lol, I came up with 204.7 which is too big and not an option. What am I doing wrong. I know I'm doing something wrong... :(
*May 12, 2015*

**Electronics, Physics **

In a circuit, a 10 Ω resistor is connected in series to a parallel group containing a 60 Ω resistor and a 5 Ω resistor. What is the total resistance in this circuit? A formula and explanation would be great!
*May 12, 2015*

**Algebra**

x^4-4x^2-45=0
*April 22, 2015*

**Algebra**

I'm sorry... (16x)- 8square roots of x = 35
*April 22, 2015*

**Algebra**

Solve the following equation. 16x-8square roots of x = 35
*April 22, 2015*

**Algebra**

Use the properties of exponents to simplify as much as possible (8a^3b^6)^(1/3)/(16a^8b^-4)^(1/4)
*April 18, 2015*

**Algebra**

What is the square root of 49a^4+686a^3+2401a^2 Do NOT assume that a represents a positive number
*April 6, 2015*

**Algebra**

(5x^(1/3)+1)(25x^(2/3)-5x^(1/3)+1)
*April 6, 2015*

**Algebra**

(t^(1/2)+2)^2
*April 6, 2015*

**Algebra**

Thanks and thanks for the help on how to write it out on the computer.
*April 1, 2015*

**Algebra**

Simplify the following into a single expression x^3/(x^2-1)^5/8 + 2x(x^2-1)^3/8
*April 1, 2015*

**Algebra**

No, that's not it either. The directions say to factor as if it were a trinomial. I'm probably typing the actual problem wrong. I'll try to use words in the problem and see if that helps. 9t with the exponent of 1/1 minus 25
*April 1, 2015*

**Algebra**

The computer says that 9t-25 isn't correct. Any thoughts?
*April 1, 2015*

**Algebra**

I know most of the answer is (3t+5)(3t-5). What I don't understand is the exponent of 1/1. How would that be factored in the equation?
*April 1, 2015*

**Algebra**

hmmm...that's how it's worded. Does this help? (9t^1/1)-25
*April 1, 2015*

**Algebra**

Please help
*April 1, 2015*

**Algebra**

Factor the following as if it were a trinomial 9t^1/1-25
*April 1, 2015*

**Algebra**

Use the properties of exponents to simplify (r^-3s^1/3)^6/(r^7s^3/2)
*March 30, 2015*

**Algebra**

Use the properties of exponents to simplify the following as much as possible. Assume all bases are positive. And, yes, the way you wrote it. I forgot the parenthesis on the bottom.
*March 30, 2015*

**Algebra**

(r^-3s^1/3)^6/r^7s^3/2
*March 30, 2015*

**Algebra**

f(x) = -2x^2 + 5x -1 Find f(x) - f(a)/x-a
*March 27, 2015*

**Algebra**

A person riding a Ferris wheel with a diameter of 64 feet travels once around the wheel in 25 seconds. What is the average speed of the rider in miles per hour? (Round your answer to one decimal place.)
*March 27, 2015*

**science**

If a kestrel eats a mouse that eats grass, the kestrel is a
*January 28, 2015*

**Probabilitys Math**

Hmmm, doesnt give number of players, its a question from the instructor, can anyone figure this out? its a probabilities question, not even sure how to approach it, anyone?
*November 16, 2014*

**Probabilitys Math**

Doesnt give it.
*November 16, 2014*

**Probabilitys Math**

After the last game of the season a football team goes out for ice cream. Each player orders a triple cup of ice cream with a topping.Each order has 3 diffrent flavors, order doesnt matter.The shop has 7 diffrent flavors and 2 toppings to choose from iss it possible for each ...
*November 16, 2014*

**Science **

Cottage roof timber from Ireland. Date: 906 ± 35 years. What is the BP Date?
*October 10, 2014*

**Science **

Cottage roof timber from Ireland. Date: 906 ± 35 years. What is the BP Date?
*October 8, 2014*

**Science **

Pleistocene mammoth bone from La Brea Tar Pits of Los Angeles, California. Age: 12,200 ± 35 years. What the BP Date?
*October 8, 2014*

**math**

43%
*October 6, 2014*

**Chenistry**

Be able to calculate the pH of a solution prepared by mixing 50.0mL of 0.200M NaH2PO4 (pKa2=7.20) with 50.0mL of 0.120M NaOH. I did work out a pH of 7.38 but I am not sure if i need to take into account any dilution of the mixing of solutions and do you need to know pKa1 to ...
*October 2, 2014*

**physics**

A parachute on a person jumping from a plane opens and changes the speed of the person from 65m/s to 35m/s in a period of 4.2 seconds. What is the acceleration of the person?
*September 25, 2014*

**physics**

A parachute on a person jumping from a plane opens and changes the speed of the person from 65m/s to 35m/s in a period of 4.2 seconds. What is the acceleration of the person?
*September 25, 2014*

**Algebra**

In 1999 there were 200,000 registered dogs that were Labrador retrievers and dachshunds. There were 3 times as many Labrador retrievers as dachshunds. Find the number of Labrador retrievers and dachshunds
*April 7, 2014*

**chemistry**

Calculate the number of moles in 3.50 x 1021 atoms of silver.
*February 10, 2014*

**English**

Can someone help me! The word metaphor comes from the Greek prefix meta-, meaning “across,” and pherein, meaning “to carry.” Which of the following words does not contain the Greek prefix meta-? a. metaphysics b. metamorphosis c. metallic <---- my answer...
*May 30, 2013*

**Chemistry**

How many grams of barium nitrate is needed to form a solution with 5.00 mass% Ba (NO3)2 in 400 grams of water.
*May 14, 2013*

**cis106**

Explain the differences among LANS, WANS, CANS, and MANS.
*May 11, 2013*

**CHEMISTRY**

The solubility of a compound in water is 6.8g/100ml at 0.33g/100ml at 25 degree celsius. Calculate the amount of water required to crystallise 10g of the compound. If the pure compound is collected at 25 degree celsius, what is the maximum possible yield percent?
*February 16, 2013*

**Algebra**

Rational Expressions: I'll do my best to type the following correctly: x-5+ 14/x+4 divided by x+3- 2/x+4 Simplify, Step by step Please!
*January 30, 2013*

**algebraic expressions 5th grade math**

i want to know how to write the algebraic expression for the word problem,not solvet it,thanks
*January 16, 2013*

**algebraic expressions 5th grade math**

larry and martha each planted the same number of carrots seeds in their gardens.After 4 weeks,larry had c carrots and martha had 6 more(write an expression)please help me solve,thank you
*January 16, 2013*

**Algebra CTU**

What is the unpaid balance of the business loan of 50,000 with interest rate of 9% compounded monthly for7 years, after the firt year of payments?
*December 20, 2012*

**math**

draw a rectangle 3 X 4 with 5/12 shaded
*June 18, 2012*

**Reading/English**

i was wondering what grade did you get on this?? I'm taking the same class
*April 17, 2012*

**calculate ratios**

Calculate the amount of drug in a ratio solution. How many micrograms are in 1ml of a 1:5000 solution?
*March 6, 2012*

**math help please**

Calculate the cost to the pharmacy as AWP less 13%. AWP $84.07 per 100 tablets and dispense 30 tablets
*February 28, 2012*

**Science**

An animal cell has all of the following structures except ________
*February 27, 2012*

**more math needed**

You have a 70% dextrose solution. How many grams of dextrose are in 400ml?
*February 24, 2012*

**Math help needed**

How many capsules , each containing 250mg, are needed to provide 50mg/kg/day for 10 days for a person weighing 176 lbs?
*February 23, 2012*

**Math hlp**

If a physician prescribed 4gm of aspirin to be taken daily, how many 5 grain tablets should the pt take each day?
*February 18, 2012*

**MATH HELP PLZ**

A physician orders 750mg of chloramphenicol to be added to a 100ml bag of NS. If the drup is reconstituted to 1gm/10ml, how many mills will be added to NS?
*February 16, 2012*

**MATH HELP**

In what proportion should 95% alcohol be mixed with 30% alcohol to make 70% alcohol?
*February 16, 2012*

**Math HELP!!**

How many mls of a syrup containing 85% of sucrose should be mixed with 150ml of a 60%sucrose syrup to make a syrup containing 80% sucrose?
*February 9, 2012*

**pharmacy calculations**

f an injectable contains 20% of mannitol, how many mls of the injection should be administered to provide 100gm of mannitol?
*February 3, 2012*

**pharmacy calculations**

If 500gm of dextrose are dissolved in 600ml of water, with the final volume being 1000ml, what is the percentage strength of the dextrose in the solution?
*February 2, 2012*

**math**

The IV dose of mannitol is 1.5g/kg, administered as a 15% solution. How many mls of the solution should be administered to a 150lb patient?
*February 2, 2012*

**Math**

If an injectable contains 20% of mannitol, how many mls of the injection should be administered to provide 100gm of mannitol?
*February 2, 2012*

**math**

Prochlorperazine is available in 10ml multiple dose vial. Eash ml contains 5mg. How many 2mg doses can be taken from this vial?
*February 2, 2012*

**math**

If an albuterol inhaler contains 20mg of albuterol, how many inhalation doses can be delivered if each dose contains 90mcg?
*February 2, 2012*

**math**

If an injectable drug contains 25mcg/0.5ml, how many mls will be required to provide a patient with a dose of 0.25mg?
*January 31, 2012*

**physics**

A ball rolls up a ramp and then back down again. The ramp is oriented so that the ball is rolling to the right as it rolls up the ramp. Assume that positive v and a vectors point to the right. Which statement is true about the ball's horizontal acceleration? b. The ball ...
*January 19, 2012*

**physics**

A ball rolls up a ramp and then back down again. The ramp is oriented so that the ball is rolling to the right as it rolls up the ramp. Assume that positive v and a vectors point to the right. Which statement is true about the ball's horizontal acceleration?
*January 19, 2012*

**Statistics**

There are 200 students in a sample. How many of these students will have scores that fall under the score of 41? Mean is 45, standard dev. is 4.
*November 15, 2011*

**College Statistics**

A random sample of greeting cards is a mean value of $2.55 and a standard deviation of $0.44 So construct a 95% confidence interval estimate of the mean value of all cards in the store's inventory. So if the 2500 cards in the inventory then how are the results in assisting...
*November 9, 2011*

**calculus**

if F(x)=f(xf(xf(x))), where f(1)=2, f(2)=3, f'(1)=4, f'(2)=5, and f'(3)=6, find F'(1).
*October 10, 2011*

**calculus**

if F(x)=f(xf(xf(x))), where f(1)=2, f(2)=3, f'(1)=4, f'(2)=5, and f'(3)=6, find F'(1).
*October 9, 2011*

**calculus**

find the derivative of y=cos pix/sinpix+cospix
*October 9, 2011*

**calculus**

find the derivative of (x^2+1) 3rd root of x^2+2
*October 9, 2011*

**calculus**

find an equation of the tangent line to the curve at y=2x^3+5x, (-1, 3)
*September 24, 2011*

**calculus**

f(x)=X^3, f(a+h)-f(a)/h please help im so lost thanks
*August 29, 2011*

**electric power tools**

what is the purpose of a diode in a cordless drill or power screwdriver?
*June 21, 2011*

**physics**

The density of gold is 19.3 x 10^3 kg/m^3. What buoyant force does a .6 kg gold crown experience when it is immersed in water?
*April 8, 2011*

**PSYCHOLOGY**

Provide an example of ow one domain of development impacts the other two
*March 11, 2011*

**Psychology**

Describe why it is important to consider each domain in the study of adult development
*March 11, 2011*

**math**

Use each of the numbers 1 through 9 once in any order that you want to make and expression 2011
*March 8, 2011*

**physics**

if |A|=2, |B| =4, |C| =5, find the vector sum a+b+c in ordered pair notation, also find the angle theta
*March 1, 2011*

**physics**

if |A|=2, |B| =4, |C| =5, find the vector sum a+b+c in ordered pair notation, also find the angle theta
*March 1, 2011*

**physics**

a .140 kg baseball is dropped from rest from a height of 2.2m above the ground. it rebounds to a height of 1.6 m. what change in the balls momentum occurs when the ball hits the ground
*February 23, 2011*

**physics**

a .330 kg volleyball is dropped from rest. it takes it 1.30 s to reach the ground. what is the magnitude of its momentum just before it hits the ground
*February 22, 2011*

**physics**

a .140 kg baseball is dropped from rest from a height of 2.2m above the ground. it rebounds to a height of 1.6 m. what change in the balls momentum occurs when the ball hits the ground?
*February 22, 2011*

**physics**

thanks, how did you get the .707 though?
*February 12, 2011*

**physics**

a device has a 100g wooden shuttle that is pulled along a square woooden rail by an elastic band. the shuttle is released when the elastic band has 9.0 N tension at a 45 degree angle. what is the magnitude of the initial acceleration of the shuttle?
*February 12, 2011*

**math**

how do you find the equation line of these ordered pairs (1/6, -1/3) and (5/6, 5)?
*February 11, 2011*

**please help with physics**

a gun tilted upward at 30 degrees fires a bullet with a speed of 215 m/s. what is the bullets velocity parallel to the ground
*February 3, 2011*

**physics help**

a gun tilted upward at 30 degrees fires a bullet with a speed of 215 m/s. what is the bullets velocity parallel to the ground
*February 2, 2011*

**physics **

a gun tilted upward at 30 degrees fires a bullet with a speed of 215 m/s. what is the bullets velocity parallel to the ground?
*February 2, 2011*

**physics**

thanks makes sense now
*February 2, 2011*

**physics**

a spider crawls 4.7 m at an angle of 24 degrees north of east. another spider crawls 5.2m at an angle of 24 degrees east of north. what is the eastward displacement of the spiders?
*February 2, 2011*

**Forensic psychology**

What are the differences between the forensic treatment evaluation and the clinical treatment evaluation in non-forensic settings?
*January 18, 2011*

**Finance**

What is the monthly payment of $200,000 is financed for 15 years at 7.5%?
*December 1, 2010*

**physics**

A net force of 295 N accelerates a bike and rider at 2.60 m/s^2. What is the mass of the bike and rider together?
*September 21, 2010*