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September 22, 2014

Posts by Ashley


Total # Posts: 2,738

Math Max min problems
Ok.... great. thank you Steve. I know understand!
January 29, 2013

Math Max min problems
ok. I understand that you took the value and plugged in for i. But can I ask why...
January 29, 2013

Math Max min problems
The power P delivered to a load by a current of i amperes through a resistance of 19 ohms, when 110 volts are supplied at one end of the line, is given by the formula P = 110i - 19i2 . Determine the maximum power that can be delivered. maximum power in watts = My Answer: My ...
January 29, 2013

Math
Oh, sorry I didn't realise that I needed to provide my answer. I just want to check to see if I obtain the correct answer. My answer is: P=110i-19i^2 P'=110-38i 0=110-38i i=2.8947 P"=-38 therefore a max Max Power in watts = 2.8947
January 29, 2013

Math
The power P delivered to a load by a current of i amperes through a resistance of 19 ohms, when 110 volts are supplied at one end of the line, is given by the formula P = 110i - 19i2 . Determine the maximum power that can be delivered. maximum power in watts =
January 29, 2013

PHYSICS
Ms. Anderson shoots an arrow straight up into the air. The arrow leaves her bow at 1.2[m] above ground, and reaches a height of 95 feet above ground. It then falls down and penetrates 14 inches into the ground. Find: a) The velocity of the arrow just before reaching the ground...
January 28, 2013

Physics!
Ms. Anderson shoots an arrow straight up into the air. The arrow leaves her bow at 1.2[m] above ground, and reaches a height of 95 feet above ground. It then falls down and penetrates 14 inches into the ground. Find: a) The velocity of the arrow just before reaching the ground...
January 28, 2013

Physics
Mr. Anderson shoots an arrow straight up into the air. The arrow leaves her bow at 1.2[m] above ground, and reaches a height of 95 feet above ground. It then falls down and penetrates 14 inches into the ground. Find: a) The velocity of the arrow just before reaching the ground...
January 28, 2013

Calculus
I'm not sure what to substitute in this question. Evaluate the integral Square root (tan^-1(x)) / (x^2+1)
January 27, 2013

Physics
A string on a guitar is supposed to vibrate at 300 Hz, but is measured at 305 Hz. By what percent should the tension in the string be adjusted to correct the tuning?
January 27, 2013

Physics
A 7.94 nC charge is located 1.75 m from a 4.18 nC point charge. Find the magnitude of the electrostatic force that one charge exerts on the other.
January 26, 2013

math
a plane flies at 430mph the bearing from Paris to Moscow is 78drgrees and the distance is 1800 mi if the wind is blowing 65mph at 340degrees what heading will take you from Paris to Moscow and how long will it take? include drawing and trip back
January 23, 2013

math
a boat travels at 16 knots 1st leg: 6hr @ S63W 2nd leg: 4hr @ N10E find time and bearing back to port
January 23, 2013

math
list a set of at least 12 numbers that has a minium of 28 maximum of 34 median of 30 mode of 29
January 22, 2013

Calculus 2
I'm confused on how to solve or set up a substitute for the problem. Evaluate the Integral from 1/4 to 1. 1/ sqrt(16t^2 -1) dt
January 22, 2013

English
10. How does Algernon find out where Jack’s house in the country is located? He eavesdrops on Jack.--Is this correct? He has Lane find out. He steals Jack’s mail. Jack tells him. 11. What is Bunburying? Making up a fake identity to avoid debt collectors. Making up a ...
January 22, 2013

Chem
If a 930cm3 piston compresses the air in the cylinder to 1/8 its total volume, what is the pressure after the gas is compressed?
January 21, 2013

Math
What is the unit rate of 8mi and 5h
January 18, 2013

Trig!
a) The annual inflation rate is 3.5% per year. If a movie ticket costs $7.50, find a formula for p, the price of the tickets t years from today, assuming that movie tickets keep up with inflation. b) According to your formula, how much will movie tickets cost in 20 years?
January 15, 2013

math
I need help figuring out the formula for this problem. What might the lengths of a horse enclosure border be if the enclosure is 52 square feet? I have to show my work. Please can someone help me figure it out?
January 14, 2013

physics
You are driving a car 33 down the road. The stoplight in front of you suddenly turns red and you slam on the brakes, skidding to a halt. You get out of the car and measure the skid marks made by your tires to be 23.5 meters (Assume positive x to be in the forward direction) ...
January 11, 2013

Physics THRUST
To begin I just need to know how to do thrust. A lunar lander in powered descent at 100 m above the surface of the moon slows down from a velocity of 20 m/s to 0.5 m/s at constant acceleration. Assume that the lander has a mass of 20,000 kg and that burning the fuel does not ...
January 10, 2013

physics
A lunar lander in powered descent at 100 m above the surface of the moon slows down from a velocity of 20 m/s to 0.5 m/s at constant acceleration. Assume that the lander has a mass of 20,000 kg and that burning the fuel does not change the mass. Answer the following questions...
January 9, 2013

physics
A lunar lander in powered descent at 100 m above the surface of the moon slows down from a velocity of 20 m/s to 0.5 m/s at constant acceleration. Assume that the lander has a mass of 20,000 kg and that burning the fuel does not change the mass. Answer the following questions...
January 9, 2013

lit
What I wanted to do was to finish my work.
January 9, 2013

FIN 370
How are an operating budget and a cash budget linked?
January 9, 2013

FIN 370
What actions might an underperforming organization take to reach and exceed the breakeven point?
January 9, 2013

Math
$435.58 if you are looking for future value...
January 9, 2013

math (algerba 1)
Is 2x2 + 16x + 32 a tri square?
January 8, 2013

math (algerba 1)
2x2 + 16x + 32 how do I Factor and label? And how do I know if this is a tri square?
January 8, 2013

5th grade math
Hannah, For the first problem with the first mixed number, you would multiply 11 and 15 and add 13. So it would be 178/15 because you still use the demominator. Then you mulitply 3 and 12 and add 7. So that would be 43/12. So the question is 178/15 + 43/12= Can you solve it ...
January 8, 2013

FIN 370
thanks!
January 8, 2013

FIN 370
What is the future value of $1000 in an account for 9 years compounded bi monthly at 14%
January 8, 2013

english
I am trying to an article on Academics. What is an easy why to explain what it means that is understanding?
January 7, 2013

Writing
How do I start a story on my self?
January 6, 2013

Please help
Thanks
January 3, 2013

Please help
A motorboat can travel upsteam on a river at 18km/h and downsteam at 30km/h. How far upstream can the boat travel if it leaves at 8:00am and must return by noon?
January 3, 2013

math (algerba 1)
A motorboat can travel upsteam on a river at 18km/h and downsteam at 30km/h. How far upstream can the boat travel if it leaves at 8:00am and must return by noon?
January 3, 2013

4th grade math
How do you explain how the product of 16 times 34 is like the product of 6 times 34 plus 10 times 34
December 19, 2012

math
Simran Gill speed walks around the school playground every evening. The playground is 80m long and 45m wide. a.) What is the perimater of the playground? b.) Suppose Simran took a longer walk. Suggest some ways he could do that.
December 18, 2012

3rd grade math
peanut butter
December 17, 2012

Math 12th grade
cucumbeer
December 16, 2012

Cultural Anthropology 101
7 is C/tropical forests
December 16, 2012

history
To what extent is the following statement accuate? "During the 1960s, the United Sates had become a more open, more tolernt, freer country."
December 16, 2012

chemistry
How many grams of water can be formed from 10 grams of oxygen?
December 12, 2012

Writing
I have to write a 5 page essay on the theme of Knowledge in the book Frankenstein...like how pursuing knowledge can be dangerous and Ignorance is bliss. For this essay we either have to defend or challenge the quote "For in much wisdom there is much sorrow and he who ...
December 12, 2012

English
Englishpage with a dot com at the end
December 10, 2012

language
yeaaah buddddy
December 10, 2012

chemistry
determining the concentration of a strong acid HCl when your given that the volume is 10ml and the mass of NaOH is 0.10 and the volume is 13.45
December 10, 2012

Algebra 2 Modulus
what would the modulus be for -6+ 4i and write it in simplified radical form?
December 7, 2012

Algebra 2
Solve the equation x-1= square root 3x+15
December 7, 2012

Chemistry 2
How many grams of nickel metal are plated out when a constant current of 15.0 A is passed through aqueous NICl2 for 60.0 minutes. Show all work. Please help!
December 4, 2012

Chemistry
In order for a cell potential to be a standard cell potential, the concentration of all ions in solution must be ________ M, the partial pressures of all gaseous species must be _______ atm, and the temperature must be ________ K. I need help with the blanks.
December 4, 2012

Chemistry
In order for a cell potential to be a standard cell potential, the concentration of all ions in solution must be ________ M, the partial pressures of all gaseous species must be _______ atm, and the temperature must be ________ K. I need help with the blanks.
December 4, 2012

chemistry
for the reaction 3C2H2=> C6H6 at 25 C, the standard enthalpy change is -631 KJ and the standard entropy change is -430 J/K. calculate the standard free energy change at 25 C. show all work!
December 4, 2012

chemistry
what is the most soluble salt of the following set? a) AgCN with Ksp=6.0 x 10^-17 b) Al(OH)3 with Ksp = 1.9x10^-33 c) Fe(OH)3 with Ksp = 2.6 x 10^-39 d) Sn(OH)2 with Ksp = 1.6 x 10^-19
December 4, 2012

Chemistry
What is the molarity of a solution prepared by diluting 25.0 mL of 0.412 M magnesium nitrate to a volume of 1.50 L please help!
November 30, 2012

physics
A 25 g bullet is fired from a gun into a 1.35 kg block of wood initially at rest. (The bullet sticks in the wood). The wood is driven 9.5 m across a horizontal surface with coefficient of friciton 0.25. Find the speed of the bullet just before impact.
November 30, 2012

physics
A 2.5m long pole is balanced vertically on it's tip. If it falls over with it's bottom never slipping. Find the speed of the top end of the pole just before it hits the ground.
November 30, 2012

physics
a uniform ladder of mass m and length l leans against fricitonless wall angle theta. If the coefficient of static friction between the ladder and the ground is u, find the formula for the minimun angle such that the ladder won't slip
November 30, 2012

physics
A star the size of the sun has a mass 8 times as great. It rotates on its axis once every 12 days. It then collapses into a neutron star of radius 10km, losing three quarters of its mass in the process. How long does it take to rotate once after collapse? (it's spere ...
November 30, 2012

History
How did the compromises made when writing and ratifying the Constitution encourage the development of political factions? Compare and Contrast the effectiveness of Washington’s and Adams’ presidencies in obeying and promoting the Constitution during their ...
November 30, 2012

algebra 2
Evaluate (7+3i) - (-2 -5i)
November 29, 2012

Linear equation
Graph each equation by making a table. Y = 4
November 29, 2012

Linear equation
Graph each equation by making a table. Y = 4
November 29, 2012

AAlgebra 1
Graph each equation by making a table. Y = 4
November 29, 2012

Physics
What is the equivalent resistance of two resistors of 2 ohm and 3 ohm connected in parallel?
November 29, 2012

Math
i think its 5
November 29, 2012

Calculus
use mean value theorem: f(x)= 7- 2^x, [0,4], c=?
November 28, 2012

Calculus
Evaluate the definite integral of the transcendental function. the integral from 0 to 5 of (2^x +8)dx. I got 40+ 31/log(2)but that's wrong.
November 28, 2012

statistics
the average student sends about 200 text messages a day with the standard deviation of 25 texts.(show graph) a.what is the probability that a student sends more than 250 messsages a day? b.what is the probability that student sends less than 150 text messages a day? c.what is ...
November 26, 2012

statistics
The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes.(show graph) B. what is the probabilty that a diver stays under for the less than 53 minutes? c.what is the probabilty that a diver stays under between 25 and 50? d. what is the ...
November 26, 2012

statistics
The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes.(show graph) B. what is the probabilty that a diver stays under for the less than 53 minutes? c.what is the probabilty that a diver stays under between 25 and 50? d. what is the ...
November 26, 2012

statistics
The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes.(show graph) B. what is the probabilty that a diver stays under for the less than 53 minutes? c.what is the probabilty that a diver stays under between 25 and 50? d. what is the ...
November 26, 2012

statistics
The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes, what is the probability that a diver stays under for more than 36 minutes
November 26, 2012

geometry
can a triangle have sides with the given lengths 4in. 4in. 4in.
November 26, 2012

math
Alicia went on a steamboat ride up the Mississippi River. The boat travels 20 miles per hour in still water. How long will it take her to travel 144 miles upstream if the current of the river is 8 miles per hour?
November 26, 2012

chamistry
calculate the pH pOH and (OH(aq)) of 0.006mol/l HI(aq)
November 25, 2012

chemistry
To clean a clogged drain, 26g of sodium hydroxide is added to water to make 150ml of solution. What are the pH and pOH values for the solution?
November 25, 2012

trig
It is 4.7km from Lighthouse A to Port B. The bearing of the port from the lighthouse is N73E. A ship has sailed due west from the port and its bearing from the lighthouse is N31E. How far has the ship sailed from the port?
November 18, 2012

7th grade science
in case you have not figured out the answer yet the answer is D.The bottom layer of the sedimentary rock.
November 18, 2012

physics
A 80kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. He catches the .43kg ball at the peak of his jump, when he is 17.2 inches off the ground. He hits the ground 1.61 inches away from where he leapt. If the ball was moving ...
November 17, 2012

math
If exactly 198 people sign up for a charter flight, Leisure World Travel Agency charges $308/person. However, if more than 198 people sign up for the flight (assume this is the case), then each fare is reduced by $1 for each additional person. Hint: Let x denote the number of ...
November 15, 2012

grammar
Is at an article adjective in the sentence, Call me at my office
November 15, 2012

Math
I thought is was written incorrectly on the worksheet; however, I just needed validation, thank you.
November 15, 2012

Math
My number is greater than 10 but less than 70. The number has 2 in the tens place. The number is 10 less than 45. What is my number?
November 15, 2012

Statistics
The average amount of time people spend on facebook each day is 71 minutes, with a standard deviation of 4.7 minutes. Are you more likely to select a random person that spends less than 68 minutes per day, or a group of 35 people that spend on average less than 65 minutes per ...
November 15, 2012

physics
a ball rolls off a 1.7m high desk and lands 1.35m away from the desk. how fast was it rolling?
November 15, 2012

trig
analyze given equation for following characteristics. (amplitude period, phrase shift) y= 3sin (2x-(3.14/2))
November 15, 2012

math
Phillip, the proprietor of a vineyard, estimates that the first 9600 bottles of wine produced this season will fetch a profit of $5 per bottle. However, the profit from each bottle beyond 9600 drops by $0.0002 for each additional bottle sold. Assuming at least 9600 bottles of ...
November 14, 2012

Geometry
y-8= 4/3 x(x+4)
November 14, 2012

Physics
A driver approaches an intersection at a speed of 50km/h, when the light turns amber. The driver applies brakes to get the maximum stopping force without skidding. The car has a mass of 1500kg and the force of static friction between the tires and the road is 1.1*10^4N. ...
November 12, 2012

Physics
A driver approaches an intersection at a speed of 50km/h, when the light turns amber. The driver
November 12, 2012

surface area & volume
Apothem=6sqrt3 side=12 SA=2B+ph SA=748.25+72h is that correct? i just don't understand how to figure out the height..
November 12, 2012

surface area & volume
How can I find the surface area and volume of a hexagonal prism if I don't know the height, only apothem and one side of the base? Thank you!
November 12, 2012

chemistry
You are doing an experiment to determine the Ksp of a salt. If, while filtering, some of the solid passed through the filter and was not taken out before titrating, how would the calculated Ksp and solubility be affected? Thanks.
November 11, 2012

Physics
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.70 105 Pa and the pipe radius is 2.50 cm. At the higher point located at y = 2.50 m, the pressure is 1.30 105 Pa and the pipe radius is 1.60 cm. (a) ...
November 9, 2012

Physics
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.70 105 Pa and the pipe radius is 2.50 cm. At the higher point located at y = 2.50 m, the pressure is 1.30 105 Pa and the pipe radius is 1.60 cm. (a) ...
November 9, 2012

Calculus
Is pi in the denominator?
November 7, 2012

Calculus
A solid is formed by adjoining two hemispheres to the ends of a right circular cylinder. The total volume of the solid is 2 cubic centimeters. Find the radius of the cylinder that produces the minimum surface area. (Round your answer to three decimal places.)
November 7, 2012

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