Tuesday
February 9, 2016

# Posts by Ashley

Total # Posts: 3,149

maths
If the price of one tin is £t, which of the expressions below represents how much it will cost Morris to buy five tins? 5(t – 1) 5t – 1 t – 5 5t – 5
September 27, 2015

Physics
You are driving off of a horizontal cliff, again!!! The cliff is measured to be 35.56 m above a rocky ravine floor, but you land 10.36 m away from the sheer cliff face. How fast were you going when you drove off of the cliff?
September 23, 2015

Physics
You are driving off of a horizontal cliff, and your car has a horizontal velocity of 29.33 m/s at the instant you leave the cliff. The cliff is an unknown height above a rocky ravine, but you land 146.8 m away from the sheer cliff face. How tall is the cliff?
September 23, 2015

Chemistry
If 2.0 mol of propane are burned (reacted with oxygen), how many moles of carbon dioxide will be produced? C3H8 (g) + 5 O2(g) → 3 CO2 (g) + 4 H2O (g) I just want to make sure the answer is 6 mol of CO2 will be produced.
September 18, 2015

math
find the product tell which strategy you used (4x10)x10
September 15, 2015

algebra
You shouldn't call people retarted.. and Damon got the answer right, and you didn't know the answer so maybe you Oscar are "Weird.'
September 12, 2015

algebra
You shouldn't call people retarted..
September 12, 2015

Math
Evelyn sells used cars he base salary is \$800 a week and she receives a 12% commission on each sale represent Evelyn total salary for the week if she had d dollars of sales
September 10, 2015

health
A patient who lost his or her hearing sometime after birth is said to be A. half-deaf. B. adventitiously deaf. C. incurably deaf. D. congenitally deaf.
September 9, 2015

occupational therapy
Which of the following questions is best worded for the confused patient? A. "When would you like to go for your walk?" B. "Would you like a drink with your dinner?" C. "What would you like to drink?" D. "When did your illness originate?"
September 9, 2015

Math
I kinda get it but what is the answer?
September 2, 2015

Statistics
In advance of the 1936 Presidential Elections, a magazine titled Literary Digest released the results of an opinion poll predicting that the republican candidate Alf Landon would win by a large margin. The magazine send post cards to approximately 10,000,000 prospective voters...
August 28, 2015

Physics
Consider a cloudless day when the sun shines down across the United States. If 2375 kJ of energy reaches a square meter (m2) of the United States in one hour, how much total solar energy reaches the entire United States per hour? The entire area of the United States is 9,158,...
August 26, 2015

College Physics
A cyclist is at rest at a traffic light. When the light turns green, he begins accelerating at 2.56 m/s2. How far does he go after the light turns green until he reaches a cruising speed of 10.88 m/s?
August 25, 2015

ummm could you please be more specific?
August 21, 2015

Velocities of the 2 cars during the race are given in the tables below where velocities, v are in miles per hour and times t are in seconds. Sappho's car: time: 0 1 2 3 4 5 6 7 8 9 10 velocity:0 20 35 48 62 75 85 93 99 106 111 Homer's car: time: 0 1 2 3 4 5 6 7 8 9 10 ...
August 21, 2015

August 20, 2015

Consider a lake of constant volume 12200 km^3, which at time t contains an amount y(t) tons of pollutant evenly distributed throughout the lake with a concentration y(t)/12200 tons/km^3. assume that fresh water enters the lake at a rate of 67.1 km^3/yr, and that water leaves ...
August 20, 2015

financial management
Tribke Enterprises collected the following data from its financial reports for 2012: Stock price \$18.37 Inventory balance \$300,000 Expenses (excluding COGS) \$1,120,000 Shares outstanding 290,000 Average issue price of shares \$5.00 Gross margin % 40% Interest rate 8% TIE ratio ...
August 19, 2015

The region R is bounded by the x-axis, x=2 and y=x^2. Which of these expressions represents the volume of the solid formed by revolving R about the line x=2?
August 9, 2015

Chemestry
Question 1) Consider the following reaction of calcium hydride (CaH2) with molten sodium metal:CaH2(s) + 2 Na(l) -> 2 NaH(s) + Ca(l) Identify the species being oxidized and the species being reduced? Question 2) Give the names to the binary compounds listed below. Classify ...
July 27, 2015

english
Whats another way to say "no human rights.." My sentence is starting with "In order to solve.."
July 17, 2015

French SraJMcGin
My question is.. when i make up these sentences.. how can i make sure that when translated it, it will have the subjonctif
July 17, 2015

Physics
A 2000 kg car pushes a 3000 kg truck that has a dead battery. The ground pushes forward on the car with a force of 6000 N. What is the magnitude of the force that the truck exerts on the car? Ignore any friction forces. My work/attempts: I've drawn a for body diagram for ...
July 3, 2015

Chemistry
im very stuck on finding r
June 29, 2015

world history
Which of these was NOT a shared trait of early Harappan and Mesopotamian civilizations?
June 24, 2015

medical
It also said that everything else was normal, such as weight and blood pressure
June 18, 2015

medical
For this assignment, I have to diagnose a list of patients. 1. 14 year old female feels a tightness in her chest when she gets nervous. Also, she starts wheezing when she exercises while being nervous as well as feels a sharp pain in stomach region. I believe this girl has a ...
June 18, 2015

1. Suppose the height, h, in feet, of a trampolinist above the ground during one bounce is modelled by the quadratic function h(t) = -16t2 + 42t + 3.75 . For what period of time is the trampolinist at least 22 ft above the ground? Round your answers to the nearest hundredth. (...
June 18, 2015

physics
ok i will do that. thanks for the help!
June 14, 2015

physics
i did delta L = (alpha)(initial L)(delta T) delta L = (12E-6)(58.5)(55.7) = 0.0391 m and i got it wrong. i tried that answer as negative too and it was still wrong. so does anyone know where i went wrong? i REALLY appreciate that help!!!
June 14, 2015

physics
i wanted to post the exact question so people will have all the information. and i am sorry for making anyone angry. i don't want it done for me, i just want what formulas to use. thanks to anyone/everyone that answers!! :)
June 14, 2015

physics
A steel section of the Alaskan pipeline had a length of 58.5 m and a temperature of 18.0 °C when it was installed. What is its change in length when the temperature drops to a frigid -37.7 °C?
June 14, 2015

physics
The brass bar and the aluminum bar in the drawing are each attached to an immovable wall. At 29.0 °C the air gap between the rods is 1.93 x 10-3 m. At what temperature will the gap be closed?
June 14, 2015

physics
A copper kettle contains water at 29.1 °C. When the water is heated to 86.6 °C, the volume of the kettle expands by 5.56 x 10-5 m3. Determine the volume of the kettle at 29.1 °C.
June 14, 2015

physics
Ideally, when a thermometer is used to measure the temperature of an object, the temperature of the object itself should not change. However, if a significant amount of heat flows from the object to the thermometer, the temperature will change. A thermometer has a mass of 31.8...
June 14, 2015

physics
An ice chest at a beach party contains 12 cans of soda at 4.56 °C. Each can of soda has a mass of 0.35 kg and a specific heat capacity of 3800 J/(kg C°). Someone adds a 6.54-kg watermelon at 28.5 °C to the chest. The specific heat capacity of watermelon is nearly ...
June 14, 2015

physics
Two bars of identical mass are at 29 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/(kg · C°). When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 92 °C, ...
June 14, 2015

physics
How much heat in joules must be added to 0.413 kg of aluminum to change it from a solid at 122 °C to a liquid at 660 °C (its melting point)? The latent heat of fusion for aluminum is 4.0 x 105 J/kg.
June 14, 2015

physics
A thick, vertical iron pipe has an inner diameter of 0.070 m. A thin aluminum (α = 23x10-6 (C°)-1) disk, heated to a temperature of 89°C, has a diameter that is 4.4x10-5 m greater than the pipe's inner diameter. The disk is laid on top of the open upper end of...
June 14, 2015

STATISTICS
Find the approximate 84th percentile of the pig pregnancy length distribution
June 2, 2015

chemistry
Describe the difference in intermolecular forces between the two molecules. How does this affect the properties of the substance first one molecule is made up of H3C,OH,CH3, and another CH3. The second molecule is made up of H3C,O,OH3, and CH3.
May 29, 2015

physics
Please help! I want to make sure my answer is correct. Q:A thundercloud has an electric charge of 43.2 C near the top of the cloud and -38.7 near the bottom of the cloud. The magnitude of the electric force between these two charges is 3.95 x 10^6 N. What is the average ...
May 28, 2015

English
What is the significance of Catherine Earnshaws ghost in Wuthering Heights?
May 27, 2015

math
Mike has a tree 58ft long and wants to cut it into 24 equal pieces. How long would the pieces be?
May 26, 2015

geomotry
In Triangle ABC, AC = BC and mC = 62°. The longest side of the triangle is:
May 22, 2015

French
Does France have "White House?"
May 18, 2015

algebra
Alonzo wants to buy a bike for \$260. He can pay for it in 8 months if he pays \$60 now and \$25 each month. If he were to pay \$60 now and \$20 each month, how many more monthly payments would it take to pay for it?
May 7, 2015

Math
. At a track meet, 50 people ran the 100-meter dash. 2 people finished in 11 seconds, 5 people finished in 12 seconds, 8 people finished in 13 seconds, 10 people finished in 14 seconds, 21 people finished in 15 seconds, 2 people finished in 16 seconds, and 2 people finished in...
May 6, 2015

Calculus
h(x) = x+cos(ax) is a family of functions where a is a positive constant such that 0<a<4. Which values of a make h(x) strictly decreasing? Justify your answer. I can't figure this out and help would be appreciated. Thanks in advance!
May 2, 2015

Calculus
h(x)= x + cos(ax), where a is a positive constant such that 0 < a < 4. For what values of a will h(x) have a relative maximum at x=1? So I found the derivative and got h'(x) = 1- asin(ax). Then I plugged in 1 for x and set the derivative equal to zero, so I have 1 + ...
May 1, 2015

Calculus
I made a typo. The derivative is 1+ a sin(ax), sorry.
May 1, 2015

Calculus
h(x)= x + cos(ax), where a is a positive constant such that 0 < a < 4. For what values of a will h(x) have a relative maximum at x=1? So I found the derivative and got h'(x) = 1- asin(ax). Then I plugged in 1 for x and set the derivative equal to zero, so I have 1 - ...
May 1, 2015

Algebra
The following equation is quadratic. f(x)=(x-7)(3x-2) What are the x-intercepts of the graph of the related equation y=(x-7)(3x+2)? A) -7 and 2/3 B) -7 and 3/2 C) -3/2 and 7 D) -2/3 and 7
April 30, 2015

Calculus
I'm not sure how to do this; I figured I should use separation of variables but I got the wrong equation. Help is appreciated, thanks! If dy/dx=(1+x)/(xy), x > 0, and y = –4 when x =1, when x =3, y = ? A. 6.433, −6.233 B. 3.898, −3.898 C. 4.711, −...
April 30, 2015

Calculus-limits
What is the limit as x approaches a of (sinx-sin a)/(x-a)? a. -sin a b. cos a c. -sin x d. cos x e. undefined Thanks!
April 29, 2015

Calculus-limits
I'm studying for the AP exam and I can't figure this problem out. I thought the answer was negative infinity but that isn't an option. Thank you in advance! What is the limit as x approaches infinity of (9x-x^2-7x^4)/(x^3+12x)? a. 9 b. 7 c. -7/12 d. -7 e. Does not ...
April 29, 2015

Chemistry
Sulfur trioxide decomposes into sulfur dioxide and oxygen in an equilibrium. You have a 3.00 L vessel that is charged with 0.755 mol of SO3. At equilibrium, the amount of SO3 is 0.250 mol. 2 SO3 (g) ----> 2 SO2 (g) +O2 (g) A) calculate the equilibrium concentrations of SO2 ...
April 28, 2015

algebra
The apartment building where Herman lives was built 12 years before his grandmother's house. In 4 years, the apartment building will be twice as many years old as Herman's grandmother's house. How many years ago was Herman's grandmother's house built?
April 28, 2015

Calculus
Can someone check my work on this problem? I'm studying for the AP test and I would really appreciate any help. Let f(x) = the definite integral from [-2,(x^2-3x)] of e^(t^2) dt At what value of x is f(x) a minimum? a. For no value of x b. 1/2 c. 3/2 d. 2 e. 3 The answer I...
April 28, 2015

Calculus help??
I'm not sure how to solve this and help would be great! d/dx [definite integral from 0 to x of (2pi*u) du] is: a. 0 b. 1/2pi sin x c. sin(2pi x) d. cos (2pi x) e. 2pi cos (2pi x) This is the fundamental theorem, right? What's confusing me is the u and du and the end. ...
April 28, 2015

Algebra
Jack bought 3 slices of cheese pizza and 4 slices of mushroom pizza for a total cost of \$12.50. Grace bought 3 slices of cheese pizza and 2 slices of mushroom pizza for a total cost of \$8.50. What is the cost of one slice of mushroom pizza?
April 27, 2015

Physics
Two pellets, each with a charge of 1 microcoulomb, are located 3 cm apart. What is the electric force between them?
April 27, 2015

Physics
An equal amount of heat is transferred to two containers containing water at the same temperature. If the second container contains three times as many water molecules as the first, how do the final temperatures compare?
April 27, 2015

Calculus
The expression dy/dx = x*(cube root y) gives the slope at any point of the graph of the function f(x) where f(2) = 8. A. Write the equation of the tangent line to f(x) and any point (2,8). B. Write an expression for f(x) in terms of x. C. What is the domain of f(x)? D. What is...
April 26, 2015

math
If the intensity of a lightbulb is 45w/m^2 at a distance of 8m, then what is the intensity of it at a distance of 3m?
April 26, 2015

Chemistry
Consider the following reaction: CO(g)+2H2(g)⇌CH3OH(g) Kp=2.26×104 at 25 ∘C. Calculate ΔGrxn for the reaction at 25 ∘C under each of the following conditions. A) Standard Conditions B) at equilibrium C)PCH3OH= 1.3atm ; PCO=PH2= 1.2×10−2atm
April 22, 2015

Chemistry
Consider the following reaction: 2NO(g)+O2(g)→2NO2(g) Estimate ΔG∘ for this reaction at each of the following temperatures and predict whether or not the reaction will be spontaneous. (Assume that ΔH∘ and ΔS∘ do not change too much within...
April 22, 2015

Math
A toy company has increased their size of one of their dolls. The packaging department has calculated that they need to add 3 inches to each of the dimension of the original packaging (Original height=10 in width=2.75 length=5). What is the new amount of material needed to ...
April 20, 2015

s.s
power to make laws
April 17, 2015

s.s
I thing it supreme court
April 17, 2015

s.s
the legislative branch of the federal government made up of the (Congress/Supreme court)
April 17, 2015

s.s
is it d
April 17, 2015

s.s
is it a
April 17, 2015

s.s
what were the two main goals of the constitution's creators? a.create local goverments and elect a president b.establish the 51st state and define borders c. raise taxes to build the treasury and pay off war debts d. protect citizens' rights and defend the country
April 17, 2015

Integration by Parts
integral from 0 to 2pi of isin(t)e^(it)dt. I know my answer should be -pi. **I pull i out because it is a constant. My work: let u=e^(it) du=ie^(it)dt dv=sin(t) v=-cos(t) i integral sin(t)e^(it)dt= -e^(it)cos(t)+i*integral cost(t)e^(it)dt do integration by parts again, then I ...
April 16, 2015

Calculus
Oil spilled from a ruptured tanker spreads in a circle whose area increases at a constant rate of 7.5 mi^2/hr. How rapidly is radius of the spill increasing when the area is 8 mi^2? I tried using A=(pi)r^2 and dA/dt=2(pi)r(dr/dt) and plugging in 7.5=2(pi)8(dr/dt) but the ...
April 10, 2015

math
So it is A?
April 9, 2015

math
Students in Mrs. Doyles classes use 3/4 of a bottle of hand sanitizer every week. Which expression can be used to find how many bottles of hand sanitizer the students will use in 12 weeks. A. 12 x 3/4 B. 12 + 3/4 C. 12 - 3/4 D. 12 divided by 3/4 I have narrowed it down to A ...
April 9, 2015

math
an oatmeal cookie recipe that makes 24 cookies requires 1 cup of sugar if alex needs 30 cookies how many cups of sugar should she use
April 7, 2015

math
Juanita Finn deposits \$12,000 into an account at Valley Bank that pays 8% interest compounded quarterly. At the end of 5 years, how much will Juanita have in her account? Round to the nearest cent.
April 7, 2015

chemistry
25 mL 0.4 M KOH will neutralize 10 mL 1.0 M H2SO4 solution. A) True B) False
March 27, 2015

History
US History Crossword Puzzle 1. 9 letters; areas of Mississippi and Alabama characterized by black soil and excellent cotton-growing conditions 2. 13 letters; cotton-producing region of the southern United States How did the Free-Soil Party propose to handle of the question of ...
March 25, 2015

Math
Use the initial condition y(0)=4 and step size h=.25, calculate the backward Euler on [0,1] for the ODE y'=10y-10y^2. Solve the ODE exactly and compute the errors at t=1.
March 25, 2015

math
How to make pyramid pattern of 140 blocks?
March 24, 2015

Math
How much more would there be at the end of 8 years if \$4000 were invested at 14% compounded quarterly rather than semiannually? (Round your answer to the nearest cent.)
March 22, 2015

Career Explorations
career experience
March 18, 2015

Can u help me ?
March 18, 2015

For questions 1, 2 identify each sentence as arithmetic, geometric both or neither. 1) 7, 9, 11, 13 ...... A) arithmetic B) geometric C) both D) neither (my answer) 2) 2, 1, 1/2, 1/4, .... A) arithmetic B) geometric C) both (my answer) D) neither
March 18, 2015

accounting
Savallas Company is highly automated and uses computers to control manufacturing operations. The company uses a job-order costing system and applies manufacturing overhead cost to products on the basis of computer-hours. The following estimates were used in preparing the ...
March 10, 2015

statistics
A jar contains 3 nickels and 2 dimes. You reach in and randomly select 2 coins. Let x represent the value of the two coins in cents. Find the expected value and standard deviation of x
March 10, 2015

Math
Thank you so much!
March 5, 2015

Math
When dropped on a hard surface, a rubber ball takes a series of bounces, each one about 4/5 as high as the preceding one. If the rubber ball is dropped from a height of 20 ft, what is the approximate distance the ball travels before coming to rest? Please explain how you got ...
March 5, 2015

Art
1.d 2.a 3.d 4.b 5.b
March 2, 2015

Physics
A 7.5 kg box is on a table. What is the normal force acting on the box in each of the following situations? a) You leave the box alone. b) You push down on the box with a force if 20 N. c) You pull up on the box with a force of 20 N.
March 1, 2015

Physics
A worker pushes horizontally on a 25 kg crate resting on ground level. The coefficients of static and kinetic friction are 0.4 and 0.3.? a) How much force must he apply to start the crate moving? b) After the crate has stereo moving, how much force must he apply to move the ...
March 1, 2015

Geometrt
Casey sights the top of an 84 foot tall lighthouse at an angle of elevation of 58 degrees. If casey is 6 feet tall, how far is he standing from the base of the lighthouse?........ Do I use cos, tan, or sin? I did the rest of the worksheet but I'm not sure for this one
February 28, 2015

Physics
Label as to Mechanical, Electrical, Chemical, Heat, Radiant, Nuclear energy: 1) an egg 2)fire 3)waterfall 4)sound 5)light 6)gasoline 7)lightning 8) sun's energy 9) cooking an egg
February 26, 2015

math
Jennifer Rick went to Sunshine Bank to borrow \$3,500 at a rate of 10¾%. The date of the loan was September 7. Jennifer hoped to repay the loan on January 15. Assume the loan is calculated using ordinary interest. How much will Jennifer totally repay?
February 26, 2015