Friday
December 2, 2016

Posts by t

Total # Posts: 401

math
How do you write the ratio of an original perimeter to the new perimeter? How do you write the ratio of an original area to the new area? Are the ratios the same?
November 19, 2016

math
How do you write the ratio of an original perimeter to the new perimeter? How do you write the ratio of an original area to the new area? Are the ratios the same?
November 19, 2016

American Government
1) Formal rules, clearly defined goals, chain of command 2) the president's cabinet 3) staff agency
November 14, 2016

Math
If a student scored 54% on a test and wants to increase her score by 20% what will the final percentage score be
October 31, 2016

Chemistry
Write equations for the dissociation of the following in water. Do not include states in your answer. 1) sodium acetate (NaC2H3O2) NaC2H3O2 ---> Na+ + (C2H3O2)- 2) copper(II) perchlorate Cu(ClO4)2 ---> Cu2+ + 2(ClO4)- Enter balanced ionic and net ionic equations for ...
October 9, 2016

Derivative
f(x)=x|x| Show that f'(0) exists. What is the value? I don't know how to work with the absolute solving for f'(x) with first principles
October 3, 2016

math
You travel upstream for 3 hours. The return trip takes only 2.5 hours because you are traveling 2 mph faster. Determone the boats speed up river.
September 27, 2016

Math
one of the acute angle of an isosceles triangle is 50 degree find the other two angles
September 27, 2016

Functions
Find a function with the following characteristics: D {xer|x=/=4} R {yer|y=/=9} f(x) increasing over entire domain Impossible?
September 26, 2016

math
33 pounds of bananas cost $163.50. how much would 18 pounds cost?
August 9, 2016

Physics
You use a rope to slowly pull a sled and its passenger 45 m up a 20∘ incline, exerting a 125-N force on the rope. How much work did Earth do on the sled for the trip in Part B? The answer for part is -5630 J I'm not sure what to do. I tried -5630 J * 9.8 then I tried...
June 11, 2016

Physics
A basketball player drops a 0.60-kg basketball vertically so that it is traveling at 6.0 m/s when it reaches the floor. The ball rebounds upward at a speed of 4.7 m/s. Determine the average net force that the floor exerts on the ball if the collision lasts 0.12 s. I calculated...
June 9, 2016

Algebra
Carmen is using the quadratic equation (x + 15)(x) = 100 where x represents the width of a picture frame. Which statement about the solutions x = 5 and x = –20 is true?
June 2, 2016

Physics
A person holding a lunch bag is moving upward in a hot air balloon at a constant speed of 6.1 m/s . When the balloon is 28 m above the ground, she accidentally releases the bag. What is the speed of the bag just before it reaches the ground? I got Vf^2= Vo^2 +2ad Vf^2= 0+ (2*9...
May 23, 2016

Physics
A person holding a lunch bag is moving upward in a hot air balloon at a constant speed of 6.1 m/s . When the balloon is 28 m above the ground, she accidentally releases the bag. What is the speed of the bag just before it reaches the ground? I got Vf^2= Vo^2 +2ad Vf^2= 0+ (2*9...
May 23, 2016

Chemistry
How many electrons does the bromine of BrF3 have in its outermost valence shell? Is it still seven like it would be when Br is by itself? Is it four because the three F would "take" one each to fill their octets? Or is it some other number?
April 29, 2016

Math
a circle is divided into 9 equal parts. That is the angle measure of two of those parts?
March 24, 2016

English
what is the subject, verb and object in this sentence. The cow jumped over the moon
March 19, 2016

Statistics
Steve no that does not produce the correct answer
March 12, 2016

Statistics
a study shows that 16% of household appliances break during any given year. If a person has 4 household appliances, what is the probability that exactly 1 of them will break next year? I just need a formula and I can get it from there.
March 12, 2016

Art
I know it might be a little late but for anyone wanting to know the answer it's B: printing plate.
February 26, 2016

College A
2,900 to grow to $7,000 if the annual rate is 13.5% and interest is compounded monthly?
February 25, 2016

Accounting
A music store sells a CD with a wholesale price of $6 for $10.50 and one with a wholesale price of $14.00 for $20.50. If the markup policy for the store is assumed to be linear, find a function r = m(w) that expresses the retail price r as a function of the wholesale price w.
February 25, 2016

English
How can I reword or connect the two parts of this sentence? The truth behind the controversy is more than the remembrance of soldiers during the American Civil War, but the enslavement to Caucasian slave owners and the many African American slaves whose lives were taken away ...
February 22, 2016

Math
No the answer is not C, the answer would be A.
February 5, 2016

math
A fertilizer covers 3 4 square foot in 1 6 hour.
January 27, 2016

chemistry
A 43.20 mL sample of 0.3260 M sodium hydroxide (NaOH) is required to react completely with 36.70 mL of a phosphoric acid (H3PO4) solution. What is the molarity of the phosphoric acid solution?
January 23, 2016

Chemistry
Will 100g of copper completely replace all the silver in 200g of silver nitrate
January 8, 2016

History
Its C
January 7, 2016

math
Convert 8km to 22 minutes.. how?
January 3, 2016

Chemistry
Pjujt
November 21, 2015

grammar
The subcutaneous tissues were copiously irrigated, and a few small bleeders were cauterized. copiously modifies which word?
October 22, 2015

grammar
The patient had definitely suffered a myocardial infarction. definitely modifies which word?
October 22, 2015

physics
A skier leaves the top of a ski ramp at an angle of 25 degrees with an initial velocity of 10 m/s. The ramp is 60 m high, neglecting air resistance determine: a. The time it takes the sk ier to reach the ground. b. How far away from the base does he land? c. How high above the...
October 1, 2015

physics
A ball is kicked with an initial velocity of 20.0 m/s at an angle of 35 degrees to the ground. If it is to pass over a wall 5.6 m high determine a. The minimum horizontal the wall can be placed from the ball’s launch point in meters. b. What would be the ball’s ...
October 1, 2015

physics
A skier leaves the top of a ski ramp at an angle of 25 degrees with an initial velocity of 10 m/s. The ramp is 60 m high, neglecting air resistance determine:
October 1, 2015

algebra
For f(x)= 3x^2 +5 and g(x)=7x-2, a. Verify: (show the steps for each side clearly.) g(x+2) not equal g(x) + g(2). I need help idk answer a.
September 21, 2015

algebra
I don't know answer a. and b. .... I need help please.....
September 20, 2015

algebra
A size 36 shoe in France is size 3.5 in England. A function that converts shoe sizes in France to those in England is g(x)=3x-94/4. A size 6 shoe in the United States is size 3.5 in England. A function the converts shoe sizes in England to those in the United States is f(x)= x...
September 20, 2015

Math
At a speed of 45 yards per minute, a 120 pound swimmer burns 600 calories per hour. Use two different methods to write a linear equation that models the number of calories burned per hour as a function of a swimmer's weight
August 31, 2015

acct ii
A company has $314,000 in credit sales. The company uses the allowance method to account for uncollectible accounts. The allowance for doubtful accounts now has a $1,890 debit balance. If the company estimates that $8,160 of accounts will be uncollectible based on an aging of ...
August 21, 2015

Math
Thanks I figured it out. The definition of x is the numbers since 1990.
June 23, 2015

Math
The number of prisoners measured in thousands can be described by the polynomial -2.06x^2+77.85x+750. According to the polynomial, by how much did the prison population increase from 2002 to 2007?
June 23, 2015

algebra
Alice puts money into two accounts, one with 2% annual interest and another with 3% annual interest. She invests 3 times as much in the higher yielding account as she does in the lower yielding account. If her total interest for the year is $27.50, how much did she invest in ...
June 18, 2015

Chemistry
A piece of copper 12 cm long, 8.5 cm wide, and .50 cm thick has a mass of 457 grams. What is its density? D = m/v D = 457 g / 12x8.5x.50 D = 457 / 51 = 8.96 g/cm^3 Is this correct?
June 10, 2015

chem
A sample of hydrogen with a volume of 800 mL exerts a pressure of 620 mm Hg at 5°C. Approximately what volume will it occupy at standard temperature and pressure? V2=800x620x273/760x278 =135,408,000/211,280 V2=640.9 mL Can someone tell me if I'm correct or not?
May 19, 2015

polynominals
The number of trout in America, since 1970, is given by the following: y = x^2 + 3x + 2, where x is the number of years and y is the number of trout in millions. What is the number of trout in the years 1975, 1980, and 1985?
April 27, 2015

algrebra
A scientist is working with 1.3m of gold wire. How long is the wire in millimeters? Be sure to include the correct unit in your answer.
April 23, 2015

algebra
I need some help with this math problem: Let n be the number of oil refineries at t years since 2005. A reasonable model of oil refineries is n= -2.23t + 210.53. What is the slope of this model? What does it mean in this situation?
April 15, 2015

English
3. Trainers can teach dolphins to jump through hoops. 6. We sung the song so many times we knew it by heart. Is it correct now?
March 31, 2015

English
Change the passive verbs to active verbs. Can you please tell me if these are correct or not? 1. The candles were lit by Father after we were called to dinner by him. Father lit the candles after he called us to dinner. 2. A beautiful sweater was received by Kokila from her ...
March 31, 2015

algebra
square root 2 (square root 10+8 square root2)
March 12, 2015

Physics
39- turn coil 3.20 cm 1.00 Ω B= 0.0100t + 0.0400t2 T= 5.40s lƩl =ΔφB/Δt = N (dB/dt)A =N[d/dt (0.0100t + 0.0400 t^2)A =39(0.0100 + 0.0800(5.40))[π(0.0320)^2] =0.05545 =5.55 x 10^-2 V =55.5 mV
March 3, 2015

math
40
February 23, 2015

Chemistry
A balloon filled with 1.35 atm of dimethyl ether gas and 5.25 atm of oxygen gas at 27 °C has an initial volume 2.00L They react according to the following reaction: C2H6O (g) + 3 O2 (g) -> 2 CO2 (g) + 3 H2O (g) The system is allowed to back cool down to 27 °C ...
February 19, 2015

physics
Paul lifts a sack weighing 245 newtons vertically from the ground and places it on a platform at a height of 0.7 meters. If he takes 10 seconds to do this task, what power has he expended during this time?
February 18, 2015

statistics
An automotive manufacturer has selected 10 car seats to study the Rockwell hardness of the seat recliner mechanism. A sample of 8 has an average of 44.795 and a standard deviation of 0.402. At 95% percent confidence level, what is the interval for the population mean?
February 9, 2015

statistics
A sample distribution (closely approximating a normal distribution) of a critical part dimension has an average of 11.85 inches and a sample standard deviation of 1.33 inches. The lower specification limit is 11.41 inches. The upper specification limit is 12.83 inches. What ...
February 9, 2015

statistics
A manufacturer of light bulbs has sampled 40 bulbs in order to determine the population mean life of the bulbs. The sample mean was 1,200 hours with a standard deviation of 100. The manufacturer would like to know, with 95% confidence, the interval values for the population mean
February 9, 2015

Science
a
January 12, 2015

College Math
15
December 21, 2014

BUSINESS MATH
: The Crescent Corporation just paid a dividend of $2 per share and is expected to continue paying the same amount each year for the next 4 years. If you have a required rate of return of 13%,
December 17, 2014

BUSINESS MATH
: The Crescent Corporation just paid a dividend of $2 per share and is expected to continue paying the same amount each year for the next 4 years. If you have a required rate of return of 13%, plan to hold the stock for 4 years, and are confident that it will sell for $30 at ...
December 8, 2014

BUSINESS MATH
Moore Company is about to issue a bond with semiannual coupon payments, a coupon rate of 8%, and par value of $1,000. The yield-to-maturity for this bond is 10%.
December 8, 2014

BUSINESS MATH
Part B: The Crescent Corporation just paid a dividend of $2 per share and is expected to continue paying the same amount each year for the next 4 years. If you have a required rate of return of 13%, plan to hold the stock for 4 years, and are confident that it will sell for $...
December 8, 2014

BUSINESS MATH
The Crescent Corporation just paid a dividend of $2 per share and is expected to continue paying the same amount each year for the next 4 years. If you have a required rate of return of 13%, plan to hold the stock for 4 years, and are confident that it will sell for $30 at the...
December 8, 2014

IT
What enhanced security features does Microsoft Corporation offer/provide?
December 4, 2014

Communications
Why is it important that technology companies (Windows, Apple, etc.) make their products easily accessible for their consumers?
December 3, 2014

physics
a gun fires Aa bullet of mass 50g the bullet moving with a velocity of 100m/s strikes a sandbag get embedded after travelling 10cm calculate the resistance force exerted by the sand bag on the bulle
August 24, 2014

statistics
Kindergarten children have heights that are approximately distributed normal. A random sample of size 20 is taken and the mean x and the standard deviation s are calculated ( x = 40 inches and s = 3). a. Is there sufficient evidence to indicate that the mean of kindergarten ...
August 3, 2014

Chemistry
Consider the unbalanced redox reaction: Cr2 O7 2-(aq) + Cu(s) ----> Cr3+(aq) + Cu2+ Balance the equation in acidic solution and determine how much of a 0.850 M K2 Cr2 O7 solution is required to completely dissolve 5.25 g of Cu.
July 22, 2014

Calculus
(i) A 20m chain with a mass-density of 3kg/m (coiled on the ground). How much work is performed lifting the chain so that it is fully extended (and one end touches the ground)? (ii) How much work is performed to lift 1/4 of the chain?
May 12, 2014

Chemistry
Consider the following reaction: CaCO3(s)→CaO(s)+CO2(g). Estimate ΔG∘ for this reaction at each of the following temperatures. (Assume that ΔH∘ and ΔS∘ do not change too much within the given temperature range.) A) 310K and is it ...
May 12, 2014

Physics
oh 200 thanks
May 11, 2014

Physics
So what would the magnitude be then?
May 11, 2014

Physics
Bob is pulling a 30kg filing cabinet with a force of 200N , but the filing cabinet refuses to move. The coefficient of static friction between the filing cabinet and the floor is 0.80. What is the magnitude of the friction force on the filing cabinet? Express your answer to ...
May 11, 2014

ALG
1 r = 1 r1 + 1 r2 for r2
April 4, 2014

physics
A boy with a mass of 50 kg is hanging from a spring with a spring constant of 200 N/m. With what frequency does the boy bounce up and down?
March 12, 2014

2 question
Connections academy Edtech Unit 6 lesson 1 1. B 2. A 3. D
February 17, 2014

Personal Dimensions of Education
are
February 16, 2014

SCIENCE --- CHECK MY WORK PLS
4/4
February 3, 2014

south carolina history
Hi, did you every get the answer?
February 2, 2014

physics
480 N?
January 29, 2014

physics
The above equation is wrong
January 10, 2014

SCIENCE? HELP!
a i think
December 16, 2013

psychology
what might be some of the things that you could use as test items that would tap into this general form of intelligence that would not be overly affected by cultural matters? If not, why not?
December 11, 2013

english
the blank democratic movement slowly grew stronger as more people began to desire free elections. a:convened b:embarked c:incipient d:generated think its b
December 2, 2013

Chemistry
Hi, I'm a little stuck on this problem: Find the pH of the Hydrochloric acid solution when 5.0 mL of concentrated HCl, with a specific gravity of 1.18 and has 37% (w/w) purity is diluted to 2.0L
November 11, 2013

Physics
A spherical source radiates sound uniformly in all directions. At a distance of 12 m, the sound intensity level is 100 dB. At what distance from the source is the intensity level 40 dB? When I set it up as 100dB/40dB = r^2/(12m)^2, and got x = 18.97 meters, i was told this ...
October 22, 2013

Physics
A spherical source radiates sound uniformly in all directions. At a distance of 12 m, the sound intensity level is 100 dB. At what distance from the source is the intensity level 40 dB? When I set it up as 100dB/40dB = r^2/(12m)^2, and got x = 18.97 meters, i was told this ...
October 22, 2013

Physics
A spherical source radiates sound uniformly in all directions. At a distance of 12 m, the sound intensity level is 100 dB. At what distance from the source is the intensity level 40 dB? When I set it up as 100dB/40dB = r^2/(12m)^2, and got x = 18.97 meters, i was told this ...
October 22, 2013

Help
A result from being multiplied A. Product B. Quotient C. Multiplier D. Expression i say A but i got that wrong so im confused
October 9, 2013

vocab
i mark that and got that wrong i don't understand how that's wrong
October 9, 2013

vocab
A result from being multiplied A. Product B. Quotient C. Multiplier D. Expression a
October 9, 2013

history
2. William Lloyd Garrison’s The Liberator was known for appealing to its readers’ sense of (1 point) A. moral correctness. B. modern convenience. C. economic concern. D. social status. a
October 6, 2013

Physics
while john is traveling along an interstate highway, he notices a 160-mile marker as he passes through town. later john passes another mile marker, 115. a. what is the distance between town and john's current location? b.what is john's current location?
September 2, 2013

Physics
WHat is value of R please? cannot figure out.
May 22, 2013

Science
A 0.2 kg object is released from rest at point A on a track that is one-quarter of a circle with radius 1.6 m, as shown in the figure. It slides down and reaches point B with a speed of 4.8 m/s. Then it slides on a level surface a distance of 3 m until it comes to rest at ...
May 15, 2013

Math
How do you know when you should re write as a mixed number or simplify; for example. 1 1/2 x 23/9= 3/1 x 23/9= 69/18= what is the way to tell if I should simplify or re write as a mixed number?
April 24, 2013

Physics
A 20 mH inductor in series with a resistance of 55 ohms is connected to a source whose voltage is = 310 V cos 150πt, where t is in seconds. (a) Determine the maximum current in the circuit. (I solved this already, I=5.63A) (b) Determine the maximum and rms voltages across...
April 17, 2013

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