Wednesday
October 1, 2014

Posts by anonymous


Total # Posts: 71,484

physics
Points A, B, and C are at the corners of an equilateral triangle of side 9 m. Equal positive charges of 11 mu or micro CC are at A and B. (a) What is the potential at point C? how do I find the potential?
September 24, 2014

algebra
A telemarketer claims that every call made to a customer costs at least $2, if a call costs $.50 plus $.10 for each minute, how long does each call last
September 24, 2014

Examination Number
. Among instances of corporate malfeasance in the early twenty-first century, the _______ scandal was the most shocking and economically damaging for employees and shareholders
September 24, 2014

English
When a goal states a quantifiable indicator of its achievement such as a target date, it is:
September 24, 2014

Biology
How are RNA bases freed up during transcription to form base pairs?
September 24, 2014

Biology
During transcription, when RNA nucleotides form base pairs with the DNA template, does this mean that RNA nucleotides and DNA nucleotides pair up?
September 24, 2014

Pre-Calculus
ahh okay thanks
September 24, 2014

Pre-Calculus
help please in what form is the following linear equation written: 3x-2y=4 Slope-intercept Point-slope Standard Rise-run
September 24, 2014

Chem
16.3 L N2 at 25 °C and 125 kPa and 40.7 L O2 at 25 °C and 125 kPa were transferred to a tank with a volume of 5.50 L. What is the total pressure at 45 °C?
September 24, 2014

math
It is equally probable that stock A will have a +10% or -10% rate of return The only other possibility is that it will return 0%.The probability of 0% is twice that for a return of +10%. What is the expected return and Standard deviation of the return for stock A?
September 24, 2014

Chemistry
The solubility of acetanilide in your recrystallizing solvent is 5.0 mg per mL at 10 degrees Celsius. Calculate the maximum percent recovery in this experiment, assuming a 15.0 mL recrystallizing solution is filtered at 10 degrees Celsius.
September 24, 2014

Physics of Modern Technology
1) In a conventional explosion, when each molecule of high explosive chemically reacts, it produces about 4 x 10-18 J (joules) of energy. If each molecule of high explosive weighs as much as a single uranium 235 atom, and each uranium atom releases about 4 x 10-11 J in a ...
September 24, 2014

physic
A stone drop from the edge of the roof of a multistoried building. Calculate the teme taken by the pot cross to a particular distance AB of height 2.9m, the upper point A being 19.6m below the roof.
September 24, 2014

Calculus I
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
September 24, 2014

calculus
Find the interval [a, b] on which the function f(x) = 2 x3+3 x2−12 x+3 is decreasing. Enter your answer as: [a, b] for some constants a, b.
September 24, 2014

Chem Check Please!
What type(s) of chromatography is/are most appropriate for solids? Explain ----Liquid-Solid Chromatography ----Thin-Layer Chromatograph What type(s) of chromatography is/are most appropriate for liquids? Explain ----High performance liquid chromatograpy Thanks!
September 24, 2014

Chm 203
On a size exclusion separation column (e.g. Sephadex) would you expect the longer or shorter chain length compound to be eluted first? Why? Explain? Thanx!
September 24, 2014

French
What is the difference between aller and vas? What is the difference between these two sentences? Il parle à Marie. Il parle de Marie.
September 23, 2014

physics
A spring with a spring constant of 53.0 N/m is attached to different masses, and the system is set in motion. What is its period for a mass of 2.7 kg?
September 23, 2014

physics
A basketball player throws the ball at a 60° angle above the horizontal to a hoop whose centre is located a horizontal distance L = 8.60 m from the point of release and at a height h = 0.80 m above it. What initial speed is required if the basketball is to reach the centre...
September 23, 2014

Meth
18. Jared wants to rent a car. They charge $39.95 per day plus miles. The first 100 miles are free, but the company charges $0.20 per mile after that. If Jared has $50, what is the range of number of miles he can drive if he rents the car for one day?
September 23, 2014

physic
The distance between two nearest nodes of a standing wave is 16.3 cm. Hand generated pulses move up and down through a complete cycle four times every seven seconds. Find the velocity of the wave. Answer in units of m/s.
September 23, 2014

ratios
what is the ratio of 4/5 over 1/6 in simplest form
September 23, 2014

Physic
19.77
September 23, 2014

Physic
The distance between two nearest nodes of a standing wave is 17.3 cm. Hand generated pulses move up and down through a complete cycle four times every seven seconds. Find the velocity of the wave. Answer in units of m/s.
September 23, 2014

physics
A rock dropped into a pond produces a wave that takes 15.7 s to reach the opposite shore, 24.3 m away. The distance between consecutive crests of the wave is 3.5 m. What is the frequency of the wave?
September 23, 2014

math
A box of 20 Crunchy Munchy cookies costs $2.50 and a box of 40 Crunchy Munchy cookies costs $4.00. One quart of milk costs $1.50. Which of the following options costs less?
September 23, 2014

Physics
q
September 23, 2014

Fractions (not decimals)
5 23/92 = 5 1/4
September 23, 2014

Fractions (not decimals)
(60 3/8) / (11 1/2) = (483/8)/(23/2) = (483/8)*(2/23)= (966/184)= 5 46/184 = 5 23/92
September 23, 2014

Math
Find two numbers the exact answer is between 6x7381
September 23, 2014

science
Sorry, I meant to ask if all organisms reproduce?
September 23, 2014

science
Do all animals reproduce?
September 23, 2014

calculus
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
September 23, 2014

calculus
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
September 23, 2014

math
solve x+2=2x+1
September 23, 2014

algebra 2
The average score on a standardized test is 750 points with a standard deviation of 50 points. What is the probability that a student scores more than 700 on the standardized test?
September 23, 2014

Chemistry
A hydrogen atom has a mass of 1.673x10^-24 g How many hydrogen atoms would you have in 5.6 g of hydrogen?
September 23, 2014

Math
Jasmine has 8 pack of candle wax to make scented candles. Each pack contain 14ounces of wax. Jasmine uses 7 ounces of wax to make one candle . How many candles can she make
September 23, 2014

chemistry
10. A student weight out a 25 g sample of NaCl, SiO2 and NH4Cl. The student determines the sample contains 3.0 g NH4Cl and 7.0 g SiO2. What is the percentage of NaCl by mass (weight) in the sample?
September 23, 2014

Pre-calculus/Trignometry
Which of the following is a correct equation for the line passing through the point (-1,4) and having slope m = -3? A. y-4=-3(x+1) B. y=-3x+1 C. 3x+y=1 D. y=-1/4x-3
September 23, 2014

Algebra 2
Explain how to find the slope of a line from a table of data.
September 23, 2014

math
The Sandersons are planning to refinance their home. The outstanding principal on their original loan is $100,000 and was to amortized in 240 equal monthly installments at an interest rate of 11%/year compounded monthly. The new loan they expect to secure is to be amortized ...
September 23, 2014

lac 2
4. Critics often say that Chekhov’s short stories show “slices of life” rather than complete story arcs. How do the endings of "Star Food," "Everything That Rises Must Converge," and "The Bet" reflect what might be considered ...
September 23, 2014

Science--Help.
Which of the following is NOT one of the eight most common elements in Earth’s continental crust? carbon silicon oxygen aluminum The most abundant element in Earth’s continental crust (by weight) is _____. 2. oxygen silicon calcium iron 3. The central region of an ...
September 23, 2014

ecu
test has a 500 mean with a sd of 150; with a score of .13% both negative and postive 2.14%
September 23, 2014

Math Help
Choose the word phrase that can be represented by 2 – p. the difference of a number p and 2 the quotient of 2 and a number p 2 more than a number p 2 decreased by a number p 2. Which word phrase could represent the variable expression 1/2a + 4? 4 more than half Chris’...
September 23, 2014

Precalculus
Find two values for theta such that theta is greater than or equal to 0 but less than or equal to 2pi. 1. Tan theta=1.1071 2. Sin theta = -0.8818
September 23, 2014

CHECK PLEASE
There where spammers here...but thank u
September 23, 2014

physics
What's the momentum of a 3.5-kg boulder rolling downhill at 5 m/s?
September 23, 2014

dana
Wich lets you put Equal groups toghether?
September 23, 2014

government
The purpose of the First Ten Amendments to the Constitution is to __________.
September 23, 2014

Calculus I
I have to determine if this function is either odd or even or neither. f(x)=x^3*abs(x^3) + x^3 I do not know how to approach this question as the absolute value is giving me trouble. Please help. Thanks.
September 23, 2014

College Pre-Calculus
find a function m such that m(f) is the number of miles in f feet
September 23, 2014

physics
33
September 22, 2014

help
A big luxury car weighing 1.96 x 104 N (about 4400 lb), travelling in the x direction makes a fast stop; the x component of the net force acting on it is -1.50x 104 N. What is its acceleration?
September 22, 2014

chemistry
How many grams of copper atoms are needed to supply the same number of atoms as does 235 grams of iron?
September 22, 2014

Analytical Chem
Yes, I do... The only part that I do not know is how to find the activity coefficients... [H+]=(x)(?)(x)(?)/0.05 The rest of the problem I can do... Thanks! :)
September 22, 2014

Analytical Chem
Use activity coefficients to find the concentration of hydrogen ions in a solution of 65.0 mM butanoic acid and 0.05 M NaCl. The ionization constant of butanoic acid is Ka = 1.52 × 10-5. Take the size of C3H7COO– to be 500 pm. Find [H+], pH, and alpha. Can you ...
September 22, 2014

Math
How do I calculate this problem? Add the operation signs and parentheses where needed. The number are 6 , 5 , 9 and 2 that equal 77 .
September 22, 2014

math
use the digits 3,5 and 7 to make two three-digit number with the greates possible sum.
September 22, 2014

Nouns
No. I just wanted to know. It's part of my homework and I'm in 4th grade.
September 22, 2014

math
he sales goal for your store this week is $22,682. The sales goal for your store this week last year was $20,128. Your store has averaged 1775 transactions per week for the last four weeks. What is the percent change in your sales goal from this week last year to this week ...
September 22, 2014

Math
Add the operation signs and parentheses where needed. 6 5 9 2 = 77
September 22, 2014

algebra 2
1. 5x+2>3x+10 =x>4 2. 8+2x< or equal too 6x-20 x> or equal too 7 3. 4(1-3n)-14>4(2n+3)-9n =? 4-12n-14>8n+12-9n 5. x/4<9 x<9*4=36 x<36 6. a/9>or equal to -15 a> or equal too -135 7. -p/7>-9 -p>-63 p<-63 8. -t/12> or equal too 6 -t>...
September 22, 2014

government
so for my algebra 2 question should i post it again?
September 22, 2014

government
i know :) but if there was what proposals would you make
September 22, 2014

government
ok
September 22, 2014

government
ohh and What proposals would you make for a new constitution?
September 22, 2014

government
i have 2 posts
September 22, 2014

government
yea i finally got it thank you though can u check my algebra 2 questions i'm struggling with them thank you.
September 22, 2014

government
The United States has a mixed economy and is able to regulate many business activities. • What are the benefits of government control over business activities? •Should the United States government have more control or less control over business activities?
September 22, 2014

algebra 2
4(1-3n)-14>4(2n+3)-9n =? 4-12n-14>8n+12-9n
September 22, 2014

algebra 2
1. 5x+2>3x+10 =x>4 2. 8+2x< or equal too 6x-20 x> or equal too 7
September 22, 2014

Math
Mount Baldy is the highest peak in the White Mountains of eastern Arizona. Its elevation is divisible by 3 and 9.Is the elevation 11,603;11,503;or 11,403 feet? Explain your answer,using the rules of divisibility.__________
September 22, 2014

Math
Aztec Peak in Arizona is the highest mountain in the Sierra Ancha Mountain Range. If the elevation of Aztec Peak is divisible by 2, is the elevation 7,963 or 7,964 feet? Explain your answer,using the rules of divisibility.______________
September 22, 2014

algebra 2
eight times a number is at least 16 define: inequality: 8n>16 solve:n>2
September 22, 2014

algebra 2
negative one sizth of a number is less than -9 define a variable: write an inequality: -1/6n<-9 solve: ?
September 22, 2014

algebra 2
negative 12 times a number is no more than 84 define a variable: write an inequality: -12n<84 solve: n>-7
September 22, 2014

algebra 2
one eighth of a number is less than or equal too 3 define a variable: write an inequality: 1/8 n < or equal too 3 solve: ?
September 22, 2014

algebra 2
define a variable, write an inequality, and solve each problem. check your solution 1. four times a number is greater than -48 define a variable: write an inequality: 4n>-48 solve: n>-12
September 22, 2014

algebra 2
-y<36 = y>36
September 22, 2014

algebra 2
x/4<9 x<9*4=36 x<36 a/9>or equal to -15 a> or equal too -135 -p/7>-9 -p>-63 p<-63 -t/12> or equal too 6 -t> or equal to 72 t< or equal too 72 how do u do these
September 22, 2014

math
Add the operation signs and parentheses where needed. 6 5 9 2 = 77
September 22, 2014

math
Follow the order of operations and find the missing number: 20+5 x(?+6)-12/2=64
September 22, 2014

Chemistry
4) Using your initial mass of copper (0.38), calculate the minimum volume of concentrated 12M nitric acid needed to completely react with your copper to form copper (II) nitrate 5) Using your answer from question 4 (2x10^-3 L), calculate the minimum volume of 6M sodium ...
September 22, 2014

Precalculus
Find two values for theta such that theta is greater than or equal to 0 but less than or equal to 2pi. 1. Tan theta=1.1071 2. Sin theta = -0.8818
September 22, 2014

pre cal
Find b, given that a = 18.2, B = 62°, and C = 48°. Round answers to the nearest whole number. Do not use a decimal point or extra spaces in the answer or it will be marked incorrect.
September 22, 2014

Math
So it would be 4x + 5 = 2x - 9 because it says 'five added to 4'
September 22, 2014

Math
Five added to 4 times a number is equal to 9 less than 2 times the number. 9x + 2 = 5x + 4 5x + 4 = 9x - 2 *my answer 4x - 5 = 2x + 9 4x + 5 = 2x - 9
September 22, 2014

physics
A speeder passes a parked police car at a constant speed of 39.2 m/s. At that instant, the police car starts from rest with a uniform 2 is overtaken by the police car? Answer in units of s acceleration of 2.77 m/s . How much time passes before the speeder
September 22, 2014

Math
14+2m = 4m - 16 (no multiple choice) I don't understand it 4(x +2) = 14 - 2(3 - 4x) (no multiple choice) Eight subtracted from 4 times a number is equal to 4 less than 6 times the number. (not multiple choice) my answer is 8x - 4 = 4x - 6
September 22, 2014

Finance
Use the following information to calculate the covariance of asset A with an equally weighted portfolio of assets B and C. Asset Standard Deviation A 20% B 30% C 40% The correlation coefficient between A and B is 0.6. The correlation coefficient between A and C is 0.5. The ...
September 22, 2014

physics
The masses of these particles are mA = 374 kg, mB = 516 kg, and mC = 155 kg. d1 = 0.414 m and d2 = 0.207 m. Calculate the magnitude of the net gravitational force acting on particle A.
September 22, 2014

physics
n
September 22, 2014

physics
m
September 22, 2014

algebra
a charges $50 for gate and $3.50 per foot b charges $75 for gate and $2.25 per foot how many feet of fencing would result equal estimates?
September 22, 2014

algebra
total $3.25 worth of coins nickels, dimes, quarters 2morenickels than dimes 1 more quarter than nickels how many of each coin
September 22, 2014

chemistry
In a butane lighter, 9.2g g of butane combines with 32.9g g of oxygen to form 27.8g g carbon dioxide and how many grams of water?
September 22, 2014

Math
For y=3 +7 cos 5 (theta - 28 degrees) Find y when theta=321 degrees
September 22, 2014

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