# Posts by barbara

Total # Posts: 322

**calculus**

x^2+5X/(x^3-25x)(x-5)^-1

**Math**

What is the interest due on $57,000 at 7 1/2% from June 2008 until today

**Science**

Planet X is now consider a Kuiper belt object. True or False

**Math**

parallel to 3x - 4y + 4 = 0 with the same x-intercept as y = 1/2 x -4

**Science**

How will precession of the Earth's rotation axis affect the month when the Sun will be in the current constellation in the future?

**Science**

In which constellation is the Sun currently located?

**Astronomy**

How can Google Earth be used to access the size of the Earth?

**Astronomy**

What type of spectrum is sunlight?

**Astronomy**

Why is the portion of the Moon opposite the direction of the Sun not apparent?

**Astronomy**

What type of lines does the solar spectrum show?

**Astronomy**

Why is the portion of Venus opposite the direction of the Sun not apparent.

**Astronomy**

How large should Venus appear in arc seconds? Use the small angle formula and the diameter of Venus. Note that an arc second is a 1/60th of an arc minute, and an arc minute is a 1/60th of a degree.

**Astronomy**

Why is it possible that the Sun may then have been in a different constellation than your "Sun Sign" on August 12, 1953.

**Astronomy**

What is my Astrological "Sun Sign" and how was it determine if I was born on August 12, 1953.

**Astronomy**

If I was born on August 12, 1953 what is the constellation of my Astrological"Sun Sign".

**physis**

Search: 2. Explain how radioactive decay has always warmed the Earth from the inside, and nuclear fusion has always warmed Earth from the outside.

**Penn foster**

With respect to major rivers, the Mekong is to Vietnam as the Irrawady is to

**interpersonal communications**

because words have human senders and receivers, they also have multiple intentions and interpretations. True or False

**Chemistry-Stoichiometry**

what is the limiting reactant if 0.10 moles Fe and 0.16 moles O2 react according to the reaction 4Fe +3O2 -> 2Fe2O3?

**Math**

During a semester, a student received scores of 76, 80, 83, 71, 80, and 78 on six tests. What is the student's average score for these six tests?

**Math**

how do I work this problem step by step? 3yd5ft + 6yd2ft This is how I worked the problem 3 yd 5ft +6 yd 2ft 9yd 7ft

**help please**

It is recommended that a person ________ to manage and reduce stress. A. Talk to family and friends B. Eat more frequently C. Beat oneself up D. None of the above I think its a?

**help please**

Cosmetic surgery is more likely to lead to disappointment if a person is ________. A. Seeking surgery with the hope of influencing a change in oneself B. Seeking surgery with the hope of influencing a change in someone else C. Seeking surgery with the hope of influencing a ...

**Business Math**

Office Market is having a sale on printer paper. If you buy 2 reams for $8.99 each, you will get a third ream free. Calculate the markdown percent. (Round the percent to the nearest tenth.) If the offer were changed to “Buy 3, Get 2 Free,” what would be the new ...

**algebra**

Find the distance, d,across the river. Assume that the ratio of d to 90ft is the same as the ratio of 100ft to 50ft

**economics 1, bus 121**

how do i write a macroeconomic analysis on a foreign currency(brazil)vs. united states dating back 2005-2010, including etf? need help

**Math**

Maria leaves her house to meet jane at the zoo. Jane lives further away than Maria and drives 8mph fatser than Maria. Their combined distance is 84 miles. If they both drive 45 minutes, find their average speeds.

**bramalea secondary school**

how many ways can you roll a pair of standard dice without getting a double?

**Algebra**

how can i break this down .2y+4.2=

**Sociology**

yes

**math**

What would 350 dollars at 5 % compounded semi annually for 40 years amount to?

**Math**

Tanya had $1.19 in coins none of the coins were dollars or 50-cents pieces.Josie asked Tanya for change for a dollar, but she did not have the correct chang.Which coins did Tanya have?

**math for business and finance**

dick hercher borrowed $7,000 to travel to london. his loan is to be paid in 48 monthly installments of $190. at the end of 14 months, dick decides to pay off his loan. what is the final payoff dick will make?

**communication**

How does language allow self reflecting, organize perceptions, allow hypothetical thought

**Physics**

if rock A is dropped from a cliff and rock B is thrown downward off the cliff, which of the two has a greater velocity?

**Finance**

"annual raises must average 4% per department among 6 team members. No team member can get exactly 4%, and the raise must be at least 2% and no more than 6%." How do I start this?

**history**

What incident abroad marked the election day of the 1956 election, thereby enhancing Eisenhower's bid for a second term? A. The crisis in the Formosa Straits B. The French defeat in Indochina C. An attack on U.S. Marines in Beirut D. The resolution of the Suez crisis

**Chemistry**

If the pressure of 2.50ml gas were doubled from 0.500atm to 1.00atm what would be the gas volumn at the new pressure?

**English**

What literature do you consider to be part of the United States' current literary canon? Why?

**Math**

Lineing up the decimals then subtracting. 9.61-0.268 . I need to know how?

**Bus Stat**

Statistics: Many track hurdlers believe that starting in the inside lane closest to the field has better chance of winning. closest to the field is lane 1, nxt is lane 2, etc until Lane 6. find the critical value x20 to test the claim that the possibilities of winnin are the ...

**HCR 210**

Select an accreditation agency and name an area of records management that is affected by its guidelines. How does accreditation affect the practical activities of record management in hospitals?

**Introduction to Hospital Billing - 8**

The first step in coding is to read the record for the purpose of ______________.

**COLLEGE ALGEBRA**

THE PRIMETER OF SOME TRAFFIC SIGN MUST BE 78INCHES ALSO ITS LENGTH IS 7INCHES LONGER THAN ITS WIDTH FIND THE DIMENSIONS OF THE SIGN WHAT IS THE LENGTH WHAT IS THE WIDTH

**chemistry**

should add 3tsp salt/1 cup olives. accidentally added 6 tsp. Each tsp weighs 5 grams and has 2300 mg sodium. how much sodium was added?

**Math**

The cost will be the same so its 12.5

**statistics**

Of 1735 people who came into a blood bank to give blood, 373 people had high blood pressure. Estimate the probability that the next person who comes in to give blood will have high blood pressure.

**algebra**

In the following problem, what property allows you to add the 17 and the 3 together before adding the 15?

**history**

what enent set precedence that alleviated the problem of having no law of succession in the empire

**history**

what is the last name of the two roman senators who fought for the rights of the poor and were killed for doing so

**algebra**

what is the unit price of a 5 poung bag of potatoes selling for $4.75

**college physics**

a railway freightbcar whose mass is 15 000kg & speed is 2.4m/s runs into a stationary freight car whose mass is 25 000kg. the 2 cars couple & roll off the track. what is the speed if the 2 cars as tey move together down the track? and how much kinetic energy is lost in the ...

**calculus 1a**

simplify the following expression tan(sin^-1(2x))

**Psy**

d)ecological

**calculus**

An oil can is to have a volume 1000in^3 and is to be shaped like a sylinder with a flat bottom but capped by a hemisphere. Neglect the thickness of the material of the can and find the dimensions that will minimize the total amount of material needed to construct it.

**calculus**

Each page of a book will contain 30 in squared of print, and each page must have 2 inch margins at top and bottom and 1 inch margin at each side. What is the minimum possible area of such a page.

**chemistry**

Need the formula to figure out the answer to question calculate the mass in grams of 4.08*10 negative 8 mol of neon

**statistics**

You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 90 percent confidence level and state that the estimated proportion must be within 2 percent of the population proportion. A pilot survey reveals that 7 of the 50 ...

**algebra**

solve by the substitution method: 8m+n=47 m-5n=52 thank you having trouble completing please show all work so I can learn better

**Chem 121**

A solution is made by dissolving 0.35 mole of LiI in enough water to give a final volume of 260.0 mL. What is the molarity of the solution?

**Chem 121**

How many grams of NaOH are present in 9.0 mL of a 8.0% (m/v) NaOH solution

**math**

As*A= Man A Represent what number?

**Accounting**

MHS currently has $1,150,000 in cash. How long would it take them to accumulate $2,000,000 in cash? Assume an interest rate of 5%.

**accounting..help plz urgent!**

All of the above

**Math**

99 employees in a factory earn a salary of $28,000 per year, while the CEO makes $766,000 annually. What are the mean and median salaries for all 100 people? Is the mean or the median the more appropriate measure of "center" in this case? Explain. I have been working...

**Math**

99 employees in a factory earn a salary of $28,000 per year, while the CEO makes $766,000 annually. What are the mean and median salaries for all 100 people? Is the mean or the median the more appropriate measure of "center" in this case? Explain. I have been working...

**Math**

99 employees in a factory earn a salary of $28,000 per year, while the CEO makes $766,000 annually. What are the mean and median salaries for all 100 people? Is the mean or the median the more appropriate measure of "center" in this case? Explain. I have been working...

**Math**

99 employees in a factory earn a salary of $28,000 per year, while the CEO makes $766,000 annually. What are the mean and median salaries for all 100 people? Is the mean or the median the more appropriate measure of "center" in this case? Explain. I have been working...

**Chemistry**

Zn + HCl --> ZnCl2 + H2 If 18 grams of Zn are used in the following reaction, how many grams of H2 will be produced?

**Chemistry**

2C2H6 +7O2 --> 4CO2 + 6H2O If 6 moles of O2 are used in the following reaction, how many grams of CO2 will be produced?

**Chemistry HELP!**

Titration experiment to determine the molar mass and dissociation constant of a weak acid, using NaOH

**Chemistry HELP!**

a) How would a too low molarity of NaOH affect the calculated molar mass of the unknown acid? b) How would it affect the calculated Ka of the unknown acid? If mistakenly calibrated pH meter using pH6 buffer instead of pH7 buffer, all ph meter readings were too low.... how ...

**Chemistry HELP!**

a) How would a too low molarity of NaOH affect the calculated molar mass of the unknown acid? b) How would it affect the calculated Ka of the unknown acid? If mistakenly calibrated pH meter using pH6 buffer instead of pH7 buffer, all ph meter readings were too low.... how ...

**Chemistry**

1.What is the molarity of a solution of silver perchlorate, AgClO 4, if 3.2 moles of silver perchlorate are dissolved in 1.5 liters of water?

**Chemistry**

1.What is the molarity of a solution of silver perchlorate, AgClO 4, if 3.2 moles of silver perchlorate are dissolved in 1.5 liters of water?

**Math: Rational Exponents**

simplify completely. give your answer without fractional exponents. (8(s^-3)*(t^5))^(3/5)/(2(s^7)*(t^-2))^(3/5))

**Statistics**

A student score 78 on his statistics test where the average score was 90 the the standard deviation was 7.

**statistics**

what is the variance and standard deviation for the group of numbers: 28 27 48 52 77 29 30 31 60

**business math**

$16,926.24

**math**

100+87+95+125+210+250+57=924\7=132

**chemistry**

How many grams of AgNo3 are required to make 25 mL of a .80M solution?

**MTH 156**

On a map, the length of a nature-center trail is 8.2 centimeters. If the scale is 3 centimeters to 24 kilometers, what is the actual length of the trail.

**Math**

when two fair dice are rolled find the probability that the sum is even and greater than 8

**statistics**

Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,225 per hour and a standard deviation of $220. What is the operating cost for the lowest 5 percent of the airplanes?

**Statistics**

The closing price of Schnur Sporting Goods, Inc., common stock is uniformly distributed between $17 and 35 per share. What is the probability that the stock price will be: More than $31? Less than or equal to $23?

**statistics**

A normal population has a mean of 21 and a standard deviation of 5. Compute the z value associated with 24 What proportion of the population is between 21 and 24? What proportion of the population is less than 18?

**Chem 141**

Write the three thermochemical equations needed to calculate the delta H for the below reaction.? 2Mg(s) + O2(g) --------> 2 MgO(s) delta H rxn = ? (Include delta H values in kJ for each reaction)

**Accounting**

Bank Stmt Balance $4270.00 Add Rejected Checks 140.00 Deposited Checks 1650.00 Ending Balance $6060.00 Book Balance $4000.00 Add Checks Issued 2500.00 Cust Pd Direct 170.00 Dividend 250.00 Deduct Staples Order -700.00 Bank Charges -160.00 Ending Balance $6060.00

**Statistics**

For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population: A. a sample of 10 with a mean of 44. B.a sample of 1 with a mean of 48. The general population of ...

**Statistics**

For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size 3.

**Soc.331**

Discuss current trends affecting social welfare. Do modern trends favor the solution of social issues? What are the most effective social welfare organizations today in your opinion, and why?

**Marketing 421**

Hewlett-Packard sells personal computers through specialty computer stores, electronics superstores, and its own Internet site. What is the marketing mix variable that is being considered here?

**Algebra 1**

find the domain of the function: g(x)=2/5-9x

**algebra**

I had the answer 34 I just wanted to know if I had done it correct. Thank you.

**algebra**

For three consecutive passes the football team gained 10 yards and then loses 23 yards and then gains 47 yards. What is the total net yardage?

**Algebra**

is it that simple? is there a formula like x + something?

**Algebra**

The measure of the compliment of an angle is 1/9th the measure of the angle. Find the measure of the angle

**Public Finance**

Suppose the marginal social cost of television sets is $100. This is constant and equal to the average cost of television sets. The annual demand for television sets is given by the following equation: Q = 200,000 – 500P2. If television sets are sold in a perfectly ...

**Pre-Algebra**

Write a variable expression for 9 less than k

**marketing**

The marketing manager at Massimino & McCarthy, a chain of retail stores that sells men's clothing, is reviewing marketing research data to try to determine if changes in marketing strategy are needed. Which of the following sources of data would be a secondary data source?