Sunday

August 30, 2015
Total # Posts: 1,293

**Algebra**

At noon a private plane left Austin for Los Angeles, 2100 km away, flying at 500km/h. One hour later a jet left Los Angeles for Austin at 700 km/h. At what time did they pass each other?
*November 16, 2009*

**9th grade**

At noon a private plane left Austin for Los Angeles, 2100 km away, flying at 500km/h. One hour later a jet left Los Angeles for Austin at 700 km/h. At what time did they pass each other?
*November 16, 2009*

**math riddle**

Find 2 Numbers to fit all these rules: 1. To the nearest ten and hundred, both round to be the same number. 2. The estimated sum is 200. 3 The estimated difference is 0.
*November 13, 2009*

**math riddle**

Find 2 Numbers to fit all these rules: 1. To the nearest ten and hundred, both round to be the same number. 2. The estimated sum is 200. 3 The estimated difference is 0.
*November 13, 2009*

**nutrition**

Compose an essay that answers the following questions: What arguments are being raised by the Grocery Manufacturers of America? Are they taking responsibility as contributors to the obesity epidemic? If yes, list them. If not, why not? Are they recommending restricting access ...
*November 11, 2009*

**Physics**

An airplane pilot tries to fly directly east with a velocity of 800.0 km/h. If wind comes from the southwest at 80.0 km/h, what is the relative velocity of the airplane to the surface of Earth?
*October 27, 2009*

**grammar**

the loser gets another chance
*October 20, 2009*

**math**

200,053
*October 19, 2009*

**math**

9.86 would be 10 5.47 would be 5 10-5 would be 5
*October 19, 2009*

**Math**

78.17 would round up to 80.00 and 37.52 would round up to 40.00. 80.00-40.00=40.00.
*October 19, 2009*

**Algebra 2 URGENT**

I can't tell you how to set it up but I can tell you that she invested $3000 at 9% and $1500 at 6%. 3000 x .09 = 270 1500 x .06 = 90 270 - 90 = 180
*October 18, 2009*

**algebra**

Henry paid $.80 for each bag of peanuts. He sold all but 20 of them for $1.50 and made a profit of $54. How many bags did he buy? (HINT: Profit = selling price-buying price.)
*October 18, 2009*

**calculus - identities**

prove this identity: sec(y) - cos(y)= tan(y)sin(y) THANK YOU!!
*October 16, 2009*

**calculus**

a rectangular piece of cardboard that measures 4 by 3 inches is to be formed into a rectangular box by cutting squares with length x from each corner and folding up sides. Find the volumes of the box in terms of x
*October 16, 2009*

**Finance**

B18) (Default risk) You buy a very risky bond that promises a 9.5% coupon and return of the $1,000 principal in 10 years. You pay only $500 for the bond. a) You receive the coupon payments for three years and the bond defaults. After liquidating the firm, the bondholders ...
*October 12, 2009*

**earth science**

list four methods that modern map-makers use to make accurate maps
*October 12, 2009*

**writing - thanks!**

Thank you very much =)
*October 7, 2009*

**writing - pronouns**

3. 3rd person 4. nominative 17. 1st person Are these right? Thanks for checking it!
*October 7, 2009*

**writing - pronouns**

Label the pronouns on upper case, either N for nominative case, O for objective case, or POS for possessive case. Indicate the person of each pronoun, using 1, 2, and 3 to indicate first, second, and third person. 1. Why do you want to go with US? --> objective, 1 2. The ...
*October 7, 2009*

**8th grade**

A loan officer..
*October 6, 2009*

**'bio'**

You're welcome =))
*October 6, 2009*

**biology**

Explain how the light reactions would be affected if there were no concentration gradient of protons across the thylakoid membrane. This is not a homework question. It's a 'challenge', if we want to do it. So I'm just interested :)
*October 6, 2009*

**writing**

Thank you soo much!! =)
*October 6, 2009*

**writing**

May/September - P Benjamin Franklin - P Father - P Constitution - P Governor Morris - P Pennsylvania - P Can you please tell me if weeks/days/nights would be collective? I know I identified them as COL but I don't think so.. Also, the word 'delegates'.. I really ...
*October 6, 2009*

**writing**

Thanks for the site! Now I'll try to do it.. and please give me some feedback! Philadelphia - P Constitutional Convention - P representatives - COL/C dozen - COL/C states - COL/C document - C George Washington - P president - C convention - C statesmen - COL/C James ...
*October 6, 2009*

**writing**

Identify the nouns using P for a proper noun, C for a common noun, and COL for a collective noun. It was written in Philadelphia at the Constitutional Convention. Fifty-five representatives from a dozen states drafted the document between May and September of 1787. George ...
*October 6, 2009*

**math 115**

What units in the metric system would you use to measure each of the following quantities?= The United States emitted 19.5 million t of nitrogen oxides (NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many kilograms of NO were emitted to the ...
*September 30, 2009*

**math 115**

What units in the metric system would you use to measure each of the following quantities?= The United States emitted 19.5 million t of nitrogen oxides (NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many kilograms of NO were emitted to the ...
*September 30, 2009*

**math 115**

Jerry earned $18,500 one year and then received a 10.5% raise. What is his new yearly salary?5875.20
*September 30, 2009*

**math**

i have to simplify and no it's 1/4)^2 / (1/2 - 3/4) + 5/7 .
*September 28, 2009*

**math**

(1/4)^2 / (1/2 - 3/4) + 5/7
*September 28, 2009*

**math**

A basketball player makes 50% of his shots taken, on a bad night his percentage drops by a factor of 1/2. If he took 12 shots, how many did he make?
*September 25, 2009*

**math**

how do I perform the indicated operation 20-(-5) ________ 20-(-|-5|)
*September 25, 2009*

**math**

what is the answer to (5-(3-4)*(2)*(7-8
*September 25, 2009*

**Economics**

.5 and inelastic
*September 21, 2009*

**math**

A reservior has a rectangluar base measuring 120 feet by 40 feet and is 9 feet deep.Find the area of the base and the amount of water the reservior holds when it is full.
*September 20, 2009*

**6th grade**

Multiply 13*(-7)
*September 19, 2009*

**science**

i need help on this question i need to find two ways to reduce the effects of mining i came up with one so far reclamation
*September 15, 2009*

**science**

does anyone know any metallic minerals
*September 15, 2009*

**science**

i need to know where i can find the list of metallic minerals and the nonmetallic minerals
*September 15, 2009*

**science**

so would my answer be mines and quarries
*September 15, 2009*

**science**

need some help with this question i need to know the two environments in which minerals form
*September 15, 2009*

**science**

i need help on this question i need to explain the four characteristics of a mineral
*September 15, 2009*

**world history**

people were able to settle in ancient eqypt because the blank helped support farming?
*September 15, 2009*

**science**

i need to know if this is correct would the answer be calcite and dolomite
*September 14, 2009*

**science**

need help with this question what kinds of environmentals cause a crystal to form
*September 14, 2009*

**really need some help with this**

i need some help on this question a diamond cutter has a raw diamond that weighs 19.5 carats and from which two 5-carat diamonds will be cut. i need to find out how much the raw diamond weigh in milligrams and plus how much will each of the two cut diamonds weigh in milligrams
*September 14, 2009*

**science**

i need some help on this question a diamond cutter has a raw diamond that weighs 19.5 carats and from which two 5-carat diamonds will be cut. i need to find out how much the raw diamond weigh in milligrams and plus how much will each of the two cut diamonds weigh in milligrams
*September 14, 2009*

**science**

need help with two questions need to list some uses of metallic minerals and then my other question i have to list some uses of nonmetallic minerals
*September 14, 2009*

**science**

i need help on a question a method of sending energy waves from a satellite to an area of earth being observed is my choices are conic projection GPS radar navigation
*September 14, 2009*

**writing**

Can someone grade my essay? The topic is: What are your thoughts on the idea that television has turned out to isolate people instead of bringing them together? Here it is! Does Television Interrupt Human Relationships? The television is a great invention and has brought ...
*September 14, 2009*

**Math**

Thanks so much! :D
*September 9, 2009*

**Math**

Museum employees are preparing an exhibit of ancient coins. They have 49 copper coins and 35 silver coins to arrange on shelves. Each shelf will have the same number of copper coins and same number of silver coins. How many shelves will the employees need for this exhibit? (...
*September 9, 2009*

**World History**

What exactly is the Ninity Five theses?
*September 9, 2009*

**physics**

Two equipotential surfaces surround a +1.61 10-8-C point charge. How far is the 191-V surface from the 68.0-V surface?
*September 8, 2009*

**physics**

During a particular thunderstorm, the electric potential difference between a cloud and the ground is Vcloud - Vground = 4.90 108 V, with the cloud being at the higher potential. What is the change in an electron's electric potential energy when the electron moves from the...
*September 8, 2009*

**physics**

A circular surface with a radius of 0.053 m is exposed to a uniform external electric field of magnitude 1.48 104 N/C. The electric flux through the surface is 72 N · m2/C. What is the angle between the direction of the electric field and the normal to the surface?
*September 8, 2009*

**math 115**

the question is asking me to divide 4 and 1/5 by 14 and write the results in the simplist form? Can u give me a simular problem and show me how to work it?
*September 5, 2009*

**math 115**

i want to make sure i am correct in my answer. The question is what is 7/8 of 10/14? i thought the answer is 3/6 is this correct?
*September 5, 2009*

**physics**

A small plastic ball with a mass of 7.00 10-3 kg and with a charge of +0.162 µC is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0° with respect to ...
*September 3, 2009*

**physics**

A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 7840 N/C. The mass of the water drop is 3.84 10-9 kg. (a) Is the excess charge on the water drop positive or negative?
*September 3, 2009*

**physics**

Four point charges have the same magnitude of 2.62 10-12 C and are fixed to the corners of a square that is 3.80 cm on a side. Three of the charges are positive and one is negative. Determine the magnitude of the net electric field that exists at the center of the square.
*September 3, 2009*

**physics**

A small spherical insulator of mass 1.90 10-2 kg and charge +0.600 µC is hung by a thin wire of negligible mass. A charge of −0.900 µC is held 0.150 m away from the sphere and directly to the right of it, so the wire makes an angle è with the vertical...
*September 3, 2009*

**math**

Write each fraction in simplest form 42 55, 17 51
*September 2, 2009*

**math**

let me repharse 5 lb/ft x 3 ftEvaluate the following. Be sure to use the proper units.
*September 2, 2009*

**math**

Evaluate the following. Be sure to use the proper units.5 lb/ft 3 ft
*September 2, 2009*

**physics**

Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the two naturally occurring electrons is removed. The radius of the orbit is 2.65 10-11 m. Determine the magnitude of the electron's ...
*September 2, 2009*

**physics**

The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 µC; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 µC and q3 = +4.50 µC. Determine the net force (magnitude ...
*September 2, 2009*

**physics**

The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 µC; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 µC and q3 = +4.50 µC. Determine the net force (magnitude ...
*September 2, 2009*

**Geometry**

find the coordinates of the missing endpoint given that S is the midpoint. Problem: T(-4,3),S(-1,5)
*September 1, 2009*

**Preschool dilemma**

well kids like to be read to so you could have story time. In my school when I was in third grade I got to do a product with the preschools. from Amber, P.S. what is a cow on sale?/riddle
*September 1, 2009*

**math**

i've got a question i need help on i've got to use braces, an ellipis, and digits to illustrate the set of negative odd numbers whats that suppose to mean
*August 25, 2009*

**math**

okay so i divided each side by 7 heres what i came up with 52/7 = 7R3 7/7=1 so would i take the answer from those and multiply to get my answer
*August 24, 2009*

**math**

i've got a problem i need help on its 52 * 7 = 7m i need to know which property to use to find the missing number
*August 24, 2009*

**math**

edwardo owned 6/7 of a family business. He sold 1/5 of the business to his son. What portion of the business does he still own/
*August 24, 2009*

**science**

i've got a question does anyone know what a concept map is?
*August 20, 2009*

**science**

i've got a question that i need help on what problems could occur if scientists didn't communicate the results of their investigations
*August 20, 2009*

**math**

question how would you subtract 1987 - 2014 = the answer i got is -27 or do i switch it
*August 20, 2009*

**math**

would it be equal
*August 20, 2009*

**math**

I've got a problem i need help on i need to find the proper comparison symbol the problem is xy yx
*August 20, 2009*

**math**

I've got a problem i need help on. i've got to use digits and other symbols to write the product of 5 and 2 is greater than the sum of 5 and 2 here is what i came up with (5*2) (5+2) i'm not sure what to do next
*August 20, 2009*

**ap english**

in slaughterhouse 5 what is the resolution of Billy being shot before he masters his fate?
*August 20, 2009*

**math**

i've got a question in my math its wanting to know why is the 1 called the multiplicative identity
*August 19, 2009*

**math**

I've got a problem i'm suppose to use number 3 and 4 to illustrate the communtative property of multiplication using a dot to indicate multiplication so would i write it like this 4*3 or 3*4
*August 19, 2009*

**English**

I've got a question i've got to use one of these words and, or, but, or nor to make the sentence flow smoothly Then Louise snagged the ball. She tied the score I thought about putting and in between ball and she would that sound right
*August 19, 2009*

**math**

i've got another problem the question is which counting numbers are also whole numbers i read this part in my book (the set of whole numbers does not include any numbers less then zero) so would it mean the numbers 1- 9 that are the whole numbers
*August 17, 2009*

**math**

i've got a problem the question is what is another name for counting numbers
*August 17, 2009*

**math**

heres what i came up with (6*6)+(6/6)= would that be the way to write it
*August 17, 2009*

**math**

i've got another problem my problem is when the product of 6 and 6 is divided by the sum of 6 and 6 what is the quotient would i have to divide first
*August 17, 2009*

**math**

got a question my problem is when the sum of 5 and 6 is subtracted from the product of 5 and 6, what is the difference would i have to divide or subtract
*August 17, 2009*

**English**

I need help with this one O/Ph. D. M. D. D.O
*August 13, 2009*

**English**

has anyone ever done the Thinkers worksheet before..if so where can i get all the answers
*August 13, 2009*

**English**

The word "can" is used to refer to?
*August 13, 2009*

**irrational numbers?!**

Is √4 Irrational?
*June 15, 2009*

**Algebra**

Which of the following ordered pairs is a solution of the given system of linear equation of -5x+4y=9 x-4y=11 A. (–4, –5) B. (5, –4) C. (4, 5) D. (–5, –4)
*June 10, 2009*

**Chemistry**

How many grams of KNO3 will dissolve in 100 g of hot water (100°C)?
*June 3, 2009*

**math**

camilla worked 71 hours in july how many minutes did camilla work in july
*May 30, 2009*

**Pre Cal**

Been trying to solve this equation and I keep getting 3...any advice would be appreciated log2 (x+5)=4+log2 (x-1)
*May 3, 2009*

**Exponential Equations**

HOw would you solve this equation 5^x+6=4 Correct me if I'm wrong so far.. x+6 ln5=4 Divide by x+6..which would be ln5=4/x+6...then what??
*May 1, 2009*

**Algebra II**

Find the accumulated value of an investment of $3000 at 9% compounded continuously for 3 years. Isn't the formula 3000e(0.09)x(3)??..which would be $2,201.81...but its wrong?!!..any suggestions would be greatly appreciated
*April 27, 2009*