Sunday

August 28, 2016
Total # Posts: 1,225

**algebra**

tugboat goes 160 miles upstream in 10 hours. The return trip downstream takes 5 hours. Find the speed of the tugboat without a current and the speed of the current. speed of tugboat is speed of the current is
*March 30, 2012*

**algebra**

method of substitution the perimeter of some traffic sigh must be 126 inches. Also its length is 11 inches longer than its width. Find the dimensions
*March 29, 2012*

**algebra**

use method of substitution to solve the system of linear equation 3x+4y=3/2 y=2x-1
*March 29, 2012*

**healthcare accounting**

what is the entry when we get a gift of $100,000 for cancer research only with the investments earnings also limited to cancer research?
*March 20, 2012*

**Thermo**

Calculate the standard cahnge in enthalpy for the combusation of coal/ Show the balnaced reaction. How does one get the balanced reaction of coal? Coal has many substances that make up its compsistion
*March 18, 2012*

**physics**

you kind of just droped 1/di there. where did it go? I just dont get how you got to: 1/di - 1/2di and then you went from 1/di - 1/2di = 1/2di.....you just droped 1/di. That doesnt make any since.
*March 17, 2012*

**math**

area of triangle with base of 1 3/4 and height of 4/5
*March 9, 2012*

**math**

20 jars per case
*March 5, 2012*

**Math**

I Have to answer the game, "what's my rule" I've tried everything. I do not know if the teacher made a mistake in the problem. When x=1, y=3 x=2, y=6 x=3,y=12 x=4, y=24 I see that Y is doubling, but I need a rule to use with variable Thanks!
*March 5, 2012*

**geometry**

is it a rectangle? 8 meters
*March 5, 2012*

**Algebra**

30 pigs and 40 chickens
*March 5, 2012*

**math**

h=(q-10)*.5
*March 5, 2012*

**trig**

Name three values of theta that would result in y equal to cot times theta being undefined.
*February 27, 2012*

**Math**

In a triangle the two larger angles differ by 10 degree. The smaller angle is 50 degree less than the largest angle. Find the measure of each angle. Just searching help on how to set it up.
*February 22, 2012*

**physics**

What reaction would you get from francium and water in outer space and what if you added hydrogen to the experiment as far as being used for fuel for travel
*January 17, 2012*

**Probability**

Well if you divide 12 children into 5 groups you might find yourself in jail....I'm just saying
*January 17, 2012*

**Math**

What's a shame is that this question is a graded problem from a college, and that the problem is not a difficult one to solve, and yet there is someone who (rather than working it out!!) has gone looking for someone else to work it out!
*December 25, 2011*

**College Math**

True or false conclude the functions of F(x) + 2xsquared - 2x +7
*December 12, 2011*

**Math**

True or false or conclude the functions f(x) = x squared - x + 7
*December 12, 2011*

**Geology**

I need to write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of metamorphic rocks. Can someone help me get started with this and on the right track? Thanks
*December 1, 2011*

**Geology**

I need to write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of igneous rocks. Can someone help me get started with this and on the right track? Thanks
*December 1, 2011*

**math**

solve sin t= .6 on the interval 0<t<2pi
*November 28, 2011*

**chemistry**

if 4.4 moles of copper metal was deposited from a solution of Cu(NO3)2, how many electrons were involved?
*November 21, 2011*

**Living environment**

asexual reproduction of the fittest
*November 17, 2011*

**calc**

p=2.30 per burger
*November 2, 2011*

**Composition**

just some ideas on what to compare and contrast to get me started
*October 28, 2011*

**Composition**

For this assignment you are to look at the ways courtship rituals have (or have not) changed over the last generation or two. In order to do this, you will be required to spend some time interviewing a parent, grandparent, or another member of an older generation to discover ...
*October 28, 2011*

**statistics**

A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day. The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal. a. What proportion of students drank 7 or more cups of ...
*October 20, 2011*

**physics**

A metal sphere has a charge of +6.4 C. What is the net charge after 4.1 x 1013 electrons have been placed on it?
*October 11, 2011*

**Fib. Number**

I noticed someone else is having problems with the same problem below that I am. Since I have a Matt in my class he is having the same problem I am and could use some help. Fib. numbers are not in my math book and I cannot find any help online with these type of problem 1. If ...
*October 2, 2011*

**Math Problem Solving**

You have a $9000 motorcycle and a $850 bicycle. The probability that your motorcycle will be stolen next year is .02, but the probability that your bike will be snatched is .1. The insurance company offers you theft protection for your motorcycle for $200 and theft protection ...
*September 28, 2011*

**Pre Calculus**

Factor Completely a. 3x^8-3x^6 b. 20a^2b^2x^2-45a^2b^2y^2
*September 13, 2011*

**math**

what does division mean?
*September 12, 2011*

**math**

what units are used when talking about area?
*September 12, 2011*

**math**

what is the math term with the letters enitmelgens unscrambled
*September 12, 2011*

**Math**

3 = r cos( + 240¡ã) x ¨C ¡Ì3 y + ? = 0
*September 6, 2011*

**History**

Are cattle raised in East Texas, West Texas, or both?
*September 6, 2011*

**melanie**

is it C
*September 2, 2011*

**melanie**

What is the average (arithmetic mean) value of the integers from -50 to 50, inclusive? a. -51/2 b. -25 c. 0 d. 25 e. 51/2
*September 2, 2011*

**math**

if x = 6 + y and y = -z/3, what does x equal in terms of z? a. 3(6+z) b. 3(z-6) c. 6-z/3 d. z/3-6 e. 6+z/3
*September 2, 2011*

**math **

Daphne ran a distance of 180 feet. Peter ran a distance of 15 yards. What is the ratio of the distance Daphne ran to the distance Peter ran? (3 feet = 1 yard) a. 4:1 b. 5:1 c. 6:1 d. 12:1 e. 36:1
*September 2, 2011*

**math**

thanks anyone! A right prism has a polygonal base with n sides. Each side has a length of 5 in. The altitude of the prism is 20 in. If the base had n+1 sides, each still having a side of length 5 in, by how much, in square inches, would the lateral area of the prism increase ...
*August 23, 2011*

**geometry**

Can anyone help me to solve this, please? A right prism has a polygonal base with n sides. Each side has a length of 5 in. The altitude of the prism is 20 in. If the base had n+1 sides, each still having a side of length 5 in, by how much, in square inches, would the lateral ...
*August 23, 2011*

**physics**

find the acceleration of a 3 kg mass as it moves with a constant speed of 4 m/s along a circle of radius 2 m.
*July 24, 2011*

**physics**

find the bouyant force on a copper obect that displaces 2.8 meters cubed of water
*July 24, 2011*

**Math**

simplify (cos4x-cos2x)/(sin4x+sin2x) the answer choices are : cotx, tanx, cotxtanx, or 1
*July 11, 2011*

**finance**

How do I mind out the value of this 5 oz, chunk of silver
*June 30, 2011*

**algebra**

solve square root of 72x to 3 power divided by 8x
*June 26, 2011*

**Statistics**

Which of the following values cannot be a probability? 0.5 0.00 0.85 1.00 1.02
*June 8, 2011*

**Body Structures & Functions**

The blood level of the brain gets the messeage and sends a releasing factor for_________ to the ________ gland.
*June 1, 2011*

**Applied Physics**

Which is a vector quantity? electric energy electric charge electric power electric field intensity
*May 29, 2011*

**Physics**

When a charge of -4 x 10 to the minus 3 coulombs is moved between two points in an electric field, 0.8 joules of work are done on the charge. The potential difference between the two points is 300 V.
*May 29, 2011*

**Math**

How do you know if a relation is a function?
*May 26, 2011*

**Statistics**

Select the best interpretation of the correlation coefficient r = -.87
*May 21, 2011*

**Statistics**

Use the multiple regression equation to predict a persons salary. Assume that the variable A is the number of years of college. Assume that the variable B is the number of years of experience. Suppose the person has 7 years of college and 3 years of experience. What should ...
*May 20, 2011*

**Social Studies**

Why do so many Asian countries speak English or French?
*May 18, 2011*

**statistics**

what is the critical value of this statistic z=1.64 at 0.05 significance?
*May 12, 2011*

**statistics**

what is the critical value of this statistic at 0.05 significance.....z=1.64
*May 12, 2011*

**math**

You brought home 1/2 of a can of paint. You then used 2/3 of the paint to cover a table top. What fraction of a full can of paint did you use? We are multiplying fraction but do I multiply 2/3 paint by 1/1 or do I do 1/2 by 2/3
*May 2, 2011*

**trig**

find, to the nearest tenth of a meter, the length of the arc intercepted by a central angle of 160 degrees if a radius of the circle in 8 meters long
*April 24, 2011*

**trig**

find, to the nearest tenth of an inch, the length of the arc intercepted by a central angle of (4pi)/3 radians if a radius of the circle is 22 inches long
*April 24, 2011*

**Chemistry**

625.grams
*April 10, 2011*

**Math**

Yes thank you forgot it was talking about diving.
*April 7, 2011*

**Math**

During scuba lessons Sue dove 30 feet. Harriet dove 120 feet, and Kathy dove 90 feet. What integers represent these depths? Order the integers from least to greatest. Is it 30, 90, 120 or is there something else I need to do?
*April 7, 2011*

**Math**

Write two numbers that have the given absolute value. 4 38 260 4092 I know one is 4 but do not know the second unless it is -4 Do not have no clue can someone explain?
*April 6, 2011*

**math**

use n equals 22 over 7 find the area of a circle with a radius of 7
*March 31, 2011*

**Literature**

In discussing time, change, and pleasure, Screwtape asserts that "just as we pick out and exaggerate the pleasure of eating to produce gluttony, so we pick out this natural pleasantness of change and twist it into a demand for absolute novelty". Why is the demand for...
*March 28, 2011*

**Literature**

Over the course of The Screwtape Letters, the state of the patient's soul fluctuates as he experiences a conversion, doubt, dangerous friendships, war, love, and finally, in death, oneness with God. What major strategies does Screwtape use to tempt the patient into the ...
*March 28, 2011*

**algebra**

can anyone help me one this 4x(x-4)-5x(x-3)=0 solve for x
*March 27, 2011*

**Math 117**

it is suppose to lok like 4-z over z-2 minus 8z-5 over 2-z equals sorry not really sure how to right mayh problems out using differnt symbols
*March 27, 2011*

**Chemistry**

Mr. Bob, I got 0.038119 and it's wrong.
*March 22, 2011*

**Chemistry**

A sample of 6.41 grams of NaOH is dissolved into 675 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 2.28 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the final solution? ...
*March 22, 2011*

**physics**

first you need to determine the volume of the balloon and the internal pressures. Using those you can use archimedes principle to figure out how much water is displaced and therefore the bouyant force. Then you must determine how much the water pressure will cause the balloon ...
*March 18, 2011*

**art**

how is the best way to create a celtic artefact from an everyday object
*March 2, 2011*

**math 117**

simplify by factoring sqrt1575to the 4th sorry not sure how to type it out right
*February 26, 2011*

**math 117**

sorry it suppose to say sqrt18 +sqrt 32=
*February 26, 2011*

**math 117**

help solve ã18+ã32=
*February 26, 2011*

**Physics**

The rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water. The sudden converse of water to water vapor causes a dramatic expansion that can rip apart shoes. Water has density 1000 kg/m^3 and requires 2256 kJ/kg to be vaporized. ...
*February 24, 2011*

**math**

graphing with out an equasion...y=-x
*February 22, 2011*

**Algebra**

Alycia's pggy bank has dimes and quarters in it. The numbers of dimes is four less than three times the number of quarters. If the total value of the coins is $7.85, how many dimes are in the piggy bank?
*February 17, 2011*

**calculus**

You work for the silver there is a home with a driveway 2 miles long extending to the house from a nearby highway. the nearest connection box is along the highway but 5 miles from the driveway. it costs the company $100 per mile to install cable along the highway and $140 per ...
*February 15, 2011*

**math**

Stacy multiplied 5x9 and said the answer was 44. What two patterns could you use to show that her answer is not correct? ...
*February 14, 2011*

**Physics II**

When an electron moves from A to B along an electric field line, the electric field does 3.94 x 10^-19 J of work on it. What are the electric potential differences (a) Vb - Va, (b) Vc - Va, and (c) Vc - Vb?
*February 13, 2011*

**College Physics**

A point charge of 1.8 uC is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface? I have no idea where to start with this problem.
*February 6, 2011*

**Physics II w/ Calculus**

A point charge of 1.8 uC is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface? I have no idea where to start with this problem.
*February 5, 2011*

**Physics**

A bullet with a mass of mb= 0.05 kg is speeding toward a block of mass m= 10kg. The bullet is moving at vb= 200m/s and the block is at rest. the bullet collides with he block and knocks the block over the edge. the edge is a height h= 0.5m above ground. how far from he edge ...
*February 3, 2011*

**Physics**

two cars, one with mass m1=1000kg and the other with mass m2= 4000kg crash in an intersection. Before the crash, car m1 was headed east with a speed of v1i= 25 m/s and the car m2 was headed north with a speed of v2i= 10m/s. After the crash, the cars stick together. what is the...
*February 3, 2011*

**Physics**

An athlete swims the length of a 46.0 m pool in 21.0 s and makes the return trip to the starting position in 23.0 s. Determine her average velocities in each of the following below. (Take Δx to be positive when the displacement is in the direction she swims during the ...
*February 2, 2011*

**Math**

An executive in an engineering firm earns a monthly salary plus a Christmas bonus of 5300 dollars. If she earns a total of 98700 dollars per year, what is her monthly salary in dollars?
*February 1, 2011*

**Spanish-7th grade-Thanks for checking**

Thank you-I knew when I relooked-Two verbs were conjugated in each of the other three and only the first one should have been: example hago was conjugated but not escribo-not both at the same time Thanks again
*February 1, 2011*

**Spanish-7th grade**

Thanks-I knew the translation-I just wasn't sure which to pick but I figured it out-I know which three of them are wrong, now. Thanks
*February 1, 2011*

**Spanish-7th grade**

How do I answer this question? ¿Qué haces los lunes a las diez de la mañana? Hago estudio. Hago escribo Escucho a la maestra. Hago miro la televisión.
*February 1, 2011*

**geometry**

2 regular hexagonal prisms are similar. The areas of their bases are 25 and 18. The height of th larger prism is 10. What is the volume of the smaller prism?
*January 28, 2011*

**algebra**

The force of gravity is inversely proportional to the square of the center of the earth. if you weigh 120 lbs on the surface of the earth, how much would you weigh 250 miles above the surface? (Earth's radius = 4000 miles)
*January 27, 2011*

**math**

Rectangle ABCD is 12 inches long and has a perimeter of 54 inches. Rectangle LMNO is similar to rectangle ABCD and is 2.4 feet long. What is the width of the rectangle LMNO?
*January 27, 2011*

**physics**

A bb player crouches lowering center of gravity 0.3m. when he jumps, center of gravity reaches 0.9m above normal. A. Calculate velocity when feet left ground. B. Calculate acceleration produced to achieve velocity. C. What force exerted on floor if mass is 110 kg?
*January 24, 2011*

**College Physics II**

Identical isolated conducting spheres 1 and 2 have equal charges and are separated by a distance that is large compared with their diameters. The electrostatic force acting on sphere 2 due to sphere 1 is F. Suppose now that a third identical sphere 3, having an insulating ...
*January 23, 2011*

**English**

Describe the strategies you have developed to avoid confusing the use of adverbs and adjectives in the future.
*January 6, 2011*

**English**

I need help writing a paragraph with five details that are good and five about how to well. Using the words well and good. Example: I like how well the examples are used in our text. It makes me feel better knowing that I am doing better in my homework assignments. The way ...
*January 6, 2011*

**English**

Students are often confused about the use of the words good and well in their writing. Write a 100-word to describe five details from her book that are good and five details about the book that are written well.
*January 6, 2011*