Thursday

September 29, 2016
Total # Posts: 781

**Algebra**

-3(x^2+2)=102 x^2+2=102/-3 x^2=-34-2 x=sqrt32

*March 7, 2010*

**math**

its sqrt 3+ sqrt5. not 3+ sqrt5

*March 7, 2010*

**math**

Find a polynomial with integer coefficients such that (sqrt3 + sqrt5) is a root of the polynomial

*March 7, 2010*

**math**

Find a polynomial with integer coefficients such that (sqrt3 + sqrt5) is a root of the polynomial

*March 6, 2010*

**math**

find a polynomial with integer coefficients such that square root of 3 + square root of 5 is a root of the polynomial

*March 6, 2010*

**math**

how many zeros is in 2010!(2010 factorial)?

*March 6, 2010*

**math**

w=d/t let x=80, so (80+80)/(8hs+10hrs) =8.8889 mi/hour

*March 6, 2010*

**math**

find a formula that gives the maximum number of enclosed regions formed by n lines

*March 6, 2010*

**Math**

2.34x10^7=23400000 1.7x10^12=1700000000000

*March 6, 2010*

**statistics**

540/1038=52.02%

*March 6, 2010*

**Chemistry**

Hydrochloric acid can be prepared using the reaction described by the chemical equation: 2 NaCl(s) + H2SO4(l) ----> 2 HCl(g) + Na2 SO4(s). How many grams of HCl can be prepared from 393 g of H2SO4 and 4.00 moles of NaCl?

*March 6, 2010*

**math**

find a polynomial with integer coefficients such that square root of 3 + square root of 5 is a root of the polynomial

*March 3, 2010*

**Math**

Randy deposits $7,540 in a bank account that pays 4.5 percent simple interest. If he doesn't change the principle, what will his balance be in 10 years?

*March 1, 2010*

**nutrition**

Pregnancy obviously results in an increased need for vitamins and minerals. Deficiency or excess of any of a number of nutrients can lead to birth defects and/or complications during pregnancy

*February 23, 2010*

**Global History **

ok never mind sorry thank you so much :]

*February 16, 2010*

**Global History **

all men had to do what during military expansion during the Meiji Restoration?

*February 16, 2010*

**Global History**

Japan fights an imperialistic war with Russia Called the?

*February 16, 2010*

**Global History**

4 improvements during Meiji Restoration

*February 16, 2010*

**Global History**

How were European nations able to dominate non-European areas?

*February 16, 2010*

**Math/Precal**

what is the first term of an arithmetic sequence if the 7th term is 21 and the 10th term is 126

*February 13, 2010*

**healthcare**

compose a list identifying the major components of health communication. who is involved in each component? how does each component promote health communincation? in not utilized, how would it reduce health communincation? provide examples.

*February 8, 2010*

**calculus**

find the area of the region enclosed by y= square root of x, y=x-2, and y=0. i use f(x) - g(x) and got the answer to be 2, but my classmate got 8/3 do i'm really confuse dont know whats the answer.

*February 3, 2010*

**Calculus**

Find the surface area formed by revolving the graph of f(x)=81-x^2 on the interval [0,9] about the y-axis. (express the answer in terms of pie.)

*February 3, 2010*

**math-cal.**

find the volume of the solid formed by revolving the region bounded by the graph of y=2x^2+4x and y=0 about the y- axis ( express the answernin terms of pie)

*February 2, 2010*

**calculus**

find the volume of the solid formed by revolving the region bounded by the graphs of y=x^3,y=1, and x=2 about the x-axis using the disk method. 9 express the answer in terms of pie) i got the answer to be 3/5 pie but im not sure if is right. i used the formula V=(pie)(r)^2W

*February 2, 2010*

**Accounting**

The question is: Compute the recent two years’ cash flow on total assets ratios for this company. This is the info given: Operating cash flow for current year (in millions): $1,762 1 year prior - $1,740 2 years prior - $1,981 Total Assets for current year - $13,570 1 year...

*January 29, 2010*

**2nd grade**

The first set of letters has all straight letters and the second set of letters are all curved in some sort!!! I seriously sat there four hours trying to figure out what the heck they were talking about, I actually tried sounding them all out thinking that was what they were ...

*January 27, 2010*

**6th /7th grade science**

Current issue like global warming

*January 22, 2010*

**Statistics**

I am trying to work a case problem, I have to take a group of numbers and using the data by product line, there is three different products lines, I need to compile a breakdown of sales by product then give a total of all three. then I need to find the expected sales for each ...

*December 31, 2009*

**math**

wheels bicycle shop advertised a bicycle for 15% off for a savings of $36. The bicycle did not sell so it was offered at a new 20% discount off the sale price. What did the bicycle sell for regularly? What is the amount of the new discount?

*December 13, 2009*

**hca/210**

three cuases for the increasing cost of healthcare and what affect does each have on society

*December 11, 2009*

**Calc.**

a bomb is dropped drom an airplane at an altitude of 14,400 feet how long would it take to reach the ground? (because the motion of the plane, the fall will not be vertical, but hte time will be the same as that for a vertical fall.) the plane is moving at 600miles per hour. ...

*December 9, 2009*

**Calculus**

the grand canyon is 1600 meters deep at its deeoest point. a rock is dropped fromthe rim above this point. Express the height of the rock as a function T in seconds. how long will it take the rock to hit the canyon floor? H= 1600-1/2t^2 thats what i got as a function is that ...

*December 9, 2009*

**Calc.**

ok, i know what it is had forgotten we use that but its in my notes thanks!!!!

*December 9, 2009*

**Calc.**

find the derivative of 3x^4-5x+3/x^4+1 i know that the derivative of the numeratoor would be 12x^3-5 but i'm not sure if its right since it has a denominator i Know i need to do something to it but not sure if to simplify.

*December 9, 2009*

**Calculus**

A fully plane has a constant acceleration while moving down a runaway. the plane requires .7 mile of runaway and a speed of 160 miles per hour in order to lift off. what is the planes accelearation? i need the formula cause the one i have doesnt work cause i need time

*December 8, 2009*

**biology**

I have the same question and do not understand it, well i do. Just need help to set it up. Well the punnett square

*November 11, 2009*

**Physics**

Please reply soon!

*November 10, 2009*

**Physics**

If we take a point of reference that is a certain distance away from where the force is applied and the force is acting on the same axis as the distance axis i.e. the force vector and the distance vector are on the same axis, only in opposite directions, would the torque of ...

*November 10, 2009*

**social studies**

if the issue is whether a person is civil rights were violated in court desicion through what levels of courts might that person appeal?

*November 9, 2009*

**Anatomy & Physiology**

Excercising muscle will receive more oxygen from hemoglobin than will relaxed muscle because: a)it's PO2 is low b)it's PCO2 is high c)both a and b d)both a and b and its temp is higher than usual

*November 3, 2009*

**Anatomy & Physiology**

In the fetus, the organ that is important for the normal development of the immune system is the? liver? spleen? thymus gland? lymph node?

*November 3, 2009*

**Chemistry**

How many moles of ions are released when these samples are dissolved in water? a. 0.37 mol of NH4Cl b. 3.55 * 10^18 formula units of Ba(OH)2 * 8H2O I need to know what steps to take to get to the answer. Thanks!

*November 2, 2009*

**chemistry**

i need help to make a data for my project but i don't know how close can a magnet be from the staples after it will pick up the objects but i don't know how to put in a data

*November 2, 2009*

**college**

what would be a good exsample of ecological from the RIMs?

*October 30, 2009*

**Life orientation**

We humans hace never sacrifice individual liberties in the nasme of freedom

*October 26, 2009*

**Physics**

How does the drag force on an object change if the object's area is halved while the wind speed is doubled, while keeping everything else the same? i think it would double if you use this eqn: f= 1/4 A v^2 can someone verify if this eqn is correct to use in this problem?

*October 18, 2009*

**physics**

An object slides down a inclined surface in the presence of kinetic friction forces. At the given inclination the kinetic friction force is found to be of magnitude 90 N. Now, the angle that the surface makes with respect to the horizontal is increased and the object continues...

*October 16, 2009*

**physics**

Thank you. I just wanted to confirm that this was the right way to do the question. Just another clarification. In the FBD for this question, would the kinetic friction force be in the positive horizontal direction i.e. in the direction the rider was moving before he braked?

*October 16, 2009*

**physics**

A bicycle and rider of total weight 815 N travel at a speed of 40.0 km/h. The rider hits the breaks and the bicycle slides to a full stop in a distance of 8.5 m. Ignore air resistance and use g=9.8 m/s2. What is the coefficient of kinetic friction between the tires (rubber) ...

*October 16, 2009*

**Angles -- Math?**

if there is a hill at an incline of 50 degrees from the horizontal..is it true that at any point on that hill a horizontal "cut" would make an angle of 50 degrees?

*October 12, 2009*

**math**

Find the missing numbers and landmarks for the set of numbers 48,50,51,51,57,59,60,63,69,_,76,_ Range Mode: 76 Minimum: Maxium: 76

*October 7, 2009*

**math**

what is 30 percent of $82,000.00

*October 7, 2009*

**geography**

what r the five themes of geography for moscow, russia

*October 5, 2009*

**physics**

A fly lands on one wall of a room. The lower left-hand corner of the wall is selected as the origin of a two-dimensional Cartesian coordinate system. The fly is located at the point having coordinates (1.80, 1.15) m. (a) How far is it from the corner of the room?

*October 4, 2009*

**math prime factorization**

3x3x5

*September 28, 2009*

**math**

compare the 2 numbers 1,945____ 1,936

*September 16, 2009*

**rounding**

2767 if the number is 2767 then how do u round it to the nearest tenth

*September 10, 2009*

**Math **

thanks bob :)

*September 9, 2009*

**Math **

there are 2 pts in a qt right?

*September 9, 2009*

**Math **

You can buy three bottles of dishwashing liquid, each containing 1 pt 5 fl oz, on sale for $2.30. Let say for the same price you can buy a large container holding 2 qt. Which is the better buy?

*September 9, 2009*

**math**

write the equation for a line in point-slope form and in slope-intercept form. parallel to 3x-4y=12 and passes through (8,3).

*August 16, 2009*

**MATH**

I HAVE A GARDEN THE WIDTH OF MY GARDEN IS 8FT LONGER THAN THE LENGHT OF IT ARUOUND THE GARDEN I HAVE A 4 FEET WIDE SIDEWALK. THE AREA OF THE SIDEWALK IS ABOUT 320 FEET SQUARE, WHAT ARE THE DIMENSIONS OF MY GARDEN

*August 6, 2009*

**biology**

which organ system contains the stomach

*May 21, 2009*

**8th Grade Algebra**

How come x^4/3 is a ploynomial, but 3/x^4 isn't?

*May 4, 2009*

**biology**

1. A population which meets the hardy- weinberg requirements: a. Evolves b. is small and usually isolated c. has allele frequency in equilibrium d. changes genotypic distribution from generation to generation e. always has 75% A and 25% a allele frequencies 2. In a ...

*April 30, 2009*

**Algebra**

The population of Australia in x years after 1980 can be modeled by the function y=14.6*(1.014)^x. Estimate the population of Australia for each year. a) 1976 b) 1980 c) 1972 I am not sure of what to do. Help Please ?

*April 26, 2009*

**8th Algebra**

What are some real-life examples of exponential growth and decay?

*April 20, 2009*

**Chemistry**

when benzoic acid and quinine is dissolved to dichlromethane and 2M NaOh, what is the organic layer being formed? (i have sodium benzoate as aqueous layer of the product. is this right?)

*April 1, 2009*

**chemistry-organic**

what happens when sodium benzoate is added to dichloromethane? what is the organic and aqueous layer of this product?

*April 1, 2009*

**chemistry**

1)when benzoic acid and quinine is dissolved in CH2Cl2 and added 2M NaOH, what is the organic layer and what is the aqueous layer? a)and by adding another 2M NaoH to the organic layer, what is the new aqueous layer and organic layer? b)from (1), if we add CH2Cl2 to the aqueous...

*March 31, 2009*

**Chemistry**

i have to separate benzoic acid from a mixture with quinine. so benzoic acid and quinine are qissolved in Ch2Cl2. i think the question is asking wether there's any other chemical forms in the mixture apart from the neutral forms for benzoic acid and quinine, but i am ...

*March 31, 2009*

**Chemistry**

what are the other chemistry forms present in the dichloromethane solution besides the normal neutral forms for benzoic acid and quinine? (benzoic acid,pKa 4.2; quinnie, pKa 8.5)

*March 31, 2009*

**8th Grade Algebra**

1) A firefighter aims a hose at a window 25 ft. above the ground. The equation h = -0.01d^2 + 1.06d + 5 models the path of the water, when h equals height in feet. Estimate, to the nearest foot, the horizontal distance d in feet btween the firefighter and the building. This ...

*March 30, 2009*

**Algebra 1- 8th Grade**

If I were to write down: "When you find the median between the two intercepts, it is the x-intercept of the vertex." do you think that's a true relationship still ?

*March 29, 2009*

**Algebra 1- 8th Grade**

What is the relationship between the x-intercepts of a parabola and its vertex's x-coordinate?

*March 29, 2009*

**math**

Mr. Mitchells office is on a winding side road next to a highway exit.He is driving on the highway at 60mph, and at this rate he expected to arrive at his office at 8:45a.m.However at 8:30 he was forced to leave the highway and take the side road, driving at a steady speed of ...

*March 16, 2009*

**Social Studies: Roman Emperors**

What is the life summary of the Roman emperor, Elagabalus ?

*March 15, 2009*

**Algebra**

1) Two cars leave town at the same time going in opposite directions. One travels 44 mi/h and the other travels 55 mi/h. In how many hours will they be 297 miles apart? 2) Two cars leave town at the same time going the same direction on the same road. One travels 32 mi/h and ...

*March 7, 2009*

**4th grade math**

21

*February 26, 2009*

**biology**

an animal has a segmented body, soft fleshy skin, an open circulatory system, it breaths with tiny tubes and openings, and does not have legs or antennae. How would this organism need to change to become an arthropod?

*February 18, 2009*

**10th grade English**

Persuasive writing. How to write a persuasive paragraph about women choosing their own destiny to a person of the jewish faith

*February 3, 2009*

**math**

Y = 3/8- ((-3/64)x) this is the variable expression. just make y= 1/16 to find the number of years. plug 1,2,3 into x to find the amount of tread left after each year.

*January 7, 2009*

**Chemisty**

thank you very much

*January 7, 2009*

**Chemisty**

If ten drops of 0.3 M HCl are mixed with ten drops of 0.3 M Na2S2O3, what will be the concentration of each chemical in the mixture? Please help, i am pretty sure that the concentration should be 0.3 M but i am not sure if i am supposed to do somthing with the ten drops. Thank...

*January 7, 2009*

**Gr.11 Math**

A large company has a phone tree to contact its employees in case of an emergency factory shutdown. Each of the five senior managers calls three eployees, who calls three other employees and so on. If the tree consists of seven levels, how many employees does the company have...

*January 5, 2009*

**French**

what is a sentence i can use using the word avoir. give a comande

*December 3, 2008*

**Life Science**

Where does photosynthesis occur in a plant cell?

*November 19, 2008*

**General**

May I suggest you try MS Office online and check out the information there for Office 2007.

*November 10, 2008*

**spanish**

Presta atencion a la senora y no olvide las letras mayusculas cuando conmienza una oracion y use nombres propios.

*November 10, 2008*

**pre-algerbra**

write an algebraic expression for each of the quantities being comared. The attndance on tuesday was 350 more than double the attendance on monday

*November 9, 2008*

**5th Grade student teacher: Needs ur help....**

Ben's Guide - Google this and you will get lots of grade appropriate

*November 6, 2008*

**Physics**

How many times will the incident beam shown in Figure P25.3 (x = 1.90 m, y = 1.30 m) be reflected by each of the parallel mirrors? mirror on the right

*November 6, 2008*

**4th grade math**

Always perform the operations in () parentheses first.

*November 5, 2008*

**3rd grade**

Just as Bailey said. Notice that this is the longgggg e sound for the vowels ee and ea. You then need to think of ending consonants. I bet you have examples in your student activity book. Look back at your recnet classwork.

*November 5, 2008*

**english**

Are the words "encyclopedia", "habitat", and "reefs" count or noncount nouns?

*October 22, 2008*

**English**

The first question: both are correct The second question: huh? The third question: all are correct

*October 22, 2008*

**math**

#1: correct #2: correct #3: im not sure but i think its incorrect #4: incorrect #5: correct

*October 22, 2008*

**chem**

i am trying to find the minimum volume of hot water needed to dissolve 100 mg of salicylic acid. when i did the calculations i got 100 ml of hot water is this correct?? The data is [temp] [amount of salicylic acid per 100 ml water, g] 0 0.10 10 0.13 25 0.23 50 0.63 75 1.8 90 3.7

*October 13, 2008*

**chem**

i am trying to find the minimum volume of hot water needed to dissolve 100 mg of salicylic acid. when i did the calculations i got 100 ml of hot water is this correct?? The data is [temp] [amount of salicylic acid per 100 ml water, g] 0 0.10 10 0.13 25 0.23 50 0.63 75 1.8 90 3.7

*October 13, 2008*