Sunday

February 19, 2017
Total # Posts: 242

**Chemistry**

h2c4h4o4 + 2naoh --> 2h2o + na2c4h4o4 as for the previous question im sorry i forgot to plug the maleic acid in the formula properly. so this ones it ^ .2213 of c4h4o4 used (maleic acid) and .1 M NaOH 1. show the equation for 1st and 2nd ionization 2. find molecular mass of...

*March 12, 2012*

**trig**

Simplify the expression cos^2 x (sec^2 x-1)

*March 8, 2012*

**math**

Thank you. What if i round it to millions. would it be 4 million?

*February 25, 2012*

**math**

How to I round 613,572,947 to the nearest tens. My teacher confuses me with this. Would it be 50?

*February 25, 2012*

**history**

against the Ku Klux Klan. Together, these were known as the _______ Acts. A. Grant B. Force C. Klan D. Reconciliation

*February 2, 2012*

**college algebra**

A grandmother is looking for a plan to finance her new grandchild’s college education. She has $50,000 to invest. Search the internet and locate a long-range investment plan, CD, Savings Bond, etc, for the grandmother. The plan is to earn compound interest

*February 1, 2012*

**math**

suppose you use the rule (3x+1,3y-4) to transform the original figure into a new figure. How would the side lengths of the new figure compare to the side lengths of the original? I need help fast. Thank you so much.

*January 16, 2012*

**Math**

Is the answer 191.7m2.

*January 12, 2012*

**Math**

Please help I have school tomorrow.

*January 12, 2012*

**Math**

Amandeep decides to grow a vegetable garden. She wants to make it 10.1m long and 4.2m wide. She is worried about rabbits eating from her garden so she builds a fence around it. The fence will be 11.2m long and 5m wide. What is the area between the fence and garden? Show your ...

*January 12, 2012*

**COMPUTER HARDWARE MANAGEMENT**

Your mother wants to purchase a larger hard drive for her computer and asks you to see what type of drive interface she has. Her computer is connected to the motherboard by a gray ribbon cable that encases 40 pins. What type of drive interface does she have? A. Solid State B. ...

*November 29, 2011*

**math**

write the fraction in lowest term

*November 27, 2011*

**Math**

How do I write the numbers in order from greatest to least and show my work 0.275, 2 5/8, 0.15, 3 6/7

*November 9, 2011*

**Math**

Please check my work. 1) 64 divide -4 = -16 2) -144 divide (-9) = 16 3) Simplify -9 and a small 2 = -81 4) Simplify (-3) and a small 3 = -27 5) Add -4/11 + 5/11 = 1/11 6) subtract 5/11- [-3/11] = 8/11 7) multiply [-7/8] • [-2/4] = 7/16 8) divide -3.5 -5.6 = -0.63 9) ...

*November 8, 2011*

**Math**

Divide -60/10 Is -6 the answer?

*November 8, 2011*

**Math**

4•(-5) Is 20 the correct answer?

*November 8, 2011*

**Math**

Subtract. -3 -16 Is -19 the answer?

*November 8, 2011*

**Math**

Add. (-6) + 11 Is 5 the answer?

*November 8, 2011*

**Mathematics**

A man walked for some distance at 8 km/h, and for an equal distance at 5 km/h. The total time he took was 13/4 hours. Find the total distance he walked. Explain your workings

*November 5, 2011*

**Math**

Mrs Li bought some oranges. She gave 1/2 of them to her sister, 1/4 of the remainder to her neighbour, 3/5 of those left to her children and had 6 left in the end. How many oranges did Mrs Li buy? Explain your workings

*November 5, 2011*

**Basic math**

Ah yay! Thanks miss sue!!

*November 3, 2011*

**Basic math**

I figured that but I thought I had to do some adding then divide it by two. Idk I think I'm a bit confused. Thank you

*November 3, 2011*

**Basic math**

The company Acceptance had employees with monthly salaries of $1,700, $1400, $7,000, $1550, and $2,500. Find the median of these salaries. How do I answer this?

*November 3, 2011*

**Basic math**

So 10+12=22 22divide by 2 = 11 Is 11 the correct answer?

*November 3, 2011*

**Basic math**

Find the median of the numbers 3, 6, 10, 12, 27, 62 How do I answer this?

*November 3, 2011*

**math**

Yay thanks!!!

*November 3, 2011*

**math**

Round to the nearest hundred. 483.9 Is 500 the correct answer?

*November 3, 2011*

**math**

Write in expanded form. 7.37 Is this the correct answer? 7+3/10+7/100

*November 3, 2011*

**math**

Which is the correct symbol to make the resulting inequality true? 4 4/3 > 4 1/2 Or 4 4/3 < 4 1/2 What does this mean?

*November 1, 2011*

**physics**

A car moving with a constant acceleration covers the distance between two points 80 m apart in 8.0 s. Its velocity as it passes the second point is 15 m/s. (a) What was the speed at the first point? (b) What is the constant acceleration? (c) How far behind the first point was ...

*October 22, 2011*

**math**

the bus passes through Sierra Blanca, which is 90 miles from El Paso. About how long does it take the bus to get to Sierra Blanca?

*October 11, 2011*

**Dental Terminology and Anatomy**

1.The largest of the salivary glands is the A. Submandibular B. Sublingual C. Minor D. Parotid 2.The portion of the tooth that is used for mastication and is visble in the oral cavity is the A. Cervix B. Crown C. Root D. Gingiva 3.The ____ makes up the superior of the oral ...

*September 21, 2011*

**mathematics**

thank you very much for your help.

*August 29, 2011*

**mathematics**

Please help me answer this question; 1.A metal gutter open at the tops and ends, is bent up from material 30 cm wide to form a rectangular cross section. a) If the base of the gutter is x cm wide, find the height of the gutter. b)Show that the area of the gutter cross section ...

*August 29, 2011*

**Maths**

please help me answer this question: A pilot sets to fly from B to A and wishes to set a course to offset a 32 km/h easterly wind.The aircraft can fly at the speed of 800km/h in still air. A is 256 from B in a bearing of 330 degrees. a)on what course must the aircraft be set? ...

*August 11, 2011*

**math puzzle**

(2^2)+(7^3)+(4^3)+ 3 + 4 +(3^2) =? (2x2)+(7x7x7)+(4x4x4)+3+4 +(3x3) =? 4+ 147 + 64 + 7 + 9 = 231

*June 5, 2011*

**algebra 1**

(-6+3=y) the following equation given is a linear function:(general formula is y = mx+c)..where m = the gradient, and c= the y-intercept.hence in the equation given; m is= -6, & c=3. to find the x-intercept, make y = 0. eg. -6x+3=y -6x+3=0 -6x=-3 -6x/-3=-3/-3 2x=1 x=1/2

*June 5, 2011*

**trigonometry**

Yes, the question should be : 2(sec^A -2)/4 tan A

*June 5, 2011*

**trigonometry**

Simplify:2sec^2A-2/4tan A...Please help,anyone who can answer

*June 5, 2011*

**history**

thanks very much.

*June 5, 2011*

**history**

briefly: what is vietnamisation?

*June 5, 2011*

**trig**

on the same set of axes: (0 degrees is greater than or equal to x and x is less than or equal to 360 degrees) (a) sketch the graphs of y= sin degrees ,y=2sinx degrees and y=sin2x degrees

*June 4, 2011*

**trig**

Given Tangent theta = -5 on 4 and cos theta >0, find sine theta and sec theta

*June 4, 2011*

**science**

what is the average speed from 5s to 10s

*May 5, 2011*

**sphysical cience**

a car's speed changes from to travel 325m if your car can 160m/s

*May 5, 2011*

**algebra b1**

5x+4=y y-3x=7

*February 16, 2011*

**Math**

So here's our question " Chet bought a rug that cost $280. He had a coupon for about 10% off" now here is our two questions how much did he save with the discount?? And our other one is how much did he pay he paid 130

*February 10, 2011*

**Math**

how can you condense these cos^3x* cos2x^2 cos^3x- cos2x^2 Thanks a lot :)

*January 23, 2011*

**Pre-Calc**

x=+-√(14

*January 23, 2011*

**Chemistry**

Superphosphate, a water soluble fertilizer, is sometimes marked as a "triple phosphate". It is a mixture of Ca(H2PO4)2 + 2CaSO4. Ca3(PO4)2 + 2H2SO4 --> Ca(H2PO4)2 + 2CaSO4 If you treat 400g of calcium phosphate with 267g of sulfuric acid, how many g of ...

*January 8, 2011*

**math**

Use formula LCM x GCF = product of two numbers GCF = 180 / 60= 3

*January 8, 2011*

**Math, please help!**

pijpj

*January 6, 2011*

**geometry**

two of the angle of a arallelogram measure 75 what are the measures of the other two angle

*November 29, 2010*

**bobpursley please help**

wait. nevermind about the .0330. but why divide by 2?

*November 28, 2010*

**bobpursley please help**

yes, Thanks! but... i don't understand how you got the .0330 and why you divide the whole thing by 2.

*November 28, 2010*

**bobpursley please help**

A coin with a diameter of 3.30 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 16.1 rad/s and rolls in a straight line without slipping. If the rotation slows with an angular acceleration of magnitude 1.93 rad/s2, how far ...

*November 28, 2010*

**physics help?**

wi = 16.1 rad/s = 2.5624 rev/s a = -1.93 rad/s^s = -.3072 rev/s^2 0=2.6^2+2(.3072)theta theta=11.0026 rev 2pi*r*theta and i get the answer to be 1.14m but that's not right.

*November 28, 2010*

**physics help?**

i keep getting the wrong answer... still.

*November 28, 2010*

**physics help?**

A coin with a diameter of 3.30 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 16.1 rad/s and rolls in a straight line without slipping. If the rotation slows with an angular acceleration of magnitude 1.93 rad/s2, how far ...

*November 28, 2010*

**media and culture**

i know that media convergence is taking things and making putting it together as one service. like bundling cable internet and phone. but i do not get how this has impacted our culture!

*November 15, 2010*

**com 156**

i know that media convergence is taking things and making putting it together as one service. like bundling cable internet and phone. but i do not get how this has impacted our culture!

*November 15, 2010*

**com 156**

thank you. I read all this and understand it but i feel like the question repeats some of the other question answer and i feel like i am repeating my self. i am writing an essay for media and culture and i just feel like i am not understanding it enough. but the essay is ...

*November 15, 2010*

**com 156**

i understand that media has changed our culture by making things easie to access and that we have became more reliable on the internet. even after reading my chapter i still do not understand what they are expecting me to put for how it has changed american culture can some ...

*November 15, 2010*

**comm/155**

Hi could you check my sentences to see if their right?

*November 14, 2010*

**physics**

a soccer player kicks a stationary ball giving it a speed of 20m/s at an angle of 15degrees to the horizontal. what is the maximum height reached by the ball?

*October 15, 2010*

**epidemiology**

yes

*October 10, 2010*

**chemistry**

If 2.10 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 28°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 34°C to 57°C?

*October 6, 2010*

**biology**

is hypothesis accepted if can't be proven wrong?

*August 25, 2010*

**Statistics**

Assuming that the heights of college women are normally distributed with mean 62 inches and standard deviation 3.5 inches, what percentage of women are between 58.5 inches and 72.5 inches? a. 13.6% b. 84.0% c. 97.6% d. 34.1% e. 15.7%

*June 20, 2010*

**chemistry**

What mass iron(III) oxide could be produced from 8.2 mol of oxygen gas in the synthesis of iron(III)?(Balanced equation)

*March 15, 2010*

**trig**

prove: tan*2x-sin*2x=sin*2xtan*2x

*March 10, 2010*

**writing**

Can you help me correct these sentences? 1.She wants to become an environmental scientist she is especially interested in marine life. 2.If she can get a scholarship she would like to spend her senior year in New Zealand. 3.The Great Coral Reef almost cicles New Zealand it has...

*February 23, 2010*

**business memo**

can someone double check for me? This is the second part to the business letter I posted a few days ago. Process: Draft an interoffice memorandum to Miriam Hopkins, the Director of Human Resources: a. Assume that you’ve received confirmation from Jeremy Dittmer for the ...

*February 15, 2010*

**business letter**

here's the memo part, the email part will come later. and I understand the date and time thing now. I need to put a period between a.m. process: 3. Draft an interoffice memorandum to Miriam Hopkins, the Director of Human Resources: a. Assume that you’ve received ...

*February 13, 2010*

**business letter**

I don't understand the June 30,2010 part. Shall I put June 30th, 2010? Corrected: There will be twenty office supervisors attending, and light refreshments will be provided for breaks.

*February 13, 2010*

**business letter**

Revised: And thanks for your help. Broadworth General Hospital 123 Main St. Boston, MA 41467 February 13, 2010 Jeremy Dittmer, Employee Relations Specialist Wydade Consulting Services 456 Apple Way Anytown, MA 12345 Dear Mr. Dittmer, I am writing to you today to request a ...

*February 13, 2010*

**business letter**

can you check for me? Thanks Assigment: write a business letter according to the background. Background:Assume that you’ve worked for the last five years as an administrative assistant for the Human Resources Department of Broadworth General Hospital. The Director of ...

*February 13, 2010*

**biology**

Hi Christina, The offspring of true-breeding parents are called the a) F1 generation. Think of it like in human families: the parents have the first generation of kids. Then, when THOSE kids have kids - producing grandkids - that's an F2 generation. So PxP=F1 and F1xF1=F2...

*January 20, 2010*

**confidentiality of health information**

When should the computerized medical database be online to the computer terminal?

*December 28, 2009*

**college**

Find the mean of the following set of numbers. 13, 15, 18, 18, 18, 19, 22, 26, 28, 33

*November 18, 2009*

**math**

write an integer to represent each description

*November 18, 2009*

**physics**

The maximum speed that a car can travel around a flat curved road is 18m/s. What would be the maximum speed for that car around a curve with half the radius?

*November 17, 2009*

**Science**

You are given a wooden block that is 25cm long, 8cm wide and 3cm tall. Also, the block of wood has a mass of 350 grams. What is the density of this block of wood?

*September 22, 2009*

**health**

ms sue i don't understand you comment

*September 22, 2009*

**health**

What are some current nutritional issues, such as obesity or malnutrition, that might affect newborns to 3 years of age?

*September 22, 2009*

**health**

How might nutrition affect growth, development, and learning for newborns to 3 years of age?

*September 22, 2009*

**math**

BLAH BLAH BLAH BLAH AND TY FOR THE BRACES ANSWER

*August 25, 2009*

**English**

Hi there, I am doing a presentation on Martin Luther King's March on Washington August 28th, 1963 and was wondering if you direct me to any useful links to information, videos and pictures.

*March 10, 2009*

**algebra 1 page 167 did you hear about...**

The farmer who named his pet rooster robinson because it crew up?

*February 22, 2009*

**calculus**

A ball of radius 10 has a round hole of radius 8 drilled through its center. Find the volume of the resulting solid.

*February 3, 2009*

**PLEASE HELP!**

can some one please help me, i really really need help. thanks for any help.

*July 24, 2008*

**Pythagorean theorm**

i have been workin on this problem for hours and desperatly need help. Im suppose to solve the following three problems in the pythagoream theorem form and also find the ratios. Can someone pleasse help me =] Pythagorean Theorem a² + b² = c² 1.) O = 30° & &...

*July 24, 2008*

**Pythagorean Theorem**

i was given this in class: Pythagorean Theorem a^2 + b^2 = c^2 1.) O = 30° & Φ = 60° 2.) O = 45° & Φ = 45° 3.) O = 0 ° How would you calculate the ratio for these sides/angles?

*July 23, 2008*

**hmm**

kk, thanx, that's what i thought, but my physics teacher said it is possible. I don't understand.

*July 23, 2008*

**physics**

A box is resting on a table frictionless). Determine the weight of the box and the normal force acting on it. (a) If the box was pushed down, with a force of 40N, determine again the normal force acting on the box. (b) If the box was pulled up with a force of 40N, what now is ...

*July 22, 2008*

**physics**

!* =)

*July 22, 2008*

**physics**

Yes! thank you both! this really helps1

*July 22, 2008*

**sorry!**

For this problem: A person throws a ball upward with an initial velocity of 15 m per second. In order to calculate how high the ball goes, drwls gave me this formula below: It travels upwards until the vertical velocity component becomes zero. The calculaitons are below: (1/2)...

*July 22, 2008*

**physics**

How would you reword the terms of this equation: (1/2)M Vo^2 = M g H Where H is the maximum height above the thrower's hand. H = Vo²/(2 g) = 11.5 m Could you substitute the letters H & M with Y, Yo, V, Vo, G, T, or use any of these four newton's equtions: V = Vo...

*July 22, 2008*

**physics**

thanx =) for all your help!

*July 21, 2008*