Monday

January 23, 2017
Total # Posts: 197

**math**

V= 3.14 x 2.5^2 V= 3.14 x 6.25 v= 19.625 / 3 V= 6.514 ins.^3

*May 30, 2012*

**Math**

Find the sum of the arithmetic series. 20 (Sigma Sign) 2n + 7 x= 1 Formula: Sn= a1 (1 - r^n / 1 - r)

*May 29, 2012*

**Chemistry**

8.0% (m/v) NaOH solution

*May 29, 2012*

**world geography**

You're correct, it is d.

*May 29, 2012*

**Math**

Wait, do you know how it could be plugged into the Sn= a1 (1 - r^n/ 1 - r) formula?

*May 29, 2012*

**Math**

Thank you, MathMate.

*May 29, 2012*

**Math**

20 (Sigma Sign) 2n + 7 k= 1

*May 29, 2012*

**English**

I'm thinking #4. It should to talking to eachother not with eachother.

*May 29, 2012*

**physical sciences**

It's D. Usually it's up to 8

*May 25, 2012*

**math**

36/2= 18 pages per hour (first time) Second time: 54/3= 18 pages per hour

*May 24, 2012*

**Parabolas in standard form!**

108x = -3y^2 - 6y + 969 108x = -3(y^2 + 2y + 1) + 972 x = -1/36 (y+1)^2 + 9 I'm not too sure how to do the second one. I'm really sorry.

*May 24, 2012*

**biology**

Multiple Alleles

*May 24, 2012*

**Chemistry**

The particles of gas bouncing into the walls of the container.

*May 24, 2012*

**Chemistry**

It's highly flammable, and it'll explode from extreme heat.

*May 24, 2012*

**chemistry HELP plz!**

Yeah, it's B. 31P

*May 24, 2012*

**English**

Early in the story, London writes "The animal was depressed by the tremendous cold. It knew that it was no time for traveling". This passage alerts you to possible trouble ahead. Locate four other passages that foreshadow later events. Explain the link between each ...

*May 24, 2012*

**Math**

It's pretty much like this: log3 729= x 3^x= 729 3^x= 3^6 x= 6

*May 24, 2012*

**Math**

Ah. I see. I understand now. Thank you very much, Steve.

*May 24, 2012*

**Math**

Evaluate the logarithm log3 729

*May 24, 2012*

**Math**

Write a rule for the nth term of the geometric sequence. Then find a7. 1. 7, -4.2, 2.52, -1.512, ...

*May 23, 2012*

**science**

(1.00e5 kg (NH4)2SO4 / 1) * (1000 g (NH4)2SO4 / 1 kg (NH4)2SO4) * (1 mol (NH4)2SO4 / 132.1402 g (NH4)2SO4) * (2 mol NH3 / 1 mol (NH4)2SO4) * (17.031 g NH3 / 1 mol NH3) * (1 kg NH3 / 1000 g NH3) = 25777.16698 kg NH3. Your answer will be 25800 kg NH3 in significant figures way.

*May 23, 2012*

**English**

That death is part of nature and man cannot stop it. If man were able to fight death, the man in the story would have been able to rebuild the fire and survive, but nature as fate prevailed by taking his life. This story also shows man's reliance on nature to survive, and ...

*May 23, 2012*

**English**

How is the story "To Build a Fire" by Jack London a good example of Naturalism?

*May 23, 2012*

**Math**

Still not showing it. It's in the form of an E.

*May 23, 2012*

**Math**

Sorry it would show the sign, but it's the sigma sigma sign and it kind of looks like an E. Some like this: ‡”

*May 23, 2012*

**Math**

Find the sum of the geometric series. 10 1. Ó 5(2)^i - 1 i= 1 12 2. Ó 8(3/2)^i - 1 i= 1

*May 23, 2012*

**math**

Tell whether the sequence is geometric. Explain why or why not. 1. 4, 16, 64, 256, 1024,... 2. -1/4, 3/8, -3/16, 1/32, -3/64, ... 3. 0.75, 1.5, 2.25, 3, 3.75, ...

*May 23, 2012*

**Chemistry**

25ml

*March 28, 2012*

**Math**

Larry & Willa are each reading the same book. Larry has read 2/3 of the book. Willa said that she has read 4//6 of the book, so she read more. Is Willa correct? Explain?

*March 22, 2012*

**Math**

Each cube below is made up of smaller cubes, but the large cubes are not solid. They had tunnels through them. • The first cube originally had 27 small cubes, but the tunnel removed 3 cubes. • The second cube originally had 64 small cubes, but two straight tunnels, 4...

*March 20, 2012*

**math**

80 min

*March 20, 2012*

**Math**

4.3

*March 20, 2012*

**Biology**

The problems of survival of animals on land are very different from those of survivial of animals in an aquatic environment. Describe four problems associated with animal survival in terrestrial environments but not in aquatic environments. For each problem, explain an ...

*March 18, 2012*

**algebra**

-3/5

*March 18, 2012*

**american history**

Plagiarize isn't good. You need to try it yourself. Plagiarizism won't get you anywhere in life.

*February 24, 2012*

**Math**

Thank you very much!

*January 10, 2012*

**Math**

Make a picture of: a model of the earth, a stop sign, a dinner plate and a clock. Which one doesnt belong? Why?

*January 10, 2012*

**Math**

How could you describe a cylinder to someone who has never seen one?

*November 3, 2011*

**physics**

a jogger runs with a veloicty of 6km/h (25 degrees N of W) for 35 min and then changes direction, Jogging for 20 min at 4.5km/h (65 degrees E of N). Using the parallelogram method for vector addition, determine the joggers total displacement and his average velocity for his ...

*October 11, 2011*

**math**

y*x=30 I need super help please

*October 7, 2011*

**math**

Thank You SOOOO much!!

*October 7, 2011*

**math**

n+9=64 i need help answering this PLEASE

*October 7, 2011*

**calculus**

A street light is at the top of a 20 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 35 ft from the base of the pole?

*October 5, 2011*

**calculus**

Water is leaking out of an inverted conical tank at a rate of 1600.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 10.0 meters and the diameter at the top is 3.5 meters. If the water level is rising ...

*October 5, 2011*

**calculus**

Water is leaking out of an inverted conical tank at a rate of cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height meters and the diameter at the top is meters. If the water level is rising at a rate of ...

*October 5, 2011*

**physics**

two boys on ice skates hold a rope between them. One is heavier than the other. The light weight boy pulls on the rope. how will they move and who will move faster?

*September 5, 2011*

**Physics**

an Ampere is the flow of 6.28 X 10^18 electrons per second past a fixed point in a conductor. how many flow past a fixed point if the current is 17.5 mA?

*September 4, 2011*

**geometry**

A person 6 ft tall is standing near a treet light so that he is 4/10 of the distance from the pole to the tip of his shadow.How high above the ground is the light bulb? If the persons head is exactly 5ft from the light bulb how far is the person from the pole,and how long is ...

*August 23, 2011*

**geometry**

A 30-lb child is siting at A(2,3) and a 50-lb child is at B(12,7) where units are feet .Find the point P between A and B which could be used as the fulcrum of a teeter board putting the two children in equilibrium. 30 AP=50 PB or (AP/PB)=5/3

*August 23, 2011*

**geometry**

A point p(x,y) is on the line through A(-4,4) and B(5,2).Find (a) the coordinates of P given that the segment AB is extended through B to P so that P is twice as far from A as far from B,and (b) the coordinates of P given that AB is extended through A to P so that P is three ...

*August 23, 2011*

**math**

how do i get the common denominator for 3 4 5 6 and 7?

*July 11, 2011*

**statistics**

1. A researcher is interested in comparing the effectiveness of three different kinds of therapy for anger problems. Eight participants are randomly assigned to three treatment conditions: Cognitive Therapy (CT), Cognitive-Behavioral Therapy (CBT), and Interpersonal Therapy (...

*June 28, 2011*

**Chemistry**

A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN. The equilibrium concentration of FeSCN2+ ([FeSCN2+]std) for this standard solution is assumed to be M. What permits this assumption? A. The concentration of Fe(NO3)...

*June 20, 2011*

**statistics**

2. A researcher hypothesized that the pulse rates of long-distance athletes differ from those of other athletes. He believed that the runners’ pulses would be slower. He obtained a random sample of 10 long-distance runners. He measured their resting pulses. Their pulses ...

*June 12, 2011*

**statistics**

5. The table below shows Psychology exam scores, Statistics Exam scores, and IQ scores for a random sample of students. What can you observe in the relationship between IQ and psychology, psychology and statistics, and IQ and statistics? Using a web-calculator, obtain the ...

*June 3, 2011*

**geometry**

Prove a triangle is an isosceles triangle ith P(2,3) A(5,7) and T1,4)

*April 9, 2011*

**math**

dont know

*March 31, 2011*

**SCIENCE**

What are the products of a chemical reaction involving NaCl, HNO3, and AgNO3?

*March 13, 2011*

**chemistry**

What are the products of a reaction between NaCl, HNO3, and AgNO3?

*March 13, 2011*

**chemistry**

I'm not sure what to do with the .018 and .024 o even have the answer from the book.

*February 9, 2011*

**chemistry**

Ok 24mg/100g and 18mg/100g from graph

*February 9, 2011*

**chemistry**

How many milligrams of a mixture containing equal numbers of moles of CH4 and N2 at 10 ATM total pressure will dissolve in 1 L of water at 20°C ??? ...

*February 9, 2011*

**Physics**

A cheetah is hunting. Its prey runs for 3.07 s at a constant velocity of +11.32 m/s. Starting from rest, what constant acceleration must the cheetah maintain in order to run the same distance as its prey runs in the same time?

*January 25, 2011*

**algebra**

Find three consecutive integers such that the sum of the smallest and largest integer is equal to twice the middle number

*January 20, 2011*

**science**

Ca3(PO4)2 + 2H2SO4 = 2CASO4 + Ca(H2PO4)2 How many moles of CaSO4 can be produced by the reaction of 0.39 moles of Ca3(PO4)2 with excess H2 SO4?

*October 24, 2010*

**Algebra**

Solve the system of equations by an algebraic method. Leave answer in exact form. 4x² - 7y² = 21 x² + 2y² = 99

*September 24, 2010*

**10th grade Academic Math**

hi can you help me with this problem please, thank you.----------------- If the speed of an experimental car is decreased by 8km/h it completes a 140 km trip in 2 hours more than had it been traveling at its usual speed. Determine its usual speed.

*June 7, 2010*

**10th grade Academic Math**

hi can you help me with this problem please, thank you.----------------- If the speed of an experimental car is decreased by 8km/h it completes a 140 km trip in 2 hours more than had it been traveling at its usual speed. Determine its usual speed.

*June 7, 2010*

**10th grade Academic Math**

hi can you help me with this problem please, thank you.----------------- If the speed of an experimental car is decreased by 8km/h it completes a 140 km trip in 2 hours more than had it been traveling at its usual speed. Determine its usual speed.

*June 7, 2010*

**physics**

A basketball is shot from 2 meters up at an angle of 60° above the x axis at an initial velocity of 9 m/s.What is the maximum height the ball will reach?

*May 31, 2010*

**geometry**

I am trying to find the interior and exterior angles of a 9 sided polygon .

*March 12, 2010*

**physics**

and ur answer is wrong neway m=1300 v~18 x=2.3 now solve

*March 3, 2010*

**physics**

try using the correct sigfigs?

*March 3, 2010*

**math**

What is the geometrical meaning of the central extension of the algebra of diffeomorphisms of the circle?

*November 1, 2009*

**calc**

Yes, that is what I got as well. So would we have to go further, or does that suffice? Thank you.

*November 1, 2009*

**2nd grade**

My 2nd grader son needs to write a speech on why he should be elected as a classroom president. Some of the ideas I suggested are - as a classroom president, he will keep the classroom clean; make sure students respect and behave nicely with each other... ANY OTHER SUGESSTIONS...

*October 21, 2009*

**maths**

3/8 means , 3 parts out of 8 parts of anything, in this case, full day or 24 hours. So divide 24 hours into eight equal parts. So 24/8 is 3. Now take three parts of it. That is 3 parts of 3 lots. The answer is 9 hours.

*March 15, 2009*

**math**

probability of getting a red chip is 7/25 and the probability of getting ablue chip is 6/25. The probability of getting red and blue is 7/25* 6/25. The answer is 42/625.

*March 15, 2009*

**8th Grade Math**

y = mx+b m=slope Just get it in that form to find what m is.

*January 15, 2009*

**Mathmatics**

I need help. I have no clue about how to solve this problem. Can someone go through it. Find the sope of the tangent line to the graph of the equation y=x^2(x-3) at x=-1 Thanks for the help.

*May 14, 2008*

**Physics**

Nick S. ? i got 15.87 m/s.... apparently the right answer is 9 m/s tho . i assumed there's no torque. v^2 = 2 ax. a = F / m.

*February 18, 2008*

**language**

what would be a simplified reason to tell grade ones why there is valentines day? What does it mean? why do people receive cards?

*February 8, 2008*

**History prooject**

I don't know who the people are that initiated and maintained segregation. I said Martin Luther King Jr. and Rosa Parks because those are the two of the people who helped end segregation.

*January 17, 2008*

**History prooject**

Are you wanting information on people like Martin Luther King Jr. and Rosa Parks?

*January 17, 2008*

**Algebra 2**

On #2 we are not aloud to use calculators but other problems like this that we are doing have a radical in them. Do you know how to solve this without a calculator?

*January 17, 2008*

**Algebra 2**

Thanks!

*January 17, 2008*

**Algebra 2**

Can anyone hep me with these questions? I'm not in a hurry or anything but I asked two hours ago. Thanks!

*January 17, 2008*

**Algebra 2**

1. How many solutions does this system of equations have? y=-2x+6 y=3(x+4) 2. What is the square root of 45? 3. solve 2(x-4)^2=14

*January 17, 2008*

**Chemistry**

What are the names and formula masses of MgSO4,MgSO4.7H20, and (NH4)2SO4. Please help

*November 20, 2007*

**chemistry**

2Sb + 3I2->2SbI3 Determine the limiting reactant and theoretical yield when 1.2 mol of Sb and 2.40 mol I2 are mixed.

*November 20, 2007*

**College Algebra**

Asquared + Bsquared = C squared

*November 20, 2007*

**finance**

Nucore Company is thinking of purchasing a new candy-wrapping machine at a cost of $370,000. The machine should save the company approximately $70,000 in operating costs per year over its estimated useful life of 10 years. The salvage value at the end of 10 years is expected ...

*September 25, 2007*

**finance**

Sunshine Corporation is considering several long-term investments. Management wants to accept the two best projects, given the following data: Project A B C D E Present value of net cash inflows . . . . . . . . $24,000 $44,000 $15,000 $30,000 $50,000 Investment cost...

*September 25, 2007*

**Geography**

Your question of how GDP and inflation are linked has two answers. GDP can increase either because of factors affecting aggregate supply or aggregate demand. If inflation were to increase, it would generally be caused be an overall increase in the demand for goods and services...

*August 23, 2007*

**algebra**

John has 36 books in his locker. He has text books,library books, and telephone books. How many books of each kind does he have if: lib + tel= 2x text books and text + tel = 3x lib books I think it'd be easier to let T,L and B denote text books, library books and telephone...

*October 15, 2006*