# Posts by anonymous

Total # Posts: 106,677

**Check Answer!!**

You deposit $4,600 in an account earning 2.5% interest compounded quarterly. How much will you have in the account after 8 years? (Note: Use n=12 for monthly compounding, n=4 for quarterly compounding, n=2 for semiannual compounding, and n=1 for annual compounding.) 5082.31

*December 7, 2016*

**Chemistry**

A certain substance has a heat of vaporization of 62.08 kJ/mol. At what Kelvin temperature will the vapor pressure be 4.50 times higher than it was at 361 K? I've gotten it to the point of: ln(4.50)=7466.47423176378616 K (1/361 - 1/T2) Solving for T2 but I don't know ...

*December 7, 2016*

**Chemistry**

Can anyone help?!

*December 7, 2016*

**Chemistry**

I just need some ideas of what to put for these on my homework examples for extra credit Name a molecule that has: A) Tetrahedral Geometry B) Trigonal planar geometry C) Linear Geometry D) Bent Geometry

*December 7, 2016*

**algebra 1**

Name the point of intersection for the following system, if it exists. 4x â€“ 3y = -3 3x â€“ y = -6

*December 7, 2016*

**pre calculus**

Explain how you sketch a plane curve given by parametric equations? What is meant by the orientation of the curve?

*December 7, 2016*

**Maths**

An auditorium has 600 seats.2/3 of the seats are empty.how many seats are empty

*December 7, 2016*

**Science**

1) What physical features do producers and consumers have to help them survive in their environment

*December 6, 2016*

**Science**

What are examples of first, second and third level consumers in the Chesapeake Bay?

*December 6, 2016*

**chemistry**

In a calorimetry experiment, 2.14 g of NH4Cl is dissolved in 100.0 mL of water. The temperature drops by 1.43°C. Calculate the molar heat of solution for NH4Cl.

*December 6, 2016*

**math**

In a load of 3/4 tons of steel roda.1/8 of them are bent. How many steel rods are bent?

*December 6, 2016*

**math**

In a load of 3/4 tons of steel roda.1/8 of them are bent. How many steel rods are bent?

*December 6, 2016*

**Calculus**

Find the open intervals on which f(x) = -6x^2 + 96x + 7 is increasing or decreasing. a. increasing on (-inf, 16); decreasing on (16, inf). b. increasing on (-inf, 14); decreasing on (14, inf). c. increasing on (-inf, 84); decreasing on (84, inf). d. increasing on (-inf, 56); ...

*December 6, 2016*

**Math**

Thank you so much Damon.

*December 6, 2016*

**Math**

Hi I need a little help with a couple math questions I believe I have the answers, if someone can please just check them thank you. 1. The table shows the number of miles driven over time. Time 4|6|8|10 Miles 204|306|408|510 Express the relationship between distance and time ...

*December 6, 2016*

**ARCHIMEDES PRINCIPLE**

Using archimedes principle find the depth submerged of a log in water. Diameter 2.3cm radius 1.15cm, mass 37g, length of log 10cm, density of water 1000kg/m^3. Myself I can get to the submereged volume using Fb=Pvg but I don't know an equation for the volume of a segmented...

*December 6, 2016*

**Mathematics**

Thank You!!

*December 6, 2016*

**Mathematics**

At a local track meet, RCMS won 3 blue ribbons than red ribbons. They also won 7 more yellow ribbons than red ribbons. RCMS won a total of 28 ribbons. How many of each color did RCMS win?

*December 6, 2016*

**Physics!!!!!!**

A 0.18 kg baseball moving at +26 m/s is slowed to a stop by a catcher who exerts a constant force of ?360 N. a) How long does it take this force to stop the ball? b) How far does the ball travel before stop- ping?

*December 6, 2016*

**Social studies**

Someone please!?!?

*December 6, 2016*

**Chemistry**

I just need some ideas of what to put for these on my homework examples for extra credit Name a molecule that has: A) Tetrahedral Geometry B) Trigonal planar geometry C) Linear Geometry D) Bent Geometry

*December 6, 2016*

**Psychology**

OK, thank you both!

*December 6, 2016*

**Psychology**

Is positive psychology the study of happiness? Or is it more broad- the study of all positive human attributes?

*December 6, 2016*

**science**

A 33.1 kg crate rests on a horizontal floor, and a 69.0 kg person is standing on the crate. Determine the magnitude of the normal force that the floor exerts on the crate.

*December 6, 2016*

**chemistry**

how does H-bonding affect freezing point depression? I did a lab and calculated my exp molecular weight for benzoic acid and i got a value that is double the known value. My prof said it is due to H-bonding...i don't understand what effect it has on the MW...

*December 6, 2016*

**precalculus**

How are the graphs of an ellipse and a hyperbola similiar and different?

*December 6, 2016*

**precalculus**

How is the equation of a hyperbola and an ellipse related?How are the graphs of an ellipse and a hyperbola similiar and different?

*December 6, 2016*

**elemination**

x=2y-7 8x+5y=7

*December 6, 2016*

**Science. Answer Check**

They both look right

*December 6, 2016*

**math**

the nth team of a progression is 3n+4.is the pattern of number, so formed ,in A.P.?if so, find its 6th term

*December 6, 2016*

**math**

The Curved surface area of the cylinder is 1760cm^2 .and its volume is 12320 cm^3. Find its height

*December 6, 2016*

**Maths**

The 5th term of an arithmetic progression is 3times of 2nd term and 12th term exceeds 2times of 6th term by 1. Find the 16th term

*December 6, 2016*

**physics**

An electron beam is accelerated through 50kv potential difference and then passes through magnetic field produced by coils for 1cm the screen is located 10 cm from end is 50 cm wide.when the field is turned off the beam stikes the centre of screen.what field strength is ...

*December 6, 2016*

**LIT**

two numbers sum to 37 twice the first subtracted from the second is 4 find the numbers

*December 6, 2016*

**Algebra**

Find an equation of a parabola with a vertex at the origin and directrix y =–4

*December 5, 2016*

**Math**

maybe we can all be nice here and act like nice people or i will report you

*December 5, 2016*

**chemistry chem check**

Two liquids, 'R' and 'S' form an ideal mixture, what is true about the relation between the mole fraction of R in the liquid phase (X_r) and that of the vapor phase (Y_r) for most mole fractions in the range of 0<X_r<1. A)X_r < Y_r B) X_r > Y_r C)...

*December 5, 2016*

**math**

Ali, Clara, and Shan raised money for new books for the school library. Ali raised 20% more than Clara and $58 more than Shan. Clara raised 1/4 more than Shan. A) How much money did they raise altogether B) What percent of the total money did Clara raise? Thank you, btw five ...

*December 5, 2016*

**PLEASE HELP SOCIAL STUDIES CONNECTIONS ACDEMY 6th**

Damon do you do connections?

*December 5, 2016*

**PLEASE HELP SOCIAL STUDIES CONNECTIONS ACDEMY 6th**

No one asked for extra

*December 5, 2016*

**PLEASE HELP SOCIAL STUDIES CONNECTIONS ACDEMY 6th**

IDk

*December 5, 2016*

**PLEASE HELP SOCIAL STUDIES CONNECTIONS ACDEMY 6th**

Thanks! So Ethiopia is the answer??

*December 5, 2016*

**PLEASE HELP SOCIAL STUDIES CONNECTIONS ACDEMY 6th**

what lands beside egypt does the nile flood

*December 5, 2016*

**math**

On a farm ,the ratio of cows to chickens to horses is 2 to 7 to 3. There are 8 fewer horses than chickens on the farm.How many total animals are on the farm?

*December 5, 2016*

**Algebra**

Find an equation of a parabola with a vertex at the origin and directrix y= -4

*December 5, 2016*

**Algebra**

The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. The microphone itself is placed on the focus of the parabola. If the parabola is 60 inches wide and 30 inches deep, how far from the vertex should the microphone be placed?

*December 5, 2016*

**Social studies please help**

What were the answers?

*December 5, 2016*

**language arts**

It is C I think

*December 5, 2016*

**URGENT 4TH GRADE MATH**

733.1

*December 5, 2016*

**african american history**

what ways did slave master's exercise "total power" over their slaves?

*December 5, 2016*

**african american history**

name some differences between the historic condition of slaves and that of wives, children and professional athletes

*December 5, 2016*

**MATH URGENT!!!!!**

The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 2x + 1 How much more is the rate of ...

*December 5, 2016*

**precalculs**

Explain what each of the following represents, and how equations (a) and (b) are equivalent. (a) y = a(x - h)2 + k, a ? 0 (b) (x - h)2 = 4p(y - k), p ? 0 (c) (y - k)2 = 4p(x - h), p ? 0 can you check my work and explain how equations (a) and (b) are equivalent. (b)This ...

*December 5, 2016*

**American Government**

Did you get the answers i want to check mine? I need to pass this class.

*December 5, 2016*

**American Government**

Did you get the answers? I wanna check mine.

*December 5, 2016*

**American Government**

Oh cool

*December 5, 2016*

**American Government**

Answering the question

*December 5, 2016*

**math**

trololololol

*December 5, 2016*

**precallcuslus**

can you check my work and explain the last question because I do not uderstand. Explain what each of the following represents, and how y = a(x - h)2 + k, a ? 0 and (x - h)2 = 4p(y - k), p ? 0 are equivalent. The equation (x - h)2 = 4p(y - k), p ? 0 is used when the parabola ...

*December 5, 2016*

**africa**

explain the american paradox of freedom and slavery

*December 5, 2016*

**chemistry**

What is the seperation energy ineV for Be3+ in the first excited state in eV?

*December 5, 2016*

**precalculus**

Find the equation of a Parabola with Vertex: (-2,4) and directrix: y=7

*December 5, 2016*

**pre calculus**

Find the equation of a Parabola with Vertex: (2,-1) and directrix: x= -2

*December 5, 2016*

**Maths**

The 5th term of an arithmetic progression is 3times of 2nd term and 12th term exceeds 2times of 6th term by 1. Find the 16th term

*December 5, 2016*

**Maths**

The 5th term of an arithmetic progression is 3times of 2nd term and 12th term exceeds 2times of 6th term by 1. Find the 16th term

*December 5, 2016*

**Math**

The ratio of the number of goats in farm x to the number of goats in farm y was 9:4. After 35 goats were transferred from farm x to farm y,there was an equal number of goats in each farm. how many goats were there in each farm at first?

*December 5, 2016*

**Math**

Given:AD=20 AC=15 Prove:CD=5

*December 5, 2016*

**Math**

TanA VYAPAK SLOVED

*December 5, 2016*

**Math**

1+1=?

*December 5, 2016*

**Math - Coordinate Geometry**

Parallel to 4x-y+1=0, sorry.

*December 5, 2016*

**Math - Coordinate Geometry**

Find the equation of the line which cuts the y-axis at -3 and is parallel to 4x-y+=0. Please show working out, thanks.

*December 5, 2016*

**Physics**

Kate (m = 50 kg) is swinging on a tire tied by a (light) rope (L = 3 m) to a tree limb. Her twin Ashley comes along and squeezes into the tire with her. Assume that at all times the centre of mass of the person(s) riding the tire is at the end of the rope. a) What was the ...

*December 4, 2016*

**Physics**

A mass (0.5 kg) and spring (k = 250 N/m) system oscillates with an amplitude of 3.5 cm. a) What is the total mechanical energy of the system? b) What is the maximum speed of the mass? c) What is the maximum acceleration of the mass? I need help please. What equation should I ...

*December 4, 2016*

**Physics**

A 0.5 kg air-track car is attached to the end of a horizontal spring of constant k = 20 N/m. The car is displaced 15 cm from its equilibrium point and released. a) What is the car's maximum speed? b) What is the car's maximum acceleration? c) What is the frequency f of...

*December 4, 2016*

**Physics**

MOONMAN MOONMAN CANT YOU SEE THIS WEBSItE IS A JOKE

*December 4, 2016*

**Math**

Input 48,24,12,6 Output24,12,6,3 Rule?

*December 4, 2016*

**Algebra**

Whats the domain and range?

*December 4, 2016*

**Algebra**

Identify the type of conic section that has the equation 9x^2 + 25y^2 =225 and identify its domain and range.

*December 4, 2016*

**math**

Theresa has a chose of which pack of pencils to buy. At the store 20 pencils cost $4.00, or 12 pencils for $2,70. A) which is the better buy based on its cost per pencil? B) what is the difference of the cost per pencil between each pack?

*December 4, 2016*

**SS**

PLZ Help Me you need a lot of help with other things because you cant even have the effort to spell "Please."

*December 4, 2016*

**Physics!!!!!!**

That Answer is wrong

*December 4, 2016*

**Physics!!!!!!**

In a scene in an action movie, a stunt man jumps from the top of one building to the top of another building 5.0 m away. After a running start, he leaps at an angle of 10? with respect to the flat roof while traveling at a speed of 5.6 m/s. The acceleration of gravity is 9.81 ...

*December 4, 2016*

**Chemistry**

Molarity x Volume in Liters = moles mass(grams) = moles x formula weight

*December 4, 2016*

**science**

what city goes below sea level first miami or new orleans?

*December 4, 2016*

**English**

it shoes us that meth is bad

*December 4, 2016*

**math**

On May 23, Samantha Best borrowed $4,000 from the Tri City Credit Union at 13% for 160 days. The credit union uses the exact interest method.What was the maturity value of the loan?

*December 4, 2016*

**Physics**

A 52.4 kg pole vaulter running at 10.8 m/s vaults over the bar. The acceleration of gravity is 9.81 m/s2 . If the vaulter’s horizontal component of ve- locity over the bar is 0.60 m/s and air resis- tance is disregarded, how high is the jump? Answer in units of m.

*December 4, 2016*

**pre calculus**

use matrices to solve the system of equations , if possible 2x+3y+z=10 2x-3y-3z=22 4x-2y+3z=-2

*December 4, 2016*

**Maths**

Mari is 3 times older then nandhini after ten years the sum of thare ages will be 80 find the present age???

*December 4, 2016*

**Math**

6 years of the same morning?

*December 4, 2016*

**Physics**

In a scene in an action movie, a stunt man jumps from the top of one building to the top of another building 5.0 m away. After a running start, he leaps at an angle of 10? with respect to the flat roof while traveling at a speed of 5.6 m/s. The acceleration of gravity is 9.81 ...

*December 4, 2016*

**Physics**

A daredevil is shot out of a cannon at 44.9? to the horizontal with an initial speed of 27.5 m/s. A net is positioned at a horizontal dis- tance of 41.2 m from the cannon from which the daredevil is shot. The acceleration of gravity is 9.81 m/s2 . At what height above the ...

*December 4, 2016*

**pre calculus**

use matrices to solve the system of equations , if possible. 2x+y+2z=4 2x+2y=5 2x-y+6z=2

*December 4, 2016*

**Maths**

The length and breadth of a rectangular hall are 24m and 18m.what is the largest straight line that can be drawn in the floor of the hall.

*December 4, 2016*

**Propotion**

A taxi cover a distance at the speed of 60 km/hr. How much time it will take to cover the same distance at the speed of 80 km/hr?

*December 4, 2016*

**math**

Vgggv

*December 3, 2016*

**math**

Vgggv

*December 3, 2016*

**Physics**

A baseball is thrown at an angle of 20? relative to the ground at a speed of 25.8 m/s. The ball is caught 43.6152 m from the thrower. The acceleration due to gravity is 9.81 m/s2 .

*December 3, 2016*