Saturday

January 21, 2017
Total # Posts: 769

**algebra**

can you please explain how you may have gotten the answer thanks:) The coordinates of quadrilateral VWXY are given below. Find the coordinates of its image after a dilation with the given scale factor. V(6, 2), W(–2, 4), X(–3, –2), Y(3, –5), scale factor of 2

*November 12, 2012*

**Algebra**

17. A bag contains 10 white golf balls and 6 striped golf balls. A golfer wants to add 112 golf balls to the bag. He wants the ratio of white to striped golf balls to remain the same. How many of each should he add?

*November 12, 2012*

**algebra, HELP!**

:(

*November 12, 2012*

**algebra, HELP!**

9. The sides of a rectangle are increased by a scale factor of 4. The perimeter of the smaller rectangle is 20 cm. What is the perimeter of the larger rectangle? (1 point) 320 cm 80 cm 120 cm 60 cm 10. A right triangle has an area of 13 m2. The dimensions of the triangle are ...

*November 12, 2012*

**physics**

A 10.0-g bullet is fired horizontally into a 101-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 155 N/m. The bullet becomes embedded in the block. If the bullet-block system compresses the spring ...

*November 11, 2012*

**ALGERBRA,PLEASE HELP!!!!!!**

nvrmnd i got this c,b,a,c!

*November 6, 2012*

**ALGERBRA,PLEASE HELP!!!!!!**

PLEASE HELP! ITS DUE TODAY!

*November 6, 2012*

**ALGERBRA,PLEASE HELP!!!!!!**

Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (1 point) A) (–2, 4) and (6, 6) B) (2, 4) and (6, 6) C)(–2, 4) and (6, –6) D)(2, –1) and (–3, 3) 2. Given a scale factor ...

*November 6, 2012*

**Math Expert Help Me**

c and b, i got all of these right, good luck

*October 24, 2012*

**French**

Je m'appelle Claire LeFèvre et j'habite en Californie. Mes parents travaillent dans une industrie privée à San Diego et j'aime habiter ici. Le temps est parfait. Il fait toujours beau temps! Ici, à San Diego, je peux parler franç...

*October 20, 2012*

**Economic**

can someone give an example of a good or service that has provided additional goods or services to society?

*September 29, 2012*

**Psychology**

Given your knowledge of dualism, choose the best interpretation of presence of dualism in this excerpt from an Emily Dickinson poem: The brain is wider than the sky, For, put them side by side, The one the other will include With ease, and you beside. A.The poem suggests that ...

*September 14, 2012*

**Psychology**

Need help double checking these tricky psychology questions. I put an asterix (*)next to my answers, Thanks! Which of the following fields is the best example of psychology as a basic science? A-Educational psychology B-industrial organizational psychology *C-social psychology...

*September 12, 2012*

**bratz wiki**

from the movie bratz in 2007, the person Natallia? who plays yasmine, is she a star to? plzz help 4 report

*September 11, 2012*

**Psychology**

Just n case anyone is looking at this later on and needs the help, the answer was C. Bird watching is to basic science as environmental conservation is t applied science.

*September 11, 2012*

**Psychology**

Need help double checking these tricky psychology questions. I put an asterix (*)next to my answers, Thanks! Which of the following fields is the best example of psychology as a basic science? A-Educational psychology B-industrial organizational psychology *C-social psychology...

*September 11, 2012*

**reading/ writing**

Where will you find the thesis sentence in an introductory paragraph?

*August 27, 2012*

**HEALTH**

Oh Charles

*August 22, 2012*

**health**

I'm from ashworth as well. It's just health.

*August 11, 2012*

**help please :)**

im doing the same problem and my choices are the exact same helpp me please!!!

*June 20, 2012*

**Physics!**

A 20 kg square slab with side lengths 3.0 m rotates around an axis perpendicular to the slab. A particle of mass 0.60 kg sits on each of the corners of the square. Also, a particle of mass 0.80 kg sits at the center of each of the edges. What is the moment of inertia of the ...

*June 9, 2012*

**MATH**

yes that is what i am having trouble with. that is the question exactly and there is no t within the equation =/

*May 27, 2012*

**MATH**

Please someone get back to me! I really don't know how to do this, need as soon as possible. Please help! A rabbit population satisfies the logistic equation dy dt = 2x(10to the exponent 6)y(10to the exponent6)- y; where t is the time measured in months. The population is...

*May 27, 2012*

**Math PLEASE HELP ASAP**

sorry, its 10 to the exponent -7 then y and then (10 to the exponent 6 take y)

*May 26, 2012*

**Math PLEASE HELP ASAP**

I really don't know how to do this, need as soon as possible. Please help! A rabbit population satis es the logistic equation dy dt = 2x10^-7y(10^6- y); where t is the time measured in months. The population is suddenly reduced to 40% of its steady state size by ...

*May 26, 2012*

**MATH**

I really don't know how to do this, need as soon as possible. Please help! A rabbit population satis es the logistic equation dy dt = 2x10^-7y(10^6- y); where t is the time measured in months. The population is suddenly reduced to 40% of its steady state size by ...

*May 25, 2012*

**physics mc question!!!!HELP**

Question # 1 : It a particle increases its speed by a factor of 2, what happens to the kinetic energy? a)doubles b)cuts in half c)increases by a factor of 4 d)depends on whether or not work is done on the particle Question # 2: An object falling near the surface of the Earth a...

*May 22, 2012*

**Chemistry**

Now if your lab partner determined that there were 5.001 x 1022 atoms of K in an unknown sample of KMnO4, how many milligrams would the unknown sample weigh?

*May 19, 2012*

**Chemistry**

How many moles of K atoms are there in 152.8247 grams of KMnO4?

*May 19, 2012*

**physics- MC QUESTIONS**

Q 1: which of the following conditions occur when an object is in static equilibrium ? (can be more than one option) a. net force on the object is zero b. net torque on the object is zero c. acceleration of the object is zero d. velocity of the object is zero Q2: Student A ...

*May 9, 2012*

**AP Literature-Macbeth**

How does the banquet scene blur the clear-cut and common-sense distinction that most of us make between the real and imaginary? In what other scenes has this distinction been blurred?

*April 24, 2012*

**Math**

you have 12 blueberry muffins for $7.20 , 8 chocolatechip for $4.40, and 6 raisin for $4.50 What type of muffin cost the Least?

*April 15, 2012*

**math**

X2+11x=-24

*March 27, 2012*

**Physics**

A 0.31-kg stone is held 1.2 m above the top edge of a water well and then dropped into it. The well has a depth of 5.6 m. (a) Taking y = 0 at the top edge of the well, what is the gravitational potential energy of the stone–Earth system before the stone is released? (b) ...

*March 19, 2012*

**Physics**

Two blocks are connected by a light string that passes over a frictionless pulley as in the figure below. The system is released from rest while m2 is on the floor and m1 is a distance h above the floor. (a) Assuming m1 > m2, find an expression for the speed of m1 just as ...

*March 19, 2012*

**Physics**

Im still confused. Ive tried solving for k a couple of different ways and the website tells me that I am wrong. My answers have ranged from .0286 to 791.1 N/m. Ive tried converting 1.55 cm to m, and it still says that I am wrong.

*March 5, 2012*

**Physics**

Two blocks, each with a mass = 0.168 kg, can slide without friction on a horizontal surface. Initially, block 1 is in motion with a speed = 1.28 m/s; block 2 is at rest. When block 1 collides with block 2, a spring bumper on block 1 is compressed. Maximum compression of the ...

*March 5, 2012*

**Physics 161**

i really wanna know that why is centripetal force equal to frictional force??? n a request... free body diagram please!! please...

*February 28, 2012*

**Microeconomics**

Consider the markets for pizza and fried chicken. Show graphically and explain the impact you would expect if technological change leads to the development of a pizza oven that is both much cheaper and uses less energy than current ovens.

*February 22, 2012*

**Physics help.**

The 78.0 kg climber is supported in the "chimney" by the friction forces exerted on his shoes and back. The static coefficients of friction between his shoes and the wall, and between his back and the wall, are 0.840 and 0.630, respectively. What is the minimum ...

*February 21, 2012*

**Physics**

At the bow of a ship on a stormy sea, a crewman conducts an experiment by standing on a bathroom scale. In calm waters, the scale reads 172 lb. During the storm, the crewman finds a maximum reading of 215 lb and a minimum reading of 131 lb. Calculate the maximum upward and ...

*February 21, 2012*

**Math**

The point L(a,b)in quadrant 1, is rotated 90 degrees about the origin and then reflected across the y-axis. What are the coordinates of the image of L?

*February 2, 2012*

**Math**

I need help with the riddle in pizzaz, "what should you say when you meet an angel?" Anyone know?

*February 2, 2012*

**12th Grade Health Class**

My butt is itchy, how can I scratch it?

*January 16, 2012*

**Math**

when 6 is increased by the number of 12 the result is 102 what is the number?

*January 15, 2012*

**Math**

40 percent of what number is 782?

*January 15, 2012*

**english**

They are correct

*January 11, 2012*

**english**

Ok, I'm trusting these answers..

*January 11, 2012*

**Psychology**

How does hindsight bias relate to a presidential election?

*January 2, 2012*

**calc- please help im so confused**

The top half of a storage tank is a circular cylinder that is 5 meters tall and has a diameter 2 meters. The bottom half of the tank is shaped like an 8-meter inverted cone (pointed down). Let h represent the depth of the tank's contents. At t = 0 minutes, a release valve ...

*January 1, 2012*

**calc- please help im so confused**

differentiation & related rates

*January 1, 2012*

**calc- please help im so confused**

The top half of a storage tank is a circular cylinder that is 5 meters tall and has a diameter 2 meters. The bottom half of the tank is shaped like an 8-meter inverted cone (pointed down). Let h represent the depth of the tank's contents. At t = 0 minutes, a release valve ...

*January 1, 2012*

**Question**

honors

*January 1, 2012*

**Social Studies**

Name all the brands of chewing gum.Also is ? a gum brand, too?

*January 1, 2012*

**social studies**

what purification progress bears Louis Pasteur's name?

*January 1, 2012*

**stuff**

well i was just knowing if it was okay

*December 29, 2011*

**stuff**

can it be also servered as lunch or breakfast

*December 29, 2011*

**stuff**

what time of day do you eat mac and cheese.suggestions here

*December 29, 2011*

**Algebra 2**

Evaluate with nth Roots. For mammals, the lung volume V ( in milliliters) can be modeled by V=170m^4/5 where m is the body mass ( in kilograms)/ Find the lung volume of each mammal. Mongoose - Body Mass(kg) = 1.14 Camel - Body Mass (kg) = 229

*December 14, 2011*

**Music**

What are the musical elements used in last goodbye by jeff buckley

*December 12, 2011*

**ALgebra**

(1) GCF= 1 (2) GCF= x^2 I'm pretty sure for the 2nd problem it's x^2 but I don't know about 1 x;

*December 7, 2011*

**algebra**

Jesus is bad

*December 6, 2011*

**Math**

What are the x-intercept of the graph of 35x^2-20=60x

*November 14, 2011*

**Math**

Can you help me check if I'm doing this correctly or not? I'm solving this quadratic equation by us ing the quadratic equation. -9v^2+35v-30=1-v -9v^2+36v-29=0 -36 ± √36^2-4(-9)(29) divided by 2(-9) -35 ± √1296 + 1044 divided by -18 -36 &...

*November 14, 2011*

**Math**

Solve the equation by factoring, by finding square roots, or by using the quadratic formula. 3(x+4)^2= -27

*November 14, 2011*

**Help- Physics**

How much work did the movers do (horizontally) pushing a 130kg crate 10.1 m across a rough floor without acceleration, if the effective coefficient of friction was 0.50?

*November 11, 2011*

**World Geography**

What current events have gone on in Switzerland since September? I only need one and it only has to be vague.

*November 10, 2011*

**World Geography**

What websites will have information on Switerland Attractinos? I need to find 4 Attractions. A Religious, Cultural, Physical(Natural), and a Historical one.

*November 10, 2011*

**Living Environment**

Wassup

*November 8, 2011*

**ELA**

No I mean the v/cv pattern

*November 7, 2011*

**Geometry**

9d-d/5=88 c/2+11c=92 How do i solve for the variables d and c?

*November 7, 2011*

**Spanish**

ok you don't have to put A in front of everything or at least that is what i was taught as for the other words i'm not entirly sure.

*November 7, 2011*

**geometry**

the 2 triangles are congruent by the angle, angle, side theorem or aas. I am pretty positive that's the answer but you might want to double check just to make sure. Hope i could help you out :)

*November 6, 2011*

**Math-System of Equations**

1. Solve for x, y, z in the following system: 2x-3y-2=z y-x+z=1 -y-2z=7 The answers are: x=-7 y=-5 and z=-1 however I don't know how to go about this.

*November 3, 2011*

**Physics**

What is the acceleration experienced by the tip of the 1.5 cm-long sweep second hand on your wrist watch?

*October 23, 2011*

**Physics**

A bucket of mass 2.20 kg is whirled in a vertical circle of radius 1.40 m. At the lowest point of its motion the tension in the rope supporting the bucket is 30.0 N. Find the speed of the bucket. How fast must the bucket move at the top of the circle so that the rope does not ...

*October 23, 2011*

**history**

Who are green party political supporter?

*October 16, 2011*

**Geometry**

Sinve b is midpoint of ac then ab and ac are the same length. So, 6x+7 = 18x-4. Hope this helps.

*October 16, 2011*

**Math**

On July 5th six different people reported to the police that they had seen Bigfoot, the large hairy creature sometimes seen but never captured. The next day, twice as many people called the police; sure they had seen the creature. Each day the police received twice as many ...

*October 2, 2011*

**statistics**

false

*September 27, 2011*

**Organic Chemistry**

23 ml

*September 18, 2011*

**Calc**

find F''(pi/3) f(x)= 4cos(x/2) i got -cos(pi/6) but i don't think that's the correct answer... Thanks!

*September 11, 2011*

**math**

What is the differnece in meaning between the notstions of a line over QR and not a line over QR?

*September 7, 2011*

**math**

What is the differnece in meaning between the notstions of a line over QR and not a line over QR?

*September 7, 2011*

**chemistry**

what does 9.54e-7+7.25e-4 equal?

*September 1, 2011*

**geometry**

Hdmakrhsiru

*September 1, 2011*

**Chemistry**

Estimate the value of the equilibrium constant for the dissolution of LiF(s) in a strong acid

*July 5, 2011*

**Chemistry**

To 0.360 L of 0.140 M NH3 is added 0.150 L of 0.100 M MgOH2. How many grams of (NH4)2SO4 should be present to prevent precipitation of Mg(OH)2 (s)? THANK YOU!!!

*June 23, 2011*

**Chemistry**

Find the [OH-] of .196 M NaOH and .262 M NH4Cl

*June 21, 2011*

**Chem**

So do you add the 6.6E-3 and 1E-2 together as the value for Ba^2+?

*June 21, 2011*

**Chem**

6.6×10−3 M Ba(OH)2 and 1.00×10−2 M BaCl2 what is [OH-] of solution?

*June 21, 2011*

**chemistry**

Molybdenum (Mo) has a density of 10.22 g/cm3 and it crystalizes into a fcc unit cell, calculate the radius of a (Mo) atom?

*June 7, 2011*

**world issuse**

LUGGAGE

*May 24, 2011*

**Chemistry**

the concentration of HCl, a strong acid is 0.500 M. if 20.0 ml HCl is needed to titrate 40.0 ml of NaOH, what is the concentration of NaOH I don't understand how to do this. Can I see a step by step way of how to do this please

*May 23, 2011*

**Math**

Order of operstions

*May 10, 2011*

**Math**

-6 5/6 + 2 1/3

*May 9, 2011*

**chem**

What is being oxidized in each of the following reactions? (a) Sr(s) + F2(g) SrF2(s) F2 SrF2 Sr .(b) H2(g) + I2(g) 2 HI(g) H2 HI I2 .(c) 2 Li(s) + Pb2+(aq) 2 Li+(aq) + Pb(s) Pb2+ Li+ Pb Li thanks:) can you give an explanation. I know a is Sr but I don't get why. If it ...

*May 3, 2011*

**chemistry**

what solution of sugar in water has the highest molarity?

*April 28, 2011*

**chemistry**

what is the molarity of a solution containing 23g of NaCl in 500 mL of solution? (the molecular mass of NaCl is 58.44.)

*April 28, 2011*

**chemistry**

if you have 2 mol of glucose in 4L of solution, what is the molarity of the solution?

*April 28, 2011*