Saturday
December 20, 2014

Posts by Erin


Total # Posts: 613

Math( help please ! )
determine the maximum or the minimum of a)2x^2+12x
October 17, 2011

Math( help please ! )
The profit p(x) of a cosmetics company , in thousands of dollars . is given by p(x) =-5t^2=400x-2550, where x is the amount spent on advertising in thousands of dollars a) determine the maximum profit the company can make b) dtermine the amount spent on advertising that will ...
October 17, 2011

Math( help please ! )
The height of a ball thrown vertically upward from a rooftop is modelled by h(t)=-5t^2=20t=50, where h(t) is the ball's height above the gorund,in meters, at time t seconds after the throw a) determine the maximum height of the ball b) how long does it take for the ball to...
October 17, 2011

geometry
Suppose the parallelogram shown has angles defined by the following expressions: angle A = 6x + 19; angle B = 3x - 21; angle C = 6x + 19; and angle D = 3x - 21? What is the measure of the largest angle?
October 16, 2011

Art Appreciation
ok thank you
October 16, 2011

Art Appreciation
I do not understand it.
October 16, 2011

Art Appreciation
Visit the following Web sites and explore the collections of Ancient Art there: The Metropolitan Museum of Art The Louvre Museum The Smithsonian Institution Freer Gallery and Sackler Gallery See the Course Materials List for access to these sites. From the gallery Web sites ...
October 16, 2011

geometry
Suppose the parallelogram shown has angles defined by the following expressions: angle A = 6x + 19; angle B = 3x - 21; angle C = 6x + 19; and angle D = 3x - 21? What is the measure of the largest angle?
October 16, 2011

chemistry
A student found that there are 115 drops of glacial acetic acid in 2.00 mL. Calculate the number of drops of glacial acetic acid, HC2H3O2 required to make 225 mL of 0.1 M acetic acid solution
October 16, 2011

Math( please help)
determine the maximum or the minimum value for each a)y=2x^2+12 b)y=-3x^2-12x+15 c)3x(x-2)+5
October 16, 2011

Biology( HELP PLEASE)
give the two possible alleles in the eggs produced by a women whose genotype is JjKkLl
October 14, 2011

Math ( any help would be great!)
Thankss !!
October 13, 2011

Math ( any help would be great!)
a ball is kicked in the air from the top of a cliff , the path that the ball travels is given by the equation h(t)=-5t^2+17t+22, where h(t) is the height given in meters and t is the time seconds. a) how high is the cliff ? b)what is the maximum height the ball reaches ? c)...
October 13, 2011

Physics
two students are attempting to lift a sign to the top of a tall building, each is pulling equally with 100 newtons of force, on the two ropes. The ropes are attached to opposit corners of the sign, and the angle between them is 60. compute the resultant force.
October 13, 2011

ALGEBRA 1 HONORS
im suppose to find the slope and y-intercept.
October 11, 2011

ALGEBRA 1 HONORS
whats the answer to x+4=4y
October 11, 2011

Physics
A passenger walks from one side of a ferry to the other as it approaches a dock. If the passenger's velocity is 1.50 m/s due north relative to the ferry, and 4.50 m/s at an angle of 30.0* west of north relative to the water, what are the direction and magnitude of the ...
October 2, 2011

physics
There are two blocks connected by a string and tied to a wall on an incline. The mass of the lower block is 1.0kg; the mass of the upper block is 2.0kg. Given that the angle of the incline is 31*, find the tension in (a) the string connecting the two blocks and (b) the string ...
October 2, 2011

physics
As you hurry to catch your flight at the airport, you encounter a moving walkway that is 85m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68s to cover 85m when walking on the ground, how long will it take you to cover the same distance on the walkway...
October 2, 2011

Physics
You shoot an arrow into the air. 2.oo seconds later the arrow has gone straight upward to a height of 30 meters above its launch point. (a) What was the arrow's initial speed? (b) How long did it take for the arrow to first reach a height of 15 meters above it's launch...
October 1, 2011

physics
An Astronaut on the Moon drops a rock straight downward from a height of 1.25 meters. If the acceleration of gravity on the Moon is 1.62 meters per second squared, what is the speed of the rock just before it lands?
October 1, 2011

college math
please help me write the equation and solve for it. 1).in a basketball game, eric made half as many free throws as dan. if the total number of free throws made by both men was 18, how many free theows did eric make?
September 27, 2011

Science 6th grade
how can granite and slate peices be held together?
September 22, 2011

6th grade social studies
no im in 6th writeacher u r rong. i just got done w/ that i will help u in a minute
September 22, 2011

physics
A helicopter is rising at 5 m/s when a bag is dropped. After 2 seconds what is the bag's velocity? what is the bag's position? and how far below the helicopter is the bag?
September 21, 2011

college math
write the decimal as a fraction or a mixed number. write your answer in simplest form. .3282 so far i got this, 3282/100,000 then simplified to 1641/50,000
September 9, 2011

Physics
what is the volume of an object whos density is 2.2 g/cm^3 and has a mass of 50 g?
September 5, 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 14 m/s. (a) What was the speed at the first point? 1 m/s (b) What is the constant acceleration? 2 m/s2 (c) How far behind the ...
September 2, 2011

Mathematics
"Write the unit rate as a fraction" "25 feet per second" How do you solve this?
August 29, 2011

anatomy
Voluntary actions are controlled within the _________ of the frontal lobe
July 26, 2011

Algebra
Determine the approximate maximum distance y=-0.01x2 +0.7x+6.1
June 20, 2011

math
Write a linear function that satisfies the given conditions: f(0)=12, F(3)= -2
May 22, 2011

Math
Write an equation of the line that is perpendicular to the line y=2x-1 and passes throgh the point (0,-3)
May 22, 2011

Algebra
How do i simplify this? [(3x+1)/(x-2)] + [(2x-1)/(x-2)]
May 22, 2011

Life orientation(Reaseach)
I have a human rights poster to complete and i need help.
May 21, 2011

geometry
the area of a trapezoid is 108 square inches and one of its bases has a length of 8 inches. If the height of the trapezoid is 1.5 feet,f ind the length of the other base in inches.
May 11, 2011

physics
A shiny metallic Christmas ball ornament 5.10 cm in diameter is used as a mirror. What is the mirror's focal length? please answer in cm. thanks.
May 7, 2011

Math
I really need a math dictionary... I need the following definitions Please: point line intersecting lines parallel lines vertical lines horizontal lines acute angle obtuse angle right angle square rectangle trapezoid rhombus pentagon hexagon octagon triangle circle chord ...
May 3, 2011

Math
But when i search a word I didn't understand what it meant. Can anyone help me find a GOOD math dictionary?
May 3, 2011

Math
Thanks Ms.Sue!! It has been a LONG time since I posted!!
May 3, 2011

Math
I need the following definitions Please: point line intersecting lines parallel lines vertical lines horizontal lines acute angle obtuse angle right angle square rectangle trapezoid rhombus pentagon hexagon octagon triangle circle chord radius diameter cube rectangular prism ...
May 3, 2011

science
What mass of water, in grams, would have to be decomposed to produce 26.3 L of molecular oxygen at STP?
May 3, 2011

physics
Two children are having a splashing competition using a diving board. The first child is very small and jumps lightly off the end of the diving board. The second child, who is much larger, jumps heavily off the board. A. In what way or ways, if any, are the vibrations of the ...
April 28, 2011

Geology
The Love of Christ
April 20, 2011

Language Arts
Well actually, why wouldn't there be a comma after the yes? Why is there one after squeaky?
April 13, 2011

Language Arts
thanks!
April 13, 2011

Language Arts
In this sentence: I held it back and managed a squeaky "yes" in response. How would you correctly punctuate the yes part?
April 13, 2011

chemistry
Calculate the molar solubility of Cu(OH)2, Ksp = 2.2 × 10–20, in 0.52 M NH3. Don't forget to use the complexation reaction Cu2+ + 4 NH3 ⇌ Cu(NH3)42+, K = 5.0 × 1013 What does he mean by the complexation reaction??? So confused, please help!!!
April 4, 2011

Math
Solving quadratic equations by graphing? 3. x2-4x + 6 = 0 4. x2-4x-1=0 5. 4x2-12x + 3 = 0 6. x2-2x-4=0
February 27, 2011

Reading
The Great Gatsby Movie Discussion Questions? Compare and contrast Gatsby's social class with that of Tom and Daisy Buchanan. How does geography contribute to the definintion of social class in The Great Gatsby? What part of his past is Gatsby trying to recapture? Is he ...
February 27, 2011

AP World History
You're right, I can easily rewrite a fairly similar essay. Thank you for your help!
February 27, 2011

AP World History
Comparing the four Classical Societies, in essay format, of China (Han & Qin), India (Gupta empire) and Rome and Greece. I really need a good essay because I lost mine the day it was due and now it's late.
February 27, 2011

Pre-Algebra
Thank you so much! It makes sense now!
February 16, 2011

Pre-Algebra
I need help with scales, please! Q: You are making a scale drawing of a room using a scale of 1-inch:4-feet. a) The room is 14 feet by 18 feet. Find its dimensions in the drawing. b) A sofa in the room has a lenght of 6 feet. Find the length of the sofa in the drawing. Thank ...
February 16, 2011

geometry honors
if the volume of the pyramid is 64 feet cubed and the height is 16 feet what is the area of the base measured in square inches?
February 9, 2011

World History
Why was Egypt important to Europeans in the nineteeth century? Great Britain was determined to have complete control of the Suez Canal. Why? How did European lead to the Boer War? How did the French system of colonial rule differ from that of Great Britain? Why were many ...
February 8, 2011

English
Thank you for your help.
February 7, 2011

English
it means anger, and hatred. hatred for the cat?
February 7, 2011

English
Need help with symbolism project. thank you for your help.? I need help with explaining symbolism of the axe from Black Cat. Do you know what symbolism mean is? THANK YOU FOR YOUR HELP am i right? Did the narrator kill his wife's brain with a axe? what is the symbol of the...
February 7, 2011

Maths
Two polygons have te number of their sides in the ratio 1:3.The sums of their interior angles are in the ratio of 4;1. Find the number of sides of each polygon.
February 7, 2011

English
Need help with symbolism project. thank you for your help.? I need help with explaining symbolism of the ax from black cat. Do you know what symbolism mean is? THANK YOU FOR YOUR HELP example: etc
February 6, 2011

literature
The narrator killed his wife in her brain with the axe? am i right?
February 6, 2011

literature
please answer the question. i need help.
February 6, 2011

literature
killed Pluto? i dont know the ax symbolizes. You need to explain what ax symbolizes from The Black Cat.
February 6, 2011

literature
Need help with symbolism project. thank you for your help.? I need help with explaining symbolism of the ax from Black Cat. Do you know what symbolism mean is? THANK YOU FOR YOUR HELP
February 6, 2011

chemistry
what mass of magnesium is needed to reduce a 500ml sample of oxygen at stp to a 375ml sample? Mg + O2--> MgO + O2
February 3, 2011

science
what is a name given to all of the functional parts that float in cytoplasm??? ( it has to be 10 letters)
January 24, 2011

Science
what is an 11 lettered word that means "a cell without a membrane?
January 24, 2011

math
Hi i forgot what the mode and mean are. Can anyone remind me??
January 22, 2011

Physics
A 210 g air-track glider is attached to a spring. The glider is pushed in 12.0 cm against the spring, then released. A student with a stopwatch finds that 13 oscillations take 16.0 s. Find the spring constant k.
January 21, 2011

science
Thank you Ms.Sue!
January 20, 2011

science
What is the definition of "Organ System"?
January 20, 2011

algebra
Please help! How do I solve this problem? 4 - 4 __ __ x+2 x _________ = 1 2
January 18, 2011

Math
well my father made me do that and he was WRONG!!
January 12, 2011

Math
Look I'm in 5th grade and I need to find out what the square route of 1,684,392! please help me!
January 12, 2011

ap chemistry
pentane is burned completely in oxygen gas. what is the balanced equation?
January 2, 2011

ap chemistry
a potassium hydroxide solution is titrated with a solution of perchloric acid. what is the balanced equation?
December 31, 2010

Christmas
thank you!
December 15, 2010

Christmas
Where can I find accurate information on Christmas?
December 15, 2010

Writing
I will write about christmas
December 15, 2010

Writing
i just wanted to write something
December 15, 2010

Writing
What can I write about? (holidays, History people,etc.)
December 15, 2010

English
yes it is only "made"
December 15, 2010

math fractions
turn them into decimals
December 15, 2010

Social Studies
Heyy!! I have to do posters on A Lincoln any ideas?
December 14, 2010

math 3rd grade
5.10.15.20.25.30.... while... 10,20,30........... so Each 10 has two 5's.
December 14, 2010

Poem Contset!!
thanks and sorry i spelled it wrong.
December 8, 2010

Poem Contset!!
There is a poem "contest" at my school and If I write a poem that's good it may go in a book! The only problem is I can't really write a GOOD poem. Can anyone post a site that may help Me? THanks, ErIn
December 8, 2010

chemistry
how many mL of 1M HC2H3O2 are required to neutralize a spill of 25mL of 6M NaOH?
December 7, 2010

Math Help please!!
how do you do these problems?? 5-26 2-2/9 8-2/3 4/3+6 But I can do these types pf problems ( don't need help with problems below) 3/4 + 1/10 and 5/6 - 1/4 Please Help!! Thanks!!!
December 2, 2010

Math
ooppps i said it wrong!!!it's 5 - 2/6 sorry !
December 2, 2010

Math
how do you do these problems?? 5-26 2-2/9 8-2/3 4/3+6 But I can do these types pf problems ( don't need help with problems below) 3/4 + 1/10 and 5/6 - 1/4 Please Help!! Thanks!!!
December 2, 2010

math
(# = a tile) 1: #### #### 2: ## ## ## 3: ## ## ## ##
December 2, 2010

2nd grade
tens:1 Ones:2
November 29, 2010

Grammar/English
there is a period after Holly i really can't see it either.... Thanks for the help!!
November 29, 2010

Grammar/English
It's 2 different sentences right???
November 29, 2010

Grammar/English
i know how to do it i just need it checked "The street was blocked of." said Holly, "How do you see it?" do I have a How or a how???
November 29, 2010

Grammar/English
Please correct this sentence, the street was blocked off said Holly how did you see it Thanks!!
November 29, 2010

Physics
A 1.6kg box that is sliding on a frictionless surface with a speed of 11m/s approaches a horizontal spring. The spring has a spring constant of 2000 N/m. a. How far will the spring be compressed in stopping the box? b. How far will the spring be compressed when the box's ...
November 26, 2010

physics
An RC car has a power rating of 12 W and a mass of 1.0 kg. How long would it take to reach 5 m/s ? thanks.
November 24, 2010

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