amie
Most popular questions and responses by amie
Physics
A person who is properly constrained by an overtheshoulder seat belt has a good chance of surviving a car collision if the deceleration does not exceed about 30 "'s". Assuming uniform deceleration of this value, calculate the distance over which the
asked on September 24, 2012 
Physics
A stone is dropped from the roof of a high building. A second stone is dropped 1.51 later. How far apart are the stones when the second one has reached a speed of 12.6 ?
asked on September 24, 2012 
simple chem
a balloon with a volume of 1.375 L is released from earths surface at sea level. what will the balloon occuy at an altitude of 20.0km, where the pressure is 10 kpa? pleasee help!! show work please
asked on June 3, 2008 
chem
In the equation: 2Al+6HCl>2AlCl3+3H2 Why is the hydrogen by itself instead of the chlorine? Al is above hydrogen in the activity series (sometimes called the electromotive force series); therefore, it replaces H. This is single replacement type reaction.
asked on March 18, 2007 
elementary alagbra
A pharmacist found at the end of the day she had seven fourths 7/4 as many prescriptions for antibiotics as tranquilizers. She had 44 prescriptions altogether. How many did she have for tranquilizers?
asked on September 27, 2016 
Algebra
A baseball player's batting average is the number of hits the player has divided by the number of atbats. At the beginning of a game, a player has a batting average of .360. During the game, the player gets 3 hits during 5 atbats, and his batting average
asked on January 16, 2013 
Math
Worldwide quarterly sales of a brand of cell phones was approximately q = −p + 176 million phones when the wholesale price was $p. (a) If the cellphone company was prepared to supply q = 9p − 344 million phones per quarter at a wholesale price of $p,
asked on February 11, 2012 
Precalc HW (NO IDEA HOW TO SOLVE)
Low Earth orbiting satellites orbit between 200 and 500 miles above Earth. In order to keep the satellites at a constant distance from Earth, they must maintain a speed of 17,000 miles per hour. Assume Earth's radius is 3960 miles. a. Find the angular
asked on November 19, 2007 
english
An effective speech delivery has all of the following qualities EXCEPT: A. speaker delivers message with impact. B. it is a result of the speaker’s natural talent and gift. C. influences audience to act or think favorably toward message. D. meets
asked on June 2, 2016 
Math
Find a linear equation whose graph is the straight line with the given property. Through (5, 9) with slope 2 I can't find the correct answer. I don't know where I did wrong Thanks.
asked on February 15, 2012 
chem
use boyles law to solve for the missing value in the following P1=0.75atm,V2=435ml,P2=0.48atm, V1=?
asked on June 3, 2008 
chemistry
In the reaction ZnO+2HCl=ZnCl2+H2O what is oxidized and what is reduced?
asked on April 1, 2014 
Mathematics
Low Earth orbiting satellites orbit between 200 and 500 miles above Earth. In order to keep the satellites at a constant distance from Earth, they must maintain a speed of 17,000 miles per hour. Assume Earth's radius is 3960 miles. a. Find the angular
asked on November 19, 2007 
physics
What is the force constant of a spring which is stretched 2mm by a force of 4N
asked on November 15, 2016 
Math
Assume it costs Microsoft $4,300 to manufacture 7 Xbox 360s and $8,290 to manufacture 14. Obtain the corresponding linear cost function. C(x)= (what formula do I use to get the cost function, because I can't get it) What was the cost to manufacture each
asked on February 19, 2012 
Biology
If a curly haired father and straight haired mother 8 children are born .the ratio of curly and straight haired will be ......
asked on September 30, 2016 
math 116
find an equivalent equation with the given denominator 7/b= ?/b squared the expression that is equivalent to 7/b is ? if b is squared wouldn't the 7 also have to be squared to be equivalent? 7/b = 49/b squared? Am I correct? Thanks
asked on November 20, 2009 
physical science
A 200.0 kg astronaut and equipment move with a velocity of 2.00 m/s toward an orbiting spacecraft. How long will the astronaut need to fire a 100.0 N rocket backpack to stop the motion relative to the spacecraft? 100*timefiring= mass*changevelocity
asked on August 30, 2006 
Science
A fossil for an extinct organism is found in layer B. A fossil for another extinct organism, very similar to the first, is found in layer C. What might be the relationship between these two organisms. Im so confused, can someone help.
asked on April 9, 2016 
Math Help Please!
My investment in Edgewater stocks is losing half its value every 2 years. Find and interpret the associated decay rate. If I use the formula y=100(1/2)^x (
asked on February 29, 2012 
chem
convert a pressure 1.75atm to kpa convert the pressure of 1.75atm to mm Hg convert a pressure of 570 torr to atmospheres
asked on May 31, 2008 
Math
How should I approach this, what formula do I use to solve and how do I solve it? How long, to the nearest year, will it take me to become a millionaire if I invest $3000 at 9% interest compounded continuously? Thanks
asked on February 29, 2012 
algebra
5x 3 = 11 + 12x combine like figures add 3 to both sides to remove the 3 5x= 14+ 12x Now I get confused. If I remove the 12x I have to subtract 12x from 5x which gives me an answer of 7x=14 would the correct answer thus be x= 2? thanks
asked on November 20, 2009 
Algebra
A gardener combines x fluid ounces of a 20% liquid fertilizer and 80% water mix with y fluid ounces of a 5% liquid fertilizer and 95% water mix to make 30 fluid ounces of a 10% liquid fertilizer and 90% water mix. a. Write a system of linear equations that
asked on January 16, 2013 
Analytical Chemistry
Hi. We performed an experiment on UVVis Spectrometry, by testing the absorbance of KMnO4 and KCr2O7 solutions at different concentrations. We prepared the dichromate solutions with dilute sulfuric acid. Why didn't we use water, what is the purpose of
asked on April 15, 2011 
Physics
Two trucks, 300 km apart, are on a headon collision course with one another. The first truck is moving at 100 m/s and the other is moving at 50 m/s in the opposite direction. A confused (but swift) fly starts from the front bumper of the faster truck and
asked on September 26, 2010 
chem
a gas volume has of v1=450ml. if the temp is held constant, what volume would gas occupy if the pressure p2=2p1? omg i cant figure anything out!!!!!!!!
asked on June 4, 2008 
spanish translation
please don't use any web translaters..most don't say th right things how would you say: my name is amethyst. i was born in ghana and came to america when i was 2 years old. i am short with dark skin and dark hair. I used to live in fontana but now i live
asked on May 31, 2008 
algebra
alberto drove to the lake and back. the trip there took two hours and the trip back took three hours. he averaged 20 km/h faster on the trip there than on the return trip. What was alberto's average speed on the outbound trip?
asked on September 29, 2016 
Geometry
The volume of a sphere is 3,000ð m3. What is the surface area of the sphere to the nearest square meter?
asked on October 2, 2014 
english 9
in the poem "the journey" by mary oliver,what is the "you" do in this poem?
asked on February 1, 2012 
english
I need a thesis statement of 450 words for why renting a house is a better option than buying a homr
asked on May 29, 2011 
vocabulary
which word is not an example of blending? a)housewife b)brunch c)telethon d)electrocute
asked on April 4, 2011 
vocabulary
select the best synonym of the word satiate. a)empty b)fill c)deny d)deprive............please help.
asked on April 4, 2011 
physics
A car starting from rest and moving with variable acceleration possess average velocities 5m/sec, 10m/sec, 15m/sec in the first seconf and third seconds. What is the total distance covered by the car in these three seconds?
asked on July 10, 2011 
chemistry
We performed an experiment on UVVis Spectrometry, by testing the absorbance of KMnO4 and KCr2O7 solutions at different concentrations. We prepared the dichromate solutions with dilute sulfuric acid. Why didn't we use water, what is the purpose of sulfuric
asked on April 17, 2011 
vocabulary
the latin base CORD means: a)hand b)eye c)heart d)head thank you so much for helping.
asked on April 4, 2011 
algebra
add the following  4/7 + [ 7/20] 7*20= 140 so 60/140 +  49/140= 11/140?
asked on November 20, 2009 
help
how do legalism and daoism differ/
asked on May 20, 2011 
Finance
If sales grew 20% from 10,000,000 to 12,000,000 and the discresinary financing needs is 500,000. What percent of sales grown would be needed to equal a DFN of zero.
asked on March 31, 2010 
chem
okay so i have the answers but i just wanted to see if i was correct Balance these equations..i need the correct answers 1.H2+CL2>HCL 2.Ag+2n>Zn2+Ag 3.Mn4+Cu+>Mn2+ +Cu2+
asked on June 10, 2008 
Math  function problems
1) A box with a square base has a total surface area of 12m^2. Express the volume of the box as a function of the base edge. 2) A 10 foot tall lamppost causes a child 4 feet tall to cast a shadow of x feet on the ground. If the distance along the ground
asked on September 13, 2010 
algebra
3/0 =? the answer is 0 but my options are to solve the equation if possible or say the answer is undefined. Is 0 undefined? I have no clue what an undefined answer is
asked on November 20, 2009 
SAT
im taking the Sat's tomorow..what are some great tips??
asked on June 6, 2008 
simple chem
what are the highly reactive elements the ones that react with electricity, noble gasses and the less reactive elements
asked on May 31, 2008 
chem
how do you solve for the combined gas law?..i ..I am very confused ..someone help by making it easier and clear since i am kinda slow.. ex.a sample of neon gas has a volume of 752ml at 25.0C. what will the volume at 50.0C be if pressure is constant
asked on May 29, 2008 
chem
For a double replacement reaction to occur, is it that one of the products must be insoluble and form a solid? There has to be some mechanism to remove the products from the reaction so that the reaction does not proceed in the reverse direction. Product
asked on March 19, 2007 
MATH
Reiny (Previous problem) better form would be to place the equal sign in front of each new line You also have errors 3(x + 3) 2(x + 4) = 3x  9  2x  8 = 3x  2x  9  8 = 5x  17 So 3 x 3 made 9. how did the 2 become negative, I thought it was a
asked on September 4, 2015 
PreCalculus
How do you solve this quadratic function? f(x) = −x2 + 10x
asked on October 4, 2011 
Calculus
I need to find the second derivative of y=x(x1)^1/2. I found the first derivative is 2x1/2(x1)^1/2, if someone could check, but I am miserably stuck on the second derivative.
asked on April 18, 2011 
calculus
Write an equation of the line tangent to y=(9x^2)^2/3 at x=1
asked on March 12, 2011 
algebra
find an equivalent equation with the given denominator 7/b= ?/bsquared the expression that is equivilent to 7/b is ? if b is squared wouldn't the 7 also have to be squared to be equivilant? 7/b = 49/b squared? Am I correct? Thanks
asked on November 20, 2009 
math
30/5x32  22/3 on the top partdo I divide 30 by 13, or divide 30 by 5 then multiply by 3 and subtract 2?
asked on November 4, 2009 
home economics
Please help me... what are the different kinds of stitch? and can u pls show me the sample picture for eah stitch?
asked on September 21, 2008 
spanish
how would you say I love all types of food, like chinese, hamburgers, italian and african.
asked on May 31, 2008 
Applied Math
can you explain the concept of multiplying this to me please $42.25 X .67. Thank you in advance for the help
asked on December 19, 2017 
MATH
Reiny 22 ¡Ü 6x 2 ¡Ü 4x + 16 22+2¡Ü6x2+2¡Ü4x +16+2 24¡Ü6x4x¡Ü18 24/2 ¡Ü 2x/2 ¡Ü 18/2 12 ¡Ü x ¡Ü 9 I tried using 2 steps  how did I do?
asked on December 10, 2015 
MATH
is this correct? 4(x) + 3 < 3(x) + 5 x + 3  3 < 53 x/x < 2/x x>2
asked on December 10, 2015 
MATH
Trying to solve problem 7x>  2(x  30  2x  30 3030 30/5 x>6
asked on December 10, 2015 
health
what do you teach for 5th grade Health class?
asked on May 14, 2011 
geometry
In rectangle ABCD line EF joins the midpoint of line AB and BC. Line BE equals 5, line BF equals 12, find line EF, line AC and perimeter of the rectangle.
asked on December 15, 2010 
science
wearing down rock by the grounding of other rocks or sand is called
asked on September 29, 2009 
alg
if n+5n+3 over n3n5=16 what is the value of n this is an SAT question and i just cant seem to figure it out..even with pluggin in the numbers it never = 16...so help pls..what is the quickest way in solving this for the SAt's
asked on July 19, 2008 
chem
how do you convert grams to moles
asked on May 29, 2008 
simple chem
how to convert tempetarues.. i forgot . do yo add 273C to get to kelvins or do you subtract...vise versa..??
asked on May 29, 2008 
Physics
A cup of coffee with a mass of 300g is brewed using 9.5 x 10^4 J of energy. What is the mass gain of the cup of coffee from this heating?
asked on April 21, 2008 
MATH
Reiny  the problem with the different inequality signs was typed from the textbook. I will notify instructor Thanks Another problem 3
asked on December 10, 2015 
MATH
3(x + 3) 2(x + 4)= 3x + 9  2x + 8= 3x  2x + 9 + 8= answer x + 17 is this correct
asked on September 3, 2015 
science
wearing down rock by the grounding of other rocks or sand is called?
asked on September 29, 2009 
alg 2
find the foci of the ellipse (x+5)^2/4+(y1)^2/16=1
asked on June 6, 2008 
alg 2
what is the foci of the ellipse (x+5)^2/4+(y1)^2/16=1
asked on June 6, 2008 
MATH
Using the proportion rule to solve this problemis this correct? Enrollment in the Ski/Snowboard Club increased by 30% this year. There are now 182 students in the club. How many students were there last year? 182x100=18200/30=607 607182=425 answer 425
asked on March 31, 2016 
MATH
Am I correct? A suit that normally sells for $300 is on sale for $225. By what percent has the price of the suit been lowered? 300225=75, 75 x 100=7500, 7500/300=25 Answer 25%
asked on March 20, 2016 
MATH
Reiny, the problem with the answer x>2, why divide by 1? Is it because you can't divide with variable? Reworked problem 7x>2(x+15)2(x+15) 7x + 2x > 30 5x/5 > 30/5 x > 6 other side 2(x+15)
asked on December 10, 2015 
english
Please checked my grammar about how I described those quote. THank U in advanced. here is how I describe those quote: * Don't be frightened to be the be best you can. By doing that that, you can helps others to do the same. Our deepest fear is not that we
asked on October 29, 2015 
science
The "I WONDER...." PROJECT FROM SCHOOL.I AM TO COMPLETE THE QUESTION AND THEN RESEARCH THE FINDINGS ON A DISPLAY BOARD AND PRESENT IT TO THE CLASS.MY QUESTION IS CAN PAPER BE MADE FROM SOMETHING OTHER THEN TREES?I NEED SOME SOURCES OTHER THEN THE WEB.ANT
asked on May 24, 2010 
drwlsyear8 geography
thanks for finding that link its helped me with my homework
asked on January 27, 2009 
Year 8 geography
i need to label a picture of a river. the mouth and other parts. does anyone know any good websites that can help me a labelled diagram would be helpful thanks for your help!
asked on January 27, 2009 
alg. 2
what is the foci of the ellipse X2 over 81 + Y2 over 49=1
asked on June 6, 2008

Applied Math
my answer will be 28.31 am I correct?
posted on December 19, 2017 
Applied Math
I cam up with 28.3075 but I still need to round this off to the nearest penny. Can some one help and explain your work so I understand the steps.Thank you in advance
posted on December 19, 2017 
ap chemistry
CH3OH>CH3CH2OH>CH3CH2CH2OH
posted on August 2, 2017 
Science
I go to Connexus. I agree with castiel. It goes both ways all the time.
posted on April 3, 2017 
5th grade
Pounds
posted on August 3, 2016 
english
B?
posted on June 2, 2016 
Math
2688
posted on May 23, 2016 
MATH
Thanks
posted on December 10, 2015 
MATH
This problem is from the textbook, I copied problem directly from it (with different signs) but don't have explanation  only answer given
posted on December 10, 2015 
MATH
so it would look like this 3x  9 2x  8 What happens to the addition sign? Can you show me how?
posted on September 4, 2015 
MATH
so 3 x 3 made 9. how did the 2 become negative, I thought it was a subtraction sign?
posted on September 3, 2015 
Math
I got the wrong answer of 12 years
posted on February 29, 2012 
Math
I got 26, but it was wrong
posted on February 11, 2012 
4th grade
marlena buys seven oranges and five bananas. what is the total cost? show your work.
posted on May 25, 2011 
Math
342y=8 what is the value and look at the equation in the box
posted on April 27, 2011 
Calculus
Thank you so much this definitely helps me double check my work!!
posted on April 18, 2011 
math
p=2.(w+l) p=40 l=2+w 40=2(w+(2=w)divide by 2 20=2w=2 subtract by 2 18=2w divide by 2 l=2+w substitude w for 9 l=11 answer =11
posted on April 4, 2011 
Maths
how to do shell to bells
posted on January 18, 2011 
Math  asymptotes
yes, those are what i meant..sorry about the notation
posted on September 13, 2010 
algebra
Look it up!
posted on April 1, 2010