Wednesday
August 27, 2014

Posts by Carolina


Total # Posts: 64

Chemistry
How Many molecules Of sodium are contained in 2 L Of sodium dichromate? The density Of sodium dichromate is 3.7 g/ml
May 14, 2013

Math
Sarah was cutting fabric for a quilt. She cut a strip of fabric that was inches long into 5 equal pieces. When she was finished cutting, Sarah had a piece that was inches long. How long was each piece that she cut for the quilt
April 21, 2013

CST GEOMETRY
a tree is situated on level ground from a point 135 feet from the base of the tree the measure of the angle of elevation from the ground to the top of the tree is 43 degrees which is the height of the tree to the nearest foot?
March 25, 2013

Algebra
The area of a triangle is 22 , with a base of 8 yards. What is the height, in yards?
January 30, 2013

Math
4 ^ (3x–1) = 1.5625 × 10 ^(–2)
October 2, 2012

algebra
math question: you want to mat and frame a 5x 7 photograph. The perimeter of the outside of the mat is 60 inches. the mat is twice as wide at the top and the bottom as it is on the sides. Find the dimensions of the mat
August 24, 2012

MATH
459+20x=559 5 hours
October 3, 2011

physics
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 3.95 m above. The brother's outstretched hand catches the keys 1.80 s later. (a) With what initial velocity were the keys thrown?
September 16, 2011

Chemistry
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.970-g sample of Mg metal is added to 50.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
September 13, 2011

chemistry
Iron reacts with HCl solution to give H2 gas and Fe2+ ions. Suppose that 5.4 g of iron are to be dissolved in 1.1 M HCl. What is the minimum volume (in mL) of the acid solution required to react with all of the iron?
September 13, 2011

Geometry
Two secants are drawn to a circle from an external point. The external secant length on the first secant is 12 and the internal segment length is 3x +1. The external secant length on the second secant is 15 and the two internal segment length is 3x-1. Solve for (x) to ...
May 29, 2011

Math
Three times as many children as adults attend a concert on Saturday. An adult's ticket cost $7 and a child's ticket cost $3. The theater collected a total of $6,000. How many people bought tickets?
April 26, 2011

Math
Three times as many children as adults attend a concert on Saturday. An adult's ticket cost $7 and a child's ticket cost $3. The theater collected a total of $6,000. How many people bought tickets?
April 26, 2011

mba business reserach methods
Sampling A manufacturing company's quality control personnel have recorded the proportion of defective items for each of 500 monthly shipments of one of the computer components that the company produces. See data below. The company doesn't have time to review all of ...
March 20, 2011

algebra
x*84=12*91 x*84=1092 x=1092/84 x=13
September 16, 2010

3rd grade
hundred chart to subtract 12 from 46
September 15, 2010

math
explain how you can use a hundred chart to subtract 12 from 46
September 15, 2010

English
thanks :)
September 14, 2010

English
thank you :) What are the main differences among lifestyles?
September 14, 2010

English
i don't know that is traditional and modern lifestyles.
September 14, 2010

English
can you help me to answer these questions? What lifestyles (lifestyle is a manner of living that reflects the person's values and attitudes) can people lead? What are the main differences among lifestyles? What do you have in mind when you speak about luxurious, ...
September 14, 2010

3rd grade
writing in math explain how you can use a hundred chart to subtract 12 from 46
September 12, 2010

Chemistry
Write net ionic equations for these reactions : Cu^2+ + Fe -> Hg^2+ + Fe-> Fe^3+ +Fe-> Pb^2+ +Fe-> Ag^+ + Fe-> and then the same but instead of Fe, addition of Cu to the six solution that I wrote before.. What ions are reacting in each case? please help me with ...
May 9, 2010

urgent math
write an integer for a profit of $12.00
January 26, 2010

health
thank you
November 11, 2009

health
what is a sentence with the word nutrition
November 11, 2009

math
can somebody show me how to do this? at what point on the graph of y= 3^x +1 is the tangent line parallel to the line y= 5x -1 ?
October 29, 2009

math
can someone actually show me all the steps to finding this deriviative. I keep doing the problem out and getting the wrong answer. Find the deriviative of: INVERSEsin(2t)^1/2
October 26, 2009

math
how do i find dy/dx using implicit rule? (x^2)y +x(y^2)=6
October 21, 2009

calculus
how do not understand how to find a deriviative of this function?Do i use chain rule and product rule? r= the square root of (theta*sin*theta)
October 18, 2009

Calc--derivatives
did u get e^(lnx) / x^2 ??
October 13, 2009

Calc--derivatives
ummm.. i dont understand your language! can you explain that in baby terms? thanks!
October 13, 2009

Calc--derivatives
find the der of y= x^(lnx) thanks
October 13, 2009

phyisics
why didyou use these equations Go to the bottom coconut 20=Vi*t-1/2 g t^2 Now go to the top coconut 20=40-1/2 g t^2
October 12, 2009

phyisics
and what do you mean by top and bottom? thanks
October 12, 2009

phyisics
waht is g?
October 12, 2009

phyisics
an orangutan throws a coconut vertically upward at the foot of a clif 40 m high while his mate simulaneously drops another coconut from the top of the clif. the two coconuts collide at an altitude of 20 m what is the initial velocity of the coconut that was thrown upward? i ...
October 12, 2009

Health-Care
Some technical terms pass into common usage as knowledge about a field spreads. Think of three such terms that have passed into common usage recently
October 2, 2009

Math
compare to 1/2 to tell which fraction is greater 8/17 , 13/23
September 3, 2009

math
the water tank begins full.create a scatter plot to represent the amount of water in the tank over a 24-hours period
August 11, 2009

science! help
i know but i need more ideas!!
May 25, 2009

science! help
What are some ways that energy from the sun is being used in a community??? Please Help
May 25, 2009

5th grade science
What are some ways that energy from the sun is being used in a community!! Please Help
May 25, 2009

social studies!!
thanx!!
May 10, 2009

social studies!!
Why was a milliner important to the village?
May 10, 2009

social studies!!
What tools did a milliner use? I have needles, iron, thread, fabric, thimble, and scissors!
May 10, 2009

science
what force is keeping an object in the air and what force is bringing it down
April 19, 2009

science
I have a science fair project and i was wondering what is a good green plant to use that grows quickly?
April 19, 2009

social studies!!
THANX!! SOCIAL STUDIES IS CONFUSING SOMETIMES!!
April 7, 2009

social studies!!
What William Penn's and Benjamin Franklin's contribution to the Middle Colonies?
April 7, 2009

social studies!!
thanx!!! but i can't use it since i haven't learned about it!! It has to be about starting the middle colonies new york and new jersey!
April 7, 2009

social studies!!
I need a sentence using two of these three words!! proprietor, representative, and treaty!! HELP!!
April 7, 2009

English!!
thanx!!
April 7, 2009

English!!
I need help!! what is the blank? change: variable:: move:_______ private:public:: major:_______ ancient:old::______:new go:went::_____:rose tree:forest::star:galaxy please reply!!
April 7, 2009

math (factoring)
how do i factor: 4q² - 9r² ??
February 21, 2009

science
how dose oceanography effect the planet earth
September 6, 2008

algebra
yes thanx now i get it
August 28, 2007

algebra
ii still dont get it
August 28, 2007

algebra
i still dont get it
August 28, 2007

algebra
but why does X = -5 +9
August 28, 2007

algebra
how do you work this problem ???? . . . X+(-9)=-5
August 28, 2007

Math help needed here
please i need help in math now i'm in 10 grade but i'm very worry about the hspa i think that won't pass it if i don't have help i'm so confuse !!!
August 22, 2007

chem
He's right. When you reduce H2O2 in basic solutions you have to add OH- to balance the equation.
January 15, 2007

Geometry
how do you find length when you are given perimeter and width? area? the length of what??????? wow You divide the perimeter by the width!Somebody helped me with this question to. in.=4yd.
August 23, 2005

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