Carolina
Most popular questions and responses by Carolina
Math I need help ASAP!
1. which of the following is true of a random sample? a. it is the only way to sample a population. b. each member of the sample is a volunteer. c. it is always the easiest way to sample a population. d. each member of the population has an equal chance of
asked on May 27, 2015 
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?
asked on April 26, 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?
asked on September 16, 2011 
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
asked on October 12, 2009 
math
A square with side length 5.5 mm is increased by a factor of 11. What will be the perimeter of the square after dilation?
asked on July 5, 2019 
Math
A cookie recipe called for a half cup of chocolate chips per 3 dozen cookies. How many cups of chocolate chips should be used for 10 dozen cookies?
asked on September 7, 2016 
Math
4 ^ (3x–1) = 1.5625 × 10 ^(–2)
asked on October 2, 2012 
Chemistry
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.970g 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?
asked on September 13, 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
asked on March 20, 2011 
english
children insulted palmer ans sometimes threw stones at him. Grown men hurled rocks though the windows of his house. Even the local minister _______(e)d palmer, telling the congregation that palmer admired only himself. One day, four men carrying scissors
asked on January 12, 2016 
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?
asked on March 25, 2013 
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 3x1.
asked on May 29, 2011 
3rd grade
hundred chart to subtract 12 from 46
asked on September 15, 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
asked on May 9, 2010 
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)
asked on October 18, 2009 
Calcderivatives
find the der of y= x^(lnx) thanks
asked on October 13, 2009 
math (factoring)
how do i factor: 4q²  9r² ??
asked on February 21, 2009 
math
solve the equation Ig(x+14)Ig(x2)=2Ig5
asked on April 10, 2016 
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
asked on August 24, 2012 
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?
asked on September 13, 2011 
mathematics
if k=log(squareroot9+squareroot5)/log(2), express log(squareroot9squareroot5)/log(squareroot2) in terms of k.
asked on April 2, 2016 
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?
asked on April 26, 2011 
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 ?
asked on October 29, 2009 
math
how do i find dy/dx using implicit rule? (x^2)y +x(y^2)=6
asked on October 21, 2009 
science
what force is keeping an object in the air and what force is bringing it down
asked on April 19, 2009 
social studies!!
What William Penn's and Benjamin Franklin's contribution to the Middle Colonies?
asked on April 7, 2009 
algebra
how do you work this problem ???? . . . X+(9)=5
asked on August 28, 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.
asked on August 23, 2005 
math
i)use the substitution u=2^y to express the equation 3(2^y1)=2^y+4 as a linear equation of u ii)hence solve the equation 3(2^y1)=2^y+4
asked on March 22, 2016 
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
asked on September 14, 2010 
health
what is a sentence with the word nutrition
asked on November 11, 2009 
math
the water tank begins full.create a scatter plot to represent the amount of water in the tank over a 24hours period
asked on August 11, 2009 
algebra
how do you simplify this with a positive exponent: p^8/p^5
asked on April 27, 2015 
Chemistry
How Many molecules Of sodium are contained in 2 L Of sodium dichromate? The density Of sodium dichromate is 3.7 g/ml
asked on May 14, 2013 
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
asked on October 26, 2009 
Math
compare to 1/2 to tell which fraction is greater 8/17 , 13/23
asked on September 3, 2009 
science! help
What are some ways that energy from the sun is being used in a community??? Please Help
asked on May 25, 2009 
5th grade science
What are some ways that energy from the sun is being used in a community!! Please Help
asked on May 25, 2009 
social studies!!
Why was a milliner important to the village?
asked on May 10, 2009 
social studies!!
What tools did a milliner use? I have needles, iron, thread, fabric, thimble, and scissors!
asked on May 10, 2009 
science
I have a science fair project and i was wondering what is a good green plant to use that grows quickly?
asked on April 19, 2009 
social studies!!
I need a sentence using two of these three words!! proprietor, representative, and treaty!! HELP!!
asked on 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!!
asked on April 7, 2009 
science
how dose oceanography effect the planet earth
asked on September 6, 2008

Geometry
How will the area of the circle change if it is dilated by a scale factor of mc0041.jpg?
posted on July 5, 2019 
Chemistry
2141.37
posted on February 13, 2017 
Chemistry
While in Europe, if you drive 123 per day, how much money would you spend on gas in one week if gas costs 1.10 per liter and your car's gas mileage is 23.0 ? Assume that .
posted on February 13, 2017 
4th grade
susie has 3 quarts of milk how many oints does she have
posted on May 12, 2016 
Maths
A=4πr^2=4·π·100^2≈1.25664×10^5 V=4/3π r ^3=4/3·π·100^3≈4.18879×10^6
posted on November 17, 2015 
Barrles
The value of c could be 5 or any number greater than 5. The solution is the intersection of both solution sets of the given inequalities. The solutions of the compound inequality must be solutions of both inequalities. A number cannot be both less than 5
posted on November 17, 2015 
Math I need help ASAP!
1. d
posted on May 27, 2015 
Math I need help ASAP!
2. false 3. b.
posted on May 27, 2015 
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
posted on October 10, 2013 
Algebra
The area of a triangle is 22 , with a base of 8 yards. What is the height, in yards?
posted on June 26, 2013 
MATH
459+20x=559 5 hours
posted on May 3, 2012 
HealthCare
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
posted on November 2, 2010 
algebra
x*84=12*91 x*84=1092 x=1092/84 x=13
posted on September 16, 2010 
math
explain how you can use a hundred chart to subtract 12 from 46
posted on September 15, 2010 
3rd grade
writing in math explain how you can use a hundred chart to subtract 12 from 46
posted on September 15, 2010 
English
thanks :)
posted on September 14, 2010 
English
thank you :) What are the main differences among lifestyles?
posted on September 14, 2010 
English
i don't know that is traditional and modern lifestyles.
posted on September 14, 2010 
chem
He's right. When you reduce H2O2 in basic solutions you have to add OH to balance the equation.
posted on May 14, 2010 
urgent math
write an integer for a profit of $12.00
posted on January 27, 2010 
health
thank you
posted on November 11, 2009 
Calcderivatives
did u get e^(lnx) / x^2 ??
posted on October 13, 2009 
Calcderivatives
ummm.. i don't understand your language! can you explain that in baby terms? thanks!
posted on October 13, 2009 
phyisics
why didyou use these equations Go to the bottom coconut 20=Vi*t1/2 g t^2 Now go to the top coconut 20=401/2 g t^2
posted on October 12, 2009 
phyisics
and what do you mean by top and bottom? thanks
posted on October 12, 2009 
phyisics
waht is g?
posted on October 12, 2009 
science! help
i know but i need more ideas!!
posted on May 25, 2009 
social studies!!
thanx!!
posted on May 10, 2009 
social studies!!
THANX!! SOCIAL STUDIES IS CONFUSING SOMETIMES!!
posted on 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!
posted on April 7, 2009 
English!!
thanx!!
posted on April 7, 2009 
HSPA
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 !!!
posted on January 4, 2008 
algebra
yes thanx now i get it
posted on August 28, 2007 
algebra
i still don't get it
posted on August 28, 2007 
algebra
ii still don't get it
posted on August 28, 2007 
algebra
but why does X = 5 +9
posted on August 28, 2007