alberto
Most popular questions and responses by alberto
math
a fire fighter's 36 foot ladder leans against a building. the top of the ladder touches the buliding 28 ft above the ground. what is the measure of the angle of the ladder forms with the ground?
asked on May 3, 2011 
English
In my brother's keeper by Jay ... What is the conflict?
asked on May 7, 2016 
math
Jill is 20 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 1.5 kilometers per hour. They meet in 5 hours. How fast is Joe walking?
asked on May 3, 2012 
Math
Rina saves $4.50 each week. Her sister save $2 more each week. When her sister has saved $14 more than Rina, how much has Rina saved?
asked on August 27, 2014 
Biochemistry
You are asked to make 50 mM TrisHCl pH 7.5. The pK of Tris is 8.1. What is the concentration of the components (Tris and TrisH+) in the final buffer solution?
asked on July 3, 2017 
math
Sandy is 5.3 feet tall. How many centimeters tall is she? Round your answer to the nearest tenth.
asked on June 26, 2012 
Algebra
A rectangular piece of cardboard is 15 inches longer than it is wide. If 5 inches are cut from each corner, and the remaining fold up to form a box,the volume of the box is 1250 cubic inches. Find the dimensions of the piece of cardboard.
asked on May 12, 2014 
Biochemistry
You are asked to prepare 2 L of 50 mM sodium phosphate pH 7.0. The pK2 of phosphate is 6.8. What are the amounts of sodium phosphate mono basic monohydrate (NaH2PO4 • 1H2O, MW=137.99 Da) and anhydrous sodium phosphate dibasic (Na2HPO4, MW=141.96 Da) that
asked on July 3, 2017 
math
a gear on a bicycle has the shape of a circle one gear has a diameter of 4 inches and a small one has a diameter of 2 inches Justin says that the circumferences of the larger gear is 2 inches more than the circumferences of the smaller gear do you agree
asked on January 22, 2015 
en forma estandar
como se escribe 423,090,709,000 en forma estandar
asked on September 14, 2010 
programming techniques
how do modular program work, can you show me an example of it using dowhile pseudo code.
asked on July 11, 2008 
math (story problems)
Andy took a reading test. He read 97 words per minute. If a book has an average of 250 words on a page, how many pages can Andy read in one hour?
asked on June 26, 2012 
chemistry
Calculate the volume of HNO3 that must be introduced in the calorimeter,knowing that it were used 60 ml NaOH, Cc=100cal/grd and delta H=13,5 kcal/mol.. please help me,i have no clue for this..
asked on November 7, 2016 
Physics
An astronaut has crash landed on a planet that little is known about (not even the acceleration due to gravity). She must descend a steeo cliff to find shelter, but wants to know how high the cliff is before making the attempts. She happens to have
asked on October 3, 2011 
science
What is the effect of the type of alcohol (methanol, ethanol and pentanol) on the evaporation time?
asked on September 12, 2011 
Math
I am less than 100, the sum of my digits is 8. If you divide me by 2, I am an even number. My tens digit and my ones digit are the same. What is the answer
asked on November 15, 2010 
ENGLISH
WHAT TYPE OF INTRODUCTION AND WHAT TYPE OF CONCULUSION CAN I USE TO WRITE IN MY RESEARCH PAPER? HOW DOES THE INTRODUCTION DRAW READERS INTO MY ARGUMENT, AND HOW DOES THE CONCLUSION NEATLY TIE UP MY PAPER? MY THESIS IS JUVENILE SEX OFFENDERS
asked on May 5, 2009 
Biochemistry
How do you calculate the pI of a protein?
asked on September 1, 2017 
Biochemistry
Why is it important to know the pI of a protein that you are working with?
asked on September 1, 2017 
economics
main characteristics of the market system
asked on September 9, 2012 
chemistry
Hypothesis on "behavior of solids on warming".
asked on September 12, 2011 
math
cx+7 if x2 determine any values of c which make f continuous for all real numbers (c=6) determine any values of c which make f differentiable for all real numbers ???
asked on January 24, 2011 
writing
if this is a subject verb agreement Did you know a famous animal rights activist has criticized horseracing because of the danger involved? and why
asked on March 26, 2009 
pseudocode programming
need help to write a sumsquare function module and then rewrite that !@#$%^&tion module into an algorithm from this pseudocode. count integer square integer sumsquare integer count = 0 square = 1 do while count
asked on August 9, 2008 
algorithm
can someone tell me if this is correct. Write an algorithm that will display the sum for a given number of squares. In other words if the user enters the value 5, then the output should be 1^2 + 2^2 + 3^2 +4^2 + 5^2 = 55. sumsquare integer square integer
asked on July 17, 2008 
progra
how would i be able to write a function module for average from this pseudocode and then use it to write an algorithm. Sum integer Num integer Count integer Count:= 0 Sum:=0 Dowhile count
asked on July 14, 2008

fractions
Respect the vets!
posted on March 7, 2019 
chemistry
Highest = NaF Medium = CH3I Lowest = CH4
posted on April 24, 2013 
math
161.5 centimeters tall (thank you)
posted on June 27, 2012 
math (story problems)
23.28 pages per hour
posted on June 27, 2012 
physics
there is absolutely no way its that complicated. and at points it looks like you made up some values. be more clear.
posted on January 28, 2011