TutorTeddy.com, Tutoring, Dallas, TX
Like us for free help*

Welcome to TutorTeddy.com

Ask any Statistics/Probability/Math Question

A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.

tutordj : How May I help You?
student : I am having trouble with precalculus
tutordj : ques please
student : A right triangle has hypotenuse 10 and base x. Express the area of the triangle as a function of x. What value of x will maximize the area of the triangle?
tutordj : Ok
tutordj : Please wait. Let me solve this
tutordj : We know that the area of a right triangle , A is given by 1/2 * base * height
tutordj : Here base=x
tutordj : hypotenuse =10
tutordj : So, height =sqrt (10^2-x^2)
tutordj : So, area A=1/2*x*sqrt (10^2-x^2) =x/2*sqrt (10^2-x^2)
student : so the area as a function of x would be x/2*sqrt(100-xsquared) ?
tutordj : yes
student : ok, what value of x will maximize the area of the triangle?
tutordj : value of A will be maximum when x=0
student : how do you figure that out?
tutordj : but this is not possible
tutordj : So, when x=1
tutordj : when x=1, sqrt(100-xsquared) this value will be maximum
tutordj : So the area
tutordj : Did you follow me?
student : No, I don't understand how you got the maximum to be 1
student : Is it because 1 is the least amount you can take away from the x values?
tutordj : sqrt(100-xsquared) this value will be maximum for x=1 than any other values of x
student : ok, i get this problem now. thanks. can you help me with another one?
tutordj : Please note, due to lack of resources, we can only do 1 problem FREE in 24 hours period. You can always come back tomorrow for another free problem. Please, tell your friends about our free service - 1 free in 24 hours
tutordj : for the next you have to pay
tutordj : Get 1 homework problem done for 99 cents only.
tutordj : How May I help You?

TutorTeddy.com & Boston Predictive Analytics

[ Email your Statistics or Math problems to tutor@aafter.com (camera phone photos are OK) ]

Boston Office (Near MIT/Kendall 'T'):
Cambridge Innovation Center,
One Broadway, 14th Floor,
Cambridge, MA 02142,
Phone: 617-395-8864

Dallas Office (Near Galleria):
15950 Dallas Parkway,
Suite 400,
Dallas, TX 75248,
Phone: 866-930-6363

Copyright 2011 tutorteddy.com. All Rights Reserved. | By using our site, you agree to our TOS.