SOLUTION: I'm not sure of exactly how to work this problem and I need some help...Please. The question states: What does it mean to refer to a 20-in TV or a 25-in TV set? Such units r

Algebra ->  Radicals -> SOLUTION: I'm not sure of exactly how to work this problem and I need some help...Please. The question states: What does it mean to refer to a 20-in TV or a 25-in TV set? Such units r      Log On


   



Question 629040: I'm not sure of exactly how to work this problem and I need some help...Please.
The question states:
What does it mean to refer to a 20-in TV or a 25-in TV set? Such units refer to the diagonal of the screen. A 20-in TV set also has a width of 16 inches. What is it's height?
My other question is I need help with these two problems also.
sqrtx^2-8x+16 and the other one is a word problem.
It states: The formula r=2sqrt 5L can be used to approximate the speed of r, in miles per hour, of a car that has left skid marks of length L, in feet. How far will a car skid at 70 mph?

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Two sides and the diagonal of a rectangle form a right triangle. Solve the triangle using Pythagoras. The diagonal is the hypotenuse of the triangle and the width is one of the legs. So:



Just plug in the numbers and do the arithmetic.

John

My calculator said it, I believe it, that settles it
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