SOLUTION: Find the value of x. If necessary, round to the nearest tenth <a href="http://www.woopics.com" target="_blank"><img alt="Image Hosted by WoO Pics" src="http://www.woopics.com/up

Question 293032: Find the value of x. If necessary, round to the nearest tenth

This is the way I'm thinking to solve it.
sqrt(28) = 5.2915
Rounded 5.3
5.3*5.3 = 28.09...rounded to 28.
Is that how I would solve it?
Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
Yes, you got the right idea but missed an important value. Let's do step by step so it's clear.
We know the area of a triangle is 1/2(base x height) so we can plug in the values known as:
28=x(x)(1/2) Or rewritten as:
28=x^2/2 Multiply each side by 2 to get:
56=x^2 Square root each side to get:
x=sqrt 56 Or
x=7.48 inches (rounded off)
RJ
Check out a book I wrote on the basics of math at:
www.math-unlock.com
RELATED QUESTIONS
Find the value of x. If necessary, round to the nearest tenth. (answered by Fombitz)
Find the value of "x", round your answer to the nearest tenth. (answered by checkley77)
Solve the problem. Round your answer to the nearest tenth, if necessary. (answered by cowess,JoelSchwartz)
Solve the problem, if possible. Round your answer to the nearest tenth, when... (answered by checkley71)
Solve the problem, if possible. Round your answer to the nearest tenth, when... (answered by checkley71)
Find the value of x. (answered by scott8148)
Perform the indicated operation and expression lowest terms. Thanks for any help. (answered by CubeyThePenguin)
Perform the indicated operation and expression lowest terms. (answered by CubeyThePenguin)