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OpenStudy (vshiroky):
Still no
jimthompson5910 (jim_thompson5910):
ok I'll keep going
jimthompson5910 (jim_thompson5910):
\[\Large a^2 + 16a^2 = 81\]
\[\Large 17a^2 = 81\]
\[\Large a^2 = \frac{81}{17}\]
\[\Large a = \sqrt{\frac{81}{17}}\]
\[\Large a = \frac{\sqrt{81}}{\sqrt{17}}\]
\[\Large a = \frac{9}{\sqrt{17}}\]
\[\Large a = \frac{9*\sqrt{17}}{\sqrt{17}*\sqrt{17}}\]
\[\Large a = \frac{9*\sqrt{17}}{\sqrt{17*17}}\]
\[\Large a = \frac{9*\sqrt{17}}{\sqrt{17^2}}\]
\[\Large a = \frac{9\sqrt{17}}{17}\]
jimthompson5910 (jim_thompson5910):
if \[\Large a = \frac{9\sqrt{17}}{17}\] then
\[\Large b = 4a\]
\[\Large b = 4*\frac{9\sqrt{17}}{17}\]
\[\Large b = \frac{4*9\sqrt{17}}{17}\]
\[\Large b = \frac{36\sqrt{17}}{17}\]
OpenStudy (vshiroky):
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jimthompson5910 (jim_thompson5910):
get anywhere?
OpenStudy (vshiroky):
No I think I'm just stressed cause I am running out of time
jimthompson5910 (jim_thompson5910):
well you have to check to see if a^2 + b^2 = c^2 is true
jimthompson5910 (jim_thompson5910):
c is always the longest side
jimthompson5910 (jim_thompson5910):
if a^2 + b^2 = c^2 is true, then the triangle is a right triangle
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OpenStudy (vshiroky):
I got 576+49=625
jimthompson5910 (jim_thompson5910):
so is 24^2 + 7^2 = 25^2?
jimthompson5910 (jim_thompson5910):
the left side turns into 625, so we have 625 = 625
OpenStudy (vshiroky):
So not a right angle and 625?
jimthompson5910 (jim_thompson5910):
making 24^2 + 7^2 = 25^2 true
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