small leg of a right triangle is 3 inches and hypot is 7 inches. how long is the length of the other leg? give exact and approximation.

Question

anonymous · Answer

do I use the a^2 + b^2 = c^2 formula

anonymous · Answer

$$a^2+b^2=c^2$$
a=3 inches
c=7 inches
b=?

Plug them in and solve for b. b is the other leg

anonymous · Answer

yup you are correct.

anonymous · Answer

remember that c is always the hypotenuse

anonymous · Answer

what is the difference between the exact and approx?

anonymous · Answer

so I get b=2√10

anonymous · Answer

Yes that is the exact answer

anonymous · Answer

if you try to get the approximate you would plug $$\sqrt{10}$$into a calculator and multiply it to 2

anonymous · Answer

anonymous · Answer

so 6.32 it is asking for 2 decimals.

anonymous · Answer

See where it says decimal approximation?

anonymous · Answer

yup

anonymous · Answer

thank you

anonymous · Answer

np your really good at this.

anonymous · Answer

it has been years......but slowly coming back

anonymous · Answer

you're*

anonymous · Answer

yeah man just keep posting if you have more questions

anonymous · Answer

assume that the vaiable can represent ANY real number √(-4x)^2

anonymous · Answer

can you help with this one?

anonymous · Answer

post a new question....I don't really understand it that well.

anonymous · Answer

see if someone can help you

anonymous · Answer

ok