Question

Help me please !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Answer:

11.31

Step-by-step explanation:

Use the pythagorean theorem: c^2=a^2+b^2

18^2=14^2+b^2

324=196+b^2

128=b^2

b=11.31

Answer 2

$[Hello,BrainlyUser]$

Answer:

$\sqrt{128}$

Step-by-step explanation:

Right, let write down the Pythagorean Theorem equation or standard form of it. before we plug in the numbers.

$a^2+b^2=c^2$

Right, so that is the equation of Pythagorean Theorem. So let plug in the numbers of b and c.

$a^2+14^2+18^2$

So we have our values of b and c. Now, how do we find the missing number?

Well, let simplify thing further by squaring the numbers we have already.

$a^2+196+324$

We will now subtract 196 from both side which gives us:

$a^2=128$

Now we can square root the answer.

$\sqrt{a^2} =\sqrt{128}$

Now, we are left with this:

$a=\sqrt{128}$

So the final answer is $\sqrt{128}$ or the decimal value which is  [11.31370849]

Round: 11.31

[CloudBreeze]