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Can someone help please

Can someone help please-example-1
User Tomdavies
by
8.1k points

1 Answer

5 votes

Answer:

a=4

Explanation:

Hi there!

We are looking for the value of
a. We know that
b=11 and
c=√(137).

We'll start with the Pythagorean theorem:


a^(2) +b^(2) =c^(2)

Now, we'll subtract
b^(2) from both sides so that
a^(2) is by itself.


a^(2) =c^(2) -b^(2)

We can now substitute our known values of
b and
c into the equation. Make sure to put the substituted values in parenthesis.


a^(2) = (√(137)) ^(2) -(11)^2

Let's apply the exponents to the values we substituted in:


a^2=137-121


a^2=16

Now, to eliminate the exponent on
a, we take the square root of both sides:


a=√(16)


a=4

Let me know if you have any questions!

User DMTintner
by
7.7k points

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