Answer:
The lengths of the three sides are 10 cm, 9.49 cm and 3.16 cm
Step-by-step explanation:
Let
c ------> the length of the hypotenuse of a right triangle
x -----> the length of one leg
y -----> the length of the other leg
we know that
-----> equation A (Pythagoras Theorem)
----> equation B
-----> equation C
Substitute equation B and equation C in equation A and solve for y





Find the value of x
therefore
The lengths of the three sides are 10 cm, 9.49 cm and 3.16 cm
Hi there! The answer is y = -2

First we collect terms.

Now we add 3 to both sides of the equation.

Finally we divide both sides by 11.

Hence, the answer is y = - 2
When the number is odd and a multiple of 3, the number that Ethan is thinking of is -9.
<h3>How to illustrate the number?</h3>
In mathematics, a multiple is the product of any quantity and an integer. It should be noted that, for the quantities a and b, it can be said that b is a multiple of a if b = na for some integer n, which is called the multiplier. If a is not zero, this is equivalent to saying that b/a is an integer.
In this case, Ethan is thinking of a negative number that is lower than -4 and higher than -10 and his number is odd and a multiple of 3. The number is -9 since 9 is a multiple of 3.
Learn more about multiples on:
brainly.com/question/26856218
#SPJ1
The perimeter is 41.7
Find the length of each side using the distance formula:

Adding the side lengths, we have
14+7.8+19.9=41.7