Answer
I don't know
Step-by-step explanation:
Answer:
It depends on the size of the fish tank, so this question cannot be properly answered.
First, we are going to add these two vectors.
then
We are going to calculate the argument of the result vector.
<span>u= <4,-1> and v= <3,5>
![u+v=\ \textless \ 4,-1\ \textgreater \ +\ \textless \ 3,5\ \textgreater \ =\ \textless \ 7,4\ \textgreater \](https://tex.z-dn.net/?f=u%2Bv%3D%5C%20%5Ctextless%20%5C%204%2C-1%5C%20%5Ctextgreater%20%5C%20%20%2B%5C%20%5Ctextless%20%5C%203%2C5%5C%20%5Ctextgreater%20%5C%20%3D%5C%20%5Ctextless%20%5C%207%2C4%5C%20%5Ctextgreater%20%5C%20)
![|u+v|=|\ \textless \ 7,4\ \textgreater \ |= \sqrt{7^2+4^2} = \sqrt{65}](https://tex.z-dn.net/?f=%7Cu%2Bv%7C%3D%7C%5C%20%5Ctextless%20%5C%207%2C4%5C%20%5Ctextgreater%20%5C%20%7C%3D%20%5Csqrt%7B7%5E2%2B4%5E2%7D%20%3D%20%5Csqrt%7B65%7D%20)
</span><span>
</span>
<span>>>rounded to the nearest tenth:
![\sqrt{65} =8.1](https://tex.z-dn.net/?f=%20%5Csqrt%7B65%7D%20%3D8.1)
</span>
Answer:
Square
Step-by-step explanation:
Take a look at the attachment below. We need to apply the distance formula to derive the distance between points (0, 3), (3, 0), (0, - 3), (-3, 0). We can right away note that the sides of the quadrilateral created from these points are congruent. How so?
Again, taking a look at the attachment, you will see that this quadrilateral is named. Take side AB as an example. It forms a right triangle with the x and y - intercepts, the legs of lengths 3 and 3 units. AB is the hypotenuse. Respectively sides BC, CD, and AD each are the hypotenuse of their own mini triangle with legs of 3 units each! From this we can conclude that, by Pythagorean Theorem, AB = √18 = BC = CD = AD.
All sides are congruent, so the shape must be a square!
19% of 129.95 is 24.69. Add 129.95 + 24.69 to get your answer