I neeed help with this

Mathematics

2 answers:

noname [10]3 years ago

7 0

Answer:

Definitely point c, because the check means square root of the number. If you look up the square root of 300, then you would get 17.3205080757, in other words point c.

Step-by-step explanation:

Hope this helps!!

Alina [70]3 years ago

3 0

Answer: Point C.
Because √300=17.3205=17.3 :)
I hope this helped!

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Suppose z = . What is z4?<br><br> on EDGE 2020

Free_Kalibri [48]

Answer:

$z^{4} = \cos \frac{8\pi}{3}+i\,\sin \frac{8\pi}{3}$

Step-by-step explanation:

We can determine the power of a complex number by the De Moivre's Theorem, which states that for all $z = r\cdot (\cos \theta + i\,\sin\theta)$ , where $a, b \in \mathbb{R}$ , the power of the complex number is:

$z^{n} = r^{n}\cdot (\cos n\theta + i\,\sin n\theta)$ (1)

Where:

$r$ - Magnitude of the complex number, dimensionless.

$\theta$ - Direction of the complex number.

If we know that $r = 1$ , $n = 4$ and $\theta = \frac{2\pi}{3}$ , then the fourth power of the complex number is:

$z^{4} = 1^{4}\cdot \left[\cos\left(\frac{8\pi}{3} \right)+i\,\sin\left(\frac{8\pi}{3}\right)\right]$

$z^{4} = \cos \frac{8\pi}{3}+i\,\sin \frac{8\pi}{3}$

5 0

3 years ago

Read 2 more answers

Help please.. its quiet easy anyway xd

padilas [110]

Answer:

An equilateral triangle is a triangle in which all three sides are equal. An equilateral triangle is also equiangular, in which all three internal angles are also congruent to each other and are each 60°.

Parallelogram and rhombus possibly.

Trapezoid.