Take -4 + 3a 2 from 7a - a 2.

Mathematics

1 answer:

Ganezh [65]3 years ago

3 0

Answer:

bueno...

Step-by-step explanation:

tu podrias multiplicar -4 x -1 para que te de 4 y asi tu sumas 4 + 3a que te da 7a y el 2 que eso te da 7a +2

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Which transformation(s) can be used to map one

kirill115 [55]

The transformation(s) that can be used to map one triangle onto the other is : (C). dilation, then translation

<h3>Meaning of dilation and translation</h3>

Dilation can be defined as the process of compressing and reducing a shape to a particular scale

Translation can be defined as a process of transferring a shape from one point to another.

In conclusion, The transformation(s) that can be used to map one triangle onto the other is : (C). dilation, then translation

Learn more about dilation and translation: brainly.com/question/21369817

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4 0

2 years ago

Find the general solution of <img src="https://tex.z-dn.net/?f=2cos%282x%20%2B%20%5Cfrac%7B%5Cpi%20%7D%7B4%7D%20%29%20%3D%20%5Cs

Aleks04 [339]

Answer:

$\large\boxed{x=-\dfrac{\pi}{4}+k\pi\ \text{or}\ x=k\pi\ \text{for}\ k\in\mathbb{Z}}$

Step-by-step explanation:

$2\cos\left(2x+\dfrac{\pi}{4}\right)=\sqrt2\qquad\text{divide both sides by 2}\\\\\cos\left(2x+\dfrac{\pi}{4}\right)=\dfrac{\sqrt2}{2}\to2x+\dfrac{\pi}{4}=\pm\dfrac{\pi}{4}+2k\pi\\\\2x+\dfrac{\pi}{4}=-\dfrac{\pi}{4}+2k\pi\ \vee\ 2x+\dfrac{\pi}{4}=\dfrac{\pi}{4}+2k\pi\qquad\text{subtract}\ \dfrac{\pi}{4}\ \text{from all sides}\\\\2x=-\dfrac{2\pi}{4}+2k\pi\ \vee\ 2x=2k\pi\qquad\text{divide all sides by 2}\\\\x=-\dfrac{\pi}{4}+k\pi\ \vee\ x=k\pi\ \text{for}\ k\in\mathbb{Z}$