**Answer:**

y = 2x - 7

**Step-by-step explanation:**

Parallel lines have the same slope so only the y-intercept is different. Therefore nothing is changed between the two equations except the y-intercept is -7.

<h2>

**Explanation:**</h2><h2 />

No figure has been provided so I'll assume an **equilateral triangle **as indicated in the figure below.** **Remember that this type of triangles are those whose sides have the same length. So some facts of ΔABC are:

**1. Angles measure the same:**

The angles measures the same as:

** **

**2. Sides measure the same:**

All sides measure the same, so:

**3. The height measures:**

By <em>Pythagorean Theorem</em>:

**Answer:**

Slope = 1

**Step-by-step explanation:**

(x1, y1) = (-5, -3)

(x2, y2) = (-1, 1)

(y2 - y1) / (x2 - x1) = (1 - -3) / (-1 - -5) = 4 / 4 = 1

**Slope = 1**

**Answer:**

10308375

**Step-by-step explanation: can i have brainlist please**

So the question if find y'' for 4y=cos2x

First, find y by dividing by 4. y = cos2x/4

Then, take the first derivative. y' = -sin2x/2

Then, take the second dervative. y'' = -cos2x