Answer:
A
Step-by-step explanation:
The triangle shown has all 3 sides equal in length, hence it is an equilateral triangle.
A property of equilateral triangles is the angles are congruent.
The sum of the 3 angles = 180°, hence the measure of each angle is
= 60° → A
For a function to have a derivative in a point has to be continuous at the point, that is, it has to be defined at that point, other wise the derivative would be meaningless.
<em>Answer:</em>
<em>x = 6</em>
<em>Step-by-step explanation:</em>
<em>2 + 7x = 5x + 14</em>
<em>7x - 5x = 14 - 2</em>
<em>2x = 12</em>
<em>x = 12 : 2</em>
<em>x = 6</em>
<em>Good luck !</em>
