ANSWER
Explicit formula:

Recursive

EXPLANATION
The first term of the sequence is

The common difference is


The nth term is given by the formula,



The explicit formula is;

The recursive definition is

Answer: c
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given a triangle with angles 60° and 60°. Let the third angle be represented by x, so that;
x + 60° + 60° =
(sum of angle in a triangle)
x + 120 = 
x =
- 120
x = 60°
Thus, since the third angle of the triangle is 60°, then the triangle is an equilateral triangle. For an equilateral triangle, all sides are equal and all its angles are equal. So that the other sides of the triangle is 10 each.
<ABC ≅ <BAC ≅ < ACB ≅ 60°
AB = BC = AC = 10 cm
The required construction for the question is attached to this answer for more clarifications.
Step by ... 8*x^2+7*x-15-(-7)=0 ... 3.2<span>Solving 8x2</span>+7x<span>-8 = 0 by Completing The Square .</span>
The first one is -4 and the second one is 6.