Answer:

Step-by-step explanation:
If a, b and c are the lengths of the triangle's sides, then

Since
then

Thus,

Answer:
Step-by-step explanation:
The choices appear to have been written incorrectly. They should be
7(3)ⁿ⁻¹
3(7)ⁿ⁻¹
3(7)ⁿ⁺¹
common ratio r = a₂/a₁ = 7
nth term = a₁rⁿ⁻¹ = 3(7)ⁿ⁻¹
Answer:
U DIVIDE IT!!
Step-by-step explanation:
First, x=1 is a vertical line. A line that is perpendicular would be horizontal so it would have a slope of 0. A line parallel to it would be vertical too so it would have and infinite gradient.
I’m not sure if this is correct because I have no image but.... 3x + 1 = 18