Determine whether each sequence is a geometric sequence. If yes, identify the common ratio.
1. 4, 12, 36, 108, ...
2. 5, 10, 15, 20, ...
3. 120, -60, 30, -15, ...
4.1, -4, 16, -64, ...
5. 50, 35, 20, ...
6. 625, 125, 25, 5, ...

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

lo98765432wqasdfghjkloi87654567890

step-by-step explanation: