Can you give examples of situations that might be modeled with trigonometric functions? that is, can you give examples of phenomena that take on a series of values over and over again?

Here are your examples

A spring that is bouncing up and down.

An atom or molecule that resonates with a certain frequency.

In fact, anything that resonates: a violin string, a pendulum, the air column in a muffler,

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

on a coordinate grid, point a is at (−4.0, −2.4) and point b is at (4.0, −2.4). point b is a reflection of point a across the –axis. input either a lowercase x or i think is the right awnser

step-by-step explanation: