What is 75,000 in scientific notation

1. are the triangles similar and if so why? what is the value of x? show your work.

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

What is the binomial expansion of (2x-3)^5