Ethan entered a long column of numbers into a spreadsheet and noticed that he accidentally entered the data into column d when it should have been in column e. in 2-3 sentences, describe what ethan should do?

Robots with telescoping arms are sometimes used to perform tasks (e.g., welding or placing screws) where access may be difficult for other robotic types. during a test run, a robot arm is programmed to extend according to the relationship r = 3 + 0.5cos(4θ) and the arm rotates according to the relationship θ=−π4t2+πt , where r is in feet, θ is in radians, and t is in seconds. use a computer program to plot the path of tip a in x and y coordinates for 0 ≤ t ≤ 4s.

The forerunner to cell phones, pdas, and smartphones was

What are the most commonly found items in the trash according to the municipal solid waste report?