which statement describe “Hackers”? | A. all have the same motive | B. break into other people’s computers | C. may legally break into computers as long as they do not do any damage | D. are people who are allergic to computers | ​

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.

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My has been slow anyone else’s ?