Traffic police man waves his arm in in the air for traffic to go by he moved his arm in a way that forms a 75 degree angle how many square cm does his arm sweep if his arm is 60 cm long

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

Find the solution of each of the following.

X-10/4 when x = –18 a 7 b –2 c –7 d 2