In circle E with
m
∠
D
G
F
=
27
m∠DGF=27, find the
m
∠
D
E
F
m∠DEF.

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?

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

Suppose a pendulum is l meters long. the time, t,in seconds that it tales to swing back and forth once is given by t=2.01