Which form of radioactive decay will penetrate both paper and foil, so we use lead in order to protect ourselves from it? *
1 point
Alpha Decay
Beta Decay
Gamma Decay
Delta Decay

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap