For each of the following primes p and numbers a, compute a−1 mod p in two ways:
(i) Use the extended Euclidean algorithm.
(ii) Use the fast power algorithm and Fermat’s little theorem.
a. p = 47 and a = 11.
b. p = 587 and a = 345

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

To convert celsius temperatures to fahrenheit, you can use the expression (c + 32). tom says that another way to write this expression is c + 32. what error did tom make?