Find the cosine of ∠I. Write your answer in simplified, rationalized form. Do not round.
cos (I) =

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

Write the standard form of an equation with (see picture below)

Of jk j(–25, 10) k(5, –20). is y- of l, jk a 7: 3 ? –16 –11 –4 –1