Two circular metal discs of radii 3.3 cm and 5.6 cm are melted down and cast into
a single circular disc of the same thickness.
Find the radius of this disc.

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

Determine whether triangle tjd is congruent to triangle sek  givent (-4,-2), j (0,5), d (1,-1), s (-1,3), e (3,10), k (4,4)and explain the reason.  select one: a. yes, by sssb. no, by aasc. no, by asad. yes, by sas

Why is causation so much more difficult to prove than correlation?