You forgot picture.So I can't explain that
Answer:
65.9734457254 or 65.97
Step-by-step explanation:
c= pi x diameter
c= pi x (10.5 x 2)
c= pi x 21
= 65.9734457254
Again, decimals and fractions represent all the values in between integers. Decimals are simply one step more of simplification from fractions.
Answer:
a = -19
b = -35
c = -180
d = -81
Step-by-step explanation:
Answer:
Step-by-step explanation:
can stay untouched, but 
has to be changed to 
. Now that they have they have the same denominator, you can add them. 
, which can be simplified, which is 
.
