Answer:
Formula for a linear sequence is
Tn=a+(n-1)d
where Tn is the nth term
a is the first term
n is the number of term
d is common difference
True. ex. 2 x 8 =16 16/2 = 8
Divide 18 by 2(9) then square that (81). add 81 to both sides
You can use calculus ( related rates). Given the rate os change of the radius for example you can find the rate of change of volume using differential calculus.
(2x-20)/3 = 2x start by multiplying both sides by 3
