For number one
S: supplement.
R: angle1+angle8 =18
#2
S: supplement
R: angle 3+ angle 6=180
So you are using Volume...
V=1/3(pi)r^2h
as you go thu this equation
15 x 15 =225
12 x12= 144
225-144= 81
81/9=9
which your piece would be 1/3 pi r^2h answer is 1356.48
and you round it to the nearest tenth. So
( 1356.5) is ur answer...... So (B)
Answer:
=
$
518.01
Explanation:
compound interest formula $A = P*(1+R)^n#
P
=
$
400
,
r
=
.09
,
n
=
3
Substituting the values, we get A =
400
⋅
(
1.09
)
3
=
$
518.01
From my alt account from, https://socratic.org/questions/how-much-would-400-invested-at-9-interest-compounded-continuously-be-worth-after