Answer:
d
Step-by-step explanation:
Given y is directly proportional to x² then the equation relating them is
y = kx² ← k is the constant of proportion
To find k use the condition y =
when x =
, then
= k(
)² =
k ( multiply both sides by 8 )
1 = 2k ( divide both sides by 2 )
k = 
y =
x² ← equation of proportion
When y =
, then
=
x² ( multiply both sides by 2 )
9 = x² ( take the square root of both sides )
x = ±
= ± 3
with positive value x = 3 → d
A = 2•3.14•3•8 + 2•3.14•3^2 = 207.34512
Answer:
600
3-4 months
Step-by-step explanation:
Answer:
PM:MQ = 8:3.
Step-by-step explanation:
;
;
.
Also,
in right triangle PBM.
Thus
.
Additionally
.
Therefore
.
for M is the midpoint of segment BC.
.
implies that
.