Q2: The last selection is appropriate.
For a square lawn of area 8x, the length of one side is √(8x). If 2 feet are added to each end, the total length is
.. 2 +√(8x) +2 = √(8x) +4
If this length exceeds the 20 feet of pavers that Aroldo purchased, then there will NOT be enough to complete the project. Hence the inequality you want is
.. √(8x) +4 > 20
The first one is 60 because equal sides mean equal angles and all angles in a triangle add up to 180 so...
180 ÷ 3 = 60
Rate of change: 27.4
164.40/6= 27.4
Answer:
Tip of $1.60
The total is $9.60
Step-by-step explanation:
(20% × $8) + $8
$1.60 + $8
$9.60
which means the parabola
intersects the x-axis at
and
. Assume
.
Then the volume of the solid generated by revolving the region about the x-axis is
Revolving about the y-axis, the volume would be
The volumes are the same independent of which axis is taken as the axis of revolution, so
We're assuming
, so we can safely divide both sides by
to get
.