Answer:
72ft or 82ft
Step-by-step explanation:
It's too long for an explanation but it's defo NOT 4ft or 60ft.
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The balloon assumes the shape of a sphere with a formula of the volume equal to V = 4/3 pi r^3 where r is the radius of the balloon. In this case, we are given with volume of 288 pi in^3. We just substitute the given volume such that the resulting radius that answers the problem is 6 inches.
Given:
To find:
The quadrant in which 
lie.
Solution:
Quadrant concept:
In Quadrant I, all trigonometric ratios are positive.
In Quadrant II, only 
and 
are positive.
In Quadrant III, only 
and 
are positive.
In Quadrant IV, only 
and 
are positive.
We have,
Here, is negative and is also negative. It is possible, if 
lies in the Quadrant IV.
Therefore, the correct option is D.
Whats the total perimeter?
Answer:
No, they need $138.76 more
Step-by-step explanation:
April:
10% of $125 = 12.5
12.5 x 2 = 25
$125 + $25 = $150
May:
10% of $150 = $15
$15 x 2 = $30
$150 + $30 = $180 (180 is 20% more than 150)
June:
10% of $180 = $18
$18 x 2 = $36
$180 + $36 = $216
July:
10% of $216 = $21.60
$21.60 x 2 = $43.20
$216 + $43.20 = $259.20
August:
10% of $259.20 = $25.92
$25.92 x 2 = $51.84
$259.20 + $51.84 = $311.04
$125 + $150 + $180 + $216 + £259.20 + $311.04 = $1241.24
$1380 - $1241.24 = $138.76
