Answer:
<h2>a = - 4.8</h2>
Step-by-step explanation:
To find the value of a when b=6 we must first find the relationship between them.
The statement
a is inversely proportional to b is written as

where k is the constant of proportionality
When a = 7.2 , b = -4
So we have

k = 7.2 × - 4
k = - 28.8
So the formula for the variation is

When
b = 6
That's

We have the final answer as
<h3>a = - 4.8</h3>
Hope this helps you
Well if you have three and add negative 3 it equals 0
Answer:
Step-by-step explanation:
The area is the product of two dimensions.
If the ratio of sides is k, then the ratio of areas is k²
<u>We have:</u>
- k² = 200/8
- k² = 25
- k = √25
- k = 5
Correct choice is C
Answer:
310.86ft²
Step-by-step explanation:
30/2 = 15
3.14*15² = 706.5
30+3+3 = 36
36/2 = 18
3.14*18² = 1017.36
1017.36 - 706.5 = 310.86
Hope it helps