Answer:
Step-by-step explanation:
Step one:
we are told that the relationship between the number of species and the island area is given as
-----------------1
based on any given value for either area or number of species, we can find the other.
say we want to find the land area for a given amount of specie
Step two:
we first make area A subject of the formula.
let us isolate 
Divide both sides by 103.2 we have
Now, exponentiate both sides using the base e.
----------------2
for a given value of "S" we can find the area A based on the above expression.
Answer:
nearest 10: 650
nearest 100: 700
Step-by-step explanation:
Answer:
3770 mm.
Step-by-step explanation:
The diameter of of the wheels is 60mm, that means the radius is 30mm.
Now for one revolution of the wheels, they cover the distance of 
on the ground.
For 20 revolutions, the distance covered will be 20 times this.
Thus
Which is our answer.
Answer: 7.29 or 7 1/4 or 29/4 (they're all equal, just rewritten)
Step-by-step explanation:
the angles are equal, so we set the equations to each other and then solve. here's my work:
12k - 9 = 8k + 20
12k (- 8k) - 9 = 8k ( - 8k) + 20
4k - 9 = 20
4k -9 ( + 9) = 20 ( + 9)
4k = 29
k = 7.29 or 7 1/4 or 29/4
