Answer: D
Step-by-step explanation:

The equation for finding the hypotneus of a right triangle is

so we know that 4²+b²=5²
so that would simplify as 16+b=25
so x=25-16
which is 9
so therefore we can conclude that
Answer:
15
Step-by-step explanation:
6x+11 > 7x-2
2+11 >7x-6x
13>x
15 is more than 13 which does not satisfy the inequality.
X has to be less than 13 and cannot even equal 13 as that is not the sign
Answer:
Step-by-step explanation:
This can be represented as exponential decreasing function.
y = a(1 - r)t
a = starting amount
r = rate
t = years
y = 1600(1 - .0725)15
= 1600(.9275)15
= 1600(.32337673)
= 517.40
In 15 years, the forest will shrink in size to 517.40 km2