Answer:
A 32.1
Step-by-step explanation:
Given two points 
)
distance between to points = d = 
Now B is (-4,5) and A is (2,0)
So AB = 
C is (4,10)
So BC = 
D is (8,7)
So CD = 
E is (4,5)
So DE = 
and AE = 
Perimeter = 7.810 + 9.433 + 5 + 4.472 + 5.385 = 32.1
Answer:
100
Step-by-step explanation:
If there are 100 birds on a tree and you shoot 1, that bird is still on the tree. So there are 100 birds.
The correlation coefficient (r) is a number that describes how closely the numbers in the data set are related. The correlation coefficient will always be between −1.0 and +1.0. If the correlation is positive, there is a positive relationship. If it is negative, the relationship is negative. If the two are not correlated at all, the correlation coefficient will be 0. Strong and weak correlations are a little more subjective in that there is no exact cutoff between strong and weak, but generally, any r value that is close to either 1 or negative 1 is considered strong. Any value of r that is closer to 0 is considered weak.
#3 describes an isosceles triangle.
#5 describes an equilateral triangle.
#7 describes a right triangle.
