Answer:
mean: 6.9
median: 7
range: 2
Step-by-step explanation:
Answer:
Solving the radical
we get 
Step-by-step explanation:
We need to express the radical
using the imaginary unit i
Prime factors of 81 are: 3x3x3x3
and 
Solving:

So, Solving the radical
we get 
The graph x2 only has 1 x-intercept, because it is directly on the origin.
The graph x2+2 is the parent function shifted up by 2 units. Since the lowest point is (0,2) and the graph points up, it has no x-intercepts.
The answer is B
F(x)=x(0.4)^19+7
Answer:
AC = 18 ft
Explanation:
There is a geometric theorem that states that:
" In a triangle, the line joining two midpoints of two sides is parallel to the third side and equals have its length"
Now, let's check the given triangle:
M is the midpoint of AB
N is the midpoint of BC
Based on the above theorem:
MN will be parallel to AC
and
length of MN = (1/2) * length of AC
We are given that:
length of MN = 9 ft
Therefore:
9 = (1/2) * length of AC
length of AC = 2 * 9 = 18 ft
Hope this jhelps :)