Answer:
-7 feet above the ground
Step-by-step explanation:
8 - 7x^2 + 3 = 4x^2 - 1
8+3-7x^2 = 4x^2-1
11-7x^2 = 4x^2-1
B. Commutative property of addition
We can swap numbers and obtain the same results.
In this case, we swapped 8+3 and added them.
I've heard of milliseconds, microseconds and nanoseconds, but never a megasecond. By the way:
<span>1 second = 1000 milliseconds </span>
<span>1 second = 1,000,000 microseconds </span>
<span>1 second = 1e+009 nanoseconds
</span>
There are no obtuse angles
The formula to use is F +V -E = 2
F = Faces = 16
V = Vertices = 14
E = edges = Unknown
We can fill in the information we have and solve for edges:
16 + 14 - E = 2
Add 16 and 14:
30 - E = 2
E = 30-2
E = 28
There are 28 edges
