A 78 lollll I need points so I’m guessing
Answer:
Answer 2) When dividing by -5, he did not change the
to
.
Step-by-step explanation:
If you divide or multiply a negative, you ALWAYS change the sign to its opposite.
Hope this helps! :)
The answer is 0.08 or you could say 8 * 10^-2.
Reasoning..
6.4 * 10^3 = 6400
8 * 10^4 = 80000
Divide those two numbers like shown in the problem and boom!
Answer:
The angle subtended by an arc at the center is double the angle subtended by it at any point on the remaining part of the circle.
Step-by-step explanation:
Let us consider the image attached.
Center of circle be O.
Arc AB subtends the angle
on the circle and
on the center of the circle.
To prove:

Proof:
In
: AO and PO are radius of the circles so AO = PO
And angles opposite to equal sides of a triangle are also equal in a triangle.
So, 
Using external angle property, that external angle is equal to sum of two opposite internal angles of a triangle.

Similarly,
In
: BO and PO are radius of the circles so BO = PO
And angles opposite to equal sides of a triangle are also equal in a triangle.
So, 
Using external angle property, that external angle is equal to sum of two opposite internal angles of a triangle.

Now, we can see that:

Using equations (1) and (2):

Hence, proved.