Answer:
Step-by-step explanation:
5. 17.25-8.25= 9
6. 7+8=15
7. 2*8=16 or 2*9=18
Answer:

Step-by-step explanation:
We want to simplify the radical expression:

We write √6 as √(2*3).
This implies that:

We now split the radical for √(2*3) to get:

We obtain a perfect square at the far right.

This simplifies to

This gives us:

and finally, we have:

The circumference of the circle
is given by the equation C = pi * D. Incorporating the length of the diameter
into the equation, we have,
C = pi * D
C =
pi * 7cm
C =
21.99 cm
0.99999696 is your answer I am pretty sure.