Answer:
2x+8 and 2(4+x)
Step-by-step explanation:
Its 2x+8 because all you have to do is distribute the 2. So 2 times x is 2x and 2 times 4 is 8. You can just rearrange it for 2(4+x)
Answer:
a
Step-by-step explanation:
Answer:
192.42 m²
Step-by-step explanation:
big circle
10.5 ² x pi =346.3605
inner circle
7 ² x pi = 153.9380
346.3605 - 153.9380 = 192.4225 (192.42)
Answer:
Make sure you are using a perfect circle.
Measure the circumference of a circle as accurately as you can.
Measure the diameter of the circle.
Use the formula.
For more accurate results, repeat this process with several different circles, and then average the results.
Step-by-step explanation:
