It would rotate 360 degrees because 18 seconds is twice the amount of 9 seconds, so you need to multiply 180 by 2, which is 360, or one full rotation.
Answer:
a) 11.75 * 10^6
b) 1.35 * 10^-7
Step-by-step explanation:
Here, we want to find the sum and the difference
a) That would be;
(3.48 + 8.27) * 10^6
= 11.75 * 10^6
b) That would be;
(9.58-8.23) * 10^-7 = 1.35 * 10^-7
Use photo math because you want calculator help not a human may be bad just use a calculator
Arc length = 2

r * Θ/360 =

d * Θ/360
so...
If we take pi to be 3.14,
Arc length = 2(3.14)(6) * 98/360
= 37.68 * 98/360 =
10.26 cm