Special cases of the sum and difference formulas for sine and cosine yields what is known as the double‐angle identities and the half‐angle identities.
(13/20) • 100 = 65%
65% of the can are recycled.
Answer: 3e-1
Step-by-step explanation: when it's going behind the decimal it will always be negative plus the reason it's one is because if you slide the decimal once it'll be the complete opposite
12 divided by 2/3 = 18
2/3 divided by 12 = 0.5