It costs $120 to have a party for 9 people at the skating rink. The cost includes a charge of $10 for each person attending the
2 answers:
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Answer:
After expanding the polynomial we get
Step-by-step explanation:
We need to expand the polynomial
Multiply the terms:
So, after expanding the polynomial we get
Answer: I do not understand the options you gave but but cos30º is equal to /2 which is 0.86602540378.