Answer:
3.14*6
Step-by-step explanation:
answer=18.84
Answer:
Each one of the ten people has to shake hands with all the $20$ other people they don’t know. So $10\cdot20 = 200$. From there, we calculate how many handshakes occurred between the people who don’t know each other. This is simply counting how many ways to choose two people to shake hands from $10$, or $\binom{10}{2} = 45$. Thus the answer is $200 + 45 = \boxed{\textbf{(B)}\ 245}$.
Step-by-step explanation:
f(x)= -1/2x-7 (better expressed as f(x) = (-1/2)x - 7 ) has a negative slope, so as x increases, y decreases. Answer D is correct.
Answer:
French test
Step-by-step explanation:
We first calculate the scores as percentages:
#Spanish test:

#For the French test, her percentage is:

Since, 90.48$>84.38%, Claire did better in the French test.
Answer:
Nice
Step-by-step explanation: