Use a=

r^2 (r represents your radius of 4 feet)

(4^2)
Answer = 16

^2
Answer:
Step-by-step explanation:
There's not a lot to go on with the details provided in the question, but based on all you said, if there isn't more to the question, then the true statement is the fact that Nadia needs 2/5 cup of orange juice for punch recipe.
Twice that amount is 4/5, and logically, that can't suffice in a party, except it's a party of 3, maybe 5 people. I'm assuming the people in the party would be much more than that. Makes the fraction impossible
Answer: 4. Reviewing own tasks before submitting a complain to ensure basis
Step-by-step explanation:
Microworkers is a sort of freelance website where people can hire workers to do tasks for them from anywhere. It is international so a person in Alaska can hire a worker in Guyana if need be.
The community aims for friendly relations and as such everyone there should share this responsibility. Options A to C are ways to share in this except for option D. One should submit a complaint before they receive tasks.
Answer:
2 3/4
Step-by-step explanation:
Answer:
you want 4 correct and 16 incorrect
there are 20 questions
each question has four answers, so
P(right answer) = 1/4
P(wrong answer) = 3/4
----
Since you want 4 correct of 20 we have a combination of 20C4
This is a binomial problem where p = 1/4, q = 3/4 and we get
(20 "choose" 4)*(probability correct)^(number correct)*(probability incorrect)^(number incorrect)
putting numbers in we get
(20c4)*(1/4)^4*(3/4)^16
This gives us
~ .189685
Step-by-step explanation: