Mathematics, 26.09.2019 10:00 victoriay3
In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. the area of the shaded region is 160π cm2. what is the value of x? enter your answer in the box.
x =
Answers: 2
Mathematics, 21.06.2019 15:50, Kianna000
Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?
Answers: 1
Mathematics, 21.06.2019 17:00, tessadummer0033
What is a graph with a never ending line called?
Answers: 1
Mathematics, 21.06.2019 21:30, amesha62
In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
Answers: 1
In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm....
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