Wet p the set of polynomials. Let a, b, c and d be elements of Psuch that band dare non-zero elements of P. Which of the following is true
regarding the sum below?
at á
A.
B.
C.
D.
The sum is a polynomial.
The sum is a rational expression.
The sum is an integer.
The sum is a rational number

Give all possible names for the line shown.calculation tip: lines can be written with either point first.

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m

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?