Choose the correct alternative. The earnings of Ahmed and Bekhit are in the ratio 3:7 and that of Bekhit and Saeed is 4:9 and that of Mohammed and Saeed is 7:6. If the sum of the earnings of Ahmed, Bekhit, Saeed, and Mohammed is AED 52,950, then what are the earnings of Mohammed?

AED 21,050
AED23,050
AED 24,050
AED33,050

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

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?