Xolisile and Xolani are twins. To reward them for passing matric well, their parents gave them R20 000.00 each. Each one of them decided to invest three quarters of their money for a period of three years. Xolisile invested her money at a simple interest rate of 6.5% per annum an Xolani invested hers at an interest rate of 6.5% per annum, compounded annually. What is the difference between the values of the two investments at the end of the period.

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m

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?

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?