Gan arch has the shape of a semi-ellipse. the arch has a height of 8 feet and a span of 20 feet. find an equation for the ellipse and use it to find the height, in feet, of the arch at a distance of 5 feet from the center. (round your answer to the nearest hundredth if necessary.)

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)