Solve this quadratic equation by completing the square. x2 + 6x = 18
A. X=-3 + 18
B. X=-6+ 27
X=-6 + 18
O D. x=-3+27
Please hel

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.)