What is the probability of rolling the number 20 on a 20-sided die?

Without advantage the odds are simple: the chances of each number turning up on a d20 are 5%. The chance of rolling a natural 20 is 5%. The chance of suceeding at a DC 10 task is 55% (5% * 11 values on the die).

Step-by-step explanation:

i believe the answer is the polygon, heptagon.

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.