Which biconditional is not a good definition?

a.) an angle is a right angle if and only if its measure is 90 degrees.
b.) an angle is acute if and only if is between 0 and 90 degrees.
c.) two angles are congruent if and only if their measures are the same.
d.) an angle is obtuse if and only if its measure is greater than 180 degrees.

Acharity is conducting a raffle, and it sells one ticket each to 35 women and 21 men. if 5 winners are randomly selected, what is the probability that they are all men? round to five decimal places. 0.00533 0.06268 0.09537 0.07776

Using inductive reasoning, what is the next two numbers in this set? 1,-7,13,-19 i got the numbers 14,-26 is that right?

The frequency table shows the results of a survey asking people how many hours they spend online per week. on a piece of paper, draw a histogram to represent the data. then determine which answer choice matches the histogram you drew. in order here is the.. hours online: 0-3, 4-7, 8-11, 12-15, and 16-19. frequency: 5, 8, 10, 8, 7 answer for the question is in the picture! : )