Triangle A B C is shown. Angle A C B is a right angle. The length of the hypotenuse is 20.
What additional information would be necessary to determine sin(A) without using the Pythagorean theorem? Explain.

The length of AC is needed because it is the side adjacent to ∠A.
The length of AC is needed because it is the side opposite ∠A.
The length of BC is needed because it is the side opposite ∠A.
The length of BC is needed because it is the side adjacent to ∠A.

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed