∠a is an acute angle in a right triangle.
given that cos a=15/17, what is the ratio for sin a?
enter your answer in the boxes as a fraction in simplest form

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents