Select all irrational numbers.

9√

12−−√
16−−√
20−−√
25−−√

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.