Triangle ABC has perimeter 22cm AB=8cm

BC=5cm

By calculation, deduce whether triangle ABC is a right angled triangle
Please helll

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.

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.