Given that sin0=21/29 what is value of cos0 for 0< 0< 90

How do you determine whether a relationship represented as as graph is linear or nonlinear

What is the average diastolic blood pressure for adults

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.