Use a ruler to measure the diameter of a quarter to the nearest sixteenth of an inch . How can you use that information to find the radius and the circumstance of the quarter.

Hello sorry can’t good luck tho

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.

Most of them do but everyone doesn’t get exactly the same questions on every quiz so there will also be questions you’ve never had. you can find a lot online though like on quizlet and on here.