Which relation is not a function? Group of answer choices (7, 3), (7, 6), (7, 9), (7, 12) (7, 15) (-4, 6), (0, 6), (7, 6), (4, 6), (-7, 6) (4, 1), (8, 2), (12, 3), (16, 4), (20, 4) (1, 3), (3, 5), (5, 7), (7, 9), (9,1)

77

step-by-step explanation:

you need to give us more information since we can't answer

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465