Which of the following lists of ordered pairs is a function? A. (1, 2), (4,0), (3,5), (4,3)
B. (2,5), (3,6), (6,9)
C. (-1, 2), (2, 3), (3, 1), (2,5)
D. (2,5), (3, 6), (2, 1)

3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.