Answer:
14. -3
16. 4
18. 0
20. 22
22. C = 20
Explanation:
n = 3; r = -1; w = -1/2; t = 12; v = 0
14. n²r - wt = (3²)(-1) - (-1/2)(12) = 9 × (-1) - (-6) = -9 + 6 = -3
16. (3v + t)/(5n - t) = (3 × 0 + 12)/(5 × 3 - 12) = 12/3 = 4
18. rv³/n² = (-1 × 0³)/3² = 0
20. 7n - 2v + 2w/r = 7 × 3 - 2 × 0 + 2 × (-1/2) / (-1) =
= 21 - 0 + (-1)/(-1) = 21 + 1 = 22
22. C = (5/9)(F - 32)
F = 68
C = (5/9)(68 - 32)
C = (5/9)(36)
C = 5 × 36/9
C = 5 × 4
C = 20