I believe -c would be the opposite giving you 12
68. The 68-95-99.7 percent rule states that 68% falls within one standard deviation, 95% within 2, and 99.7% within 3. Since the standard deviation is 5, 47 and 57 are both one away, and because of that rule, the answer you need is 68%. Hope this helps.
Answer:
Step-by-step explanation:
Exterior angle is equal to the sum of opposite interior angles
3t - 37 + 2t - 14 = t + 46
Combine like terms
3t + 2t -37 -14 = t + 46
5t - 51 = t + 46
Subtract t form both sides
5t - 51 - t = 46
5t - t -51 = 46
4t - 51 = 46 {add 51 to both sides}
4t = 46 + 51
4t = 97
t = 97/4
t = 24.9°
