shorter side : longer side = 3 : 7
Equate 3 parts tp 9 inches:
3 parts = 9 inches
Find 1 part:
1 part = 9 ÷ 3 = 3 inches
Find 7 parts:
7 parts = 3 x 7 = 21 inches
Area = Length x Width = 21 x 9 = 189 in²
Answer: The longer side is 21in and the area is 189 in²
Answer:
B
explanation:
I am sorry that I am not sure how to expalin but this is the correct answer.
Answer:
C
Step-by-step explanation:
Exponential decay should be in this format A = Ao × e^(-kt)