7) 31, 27, 12, 10, 0, -4, -19, -27, -203
8) 78, 32, 9, -5, -18, -24
9) 90, 11, 5, -5, -47, -50, -62
10) 24, 19, 8, 6, 1, 0, -2, -8, -9, -15
11) 12, 8, 7, -1, -13, -20
12) 14, 7, 6, 0, -3, -5, -8, -25
Answer:
Day 0 , A = 150
Day 1 , A = 106.06
Day 2, A = 75
Day 3, A = 53.033
Day 4, A = 37.5
Step-by-step explanation:
The complete question is attached below
The exponential decay for area is depicted by
------Eq (1)
Substituting the values given in the attachment, we get -
![75 = 150 * e^{\lambda*2}](https://tex.z-dn.net/?f=75%20%3D%20150%20%2A%20e%5E%7B%5Clambda%2A2%7D)
On solving for lambda we get -
![\lambda = ln\frac{1}{\sqrt{2} }](https://tex.z-dn.net/?f=%5Clambda%20%3D%20ln%5Cfrac%7B1%7D%7B%5Csqrt%7B2%7D%20%7D)
Substituting the value of lambda in equation 1 we get -
![A = 150 * e^{ln\frac{1}{\sqrt{2} } ^d}\\A = 150 \frac{1}{\sqrt{2} }^d\\A = 150 (2)^{\frac{-d}{2}](https://tex.z-dn.net/?f=A%20%3D%20150%20%2A%20e%5E%7Bln%5Cfrac%7B1%7D%7B%5Csqrt%7B2%7D%20%7D%20%5Ed%7D%5C%5CA%20%3D%20150%20%5Cfrac%7B1%7D%7B%5Csqrt%7B2%7D%20%7D%5Ed%5C%5CA%20%3D%20150%20%282%29%5E%7B%5Cfrac%7B-d%7D%7B2%7D)
Substituting the value of d one by one we get
Day 0 , A = 150
Day 1 , A = 106.06
Day 2, A = 75
Day 3, A = 53.033
Day 4, A = 37.5
Answer:7x
Step-by-step explanation:because you can’t multiply them like 2*2 so you just put them together
Answer:
14
Step-by-step explanation:
radius formula