Answer:

Step-by-step explanation:
-We can use the exponential decay function to estimate the size after 13 years:

Where:
is the size after t years, t is the time, r is the rate of decay and
the original size.
#We substitute and calculate as:

Hence, the forest covers
after 13 years.
Answer:
d/2 = r if you are talking about circles, if that's the case then the r would be 5
Answer:
Letter A ang sagot bata maniwala sa trust
Triangle area is 1/2 bh
So 11.9 is about 12, 7.1 is about 7.
7x12 = about 84 sq, cm
Go step by step
23 is decreased by : 23 -
The product of 44 and an unknown number
Let x represent the unknown number
And Product means multiplication
The product of 44 and an unknown number : 44x
Equals 199 : = 199
Now, put that all together
23 - 44x = 199
Now, begin to solve
Subtract 23 on both sides of the equation
-44x = 176
Divide both sides of the equation by -44 to isolate x
x = -4
The unknown number is -4