The question gives you the formula to use, but it's printed wrong.
The 'x' is an exponent after the (1 + r).
All you have to do is take the formula, and write the numbers into it
that are also given.
The key thing to spot is that the forest is <u><em>decreasing</em></u>, so the 'r' is <u>negative</u>,
just as if you had money in a savings account and every year the bank took
6% <u>out</u> of it.
So the formula to use is f(x) = P (1 + r) ^x
P = 2000
r = -0.06
f(x) = 2000 (1 - 0.06)^x
= <em>2000 (0.94)^x</em>
The amount left after 12 years is
2000 (0.94)¹² =
2000 (0.476) =<em> 951.8 square kilometers</em>.
Answer:
Step-by-step explanation:
first find the slope
m = Δy/Δx = (-1 - (- 5)) / (4 - (-2)) = 4/6 = 2/3
Then plug either point into the equation
y - y₁ = m(x - x₁)
y + 1 = 2/3(x - 4)
which is equivalent to
y + 5 = 2/3(x + 2)
Answer:
https://www.calculators.org/math/standard-deviation.php
Step-by-step explanation:
you can calculate standard deviation from here with proper working plus accurate results.
Convert the meter distance to KM so thaey are all the same measurement:
1 meter = 0.001 km
400 m x 0.001 m/km = 0.4 km
Now add all three distances:
Total distance = 0.4 + 40.1 + 12.2 = 52.7 km.
The answer is B.
4 9/20 that is the mixed number of 4.45