The equator is the imaginary line that runs left to right. It divides the earth into the Northern Hemisphere and the Southern Hemisphere. Countries near the equator are hotter and humid, and places far from the equator are colder.
So remember the rule with multiplying exponents of the same base:
In this case:
<u>The equivalent of 9^2 × 9^6 is 9^8.</u>
It is given that the half-life is 20 years and the current population is 1.6 million.
It is required to find the population in 30 and 65 years, respectively.
Recall the Exponential Decay Half-Life Formula:
Where N₀ is the current population, t is the time in years, and h is the half-life.
(a) Substitute N₀=1.6, h=20, and t=30 into the formula:
About 600,000 animals will be left in 30 years.
(b) Substitute N₀=1.6, h=20, and t=65 into the formula:
Answer:
Step-by-step explanation:
# 12
1 2 3 4 5 6 7 8 9 10 11 <u><em>12</em></u> 13 14 15 16 17 18 19 20 21 22 23
12 is a median of a data
7x-3y=15 is the equation in standard form.