The answer is a and b hope I help
Answer: 6 cm
Step-by-step explanation:
A = b(h) / 2
9 = b(3) / 2
9(2) = b(3)
18/3 = b
6 = b
b also known as base stands for AB
Hello. To answer this questions, we need to remember some properties about fractions and equivalences.
Starting by the question 9:
Call the population 5 years ago by P. If the population has decreased 12000 in these 5 years and this represents a decrease of 3%, so it means the new population is 0.97P.
With this, we can make the following equation:
P - 12000 = 0.97P
Subtract 0.97P and sum 12000 in both sides of the equation
0.03P = 12000
Divide both sides of the equation by a factor of 0.03
P = 3600000