Answer:
The population will be 39400 in approximately 17 years
Step-by-step explanation:
The increase in population after t years is given by the formula
Here
P_0 is the initial population
r is the growth rate and t is time in years
So far we know,
P_0 = 20000
r = 4%
P_t = 39400
Putting the values in the formula
Taking natural log on both sides
Hence,
The population will be 39400 in approximately 17 years
Answer:
-7
Step-by-step explanation:
Let the number be x
So we get equation : 3x + 8 = -13
Thus, 3x = -13-8 = -21
So, x = (-21)/3
Hence the required number is -7
Answer:
37.68 cm.
Step-by-step explanation:
In the given figure, the radius of the circle is 6 cm. As we know the formula for Circumference of Circle is 2πr,
= 2×22/7×6cm
= 37.68 cm
Answer:
3,000
Step-by-step explanation:
Since the next number is less than 5 you round down
Answer:
10D
Step-by-step explanation:
3D is DDD, 7D is DDDDDDD, add those D's together and you have 10D, DDDDDDDDDD