Our first expression is equal to zero:

So we simply find the expression that is equal to zero.
The final answer is a.
Answer:
16 by 8
Step-by-step explanation:
Answer:
= 15 x^2
Step-by-step explanation:
Area of a rectangle is
A = l*w
= (5x) * (3x)
= 15 x^2
18.273 years will take to reach the population of 7500, if a town has a population of 4000 and grows at 3.5% every year.
Step-by-step explanation:
The given is,
Population of 4000
Rate of grow 3.5% every year
Population after few years 7500
Step:1
Formula to calculate the population with the grow rate every year,
..........................(1)
Where,
F - Population after t years
P - Initial population
r - Rate of grow
t - No.of years
From given,
F = 7500
P = 4000
r = 3.5%
Equation becomes (1),


1.875 = 

Take log on both sides,

Substitute log values,


= 18.273
t = 18.273 year
or
t = 18 years 3 months 2 weeks
Result:
18.273 years will take to reach the population of 7500, if a town has a population of 4000 and grows at 3.5% every year.
40 and 40 and 100 is one set
Another is 40 and 70 and 70