It’s -1 they are subjecting by 2
Answer:
arc AB = 12.40°
Step-by-step explanation:
diameter = 7.9 x 2 = 15.8
circumference = 15.8 x 3.14 = 49.612
since the central angle of arc AB is 90 °
90/360 x 49.612 = 12.40
Find the length of the line from A to C, which would be the radius using the distance formula:
Distance = √(-5 +1)^2 + 1+2)^2)
Distance = √(4^2 + 3^2)
Distance = √25
Distance = 5
The equation of a circle is written as (x-h)^2 + (y-k)^2 = r^2, where h and k is the center point X and y values and r is the radius.
The center of the circle is located at A ( -1,-2) and the radius is 5.
Replace h, k and r with those values:
(x - (-1))^2 + (y- (-2))^2 = 5^2
Simplify to get:
(x+1)^2 + (y+2)^2 = 25
Abu X + 5
Razak 2x + 10
Ahmad X
Together 4x + 15
175 - 15 = 160
160 / 4 = 40
X = 40
Answer:
The population increase by people per year at rate of 2.4 %
Step-by-step explanation:
Given in the question as
The Population of city in 2004 was 22,700
The population of city in 2010 is 26,300
Let the rate of increase of people per year is R%
So, population is increase from 2004 to 2010 i.e in 6 years
So, equation can be written as
Final population = Initial population
Or, 26,300 = 22,700
Or, =
Or, 1.158 =
Or , = 1 +
Or , 1.024 - 1 =
Or, 0.024 =
∴ Rate = 0.024 × 100 = 2.4
Hence the population increase by people per year at the rate of 2.4% Answer