Step-by-step explanation:
The area of a circle is given by :
A = πr²
r is the radius of the circle
(4) Diameter = 22 cm
Since, radius = diameter/2
r = 11 cm
Now, area of the circle,
(5) Diameter = 30 cm
Since, radius = diameter/2
r = 15 cm
Now, area of the circle,
(6) Diameter = 4cm
Since, radius = diameter/2
r = 2 cm
Now, area of the circle,
So, the area of circles 4,5 and 6 are 380.13², 706.85² and 12.56² respectively.
Given:
initial value = 16,000
depreciation rate = 35%
current value = 2,000
equation:
2,000 = 16,000 (1-r)^t
2,000 = 16,000 (1-0.35)^t
2,000 = 16,000 (0.65)^t
2,000/16,000 = 0.65^t
0.125 = 0.65^t
log(0.125) = log(0.65^t)
log(0.125) = log(0.65) * t
log(0.125) / log(0.65) = t
4.82 = t
or 5 years
16,000 * 0.65 = 10,400
10,500 * 0.65 = 6,760
6,760 * 0.65 = 4,394
4,394 * 0.65 = 2,856.10
2,856.1 * 0.65 = 1,856.47
Answer:
C. dL/dt=k(100−L)
Step-by-step explanation:
The rate of change of the number of words memorized is proportional to the number of words left to be memorized.
The rate of change is dL/dt.
The rate is a constant k. Since the rate is proportional to the number of words left to be memorized, and the initial number of words is 100, k has to be multiplied by (100-L).
So the correct answer is:
C. dL/dt=k(100−L)
In plain and short, we simply divide the "whole" by the sum of the ratios, and distribute accordingly.
now, 100% is the whole of any amount, so we'll divide 100% by (3+1).
Answer:
3 only ............ Mark as the brainliest..
Step-by-step explanation: