0.72 repeating is the sum of a geometric series with first term 0.72 and common factor 1/100. The sum is given by:
(first term) 0.72 0.72 72
--------------------------- = --------------- = ------------ = ------------
1 - common factor 1 - 1/100 99/100 99
This 72/99 can be reduced to 8/11.
0.72 repeating can be rewritten as the fraction 8/11.
Step-by-step explanation:
The first six terms for each of the following sequenses are:
(a) a_n = 3n - 10
1. a_1 = -7
2. a_2 = -4
3. a_3 = -1
4. a_4 = 2
5. a_5 = 5
6. a_6 = 8
(b) a_n = (1 + (-1)^n) ^n
1. a_1 = 0
2. a_2 = 4
3. a_3 =0
4. a_4 = 16
5. a_5 = 0
6. a_6 = 32
Where is the picture of the question your asking?
Equation of circle is (x-h)²+(y-k)²=r²
- x²+y²-2x-8=0
- x²-2x-8+y²=0
- x²-2x+1-9+y²=0
- (x-1)²+y²-9=0
- (x-1)²+(y-0)²=9
- (x-1)²+(y-0)²=3²
Radius=3
Centre (1,0)
Option A and D are correct
Answer:
4.5 hours
Step-by-step explanation: