Answer:
see explanation
Step-by-step explanation:
The ones ticked are correct
Given
6 + 18 + 54 + 162 + 486
There is a common ratio r between consecutive terms, that is
18 ÷ 6 = 54 ÷ 18 = 162 ÷ 54 = 486 ÷ 162 = 3
This indicates the series is geometric with explicit formula
= a 
where a is the first term and r the common ratio
Here a = 6 and r = 3, thus explicit formula is
= 6 
The series in summation form with 5 terms in the series is
∑ 6 for k = 1 to 5
Sum = 6 + 18 + 54 + 162 + 486 = 726
Answer:
36girls
Step-by-step explanation:
3/1*12=36. To check 36/12=3/1=3:1
Answer:
0.062
Step-by-step explanation:
The numbers will decrease by 0.001 as you move the the left, so the list of numbers can be found as ...
3rd number: 0.064
2nd number: 0.064 -0.001 = 0.063
1st number: 0.063 -0.001 = 0.062
1/2.h.(b1 +b2)which would mean 1/2x5.5x(7+11)
9514 1404 393
Answer:
72
Step-by-step explanation:
h(4) = 4^3 -2·4 = 64 -8 = 56
g(4) = 3·4 +4 = 16
Then the sum is ...
(h+g)(4) = h(4) + g(4) = 56 +16
(h+g)(4) = 72
