For the first 60 positive integers, a = 1, n = 60, l = 60.
Sn = n/2(a + l)
s = 60/2(1 + 60) = 30(61)
For the next 60 positive integer, a = 61, n = 60, l = 120
Sum = 60/2(61 + 120) = 30(61 + 120) = 30(61) + 30(120) = s + 3600
Sum of first 120 positive integers = s + s + 3600 = 2s + 3600
The x axis of the graph show the distance driven and y axis represnt Gas remains
at 40 miles of distance i.e x =40
Then value of y at x = 40 is 3.5 i.e. y = 3.5
If 11 bubbles form in 30 seconds then in in 60 seconds double the amount of doubles. So 22 bubbles a minute. Glad to help.
Answer:
d. 40
Step-by-step explanation:
The number of faces, edges and vertices is related by the following formula:
In which V is the number of vertices, E is the number of edges and F is the number of faces.
In this question:
We want to find E. So
The correct answer is given by option D.