What number is represented by point P? 102
1-10-3
0
2-10-3
4.103 5.10-3 6-103 7.103 8.103 9.103
3.10

Which function represents the sequence? f(n)=n+3 f(n)=7n−4 f(n)=3n+7 f(n)=n+7

Geometry triangles(ignore the handwriting)

The life, in years, of a certain type of electrical switch has an exponential distribution with an average life b = 2. if 100 of these switches are installed in dif- ferent systems, what is the probability that at most 30 fail during the first year?