Answer:
9
Step-by-step explanation:
y - y₁ = m(x - x₁)
y - (-1) = 4[x - (-3)]
y + 1 = 4(x + 3)
y + 1 = 4(x) + 4(3)
y + 1 = 4x + 12
- 1 - 1
y = 4x + 11
The answer is B.
Step-by-step explanation:
your friend is closer to the school (b)
it's graph covers less area..
The event that either M1 or M2 fails has probability
by the addition rule. Failure events are independent, so
so that
Denote this probability by . Then follows a geometric distribution with this parameter and has density
The expectation is .