Answer:
please I can't see any question
but the equation of a line is
y- y1 =m(x-x1)
where m is the the gradient of the line
|x + 12| + 7
That's not an equation. It doesn't ask a question, and
it isn't looking for an answer.
It's an expression that stands for a number. The number it
stands for depends on the value of 'x', and if 'x' ever changes,
the value of the expression also changes immediately.
5x - 3y = 9
5x = 9 + 3y
5x - 9 = 3y
( 5x - 9 ) / 3 = y
y = ( 5 / 3x ) - ( 9 / 3 ) ( I just split the common denominator to individual parts )
y = 5 / 3x - 3
Answer:
1.4
Step-by-step explanation:
Given the probability distribution :
X _____ 0 ____1 ____ 2 ____ 3 ____4
P(x) _ 0.16 _ 0.41 _ 0.32 __ 0.09 __ 0.02
Expected number of people waiting in line :
E(X) = Σ(x * p(x))
E(X) = (0*0.16) + (1*0.41) + (2*0.32) + (3*0.09) + (4*0.02)
E(X) = 1.4
