Answer:
0.995 P(at least 2) = 1 – P(X = 0) – P(X=1)
1 – 15C0 * 0.40 *0.615- 15C1*0.41*0.614
1 – 0.0000 – 0.005
= 0.995
Step-by-step explanation:
He first answer is: <1 and <4 <2 and <3
I can’t see all of question 2
Answer:
x=4
y=10
Step-by-step explanation:
3x +3y = 27
x - 3y = -11 (add these up so 3y will be eliminated and you'll have x only)
4x = 16
now let's eliminate x (you can put 4 instead of x though)
3x + 3y = 27
-3/ x -3y= -11 (multiple the the 2nd equation with -3 to eliminate x )
3x + 3y =27
-3x + 3y =33
6y = 60
Answer:
(3,4) (4,3) (9,7)
Step-by-step explanation:
this represents a function because none of the x's in the x values repeat
