The answer is b with the angles
It would be c.8.6291036592g/ml
Answer:
V(X)= 39.10
V(Y)= 40
Step-by-step explanation:
Given that
Total number of student = 140
Bus A - 31
Bus B- 43
Bus C- 27
Bus D- 39
The probability that a student was on the bus is proportional to the number of student. Eg 31/140 in bus A, 43/140 on bus B, ...
E(X) = (31*31/140) + (43*43/140) + (27*27/140) + (39*39/140)
= 35.5
V(X)= 39.10
The bus driver have 1/4 probability on being on any of the buses.
E(Y) = 140/4 = 35
V(Y)= 40
Answer:
Neon= -10+10= 0 on no change
oxide=-10+8=-2
copper=-27 +29 = 2
tin= -50 +50 = 0 or no change
Step-by-step explanation:
Its basically subtraction ( i pretty sure thats right)
Answer:
$3.93 or 393 pennies
Step-by-step explanation:
every 100 pennies is a dollar