Answer:
24 weeks
Step-by-step explanation:
He now has $50.
He just spent $142.
Before spending the $142, he had a total of
$142 + $50 = $192
He had saved a total of $192.
He saves $8 per week.
$192/$8 = 24
He saved for 24 weeks.
Answer:
63+22i
Step-by-step explanation:
(8 - 3i)(6 + 5i)
FOIL
first: 8*6 = 48
outer: 8*5i = 40i
inner: -3i* 6 = -18i
last: -3i*5i = -15 i^2 = -15(-1) = 15
Add together
48+40i -18i +15
Combine like terms
63+22i
Theirs a total of 60 customers divide it by 2 then times it by 5, you would get 150apples
Answer:
2cm
Step-by-step explanation:
area of parallelogram=b*h=18cm
5*4=20
length of corresponding heights=20-18
=2cm
Solution :
From the given equation :
E[ E (X|Y) ] = E (X)
a). Then,
E[ E [ X|Y,Z] | Z] = E [ X|Z ]
---- True
E [ E [ X|Y ] | Z ] = E [ X|Z ]
---- False
E [E [X | Y,Z ]] = E [X|Y ]
---- False
b). Th quantity E [ g (X,Y) | Y,Z ] is ,
- A random variable ----- True
- A number ----- False
- A function of (X,Y) ----- False
- A function of (Y,Z) ----- True
- A function of Z only ------- False
