Use the identity P(A ∪ B) = P(A)+P(B)-P(A ∩ B)
P(A)=0.50
P(B)=0.60
P(A ∪ B) = 0.30
=>
P(A ∪ B) = P(A)+P(B)-P(A ∩ B)
=(0.50+0.60)-0.30
=0.80
Answer:
3/8 cup of butter
Step-by-step explanation:
1/4 / 2 = 1/8
1/8x3=3/8
Answer:
30
Step-by-step explanation:
just do the cross and smile method
Answer:
36
Step-by-step explanation:
In a Parallelogram , it is important to note that opposite sides are equal to each other.
We are given parallelogram ABCD.
We have sides: AB, BC, CD, AD.
Since opposite sides are equal then:
AB = CD
BC = AD
The perimeter of a parallelogram is the sum of all its sides.
In the question: BC=13 and AB=5
Hence,
AB = CD = 5
BC = AD = 13
Perimeter of Parallelogram ABCD = 5 + 5 + 13 + 13
= 36.
Answer:
45 positive numbers have the sum of their digits equal to 8
Step-by-step explanation:
given data
number = 1 to 999
sum n = 8
to find out
positive numbers
solution
we will choose number by this formula
(n+1) (n+2) / 2
here n is 8
so put this value we get number that
positive numbers = (n+1) (n+2) / 2
positive numbers = (8+1) (8+2) / 2
positive numbers = 90 / 2
so 45 positive numbers have the sum of their digits equal to 8
