Answer:
60 Hundreds, 30 Fifty's, 2 ones
Answer:
2/11
Step-by-step explanation:
2 3/4 = 11/4
1/2 x 4/11 = 4/22 *when you divide a something by a fraction, you flip that fraction to get its reciprocal*
4/22 simplified is 2/11
The radius of a circle is half of the diameter
10.) (6/5)= 1.2
1.2/2=.6
The radius of the circle in question 10 is .6 or 1/2 inch
11.) because x (diameter) is not defined in this problem. We can't solve directly for x, but we know the radius is half of the diameter
so we can say
r= 1/2x
Answer:
P(A U B)=P(A)+P(B)
Step-by-step explanation:
Reading the options that we have for the answer, one of them (the first one) is the definition of being independent. A and B are independent if and only if P(A ∩ B)=P(A)*P(B).
So the first one IS necessary true for independent events and with this equation, option two and three are necessary true for independent events:
For definition of P(A | B)
P(A | B)= P(A ∩ B) / P(B)
And we replace P(A ∩ B) using the first option that we know it´s true:
P(A | B)= P(A)*P(B) / P(B)= P(A)
So P(A | B)=P(A) it´s true for A and B independent.
The same process goes to show P(B | A)=P(B)
Because of this, the only one of the options that could not be true for independent events is P(A ∪ B)=P(A) + P(B), and this happens because P(A ∩ B)=P(A)*P(B) applies but it could be different from 0 considering P(A ∪ B)=P(A) + P(B) - P(A ∩ B). We conclude this property (P(A ∪ B)=P(A) + P(B)) is not necessary true for A and B independent.
Answer:
C
Step-by-step explanation:
Hope this is right. Let me know if not! Have a nice day :)
