Answer:
a) 
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that A and B are independent events
P(A∩B) =P(A) P(B)
we will use the conditional probability

or
<u></u>
<u> Step(ii):-</u>
Given that A and B are independent events
P(A∩B) =P(A) P(B)
<u></u>


A) 0.2076
B) 0.6786
C) 0.3214
Explanation:A)

B) We find the probability that X=6, 7, or 8:

C) P(X≤5) = 1-P(X>5) = 1-0.6786 = 0.3214
Answer:
Option A is correct
The function
has real zeroes at x =-10 and x =-6
Explanation:
Given: The real zeroes or roots are x = -10, and x = -6
To find the quadratic function of degree 2.
where α,β are real roots. ....[1]
Here, α= -10 and β= -6
Sum of the roots:
α+β = -10+(-6) = -10-6 = -16
Product of the roots:
αβ = (-10)(-6)= 60
Substitute these value in equation [1] we have;

Therefore, the quadratic function for the real roots at x =-10 and x =-6 ;

Answer:
1 week, 14 days, 24 hours = 1 day,
= 4 days + 7 days + 10 hours + 16 hours
= 11 days + 26 hours
= 11 days 26 hours