Answer:
The answer is below
Step-by-step explanation:
The possible outcome from rolling two dice is:
1,1 1,2 1,3 1,4 1,5 1,6
2,1 2,2 2,3 2,4 2,5 2,6
3,1 3,2 3,3 3,4 3,5 3,6
4,1 4,2 4,3 4,4 4,5 4,6
5,1 5,2 5,3 5,4 5,5 5,6
6,1 6,2 6,3 6,4 6,5 6,6
The total number of outcomes = 36
a)
P(sum of 5) = 4/36, P(sum of 6) = 5/36, P(sum of 7) = 6/36
Hence:
P(sum of 5 or sum of 6, or sum of 7) = P(sum of 5) + P(sum of 6) + P(sum of 7) = 4/36 + 5/36 + 6/36
P(sum of 5, 6, or 7) = 15 / 36
b)
P(doubles) = 6/36, P(sum of 6) = 5/36, P(sum of 8) = 5/36
Hence:
P(doubles or sum of 6 or sum of 8) = P(doubles) + P(sum of 6) + P(sum of 8) = 6/36 + 5/36 + 5/36
P(doubles or sum of 6 or sum of 8) = 16 / 36
c)
P(sum greater than 8) = 10/36, P(sum lesser than 3) = 1/36
P(sum greater than 8 or less than 3) = P(sum greater than 8) + P(sum lesser than 3) = 10/36 + 1/36
P(sum greater than 8 or less than 3) = 11 / 36
Part c has the least probability of occurrence, hence c is least likely to occur.
Answer:
Step-by-step explanation:
hello :
8(10 – 6q) + 3(–77 – 2)= 80-48q-231-6 = -48q-157
Cal problem!
given production
P(x)=75x^2-0.2x^4
To find relative extrema, we need to find P'(x) and solve for P'(x)=0.
P'(x)=150x-0.8x^3 [by the power rule]
Setting P'(x)=0 and solve for extrema.
150x-0.8x^3=0 =>
x(150-0.8x^2)=0 =>
0.8x(187.5-x^2)=0
0.8x(5sqrt(15/2)-x)(5sqrt(15/2)+x)=0
=>
x={0,+5sqrt(15/2), -5sqrt(15/2)} by the zero product rule.
[note: eqation P'(x)=0 can also be solved by the quadratic formula]
Reject negative root because we cannot hire negative persons.
So possible extrema are x={0,5sqrt(15/2)}
To find out which are relative maxima, we use the second derivative test. Calculate P"(x), again by the power rule,
P"(x)=-1.6x
For a relative maximum, P"(x)<0, so
P"(0)=0 which is not <0 [in fact, it is an inflection point]
P"(5sqrt(15/2))=-8sqrt(15/2) < 0, therefore x=5sqrt(15/2) is a relative maximum.
However, 5sqrt(15/2)=13.693 persons, which is impossible, so we hire either 13 or 14, but which one?
Let's go back to P(x) and find that
P(13)=6962.8
P(14)=7016.8
So we say that assigning 14 employees will give a maximum output.
Answer:
If y = 105, x should be 15: x =15
Step-by-step explanation: