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notka56 [123]
3 years ago
10

Simplify three to the negative ninth divided by three to the negative twelfth

Mathematics
1 answer:
kakasveta [241]3 years ago
6 0

Answer:

27

Step-by-step explanation:

sorry if i'm wrong

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Two construction contracts are to be randomly assigned to one or more of three firms: I, II, and III. Any firm may receive both
vichka [17]

Answer:

The owner's total profit is $120,000.

Step-by-step explanation:

Assume that:

<em>X</em>₁ = contract is assigned to firm 1

<em>X</em>₂ = contract is assigned to firm 2

The sample space for assigning the two contracts is:

S = {(I, I), (I, II), (I, III), (II, I), (II, II), (II, III), (III, I), (III, II) and (III, III)}

There are total of 9 possible combinations.

So, the probability of selecting any of the combination is, 1/9.

Compute the probability distribution of <em>X</em>₁ and <em>X</em>₂ as follows:

<em>X</em>₁      P (<em>X</em>₁)                      <em>X</em>₂        P (<em>X</em>₂)

0        4/9                        0           4/9

1         4/9                        1            4/9

2         1/9                        2           1/9

Compute the expected values of <em>X</em>₁ and <em>X</em>₂ as follows:

E(X_{1})=\sum X_{1}\cdot P(X_{1})\\\\=(0\times\frac{4}{9})+(1\times\frac{4}{9})+(2\times\frac{1}{9})\\\\=\frac{6}{9}\\\\=\frac{2}{3}               E(X_{2})=\sum X_{2}\cdot P(X_{2})\\\\=(0\times\frac{4}{9})+(1\times\frac{4}{9})+(2\times\frac{1}{9})\\\\=\frac{6}{9}\\\\=\frac{2}{3}

It is provided that each contract will yield a profit of $90,000.

Compute the owner's total profit as follows:

\text{Total Profit}=\text{Profit}\times [E(X_{1})+E(X_{2})]

                   =90000\times[\frac{2}{3}+\frac{2}{3}]\\\\=120000

Thus, the owner's total profit is $120,000.

7 0
3 years ago
Help meeeeeeeeeeeeeee​
astraxan [27]

Answer: I've done these before but what you nee do do is look over all of the answers place them and then you will have a 100% answer if you still can figure it out just dm me!

Step-by-step explanation:

8 0
3 years ago
I dont get it yall help​
lukranit [14]

Answer:

x = 3

Step-by-step explanation:

8x- 5= 19

8x= 19+5

8x= 24

x= 24/ 8

x= 3

3 0
3 years ago
Read 2 more answers
Simplify the following and write your answer in simplest form
viktelen [127]
In simplest form it is 25 over 9
5 0
3 years ago
Write the equation of the line f(3)=6 and f(8)=10
LuckyWell [14K]
F(x)=y
so
f(3)=6 and f(8)=10
the points are
(x,y)
(3,6)
(8,10)

y=mx+b
m=slope
b=yintercept

to find the slope between 2 points, (x1,y1) and (x2,y2)
the slope is (y2-y1)/(x2-x1)
(3,6)
(8,10)
slope=(10-6)/(8-3)=4/5

y=4/5x+b
find b


the equation for a line with slope m and a pointn on it is (x1,y1) is
y-y1=m(x-x1)

a point is (3,6)
y-6=4/5(x-3)
y-6=4/5x-12/5
add 6 or 30/5
y=4/5x+18/5
3 0
3 years ago
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