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puteri [66]
3 years ago
7

What is the quotient? StartFraction 5 Superscript negative 6 Over 5 cubed EndFraction

Mathematics
1 answer:
vampirchik [111]3 years ago
6 0

Answer:

a

Step-by-step explanation:

1/5^9

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Suppose that the probabilities of a customer purchasing​ 0, 1, or 2 books at a book store are 0.20.2​, 0.30.3​, and 0.50.5​, res
PIT_PIT [208]

Answer:

0.78

Step-by-step explanation:

We have the next probability distribution:

X            P(X)

0            0.2

1             0.3

2            0.5

As we can see when we add all the probabilites the result is 1. Now calculating the mean we have:

mean=\mu=(0\times0.2)+(1\times 0.3)+(2\times 0.5)=0+0.3+1=1.3

The standard deviation is:

\sigma=\sqrt{\sum(x-\mu)^{2}(P(x))}

Then using the data that we have:

\sigma=\sqrt{\sum(x-\mu)^{2}(P(x))}\\\sigma=\sqrt{(0-1.3)^{2}(0.2)+(1-1.3)^{2}(0.3)+(2-1.3)^{2}(0.5)}\\\\\sigma=\sqrt{(-1.3)^{2}(0.2)+(-0.3)^{2}(0.3)+(0.7)^{2}(0.5)}\\\\\sigma=\sqrt{(1.69)(0.2)+(0.09)(0.3)+(0.49)(0.5)}\\\\\sigma=\sqrt{0.338+0.027+0.245}\\\\\sigma=\sqrt{0.61}\\\\\sigma=0.78\\

Then the standard deviation is 0.78

6 0
3 years ago
How could I write this out?
Crazy boy [7]

Answer:

1.6 divided by 8 is 0.2

Step-by-step explanation:

7 0
3 years ago
Karla had $138.72 in her checking account. She wrote checks for $45.23 and $18. Then she made a deposit for 75.85 into her accou
vampirchik [111]

Answer:

$151.34

Step-by-step explanation:

First, Karla starts with $138.72.

Then Karla writes checks for $45.23 and $18.00. This means the money will be withdrawn, so let's subtract these from the total.

$138.72 - $45.23 - $18.00 = $75.49

Now, Karla has $75.49 in her account.

However, a $75.85 deposit is made to her account. So let's add this back to the total.

$75.49 + $75.85 = $151.34

So after all the transactions, Karla has $151.34 in her checking account.

5 0
3 years ago
The local farmer’s market sells a 4-pound basket of pears for $6.00. What is the price per pound?
Artyom0805 [142]

Answer:

1.50

Step-by-step explanation:

divide 6.00 by 4 and you get 1.5

5 0
3 years ago
Can someone please help? A ferris wheel is drawn on a coordinate plane so that the first car is located at the point ​(0​,10​).
Ugo [173]

Answer:

(10,0)

Step-by-step explanation:

When it comes to rotations by 90 degrees or 270 degrees, you just have to switch the order of x- and y- coordinates. Then find the sign by considering which quadrant will it be. In this case, it is originally on the positive y-axis and now it would be +ve x-axis.

5 0
4 years ago
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