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3 years ago

Help will give brainlis to first answer

Mathematics

2 answers:

enot [183]3 years ago

8 0

I think it’s 9 but idk

AVprozaik [17]3 years ago

7 0

Answer:

Ok first off, 3² equals 3 x 3 = 9. So you're answer would be f (x) = 9.

Hope that was helpful...

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A manufacturing company employs two devices to inspect output for quality control purposes. The first device is able to accurate

Feliz [49]

Answer:

(a) fxy(x,y) = f(x), f(y)

(b) fx(x) = X = (99.3/100) x 4 = 3.972

(d) fy/2y = (99.7/100) of (2 x 4) = 7.976

(e) E(Y | X = 2) = 2.

(f) V(Y | X = 2) = 2

Step-by-step explanation:

fxy(x,y) = f(x), f(y), as the question presented the assumption that the devices are independent, their measurements must also be independent

Since the first device is able to accurately detect 99.3% of the defective items it receives and the total defective items sent is 4,

(b) fx(x) = X = (99.3/100) x 4 = 3.972

(d) fy/2y = (99.7/100) of (2 x 4) = 7.976

(Since the first device is able to accurately detect 99.7% of the defective items it receives and the total defective items sent is 4)

(e) E(Y | X = 2) = 2. If the second device measure 2 defective items (X = 2), first device will also detect 2 because the measure 99.3% and 99.7% accurately. Their measurements will be approximately equal.

f. V(Y | X = 2). Like the explanation for (e) above, any relations V(Y | X = 2) will also be 2

(g) X and Y are independent because the are measure

measurements on two different devices

4 0

3 years ago

Below is a set of data about temperatures. The range of a set of data is the distance between the lowest and highest value in th

iren [92.7K]

I get 27 degrees C!!!!!!!!!!

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3 years ago

Let´s try this again. Select all the correct equations.

nordsb [41]

Answer:

Step-by-step explanation:

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3 years ago

A customer has six (6) $1 bills, three (3) $5 bills, four (4) $10 bills, seven (7) quarters, ten (10) dimes, seven (7) nickels,

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He would use 9 bills, and 5 coins. (fours $10, one $5, four $1. three quarters, one dime, and one penny). I calculated it all to make sure the total came out as 49.86

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4 years ago

Read 2 more answers

Please help meee oh please

irakobra [83]

Collecting the data of this P.G., comes:

The 1st term $a_{1} = 648$ 
The 2nd term $a_{2} = 216$ 

The ratio $r = \frac {a2}{a1} 
$ 
The number of terms n = 8

The 8th term $a_{8} = ?$

The value of ratio, we have:
The ratio $r = \frac {a2}{a1}$
$r = \frac {a2}{a1} = \frac{216}{648} \frac{\div6}{\div6} = \frac{36}{108} \frac{\div6}{\div6} = \frac{6}{18} \frac{\div6}{\div6} \to\:r= \frac{1}{3}$

Applying the general term formula of P.G., comes:
 $a_{n} = a_{1} *r^{n-1}$
$a_{8} = 648 * (\frac{1}{3}) ^{8-1}$
$a_{8} = 648 * (\frac{1}{3}) ^{7}$
$a_{8} = 648 * \frac{1}{3^7}$
$a_{8} = 648 * \frac{1}{2187}$
$a_{8} = \frac{648}{2187}$
Simplify

$a_{8} = \frac{648}{2187} \frac{\div9}{\div9} = \frac{72}{243} \frac{\div9}{\div9} \to\: \boxed{\boxed{a_{8} = \frac{8}{27}}}\end{array}}\qquad\quad\checkmark$

Answer:
$\boxed{\boxed{a_{8} = \frac{8}{27}}}$

6 0

4 years ago

Help will give brainlis to first answer​

Help will give brainlis to first answer