Help me plssss it’s due tonight

A restaurant has a main location and a traveling food truck. The first matrix A shows the number of managers and associates empl

denis-greek [22]

Answer:

A*B= $\left[\begin{array}{cc}705&80\\121&14 \end{array}\right]$

Step-by-step explanation:

Given A= $\left[\begin{array}{cc}5&25\\1&4\end{array}\right] \left[\begin{array}{cc}41&6\\20&2\end{array}\right]$ = B

Finding A*B means multiplying the first row with the first column and first row with the second column would give the first row elements. The second ro0w elements are obtained by multiplying the second row with the 1st column and second row with the second column.

so A*B= $\left[\begin{array}{cc}5*41+ 25*20&5*6 + 25*2\\ 1*41+4*20 & 1*6+ 4*2\end{array}\right]$

Now multiply and add the separate elements of the matrix A*B=

$\left[\begin{array}{cc}205+500&30+50\\41+80&6+8\end{array}\right]$

A*B= $\left[\begin{array}{cc}705&80\\121&14 \end{array}\right]$

b. The 1st element of the 1st row shows the salaries of the managers and 2nd element of the 1st row the salaries of associates at the restaurant . The second row 1 st element shows the benefits of the managers and 2nd element the benefits of the associates at the food truck.

c. The total cost of salaries for all employees (managers and associates) at the restaurant = 705 + 80 = 785

Total cost of benefits for all employees at the food truck= 121 + 14= 135

6 0

2 years ago

If the correlation coefficient has a negative value, then the coefficient of determination:_________.a. can take on either a neg

GarryVolchara [31]

Answer:

Step-by-step explanation:

The sign of r depends on the sign of the estimated slope coefficient b1:

If b1 is negative, then r takes a negative sign.

If b1 is positive, then r takes a positive sign.

That is, the estimated slope and the correlation coefficient r always share the same sign. Furthermore, because r2 is always a number between 0 and 1, the correlation coefficient r is always a number between -1 and 1.

One advantage of r is that it is unitless, allowing researchers to make sense of correlation coefficients calculated on different data sets with different units. The "unitless-ness" of the measure can be seen from an alternative formula for r, namely:

r=∑ni=1(xi−x¯)(yi−y¯)∑ni=1(xi−x¯)2∑ni=1(yi−y¯)2−−−−−−−−−−−−−−−−−−−−−−−√

If x is the height of an individual measured in inches and y is the weight of the individual measured in pounds, then the units for the numerator is inches × pounds. Similarly, the units for the denominator is inches × pounds. Because they are the same, the units in the numerator and denominator cancel each other out, yielding a "unitless" measure.

Another formula for r that you might see in the regression literature is one that illustrates how the correlation coefficient r is a function of the estimated slope coefficient b1:

r=∑ni=1(xi−x¯)2−−−−−−−−−−−−√∑ni=1(yi−y¯)2−−−−−−−−−−−√×b1

7 0

2 years ago

Read 2 more answers

What property is (6+2)+1=6+(2+1)

Arada [10]

Answer:

i believe it is associative property

Step-by-step explanation:

5 0

1 year ago

Please helpp meeeeeee

Hatshy [7]

1+1=38 no problmmmmmmmmmmmmmmmmmm

3 0

2 years ago

Two different suppliers are competing to supply a particular part for a new Boeing airliner. The Japanese supplier charges J(n)

satela [25.4K]

Answer:

(a) The Japanese Company will be preferred due to less charges.

(b) The Italian Company will be preferred due to less charges.

(c) The Italian Company will be preferred due to less charges.

(d) The Japanese Company will be preferred due to less charges.

Step-by-step explanation:

The complete question is:

Two different suppliers are competing to supply a particular part for a new Boeing airliner. The Japanese supplier charges J(n) dollars for n parts whereas the Italian supplier charges I(n) dollars for n parts.

(a) Which supplier should be used to supply a large number of parts if

$\lim_{n \to \infty} \frac{J(n)}{I(n)} = 0$

(b) Which supplier should be used to supply a large number of parts if

$\lim_{n \to \infty} \frac{J(n)}{I(n)} =$ ∞

(c) Which supplier should be used to supply a large number of parts if

$\lim_{n \to \infty} \frac{J(n)}{I(n)} = 5$

(d) Which supplier should be used to supply a large number of parts if

$\lim_{n \to \infty} \frac{J(n)}{I(n)} = 0.2$

ANSWERS:

(a)

Applying the given limits will result in:

J(∞)/I(∞) = 0

So either, I(∞) must be ∞ or J(∞) must be zero in order to give a result of zero.

Hence, the Japanese Company will be preferred due to less charges.

(b)

Applying the given limits will result in:

J(∞)/I(∞) = ∞

So either, J(∞) must be ∞ or I(∞) must be zero in order to give a result of infinity.

Hence, the Italian Company will be preferred due to less charges.

(c)

Applying the given limits will result in:

J(∞)/I(∞) = 5

J(∞) = 5*I(∞)

So the charges of Japanese Company are 5 times the charges of Italian Company,

Hence, the Italian Company will be preferred due to less charges.

(d)

Applying the given limits will result in:

J(∞)/I(∞) = 0.2

J(∞) = I(∞)/5

I(∞) = 5*J(∞)

So the charges of Italian Company are 5 times the charges of Japanese Company,

<u>Hence, the Japanese Company will be preferred due to less charges.</u>

3 0

2 years ago