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2 years ago

First, rewrite

Mathematics

1 answer:

Black_prince [1.1K]2 years ago

4 0

Answer:

this was hard my advise is to look it up sorry i couldnt help

Step-by-step explanation:

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Need help asap please!

Montano1993 [528]

Answer:

determinant: -15
x = 3; y = 4; z = 1

Step-by-step explanation:

The matrix of coefficients has one row corresponding to each equation. The constants in that row are the coefficients of the variables in the equation. Coefficients are listed in the same order on each row. A missing term is represented by a coefficient of 0.

<h3>coefficient matrix, determinant</h3>

The first attachment shows the coefficient matrix and its determinant.

<h3>solution</h3>

The solution to the system of equations can be found by left-multiplying the constant vector by the inverse of the coefficient matrix.

$\textbf{A$\cdot$X}=\textbf{B}\\\\\textbf{X}=\textbf{A}^{-1}\cdot\textbf{B}$

This multiplication is shown in the second attachment. It tells us ...

$\textbf{X}=\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}3\\4\\1\end{array}\right]$

4 0

2 years ago

Can anyone solve it the picture is given below.<br>can you solve all this questions

Inga [223]

Now you can see if I have to go back and get the phone off the screen when you

8 0

3 years ago

NEED HELP!!?? 40 pts See attached image (Pre-Cal)

Naya [18.7K]

Answer:

8(cos(π) +i·sin(π))

Step-by-step explanation:

The number in parentheses has a magnitude of ...

√(1^2 +(√3)^2) = √4 = 2

Then the cube of that number will have a magnitude of 8, eliminating the 2nd and 4th choices

The angle of the number in parentheses is ...

arctan(-√3/1) = -π/3

Then 3 times that angle will be -π, also π.

The number of interest has a magnitude of 8 and an angle of π, so is written in the desired form as ...

8(cos(π) +i·sin(π)) . . . . . matches the 3rd choice

7 0

3 years ago

What is the difference between Maggi and Pasta? -,-

malfutka [58]

I believe the difference is where it is made ^^

maggi is made in India and pasta is made in Italy

they may also have different sauces and spices used which also helps differ between the two :3

4 0

3 years ago

Read 2 more answers

Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the mean, median, mode, and midra

Svetlanka [38]

Answer:

a. 20.23

b. 14.1

c. 8.3, 9.2, 9.8, 12.1, 13.5, 14.7, 26.5, 34.7, 36.5, 37

d. 22.65

Step-by-step explanation:

Sum = 202.3

Count = 10

Mean = 202.3 / 10

Mean = 20.23

Since there is an even number of data values the median is the mean of the two data values in the middle, calculated as follows;

8.3, 9.2, 9.8, 12.1, 13.5, 14.7, 26.5, 34.7, 36.5, 37

Median = (13.5 + 14.7) / 2

Median = 14.1

Mode is the value or values in the data set that occur most frequently. Since all are occurred once so all the values will be considered as Mode;

Mode = 8.3, 9.2, 9.8, 12.1, 13.5, 14.7, 26.5, 34.7, 36.5, 37

Midrange = (Highest Value + Lowest Value) / 2

Midrange = (37 + 8.3) / 2

Midrange = 22.65

7 0

4 years ago