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3 years ago

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Mathematics

2 answers:

sattari [20]3 years ago

5 0

Answer:

The answer is 1/2

Step-by-step explanation:

nataly862011 [7]3 years ago

3 0

Answer:

The answer is 1/2

Step-by-step explanation:

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PLEASE HELP ME I BEG YOU PLEASE PLEA PLEASE

goldenfox [79]

The first one is the first one
The second one is the fourth one
The third one is the third one
The fourth one is the second one
The fifth one is the third one
The sixth one is the second one

8 0

3 years ago

A weather station on the top of a mountain reports that the temperature is currently 0°C and has been falling at a constant rate

MA_775_DIABLO [31]

Answer:

1 hour ago would be 3C.

3 hours ago would be 9C.

4.5 hours ago would be 13.5

Step-by-step explanation:

5 0

3 years ago

Write the matrix equation as a system of linear equations without matrices. [Start 3 By 3 Matrix 1st Row 1st Column 1 2nd Column

ASHA 777 [7]

Answer:

$x-2y-4z=8\\5x-4y+7z=5\\-7x+5y+2z=-3$

Step-by-step explanation:

Given the matrix equation below:

$\left(\begin{array}{ccc}1&-2&-4\\5&-4&7\\-7&5&2\end{array}\right)\left(\begin{array}{ccc}x\\y\\z\end{array}\right) =\left(\begin{array}{ccc}8\\5\\-3\end{array}\right)$

We are required to write the matrix equation as a system of linear equations without matrices.

$\left(\begin{array}{ccc}1&-2&-4\\&&\\&&\end{array}\right)\left(\begin{array}{ccc}x\\y\\z\end{array}\right) =\left(\begin{array}{ccc}8\\&\\&\end{array}\right)$is equivalent to: x-2y-4z=8$

$\left(\begin{array}{ccc}\\5&-4&7\\&&\end{array}\right)\left(\begin{array}{ccc}x\\y\\z\end{array}\right) =\left(\begin{array}{ccc}&\\5\\&\end{array}\right)$ is equivalent to: 5x-4y+7z=5$

$\left(\begin{array}{ccc}&\\&\\-7&5&2\end{array}\right)\left(\begin{array}{ccc}x\\y\\z\end{array}\right) =\left(\begin{array}{ccc}&\\&\\-3\end{array}\right)$ is equivalent to: -7x+5y+2z=-3$

Therefore, we have the system of equations:

$x-2y-4z=8\\5x-4y+7z=5\\-7x+5y+2z=-3$

8 0

3 years ago

Taylor wants to read 2 books. One book has 232 pages and the other has 184 pages. She needs to return the books to the library i

dalvyx [7]

i think you add 232 and 184 then divide by 13.

Hope this helps!

5 0

4 years ago

PLEASE HELP 25 POINTS CALC MULTIPLE CHOICE

Liula [17]

Answer:

The correct answer is option B

Step-by-step explanation:

Hi! Nice to meet you and have a great day.

8 0

3 years ago