3 years ago

Will mark Brainlest help plsssss

Mathematics

1 answer:

r-ruslan [8.4K]3 years ago

7 0

Answer:

45 is answer I guess cuz my teacher taught me just like that

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Solve the system of equations.

PSYCHO15rus [73]

(2,0)
2(2) - 3(0) = 4
10(2) - 15(0) = 20

Hope this helps... mark as Brainliest plz

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3 years ago

It costs $150 to rent a party room at Pizza-n-Games, plus $6 per person for pizza and $5 per person for game tickets. The expres

goldfiish [28.3K]

Answer:

Step-by-step explanation:

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4 years ago

Read 2 more answers

A country's people consume 6.6 billion pounds of candy per year. Express this quanity in terms of pounds per person per month. N

dmitriy555 [2]

6.6 bil / 309, then do / 12 / 1

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4 years ago

Find the determinant of the nxn matrix A with 5's on the diagonal, l's above the diagonal, and O's below the diagonal. det (A) =

Vilka [71]

Answer:

n times 5

Step-by-step explanation:

A matrix Anxn of this way is called an upper triangular matrix. It can be proved that the determinant of this kind of matrix is

$a_{11}+a_{22}+...+a_{nn}$

In this case, it would be 5+5+...+5 (n times) = n times 5

We are going to develop each determinant by the first column taking as pivot points the elements of the diagonal

$det\left[\begin{array}{cccc}5&a_{12}&a_{13}...&a_{1n}\\0&5&a_{23}...&a_{2n}\\...&...&...&...\\0&0&0&5\end{array}\right] =5+det\left[\begin{array}{ccc}5&a_{23}...&a_{2n}\\0&5&a_{3n}\\...&...&...\\0&0&5\end{array}\right]=5+5+...+det\left[\begin{array}{cc}5&a_{n-1,n}\\0&5\end{array}\right]=5+5+...+5+5\;(n\;times)$

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4 years ago

Solve A=LW for A if L=12m and W=6m.

timurjin [86]

So,

All we have to do is multiply the length and the width.

A = 12 * 6 = 72 meters

A = 72 meters

5 0

3 years ago

Will mark Brainlest help plsssss​

Will mark Brainlest help plsssss