Solve each system 9x - 8y = -4 -x - 4y=-24

Mathematics

2 answers:

algol [13]1 year ago

6 0

Thee ansssweeer is. (4,5)

Crazy boy [7]1 year ago

4 0

The answer for both equations are (4,5)

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Step-by-step explanation:

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2 years ago

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Ipatiy [6.2K]

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3 years ago

jonathan has a collection of 400 marbles. Blue marbles make up17%, percent of his collection. How many blue marbles does Jonatha

dsp73

17% of 400 is 68.
Another way u can do it is 17% of 100 four times since its easier to do.
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2 years ago

Read 2 more answers

Given the matrices: 1 2 A= 1 -1 2 1 1 B= 3 4 Calculate AB: C11 C12 [2.1] х 1 2 3 4 C21 C22 C11 = C12 = -2 C22 - C215 DONE

eduard

Answer:

$\:c_{11}=-2,\:\:\:c_{12}=-2$

$\:c_{21}=5,\:\:\:c_{22}=8$

Step-by-step explanation:

Given the matrices

$A=\begin{pmatrix}1&-1\\ 2&1\end{pmatrix}$

$B=\begin{pmatrix}1&2\\ \:3&4\end{pmatrix}$

Calculating AB:

$\begin{pmatrix}1&-1\\ \:\:2&1\end{pmatrix}\times \:\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}=\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}$