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Bess [88]
3 years ago
12

2x - y = 5

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
6 0
Im pretty sure that the answer it is A. 7
because if you subtract 2 from 7 you get 5
Lesechka [4]3 years ago
5 0

The two equations are,

1. 2 x- y=5

2. x + 3 y =7

To determine the y-determinant, we will evaluate

\begin{vmatrix} 2& 5\\  1& 7\end{vmatrix}\\\\\\=14-5=9\\\\ As,D= \begin{vmatrix} a& b\\  c& d\end{vmatrix}\\\\ D= a d - b c

Option (B)→ 9 is correct y-Determinant.

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8 0
3 years ago
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3 0
3 years ago
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wariber [46]

Answer:

          [ry, yr, gy, yg, rg, gr]-Any three picks from this sample space.

Step-by-step explanation:

-The bag contains exactly 1r, \ 1y, \ 1g \ marbles.

-He picks one ball without looking, and chooses a second ball without replacing the first:

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The sample space of the second pick is therefore:

                               [ry, yr, gy, yg, rg, gr]

Hence, any three picks from the sample space are correct possible outcomes.

7 0
3 years ago
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Mariana [72]

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Step-by-step explanation:

5 0
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