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Aleksandr [31]
3 years ago
10

X - 2y = -3 2x + y = -1

Mathematics
2 answers:
lianna [129]3 years ago
7 0

Answer:

it can only be simp[lified

so it will be

(x+2x)+(y+2y)=-3-1

3x+3y=-4

cannot be solved further

Step-by-step explanation:

bezimeni [28]3 years ago
3 0

Answer:

y = 1

x = -1

Step-by-step explanation:

x - 2y = -3, then x = 2y - 3

2x + y = -1

substitute for x:

2(2y - 3) + y = -1

4y - 6 + y = -1

5y = 5

y = 1

x = 2 - 3 = -1

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3 years ago
Evaluate f(x)=e2x−1+2 when x=3. Give an approximate answer rounded to three decimal places.
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Answer:

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Step-by-step explanation:

e = 2.71828

Step 1: Define

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Step 2: Substitute and evaluate

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When solving the equation, which is the best first step to begin to simplify the equation?
olasank [31]

Answer:

hope that helps!

Step-by-step explanation:

3 0
3 years ago
Let v be an eigenvector of a matrix A with a corresponding eigenvalue ?=2. Find one solution x of the system Ax=v.
Murljashka [212]

Answer with explanation:

For, a Matrix A , having eigenvector 'v' has eigenvalue =2

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→A=[a]

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It is given that,

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For, k=2, the matrix [a-2 I] will become singular,that is

→ Determinant |a-2 I|=0

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→[a-I] v=0

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→[v]=[0]

→v=0

Now, corresponding eigenvector(v), when eigenvalue is 2 =0

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What is the product?
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