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3 years ago

5

Hello, I am stuck on how to solve the matrix problem of x - y = 5

1 answer:

Sergio [31]3 years ago

4 0

If you’re trying to elimination the answer would be (14,9)

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The axis of symmetry for a function in the form f(x) = x2 + 4x − 5 is x = −2. What are the coordinates of the vertex of the grap

Studentka2010 [4]

Answer:

D) $(-2,-9)$

Step-by-step explanation:

<u>Vertex Form of a Vertical Parabola:</u>

$y=a(x-h)^2+k$

Vertex -> $(h,k)$

Axis of Symmetry -> $x=h$

Vertical Scale Factor -> $a$

To turn $f(x)=x^2+4x-5$ into vertex form, we need to complete the square on the right side
Therefore, if $f(x)=0$ , then $0+9=x^2+4x-5+9$ completes the square on the right side
This becomes $9=(x+2)^2$
This means that our function in vertex form is $f(x)=(x+2)^2-9$

Therefore, the vertex of the graph is $(h,k)=(-2,-9)$ .

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3 years ago

1 Negative numbers do not need the<br>negative sign (-) in front of them.<br>O True<br>O False

katrin [286]

Answer:

The answer is False

Step-by-step explanation:

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3 years ago

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A rectangular made of square tiles measures 8 tiles wide and 10 tiles long what is the length in tiles of a similar rectangle 12

Agata [3.3K]

There’s are ratio which would be 8/10. 12/x should equally 8/10. So it would be 14 tiles long.

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3 years ago

Joe earns $13.40 an hour and it's paid every two weeks. Last week he worked seven hours longer than the week before. His pay for

andre [41]

Answer: 51

Step-by-step explanation:

You divide both numbers

683.40 / 13.40

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3 years ago

What is the Product of x-3 and x-9

Serggg [28]

Answer:

x^2-12x+27

Step-by-step explanation:

(x-3)(x-9)=x^2-3x-9x+27=x^2-12x+27

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3 years ago